Newsletter of Nature Vancouver
June 2011 Volume 13 Issue 2
Nature Board of Directors
Position vacant as of publication
Society in 1918 by Professor John Davidson with the following Volunteer Co-ordinator; Member of Conservation Section;
objectives: Representative to BC Nature;
• To promote the enjoyment of nature Liaison with Vancouver Naturalist
• To foster public interest and education in the appreciation and
study of nature Cynthia Crampton
• To encourage the wise use and conservation of natural Past President; Field Trips Co-ordinator;
resources Lead on updating history of VNHS and Discovery Index
• To work for the complete protection of endangered species email@example.com 604-738-1405
• To promote access to, and maintenance of, natural areas in Bill Kinkaid
the vicinity of Vancouver. Vice President; Liaison with Camp Committee
Secretary; Representative to BC Nature
Vancouver Naturalist firstname.lastname@example.org 604-224-5668
Treasurer; Chair Membership Committee; Liaison with
Vancouver Naturalist is published four times a year by
P.O. Box 3021, Vancouver, BC V6B 3X5
Reproduction without permission is prohibited.
Director at Large
Editor: Julian Hudson 604-278-4451
Liaison with Botany and Geology Sections;
Please submit all material for publication to
Representative on various stakeholder groups
Deadlines for submissions
February 20, May 20, August 14 and November 14
Liaison with and Chair of the Birding Section; Co-ordinator of
General Evening Programs and Education Workshops
Full inside page: $150.00
Half inside page: $90.00
Quarter inside page: $60.00
Liaison with Website Committee
*Pay in full with the first issue, and receive 4 ads for price of 3.
Visit NatureVancouver on the Web Viveka Ohman
Liaison with Marine Biology Section
www.naturevancouver.ca email@example.com 604-531-3401
Website maintained by Daniel Overmyer
Kelly Sekhon and Murat Gungoraydinoglu
firstname.lastname@example.org Chair, Conservation Section
Cover Photo: Flowing Water by Maxim Yushchenko Nigel Peck
Third Place in 2011 Photo Competition, Membership outreach
“Other Natural History” Category email@example.com 604-255-0121
Illustrations by Jenny Hards
2 Vancouver Naturalist June 2011
In This Issue
Society News and Information 3 Nature Vancouver archives are maintained at Vancouver City
Archives by Mike McNulty. For more information, please
General Evening Programs/Section Programs 4-6 contact Mike at firstname.lastname@example.org or 778-235-1303.
Extension of Iona Regional Park 7 Discovery
Discovery is an annual journal of natural history published by
Proposed Marina at Richmond Island 11-13
Nature Vancouver as a service to its members. Non-members
may also subscribe. Co-ordinating Editor, Jeremy McCall,
Nature Vancouver Field Trips 8-10
email@example.com or 604-876-7694. Book Review Editor,
Summer Picnic 14 Christine Adkins, firstname.lastname@example.org or 604-731-6377.
Young Naturalists’ Club 15 Finance Committee
Chair: Bob Dyer, email@example.com 604-922-9798.
Society Chair: Jeremy McCall firstname.lastname@example.org 604-876-7694.
Secretary: Sandra Booth, email@example.com 604-926-6914.
News and Information Nature Tours
Occasionally, nature tours to areas farther afield are organised
The 93rd AGM was a success and well attended. The Board by Nature Vancouver. Please contact Jude Grass at judegrass@
was elected and presentations were made to the recipients of shaw.ca or 604-538-8774 if you have any suggestions.
volunteer awards, the annual photography competition awards
and the Nature Vancouver scholarship. Details will be published Nature Vancouver Photo Competition
in the September newsletter. The winning and runner-up photos This annual competition is held in March. Members are eligible
from the photo competition can be viewed online in the member to enter digital photos in five different categories. Photos by
photo gallery section of our website (www.naturevancouver.ca). Young Naturalists are eligible as a separate category. Send
your photos to Ron Long at firstname.lastname@example.org or 604-469-1651
The following is a list of volunteer awards recipients: between Jan 1 and Feb 28.
(Details of these awards can be found in the previous
newsletter.) Nature Vancouver Scholarship
Kaye and Charles Ney Award: Every year a scholarship of $500 is awarded to a student
Louise Irwin registered in an institute of higher learning in BC. More details
Davidson Award for Conservation: available on the website or from the Finance Committee Chair.
Kay Beamish Award for Nature Education: Reference Binder
Eva Nagy Up-to-date information about past and present activities, by-
Frank Sanford Award for Community Service: laws, procedures and policies of Nature Vancouver is compiled
Marja de Jong Westman in a reference binder. Volunteers can obtain a copy from Daphne
Garibaldi Awards for Service to Nature Vancouver: Nagorsenat at email@example.com or 778-230-8007.
Sue Garber, Jeremy Gordon, Noriko Nakaya
and Joan Lopez Summer Camp
Annual Summer Camp is organised by a committee chaired
by Don Griffiths. For more information please contact Don at
Welcome to New Members firstname.lastname@example.org or 604-228-1450.
by Sandra Booth, Membership Secretary
Welcome to all new and rejoining members. Our online and All programs, field trips and other activities of Nature Vancouver
therefore paperless newsletter is a favorite for many of us. are made possible by a dedicated group of volunteers. New
Please notify me if this is of interest to you. My e-mail is members are always welcome to contribute their time and
email@example.com. expertise. To find out more about how you can help please
contact Margaret Coutts at firstname.lastname@example.org or 604-512-
New members as of the last newsletter: 1413.
John and Sherry Dale, Joan Turner, Ella LeGresley, Robert
Dunn, Grace Shaw, Dorothy Simons, Doris Fischer, Joseph Weekly E-mail Bulletins
McKenna, Gregory Barkovich and family, Derek Killby, Patrick To receive weekly news and updates about programs and field
Oswald, Arthur and Elishka Alexander, Elizabeth Wootten, trips, please contact Kelly Sekhon at email@example.com.
Vancouver Naturalist June 2011 3
Evening Programs Alpine Meadow Hiking
The General Evening Programs of Nature Vancouver are Durrand Glacier Chalet in the Selkirks
held from January through April and September through
November on the fourth Thursday of each month at 7:30 p.m. Hiking trails, blooming meadows… waterfalls and mountain
at the Unity Church, 5840 Oak Street, Vancouver. These lakes… marmots, mountain goats and birds… over one
programs are open to the public and members are encouraged hundred different flowers, a mecca for naturalists and
to invite their friends. For more information and suggestions for photographers.
future programs please contact the Co-ordinator Jude Grass:
Guided or on your own…helicopter access only, from
firstname.lastname@example.org or 604-538-8774. Revelstoke, BC…Swiss-style alpine chalet…first-class meals
and lodging, one or two-person rooms…always smiling and
All evening programs resume in September. For programs helpful staff!
not yet scheduled, please refer to the website and the
September issue of this newsletter.
