David Zaks 42003 Management Potential of Habitat for the Karner

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David Zaks 42003 Management Potential of Habitat for the Karner Powered By Docstoc
					                                                                                                                                                                                                                                                                                                      Weighting Scheme                                                 • Relative weights were assigned to each of the
                                                                                                                                                                                                                                                                              Habitat Management                Layer Value           Layer Weight
                                                                                                                                                                                                                                                                              Stewardship                                      9                 0.214                 layers based on their importance for habitat
The Karner blue (Lycaeides melissa samuelis) is a State Threatened and Federally Endangered                                                                                                                                                                                   Indicator Species
                                                                                                                                                                                                                                                                              200m Buffer
                                                                                                                                                                                                                                                                                                                                                 0.238                 management
                                                                                                                                                                                                                                                                              1600m Buffer                                     4                 0.095

species in Michigan. Work is being done to study and save this butterfly as it is considered an                                                                                                                                                        GAP Classes            IFMAP 2000 Land Cover                            6                 0.143                 •The weighting scheme was set up so that the
                                                                                                                                        IFMAP Classes                                                LU 1800 Classes                                                          Landuse Circa 1800                               8                 0.190

                                                                                                                                            Herbacious                                                                                                    Private             Total-->                                        42                                       highest possible value a cell could have was 1
“indicator species,” and therefore is used to gauge ecosystem health. There are twelve counties                                                                                                          Pine Barrens
                                                                                                                                            Open Land                                                                                                     State Parks/ Rec,   Stewardship
                                                                                                                                                                                                                                                                              State Game Area
                                                                                                                                                                                                                                                                                                                Attribute Value
                                                                                                                                                                                                                                                                                                                                      Attribute Weight Cell Weight
                                                                                                                                                                                                                                                                                                                                                  1.000        0.214
                                                                                                                                                                                                                                                                                                                                                                       • Those values were summed, then divided each
                                                                                                                                            Oak Types                                                    Mixed Oak                                        State Owned         National Forest                                     3               1.000        0.214   layer value by the total value to get the layer weight
in Michigan that have historically supported Karner blue populations but their habitat and                                                                                                               Savanna                                          Nat. Forest,        The Nature Conservancy                              3               1.000        0.214
                                                                                                                                             Pine / Oak Mix                                              Black Oak                                        State Game
                                                                                                                                                                                                                                                                              State Parks and Recreation Area
                                                                                                                                                                                                                                                                              State of Michigan
                                                                                                                                                                                                                                                                                                                                                                       • Some layers had multiple attributes that also had
population numbers are at risk with only small isolated sites remaining. The potential for                                                   Upland Shrub                                                Barrens                                          Consumers           Consumers Energy                                    2               0.667        0.143
                                                                                                                                                                                                                                                                                                                                                                       to be weighted
                                                                                                                                                                                                                                                          Energy              All Other Land (private)                            1               0.333        0.071

identifying locations can be explored by evaluating factors that sustain the Karner blue and using                                                                                                                                                                            IFMAP 2000 Land Cover            Attribute Value Attribute Weight Cell Weight
                                                                                                                                                                                                                                                                                                                                                                       • Each of the attributes was assigned an attribute
                                                                                                                                                                                                                                                                              Upland Shrub / Low Density Trees
                                                                                                                                                                                                                                                                              Herbaceous Openland
these factors to predict additional habitat. The model being worked on is intended to help locate                                                                                                                                                                             Oak Association                                 2            0.500        0.071
                                                                                                                                                                                                                                                                                                                                                                       • All of the attribute values were divided by the
                                                                                                                                                                                                                                                                              Upland Mixed Forest                             1            0.250        0.036