Marine Biology Section Experience
Chair: Joan Lopez email@example.com 604-682-1617 Box 2998, Revelstoke, BC V0E 2S0 Canada
The Marine Biology Section evening programs are held from
January through April and September through December, on E-mail: firstname.lastname@example.org
the second Thursday of each month at 7:30 p.m. at the Unity Website: www.selkirkexperience.com
Church 5840 Oak St. , Vancouver. These programs are open to
the public, and members are encouraged to invite their friends.
For more information and suggestions for future programs,
please contact Joan Lopez.
Chair: David Cook email@example.com 604-924-0147
The Nature Vancouver Geology Section conducts field trips
throughout the Vancouver region during the year. The present
Geology Section is a relatively recent reintroduction of a Section
that was strong in former years of Nature Vancouver.
In most instances the geology field trips also include
observations on the ecology of the area visited, the purpose
being to show the relationship between natural ecosystems and
the substrate upon which they depend.
The Geology Section also has an ongoing program of compiling
outlines of self-guiding geology field trips. These can be found
on the Nature Vancouver website.
For details of the geology field trips refer to the Field Trips
section of Vancouver Naturalist and the Nature Vancouver
4 Vancouver Naturalist June 2011
Nature Vancouver Birders’ Nights
Birding Section Birders’ Nights are held on the first Thursday of each month
from September to May at 7:30 p.m. in the Parish Hall of
St. Mary (Kerrisdale) Anglican Church, 2490 West 37th
Chair: Jude Grass firstname.lastname@example.org 604-538-8774 Avenue (at Larch Street), Vancouver. The programs start
with introductions and items of general interest. The main
Committee Members: presentation begins after a short break for light refreshments.
Martin McNicholl email@example.com 604-294-2072 These programs are open to the public and members are
Adrian Grant Duff firstname.lastname@example.org 604-263-7957 encouraged to invite their friends. For more information and
Wayne Weber email@example.com 604-597-7201 suggestions for future programs please contact the Program Co-
Julian Hudson firstname.lastname@example.org 604-278-4451 ordinator, Jude Grass at email@example.com or 604-538-8774.
Thursday, September 1
Birding in Bulgaria
Jo Ann MacKenzie and Viveka Ohman
Wandering Tattler Bulgaria is situated in the south-eastern corner of the Balkan
peninsula with a wide range of habitats: alpine mountains,
The newsletter of the Birding Section, Wandering
Tattler, includes articles on almost all aspects of rivers, canyons, meadows, forests, coastal wetlands and sand
birding: behaviour, optics, field trips, humorous beaches on the Black Sea. The flora and fauna are quite diverse,
anecdotes, site guides and much, much more! with about 410 bird species recorded. Since its founding 1988,
the Bulgarian Society for the Protection of Birds (BirdLife
The Wandering Tattler runs from September through International Partner) has worked to make practical contributions
April and is available at Birders’ Night for $1.50
or by mail subscription for $20. To subscribe or to to Dalmatian Pelican, Black and Griffon Vultures, Eastern
submit an article, please contact Editor, Jude Grass Imperial Eagle, Red-breasted Goose and others. Bulgaria is a
at firstname.lastname@example.org or 604-538-8774. rewarding birding destination.
Jo Ann MacKenzie and Viveka Ohman are avid birders and long
members of Nature Vancouver.
Thursday, October 6
Hybrid Sapsuckers: a nuisance or a rare opportunity?
Dr. Sampath S. Seneviratne
Continental scale warming and cooling events have triggered
Bird Checklists eastern bird species to contact with their western counterparts.
Vancouver Area Bird Checklists are available British Columbia is placed in the centre of this melting. With
from: colleagues at Dr. Darren Irwin’s Biogeography Laboratory at
• Wild Birds Unlimited, 1302 West Broadway, UBC, I examine hybrid zones of sapsuckers in BC resulted from
Vancouver and 1190 Marine Drive, North these broader biogeographic events to understand more about
• Reifel Bird Sanctuary giftshop their taxonomic status and some of the underline evolutionary
• Birders’ Nights reasons behind hybridization. Across the only known contact
• http://www.naturevancouver.ca/Main_Birding zone of Red-breasted and Yellow-bellied Sapsuckers, the
variation of plumage characters and body size measurements
matched well with that of genetic characters. Therefore colour
and body measurements are reliable predictors for the genotype
in this species pair. As expected, the hybrids had mixture of both
phenotypic and genetic characters. According to these markers,
the present centre of this hybrid zone positioned at about 50km
Vancouver Area Rare Bird Alert west to the crest of Rocky Mountains, near the community of
604-737-3074 Mackenzie. Now I am looking at other similar hybrid zones of
sapsuckers in BC especially along the Hwy 20 from Bella Coola
Observations can be reported on the alert line or to Williams Lake area.
on the Nature Vancouver website
(Birding Section pages).
Dr. Seneviratne is with the Biodiversity Research Centre at
The Rare Bird Alert is operated by volunteers UBC and is currently working on postdoctoral research on the
from the Birding Section and is sponsored in part biogeography (speciation) of woodpeckers in western North
by Wild Birds Unlimited. America.
Vancouver Naturalist June 2011 5
Nature Vancouver Thursday, November 17
The Controversial Titan of American Natural History
Chair: David Cook email@example.com or 604-924-0147
Peppered with Daniel’s photographs of plant species named
Botany Nights are held from January through April and by Rafinesque, in this presentation Daniel will briefly share
September through November on the third Thursday of each the story of this early 19th-century naturalist. Rafinesque was
month at 7:30 p.m. at the Unity Church, 5840 Oak St., described as “the only (naturalist) who might clearly be called a
Vancouver. These programs are open to the public, and titan...amongst all the naturalists who have ever worked on the
members are encouraged to invite their friends. For more American continent”. A controversial figure, he was shunned
information and suggestions for future programs please contact and disregarded by his contemporaries, due in part to both his
David Cook. eccentricity and his (over)enthusiastic naming and renaming of
plant species and genera. Rafinesque died alone and in poverty,
Thursday, September 15 but his scientific legacy lives on.
Exciting Trends in Botanical Field Research
in British Columbia Daniel Mosquin is the Research Manager at UBC Botanical
Dr. Terry McIntosh Garden. He frequently travels throughout North America to
photograph plants and landscapes, and has a keen interest in
Terry McIntosh, PhD, plant ecologist and taxonomist, will give botanical history.
an overview of ‘what’s happening’ in botany these days in BC, at
least from one person’s perspective. For example, there are many
new discoveries. Many areas in BC have not been thoroughly
inventoried and botanists continue to make new finds. He
will also discuss the newest trends in botanical taxonmy (all
those name changes!). He will also address some of the issues
surrounding conservation of rare plant species and biodiversity-
Thursday, October 20
Some unique plants of southern Oregon
Chair: Daniel Overmyer firstname.lastname@example.org 604-732-6719
Southern Oregon is not that far from British Columbia in
distance but geologically and botanically it seems much farther. The Conservation Section meetings are held St. Mary’s
The unique geology that is found there has allowed an unusual (Kerrisdale) Anglican Church, 2490 West 37th Avenue (at
set of plants to evolve. The British Columbia naturalist finds Larch Street), Vancouver, on the second Wednesday of each
many old friends in southern Oregon but also many, often rare, month except for July, August and December, starting at 7:30
new species.This talk will look at the familiar and the unfamiliar PM. Most meetings take the form of round-table discussions on
aspects of the plants, birds, animals and landscapes of this conservation issues brought to the Section by Nature Vancouver
fascinating region. members or others for consideration and action.
Ron Long was a professional photographer at Simon Fraser The Section relies on members to identify local concerns related
University for 36 years. Now retired, he travels extensively and to conservation and development. The Section also invites
enjoys sharing his experiences and photographs with interested guest speakers to make presentations to larger audiences on
groups. conservation issues of special interest. Action arising from
Section meetings usually takes the form of letters to municipal,
provincial or federal decision-makers and may be undertaken
in conjunction with other associated organizations such as BC
Nature. Other forms of action may be through meetings with
decision makers, presentations to municipal councils, or use of
The meetings of the Conservation Section are open to all
members of Nature Vancouver. If you have a conservation
concern to bring to our attention, or if you would like to assist
with the Section’s research, letter writing and other projects,
please contact Daniel.
6 Vancouver Naturalist June 2011
Conservation Issues is naturalizing into a remarkable natural habitat with sand dunes,
dune grass, large headed sedge, and young alder and cottonwood
trees. The Spit is a nesting and feeding area for a number of bird
Conservation Committee Urges Metro Van species, such as killdeer and short eared owl, which are declining
to Expand Iona Park in numbers elsewhere. There appears to be no one monitoring
by Dorothy Woodhouse these changes nor is much effort being made to protect what is
The Nature Vancouver Conservation Section has recently written
to Metro Vancouver (formerly GVRD) Parks requesting that they Realizing the important natural values of North Arm Jetty/Iona
incorporate the North Arm Jetty also known as Iona Spit into the Spit, we have been in contact with Port Metro Vancouver’s
Metro Vancouver Parks System as an extension of Iona Beach Environmental Manager, who reported that they have no
Regional Park. plans for the area. The Port North Fraser Land Use Plan, now
presumably incorporated into Port Metro Vancouver planning
The North Arm Jetty is a federally owned structure and extends (though not confirmed), suggested that the Port ‘explore with
west of the present Metro Vancouver Iona Beach Park into other agencies the possible creation of an open air eco-museum
Georgia Strait. It is a control rock, mound jetty, first built from on the island which would involve facilities, staging areas,
1914-1917 and extended from 1925-1938. The Jetty was built interpretive theme signage and a public access trail system’.
to train the river into a navigable channel, the North Arm of An interpretive lookout has been suggested for the interface of
the Fraser River, now under the management of Port Metro Iona Beach Regional Park and Port lands as well as a buffer
Vancouver. Apart from the log storage on the northern edge of screen planting to enclose the Port industrial operations (the log
the Jetty, visitors will also note the Fibre Recovery Site, just salvage) for public safety and security. There is little sign of any
west of the Iona Beach Regional Park boundary. This site is a of these plans coming to fruition.
commercial lease from Port Metro Vancouver. It has been active
since the 1960s and reportedly recycles 90% of the debris from There is great potential to conserve this most interesting
the North Fraser. The remaining land on the Spit would appear natural habitat and to develop plans with Port Metro Vancouver
to fall within the ‘red’ designation in the port’s environmental for public education to describe the coexistence of industry
classification indicating that it is a most productive area and and nature in the North Fraser River Reaches. Therefore the
development would not usually be permitted. Conservation Section of Nature Vancouver has requested that
Metro Vancouver Parks Board move to extend Iona Beach
This western end of the Spit past the Fibre Recovery Site, which Regional Park to include the North Arm Jetty ‘Spit’. It is early
we are proposing be incorporated into Iona Beach Regional days yet in this effort so stay tuned for updates; we may need
Park, is presently accessible legally only by the beach. This area your help in this endeavour.
Text from letter received by the Conservation Section from Metro Vancouver Parks
Vancouver Naturalist June 2011 7
Nature Vancouver Field Trip Info Co-ordinator: Cynthia Crampton
General Information *NEW* Trip Difficulty Rating
Field Trips are offered almost every weekend by Nature Vancouver For risk management purposes Nature Vancouver uses a system of
and are the most popular activity for members. Non-members are classifying field trips by rating their level of difficulty and adding
welcome to join these trips as a way to review the activities of the an estimate of the time to be spent on the trail. The trip leader
Society but are asked to limit their participation to three events. is responsible for deciding on the appropriate classification in
Our liability insurance coverage only applies to members in good conjunction with the Field Trip Coordinator. The difficulty rating
standing. Those who participate do so at their own risk. Depending system is as follows:
on the nature of the field trip, participants will be required to sign a
Release of Liability form at the start of the trip. PDF copy of this A. Easy path or road with minimal elevation change and minimal
form is available on the website at http://www.naturevancouver. hazards.
ca/Main_Field_Trips. It is recommended that members read it
B. Trail with possible rocks, roots or other hazards. Moderate
before the day of the trip to avoid delays when signing it at the
gradient, occasional steep but short sections. Up to 100 m elevation
Important Information for Participants C. Moderately steep gradient. 100 m to 500 m elevation change.