existing undocumented populations as well as identify reintroduction sites. GIS information in                                                                                                                                                                                Landuse Circa 1800                Attribute Value       Attribute Weight Cell Weight
                                                                                                                                                                                                                                                                                                                                                                       highest ranking value in that layer to determine the
                                                                                                                                                                                                                                                                              Pine Barrens
                                                                                                                                                                                                                                                                              Oak Barrens
                                                                                                                                                                                                                                                                                                                                                                       attribute weight
the areas of land use, land ownership, soil composition, current Karner blue locations and other                                                                                                                                                                              White Pine, White Oak                               2               0.667        0.127
                                                                                                                                                                                                                                                                                                                                                                       • The cell weight was determined by multiplying the
                                                                                                                                                                                                                                                                              Oak Opening                                         2               0.667        0.127

indicator species are just a few of the potential layers that are being used to identify target
                                                                                                                                                                                                                                                                              Oak/Pine Barrens                                    1               0.333        0.063
                                                                                                                                                                                                                                                                                                                                                                       attribute weight by the layer weight
                                                                                                                                                                                                                                                                              Indicator Species
                                                                                                                                                                                                                                                                              Persius Duskywing
                                                                                                                                                                                                                                                                                                                Cell Weight
                                                                                                                                                                                                                                                                                                                                                                       • The layers whose attributes had equal weights
locations. Work will then be done in the field to investigate these sites and possibly improve                                                                                                                                                                                Frosted Elfin                               0.119
                                                                                                                                                                                                                                                                                                                                                                       (indicator species and buffers) were simply
                                                                                                                                                                                                                                                                              Dry Sand Prairie                            0.119

current conditions in an effort to save this butterfly. The model is only a portion of the work being                                                                                                                                                                         200m Buffer                       Cell Weight
                                                                                                                                                                                                                                                                                                                                                                       assigned the layer weight as the cell weight
                                                                                                                                                                                                                                                                              1600m Buffer                      Cell Weight
done but by narrowing down the search, time and energy can be focused and quality results can                                                                                                                                                                                                                             0.095

                                                                                                                                                              KB Buffers                                                    Species                                           • All of the GIS work in this project was done                                                                   Data Flow Diagram
be obtained.
                                                                                                                                                                                                                                 Frosted Elfin,
                                                                                                                                                                                                                                                                              using ESRI’s ArcGIS Desktop (ArcMap,                                                       *Circa 1800                  Current KB                      Indicator
                                                                                                                                                                  Current Locations                                                                                                                                                                                     *IFMAP 2000                    locations                       Species
                                                                                                                                                                                                                                 Persius Duskywing,                           ArcCatalog and ArcTolbox) and the ArcGIS                                                  *Stewardship
                                                                                                                                                                  200m Buffers                                                   or Dry Sand Prairie
                                                                                                                                                                                                                                                                              Spatial Analyst extension                                                                                               Clipped to
                                                                                                                                                                  1600m Buffers                                                                                               • All of the layers were Clipped to the                                                   Clipped to                    Muskegon
                                                                                                                                                                                                                                                                              boundary of Muskegon County, Re-projected                                                                                                               Clipped to
                                                                                                                                                                                                                                                                                                                                                                       Reprojected to                  Reprojected to UTM
                                                                                                                                                                                                                                                                              to the UTM coordinate system, assigned                                                        UTM                                                       Muskegon
                                                                                                                                                                                                                                                                              weights using the reclassify command in                                                                                Buffer locations
                                                                                                                                                                                                                                                                                                                                                                                                                                     Reprojected to
                                                                                                                                                                                                                                                                                                                                                                        Selected out classes          to 200 meters
                                                                                                                                                                                                                                                                              Spatial Analyst                                                                              to be used in                                                  UTM
                                                                                                                                                                                                                                                                              • Once the layers were in a proper state, they                                                 the model                Buffer Locations
                                                                                                                                                                                                                                                                                                                                                                                                      to 1600 meters                 Rasterized data
                                                                                                                                                                                                                                                                              were added together using the raster
                                                                                                                                                                                                                                                                                                                                                                        Assigned weights
                                                                                                                                                                                                                                                                              calculator in Spatial Analyst                                                                                           Assigned weights               Assigned weights
                                                                                                                                                                                                                                                                              • The resulting layer was reclassified into
                                                                                                                                                                                                                                                                              7 classes using the Jenks natural breaks                                                    Add all layers        Clip out current
                                                                                                                                                                                                                                                                                                                                                                                                                                        Final locations
                                                                                                                                                                                                                                                                                                                                                                            together              KB locations                             identified