Members planning to join these trips should contact the leader in
advance to confirm carpool arrangements, especially when ferry D. Constant steep gradient. 500 m to 1,000 m elevation change.
travel or border crossings are planned. Please do not call after 9
E. Any of the above with some scrambling, use of hands or
p.m. An adult must accompany children under 15. On trips to the
bushwacking. Not commonly found on regular day hikes but
United States, a valid passport or enhanced driver's licence is now
sometimes experienced during Summer Camp field trips.
required for identification and it is advisable to have additional
medical insurance as the BC Medical plan covers only a small The expected duration is then added to the letter category to obtain
portion of any medical costs in the US. For information on travel a combined letter/figure rating. Example: A C6 hike will be a C
to the United States, see http://www.cbp.gov/xp/cgov/travel. hike, as described above, with an estimated time on the trail of
6 hours. The estimated time spent during a field trip should be
Safety Tips for Participants estimated to the nearest hour, and should not include driving time
Consider the weather in the trip area (it is often very different or time spent on ferries and
from where you live) and bring suitable clothing and footwear!
Depending on destination and season, bring insect repellent, Information for Carpooling
sunscreen, a hat, lunch if necessary, more water than you think On all trips, passengers should share gas expenses with their driver.
you’ll need, raingear, walking poles and boots with deep-tread The suggested cost of carpooling is $10 per car / per hour of driving,
soles and ankle support. Stay together and stay on the trails. Keep the total cost to be shared by all passengers excluding the driver.
behind the coordinator (and ahead of the tail person, if there is one).
To avoid false alarms, please tell the coordinator if you’re leaving • For trips to West Vancouver, Cypress, Howe Sound, Squamish
the group and sign yourself off on the waiver form. and Whistler, car pool at McDonald’s in Park Royal, West
Vancouver. Take bus #250 or 257 Horseshoe Bay from any stop
Guidelines for Field Trip Leaders on Georgia Street downtown. From North Vancouver, take #239
In order to conduct field trips, leaders do not need to be especially or 255 Park Royal. Get off at the first stop after Taylor Way. Cross
knowledgeable about birds, plants or other aspects of nature, since on the pedestrian crossing directly behind the stop, turn right and
that sort of expertise is generally found among the participants. walk underneath the first overpass to the McDonald’s car park
However, it is essential that one person coordinate the organization where we meet.
of the trip for the safety and well-being of all participants. That • For trips to North Vancouver, Fraser Valley and Mt. Baker
person is the field trip leader - and that is you. These guidelines area, carpool at Franklin & Penticton in Vancouver. From
are important both for your own legal protection and that of downtown, take bus #10 Hastings or #16 29th Avenue Station.
Nature Vancouver. Please read them carefully. The full text of Get off at Kamloops Street (the first stop after Nanaimo) and walk
the Guidelines for Field Trip Leaders and the PDF copy of one block east and one north. From Skytrain, take bus #16 Arbutus
Release of Liability form are available on the website at http:// from 29th Avenue or Renfrew station and get off at Hastings and
www.naturevancouver.ca/Main_Field_Trips. Please return the Penticton. From north Burnaby, take bus #135 and from Coquitlam
completed forms to Field Trip Co-ordinator, Cynthia Crampton, or Port Moody, take #160 and get off at Nanaimo.
1230 Shorepine Walk, Vancouver, BC, V6H 3T8. • For trips to South Vancouver, Richmond, Delta and the
Islands, carpool at 49th and Ash in Vancouver. Meet near the
Public Transit Information southeast corner of Tisdall Park on the north side of 49th. Day
For public transit information in the Lower Mainland, contact parking is available on the west side of Ash and the north side of
TransLink at 604-953-3333 or http://www.translink.ca. For trips 49th west of Ash (on weekends only). By transit, take Canada Line
requiring a ferry journey, please confirm ferry sailing times. to 49th / Langara Station and walk one block west to Cambie. Or
Contact British Columbia Ferries at 1-888-223-3779 or http:// take bus # 49 between Dunbar and Metrotown, get off at Cambie
www.bcferries.com/ and walk one block west.
8 Vancouver Naturalist June 2011
Nature Vancouver Field Trip Schedule
Some trips not rated at time of publication.
Several of our members will be leading nature walks and talking
Saturday, June 18 about the western red cedar and Douglas-fir old growth trees,
Birding in Cypress Provincial Park forest ecology, birding, intertidal/marine, coastal bluff ecology,
We’ll cover three or four different areas depending on trail and snow geology, and the invasive plant removal and native plant restoration
conditions; expect some muddy or snowy areas. Pack lunch, water, programme. The walks are scheduled to take place before and
sunscreen, rain gear and bring water-resistant footwear. Carpool at after the picnic.
0800 at Park Royal McDonald’s or meet at the Highview Lookout at
0845. Parking in Provincial Parks is now free once again! Contact For more info, ideas you would like to share, ways you can help
Bill Kinkaid at email@example.com or 604-710-6329. out, finger food you can bring, and if you will be attending, please
contact Nellie Bacou at firstname.lastname@example.org. .By contacting us we
Saturday, June 25 can plan accordingly. Keep checking our website as more details
Birding field trip to the Pitt Polder in Pitt Meadows become available. See page 14 for “ad”.
Our initial walk will take us from Grant Narrows south, approx.
3 km, along the Pitt River Dyke. The highlight from our 2009 Saturday, July 16
outing was an American Redstart which we missed in 2010 but Hike in Cypress Provincial Park, West Vancouver
it was relocated there, three days after our outing. Highlights in Difficulty rating: B5
2010 were Gray Catbird, Eastern Kingbird, Band-tailed Pigeon & Celebrate Parks Day at Cypress with a loop hike up the original
Bullock’s Oriole. In June, in the Polder, expect the unexpected. Howe Sound Crest Trail (HSCT) through old-growth forest to the
Past rarities at this time of year have been Veery, Yellow-breasted Lions View, then down the new HSCT to Bowen Lookout, and
Chat, Black-throated Sparrow and Baltimore Oriole. Meet the on down to the Pumphouse Road to check out carnivorous plants
leader at 0815 in the Grant Narrows’ parking lot. Contact Larry and other special features. Then over to Yew Meadows to see
Cowan at 604-465-1402. what’s blooming along the Yew Lake Trail, reversing our usual
route. Bring lunch, beverage, protective clothing for changing
Friday, 1 July mountain weather. Hiking boots / poles advised as the HSCT up
Hike to Lindeman and Greendrop Lakes in Chilliwack is rough / rooty and down is gravelly. Carpool from South Park
Difficulty rating: C6 Royal McDonald’s at 0900 or meet in front of the new Cypress
This year’s Canada Day hike will be to Lindeman and Greendrop Creek Lodge (opposite the green Olympic Rings) at 1000. There
Lakes in the Chilliwack Valley. This is a moderately strenuous hike is a parking fee in effect. Contact Katharine Steig at katharine@
of about 13-14km return with an elevation gain of about 400 metres. steig.com or 604-922-7949 for further information.
Pack lunch, water, sunscreen, rain gear and bring good hiking boots.
Carpool at 0700 at Franklin and Penticton in Vancouver, or meet at Saturday, August 6
0815 at the Wendy’s on Vedder Road just south of the TransCanada Hike to Black Tusk Meadows in Garibaldi Provincial Park
Highway in Chilliwack (Exit 119). Contact leader Bill Kinkaid at Difficulty rating: D8
email@example.com or 604-710-6329. This will be a strenuous hike of about 22km return with an elevation
gain of about 950 metres. It’s a long upward trek to the meadows
Saturday, July 9 but once there it’s an easy and enjoyable meadow walk. Pack lunch,
Birding at Colony Farm Regional Park water, sunscreen, rain gear and wear good hiking boots. Carpool
On our 2010 outing notables were Lazuli Bunting, Eastern at 0700 at Park Royal McDonald’s or meet at 0815 at the Rubble
Kingbird, Band-tailed Pigeon, and Red-eyed Vireo. Join us this Creek trailhead 37km north of Squamish. NOTE: this parking lot
year and see what Colony Farm has to offer in 2011. Meet Larry at is infamous for vehicle break-ins, so please take all the necessary
the parking area at the east end of Colony Farm Rd. at 0815. Larry precautions. Contact Bill Kinkaid at firstname.lastname@example.org or
can be contacted at 604-465-1402. 604-710-6329.
Sunday, July 10 Saturday, August 6
Nature Vancouver Summer Picnic at Lighthouse Park in Birding the Dykes of North Pitt Meadows
West Vancouver We will follow the dyke from Grant Narrows to the bend in Neaves
The picnic will take place at the Phyl Munday Hut between 1200 Road; locally know as Dieter’s Corner. Expected species are Gray
and 1400. The hut will provide shelter for us from any inclement Catbird, Bullock’s Oriole and Eastern Kingbird. Meet your leader
weather and function as an outpost (starting point) for our scheduled Larry Cowan at the Grant Narrow’s parking area at 0830. Larry
walks. It has a kitchen but bring your own implements. can be contacted at 604-465-1402.
Nature Vancouver will provide beverages and fruit plates. Please Saturday, August 20
bring finger food to share with other members and your mug and Hike to Lake Ann at Mt. Baker
plate, if you can. Bring your enthusiasm. Come for the walks and Difficulty rating: C8
the picnic, or, just come for the picnic and a chance to socialize This trail drops from the road to a lush alpine meadow, and then
with fellow nature enthusiasts. Join us! Rain or shine! Everyone climbs to a rocky basin with spectacular views of Mounts Shuksan
is Welcome! and Baker. It’s a moderately strenuous hike of about 12km return
Vancouver Naturalist June 2011 9
Nature Vancouver Field Trip Schedule
with a total elevation gain of about 300 metres each way. Please We will keep a species list of seabirds, seaducks, and mammals as
note that depending on snow conditions this hike may begin lower we cruise the harbour. Please keep in mind that we hope to see a
down the road, adding about another 5km total, or another hike in lot of bird and mammal animal life, however we cannot make an
the area may be offered. A valid passport or Enhanced Driver’s appointment with wildlife. We may observe harbour seals hauled
Licence is required identification for border crossings; please check out on the log booms. We have several options depending on how
http://www.cbp.gov/xp/cgov/travel for current border restrictions. the day turns out: if it fits with the research schedule we may
Parking fees in effect. Carpool at Franklin and Penticton in visit the UBC Open Water Sea Lion Project; we may tow some
Vancouver at 0700, or meet at 0900 at the Glacier Ranger Station phytoplankton and krill nets; we may stop at The Reed Point Marine
in Washington. Please make sure to contact the leader beforehand, Education Centre – specializing in sealife of marinas.
especially if meeting us in Glacier. Pack lunch, lots of water,
sunscreen, rain gear and wear good hiking boots. Contact Bill An uncovered boat allows us to get closer to wildlife; however it
Kinkaid at email@example.com or 604-710-6329. leaves us more exposed to the elements. Please bring full raingear
and extra warm clothing. Bring a snack, lunch, water, binoculars
Saturday, August 27 and your camera. Carpool at Franklin and Penticton, in Vancouver
Hike in Cypress Provincial Park to Blue Gentian Lake at 0830. Be at Port Moody: Rocky Point Park parking lot close
Difficulty rating: B6 to the WC building no later than 0930. The fee is $20.00 per
This is a moderate hike from Hollyburn Ridge cross-country ski participant with a maximum of 15 people per boat. Registration
area and First Lake down to Blue Gentian Lake and back via will be confirmed on receipt of payment. To register, contact Nellie
West Lake. Expect king (blue) gentians, leathery grape ferns and Bacou at firstname.lastname@example.org or 604 221 1620.
Hollyburn history. Bring lunch, beverage, protective clothing for
changing mountain weather, and swimsuit for West Lake. Hiking Saturday, September 24
boots and walking stick advised; trails have rough/rooty sections. Port Moody Harbour Boat Tour #2
Carpool from South Park Royal McDonald’s in North Vancouver See September 23 trip for details.
at 0830 or meet at BC Parks info kiosk in the Cypress Bowl cross-
country ski area at 0930. Contact Katharine Steig at katharine@ Saturday, September 24
steig.com or 604-922-7949. Birding at Iona Regional Park
Join John Chandler for a half-day, late afternoon birding trip to
Saturday, September 3 Iona Regional Park in Richmond. We will be looking for migrants
Hike to Despair Pass in Manning Provincial Park including shorebirds and warblers. We’ll start by exploring the
Difficulty rating: D8 outer ponds and then work our way through the inner ponds. If you
Hike to Despair Pass and Snow Camp Mountain in Manning
are interested, you can walk the South Jetty before the field trip.
Provincial Park. This will be a strenuous full day hike of Dress for chilly and/or wet weather. Meet John in the parking lot
approximately 16km return with an elevation gain of about 700 by the washrooms at 1500. Contact John at 604-274-4117.
metres. Pack lunch, water, sunscreen, rain gear and wear good
hiking boots. Carpool at Franklin and Penticton in Vancouver Saturday, October 1
at 0700, or meet at 0930 at the Strawberry Flats parking area in Hike at Mount Baker
Manning Park. Contact Bill Kinkaid at email@example.com or Difficulty rating: C6
604-710-6329. The actual hike will be determined closer to the date - my plan is
to do the hike to Excelsior Ridge via Damfino Lakes, a moderately
Saturday, September 10 strenuous hike of about 10km return with an elevation gain of about
Birding at Coquitlam’s DeBoville Slough/Minnekhada 450 metres. This will depend on road conditions - if the road is
Regional Park not open there will be another hike in the area. Note that a valid
We will be on the hunt for fall migrants. Meet Larry Cowan in passport or Enhanced Driver’s Licence is required identification
the main parking area on Cedar Drive in Port Coquitlam at 0900. for border crossings; please check http://www.cbp.gov/xp/cgov/
Several vehicles will be positioned in the Minnekhada gravel travel for current border restrictions. Parking fees in effect.
parking lot off Quarrie Rd. for the return trip. Larry can be contacted Carpool at Franklin and Penticton in Vancouver at 0700, or meet
at 604-465-1402. at 0900 at the Glacier Ranger Station in Washington. Please make
sure to contact the leader beforehand, especially if meeting us in
Friday, September 23 Glacier. Pack lunch, water, sunscreen, rain gear and wear good
Port Moody Harbour Boat Tour #1 hiking boots. Contact Bill Kinkaid at firstname.lastname@example.org or
We have scheduled two Boat Tours in Port Moody Harbour: 604-710-6329.
September 23rd and 24th. Our captain and guide will be Dr. Rod
McVicar, educator and marine conservationist who will share his
incredible knowledge with us. For the 4 hour tour we will be using
a small uncovered craft with a capacity for 15 people. Its size will
allow us to get closer to the harbour seals, seabirds, etc.
10 Vancouver Naturalist June 2011
Conservation Issues Mitigation measures to be undertaken by the proponents have yet to
be finalized, but should certainly require a significant enhancement
of fish and bird habitat. Marpole residents and naturalists are also
Proposed Marina at Richmond Island hoping that public access will be provided to Richmond Island,
by June Ryder for example, a footpath along the south shoreline, so that local
residents can share the island with the boaters. Present plans do
Richmond Island lies in the North Arm of Fraser River about 0.5
include a pedestrian and bicycle pathway on the Vancouver shore,
km downstream from the Arthur Laing Bridge. The main river
which hopefully, will soon be linked to the public walkway beside
channel skirts the south side of the island, while Richmond Island
the nearby Translink “bus barn”.
Slough (RIS) (also know as Eburne Slough), lies on the north side.
This former backchannel is blocked at its upper (east) end by a Jurisdiction over the slough and island is complex, and involves the
causeway which links the island to the Vancouver shore, although cities of Richmond and Vancouver, the Province of British Columbia,
the island itself is part of the City of Richmond. and the federal government through Port Metro Vancouver (PMV),
which owns Richmond Island. As a federal agency, PMV is
Fraser River backchannels are valuable wildlife habitat; RIS is
responsible for conducting environmental assessments on port
one of the very few in the lower mainland that remain, at present,
lands. Currently, PMV is referring the development application
relatively undisturbed by urban or industrial development. Although
to other agencies, including Vancouver, Richmond, Fraser River
the RIS shoreline is mostly riprap (erosion control rock), there is
Estuary Management Program (FREMP) and First Nations. The
a strip of riparian vegetation (alder, cottonwood and blackberry)
proponents will host an Open House at an unspecified date.
along the edge of the island, and some narrow fringes of sedge
marsh along the water’s edge; extensive
mudflats are exposed at low tide. About 80% of
the RIS shoreline is rated as highly productive
fish habitat (red-coded). The slough is also a
rearing area for salmonids and supports over 30
other species of fish. White sturgeon have been
caught here in the past. Numerous waterbirds
winter in the slough (see article on page 12);
otter and beaver are present, and bald eagles
that nest nearby prey on birds and fish in the
Bastion Development and the Musqueam Indian
Band are proposing to build a commercial
marina for recreational vessels that would
occupy most of the island and slough. The
project would involve: deepening of the slough
by clamshell dredging to remove about 70,000
m3 of sediment, and barging the dredgate to
a dump site off Point Grey; construction of
moorage for almost 200 boats (non-residential,
mostly motor boats), which would occupy about
85% of the slough. Most of the island would
be occupied by under-cover boat storage for
over 200 vessels, buildings for marine trades, Two male Common Mergansers in Richmond Island Slough.
services, store, café, work areas, and at grade parking for more Photo by Mark Habdas
than 200 vehicles. Services would be provided from Vancouver.
Existing vegetation would remain along the margins of the island Finally, from a personal point of view, it seems totally inappropriate
(riparian zone). to me that an island in a river in the middle of a major metropolis
should be converted into a more or less private marina for well-
This proposal raises several environmental concerns, including heeled boaters, while local wildlife is displaced and habitat mostly
disturbance and loss of habitat for fish and wildlife. For many destroyed. The continuing loss of Fraser River backchannel habitat
years, the slough was bordered by industry (e.g., Borden Chemicals, to “development” of one kind or another is deplorable. When
Eburne Mill) that discharged chemical waste into the water. Toxins industry was removed from this site in the 1990s, many people
have probably been buried by more recent Fraser River sediments, expected Richmond Island would be transformed into some kind
and may still be present below the surface of the mud on the floor of pubic, outdoor amenity. The island and slough are still prime
of the slough; (only the top layer of sediment has been tested so candidates for preservation as a conservation-oriented public
far). Clamshell dredging would disturb the mud and release those park.
toxins into the river and ocean.
Vancouver Naturalist June 2011 11
The Birds of Richmond Island Slough
by June Ryder
In early November 2010, Terry Slack told me he was concerned small numbers, and Gadwall were found on about one-third of the
about a proposed marina in Richmond Island Slough (RIS) (see surveys. The dabbling ducks forage along the edges of the sedge
Conservation Column). He mentioned that the Slough was used marsh on rising and falling tides.
extensively by wildlife and suggested that a survey should be done
to document its use by waterbirds. RIS is just a short drive from Diving ducks are less numerous in RIS, but were commonly seen.
my home, so I decided that I could do some observations there in Bufflehead was found on most surveys, followed by Common
lieu of my daily walks in other local areas. This account presents Merganser (mostly males) on more than half of the surveys.
the results of these surveys. Bufflehead were never seen out of the water, but the mergansers
were often found roosting on floating logs in the company of
RIS is a backchannel of Fraser River North Arm, bounded to the Mallard, wigeon and Canada Geese. Six other species of diving
north by the Vancouver shoreline immediately east of Fraser River duck (2 scaup species, 2 goldeneye species, and Hooded and Red-
Park, and to the south by Richmond Island. The upstream end of the breasted Mergansers) were seen on less than one-third of surveys
Slough is blocked by a causeway, from which the old channel, about (Table 1).
100 m wide, extends westward for about 600 m to its confluence
with the North Arm. The Slough is flanked by old industrial areas A single Pied-billed Grebe was seen once: this is an uncommon
from which, in the past, several outfalls have discharged toxic species along the North Arm, Double-crested cormorant and Great
chemicals and sewage into the water. (It’s surprising that there are Blue Heron were also recorded (Editor’s note: A relatively new
any birds here at all!) The banks of the Slough are a riprap of large heronry has been established upstream on the east side of Richmond.
concrete blocks. A strip of sedge marsh a few metres wide flanks The adults could be the ones using the mouth of the arm.).
the riprap near the mouth of the Slough.
Killdeer was the most frequently observed shorebird, including a
The objective of this project was to determine the species and flock of 11 individuals on a mudflat at low tide; a few birds (on one
numbers of birds, primarily water-birds, using RIS. Altogether, occasion with a single dowitcher) were seen roosting on floating
19 surveys, each of about one hour, were carried out at irregular logs with the dabbling ducks and geese at high tide. Wilson’s Snipe
intervals between November 13 and March 28. Birds were counted was recorded on several surveys when I inadvertently flushed
(using binoculars and spotting scope) from observation points along individuals from the saltmarsh as I walked the riverside path.
the accessible (350m length) part of the Vancouver shoreline, from
which the downstream 60% of the slough is visible. At first, all One or two Bald Eagles (a pair) were seen or heard on about half
surveys were carried out at relatively high tide because no low water of the surveys. Terry Slack believes the eagles have a nest in a tall
occurred during daylight. As daylight lengthened, some surveys conifer near the junction of Angus Drive and SW Marine Drive
were completed at lower tide levels, but these are disproportionately but this could not be confirmed. Cooper’s Hawk was seen twice,
few. The relation between tide level and birds (species and numbers) on both occasions (probably the same individual) perching in a
present in the slough has not been determined yet. For the first two large isolated cottonwood near the foot of Bentley Street. A single
months, much of the slough was occupied by log booms, and these Red-tailed Hawk (adult) was seen on 3 surveys, and two red-tails
may have blocked views of some of the water birds. Fewer booms (one adult, one immature) on one survey. One Northern Shrike
were noted in mid-January, and all had gone by February 18. and one Belted Kingfisher were each seen once, perching in trees
overhanging the Slough.
In total, 28 species of water-dependent birds and raptors were Richmond Island Slough appears to be well-used by wintering
recorded: 16 species of waterfowl, 3 shorebirds, 2 gulls, 4 raptors waterfowl, with up to at least 238 individuals of various species
and kingfisher. A summary of results is provided in Table 1. Full being present at any one time (i.e., counted on one survey). Bird
results are currently being entered into E-Bird (the online avian numbers and species varied from survey to survey, probably in
database). relation to tide level, prevailing weather conditions (especially
wind strength and direction) and recent disturbance by humans,
Dabbling ducks are the most common waterfowl in RIS. American including movement of tugs and log booms, dogs and people
Wigeon, the most abundant species, was recorded on all but one walking the footpath (and dogs running out onto the sedge marsh),
of the surveys. The wigeon flock, which often included one or and hunting raptors. The significance of this area to birds at other
two Eurasian Wigeon, was observed in flight over the North times of year, e.g., to migrating shorebirds and summer waterfowl,
Arm of Fraser River on several occasions, and may alternate remains unknown.
between RIS and the backchannel at Woods Island Marsh (Sea
Island Conservation Area1), depending on conditions such as
wind direction. Green-winged Teal is also usually present in the
Slough, Mallard were seen on most surveys although in relatively
1 A flock of comparable size has been commonly
observed in the backchannel at Woods Island Marsh over the
past 8 years (SICA Bird Survey, Nature Vancouver).
12 Vancouver Naturalist June 2011
Table 1: Birds at Richmond Is. Slough,
November 2010 - March 2011: Summary
# OF % surveys MAX.
SURVEYS on which AVERAGE NO.
SPECIES SEEN this species NO. OF OF
(max.= 19) was seen BIRDS BIRDS
Canada Goose 13 68 11 45
5251 Oak St. Vancouver, B.C. V6M 4H1
Gadwall 6 32 6 10 www.vandusengarden.org
Wigeon 10 53 1 2
Art & Nature Summer Camp
Spaces are still available in the following
Wigeon 18 95 65 163
camps - for more information visit the
Mallard 15 79 13 22
Green-winged Children & Families section of our website
Teal 10 53 28 100 at www.vandusengarden.org or call
Greater Scaup 2 11 2 2
Lesser Scaup 6 32 2 2 Nature Explorers
Scaup sp. 1 5 1 1 Ages 5-7.... July 4-8
Bufflehead 17 89 7 28 Ages 7-9....July 11-15
Goldeneye 6 32 2 3 Art in the Garden
Ages 7-9....July 25-29
Goldeneye 1 5 7 7
Merganser 2 11 2 2 Bugs, Slugs & Thugs
Common Ages 7-9....Aug 8-12
Merganser 12 63 6 15
Red-breasted Eco CityKids
Merganser 1 5 2 2 Ages 5-7.....Aug 15–19
Pied-billed Ages 7-9.....Aug 22-26
Grebe 1 5 1 1
crested HSBC VanDusen Family Programs
Cormorant 6 32 1 2
Great Blue Programs run 90 minutes at 10:30 a.m OR
Heron 3 16 1 1 1:30 p.m. Cost is $10 for member families,
$20 for non-members. Call 604-718-5898
Killdeer 6 32 3 11
for more information.
Dowitcher sp. 1 5 1 1
Snipe 3 16 3 4 Our Feathered Friends - Saturday July 16
Mew Gull 1 5 16 16 Learn all about the birds that make
Glaucous- VanDusen their home.
winged Gull 16 84 5 6
Bald Eagle 9 47 2 2 From Flowers to Food - Saturday Aug. 20
Discover how flowers become food as we
Hawk 2 11 1 1
Red-tailed visit VanDusen’s beehives and Heirloom
Hawk 4 21 1 2 Veggie Garden.
Shrike 1 5 1 1
Vancouver Naturalist June 2011 13
SUNDAY, JULY 10, 2011
at Lighthouse Park in West Vancouver
Nature Vancouver is hosting a summer picnic at Lighthouse
Park, a federally owned park leased to the Municipality of West
Vancouver. It is approximately 40 minutes from downtown
Vancouver by public transportation and 20 minutes by car.
Lighthouse Park marks the point where Burrard Inlet meets
Howe Sound. It is an example of the transition from the dry
Coastal Douglas-fir Zone to the wetter Coastal Western Hemlock
Zone. The park has the largest Douglas-fir trees in Greater
Vancouver, and has the largest uncut, coastal-elevation trees
in the Lower Mainland. It has spectacular views of the water,
Stanley Park and the city to the east, Bowen Island and the Strait
of Georgia to the west.
Where to meet: Phyl Munday Hut approximately 10 minutes
from the parking lot (map at info board at entrance to the park).
How to get there: The park is serviced by public transportation.
Visit the following webpage for driving and transit directions;
(Transit directions should be verified by contacting Translink.
Also refer to Nature Vancouver’s book, Parks and Nature Places
Around Vancouver. There is parking just inside the entrance to
the park. Access is from Marine Drive via Beacon Lane.
Time: Trail walks start at 10:00am. Picnic is at noon 12:00pm
to 2:00pm. Members can mingle at the Hut until 3:00pm.
Afternoon trail walks start after 2:00pm.
Elevation: The trails are all fairly easy with only a few having a
short hill to ascend or descend. Trails can be muddy, and rocky
areas and roots are slippery due to the damp microclimate. Wear
appropriate walking shoes.
The picnic: Takes place at the Phyl Munday Hut between
12:00pm and 2:00pm. The hut will provide shelter for us from
any inclement weather and function as an outpost (starting point)
for our scheduled walks. It has a kitchen but please bring your
own implements. Nature Vancouver will provide beverages and
fruit plates. Please bring finger food to share with other members
and your mug/plate, if you can. Bring your enthusiasm. Come
for the walks and the picnic, or, just come for the picnic and a
chance to socialize with fellow nature enthusiasts. Join us! Rain
or shine! Everyone is Welcome!
Guided Walks: Several of our members will be leading nature
walks and talking about the western red cedar and Douglas-fir
old growth trees, forest ecology, bird life, intertidal/marine life,
coastal bluff ecology, geology, and the invasive plant removal
and native plant restoration programme. The walks are scheduled
to take place before and after the picnic.
For more info, ideas you would like to share, ways you can help
out, finger food you can bring, and if you will be attending,
please contact Nellie at email@example.com. By contacting us
we can plan accordingly. Keep checking the Nature Vancouver
website, as more details will follow.
14 Vancouver Naturalist June 2011
YOUNG NATURALISTS’ CLUB of British Columbia
President: Daphne Solecki Executive Director: Kristine Webber
YNC Vancouver Co-ordinator: Eva Nagy firstname.lastname@example.org 604-929-4286
YNC Vancouver Trip Report the microscopes, which is always a very special experience.
by Eva Nagy Judy finished our day by distributing a beautiful insect booklet
and Heather gave us worm shaped candies for the road, a very
At one time there were more than 50 wild salmon and sea-run thoughtful gesture.
trout spawning streams at the present site of Vancouver. One
by one most of these were buried beneath pavement, landfill or My sincere thanks go to the leaders who helped to develop the
developments. Amazingly MUSQUEAM CREAK survived knowledge of our budding naturalists, by donating their time and
and in March the Young Naturalists had an opportunity to learn expertise, and providing great programs.
from Terry Point, one of the Musqueam people, how this was
achieved. Last year a new flood-gate was installed and the
salinity of the water is now carefully maintained to suit the need
YNC EXPLORER DAYS
of juvenile salmon. Terry also talked about the life cycle of the For upcoming trips, please visit our website
salmon and the type of habitat they need to survive. First we
visited the estuary, then the ‘nursery’ higher up on the creek
YOUNG NATURALISTS’ CLUB of British Columbia
where the juvenile Coho salmon do most of their growing up.
is for young people aged 5 to 14. A one-year individual or family
This is the area where the adult salmon spawn after they return
membership is $25. Family memberships receive one copy of
from their long ocean voyage. It was a rainy morning, but the
NatureWILD magazine, four times a year and a membership
sun came out shortly after our walk started and we had a most
pack for each child of 5 and up. For more information go to
pleasant afternoon walking around the park and learning from
Terry. We even learned about some of the plants the Musqueam www.ync.ca
people used for traditional and medicinal purposes which really
fascinated the children.
THE BIZARRE LIFE OF BARNACLES was the title of our
outing at Jericho Sailing Centre with Sheila Byers in April. As
usual she provided a most interesting program, first an exciting
overview of the life of one of Charles Darwin’s favourite marine
organisms – the barnacle. From goose Barnacles to acorn
Barnacles to parasitic barnacles, we discovered the interesting
natural history, life cycle and ecology of these curious animals.
Such odd names, odd shapes and such peculiar behaviour! To
appreciate their structure Sheila and her assistants helped us
create some original artwork to mimic the shape of the common
acorn barnacle. We had lots of fun folding the colourful paper
into weird shapes that represented barnacles. After the indoor
program, we moved from the classroom down to the wooden
Crab pier at Jericho beach and explored the live barnacles and
other small creatures living in the water and the nearby rocky
outcrop. It was a very interesting day.
In May we learned about CATERPILLARS from PhD candidate
Heather Kharuba and Dr. Judy Myers of UBC. It was a rainy
morning and not too many members turned up, but those
who came had a great time learning about the life cycle and
adaptations of tent caterpillars. Many caterpillars resemble the
plants which they feed on or may even have parts that mimic
plant parts such as thorns. After a short fieldtrip, we moved into
the greenhouses of UBC where Judy and Heather provided us
with several interesting games of learning about the needs of
caterpillars and the type and strength of leaves they feed on.
We were also shown several different types of larvae under
Vancouver Naturalist June 2011 15
Canadian Publications Mail
Sales Agreement 40038882
Published quarterly by Nature Vancouver
P.O. Box 3021, Vancouver, BC V6B 3X5
Nature Vancouver Membership Information
Founded in 1918 by Professor BC Nature also provides An annual week-long summer For more information please
John Davidson, Nature third-party liability insurance camp is organized in various contact:
Vancouver is a not-for-profit for members who participate alpine wilderness areas Jeremy McCall
charitable society, registered in field trips organized by different parts of BC, usually 604-876-7694 or
under the BC Societies Act. Nature Vancouver, BC Nature in alpine wilderness. Judy Sullivan
All donations to the Society or other member clubs. 604-983-2026.
other than membership The Conservation
Membership in Nature Nature Vancouver include conservation initiatives in Nature Vancouver does not
Vancouver is open to all. weekly field trips, and Metro Vancouver area. share personal information
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so members of Nature topics. and Vancouver Naturalist, used solely for the purpose
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of BC Nature and receive Workshops on bird are included with the to members or for the
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16 Vancouver Naturalist June 2011 Printed by Infigo, Richmond, BC