                                                                                                        Graphical Representation of                                                                                      Management Potential of Habitat for
                                                                                                               Map Algebra                                                                                                   the Karner Blue Butterfly

                                                                                                                                                                                                                                Very Good
• The destruction or degradation of the Karner Blue butterfly’s habitat has caused the species to                                                                                                                                                                              • This study provided valuable information about possible locations where habitat could be
be in peril                                                                                                                                                                                                                                                                    located, or land that could be managed for the Karner Blue
• The Michigan Natural Features Inventory is a key partner in helping to monitor the Karner Blue                                                                                                                                Moderate                                       • The results will be used in the upcoming field season at MNFI to search for new populations of
and help to ensure its continued existence                                                                                                                                                                                      Poor                                           the Karner Blue
                                                                                                                                                                                                                                                                               • Other layers exist that would have been useful to use in the model but it was not feasible
• The Habitat Conservation Plan which is being developed for this species calls for mapping the                                                                                                                                 Very Poor
                                                                                                                                                                                                                                                                               (NRCS soils                  data not available for all counties, Geology                                       resolution too course)
extent of the habitat and current occurrences of the butterfly
                                                                                                                                                                                                                                Unacceptable                                   • The majority of the results pointed out suitable habitat adjacent to existing populations, but
• Karner Blue Butterflies are thought to be an indicator species for ecosystem health                                                                                                                                                                                          some new possible sites were also identified
• Because of the large area and many different attributes associated with the butterfly and its                                                                                                                                                                                • This model was run on one county as a test case. It will eventually be expanded to the 12
habitat, using a geographic information system will help to manage the project in a timely and                                                                                                                                                                                 counties that historically supported Karner Blue populations
efficient manner                                                                                                                                                                                                                                                               • The expanded model will be flexible to accept modified weighting schemes for different

• The nature of the project, and the desired products require the use of a raster GIS                                                                                                                                                                                          management objectives, i.e. reintroduction
                                                                                                                                                                                                                                                                               • Connectivity between habitat patches will also be investigated
• The relevant information was extracted from each of the spatial layers, and were weighted
                                                                                                                                                                                                                                                                               • Further work and fine-tuning is planned on the model before the 12 county version is produced
according to their significance in determining the management potential for habitat
                                                                                                                                                                                                                                                                              Works cited:
                                                                                                                                                                                                                                                                              • Fettinger, Jennifer. Comprehensive Population and Habitat Surveys for the Karner Blue (Lycaeides
                                                                                                                                                                                                                                                                              melissa samuelis) in Michigan: Year One Progress Report. Michigan Natural Features Inventory.
                                                                                                                                                                                                                                                                              Report Number 2002-23
                                                                                                                                                                                                                                                                              • Rabe, M.L. 2001. Special animal abstract for Lycaeides melissa samuelis (Karner blue). Michigan
                                                                                                                                                                                                                                                                              Natural Features Inventory. Lansing, MI.6 pp.
                                                                                                                                                                                                                                                                              • Photo Credits: Jennifer Fettinger, Mary Rabe, USGS
                                                                                                                                                                                                                                                                              This project was done together with Becca Boehm, and support from the following people: Michael
                                                                                                                                                                                                                                                                              Fashoway, Jennifer Fettinger, Helen Enander, Marshall Strong, Ed Schools and Kelly Millenbah.

                                                                 A field of lupine (L.perennis)                Potential habitat on certain sides of                       Scattered potential habitat between two         Power line between two existing
                                                                                                                 current populations illustrated                                        populations                     populations identified as potential habitat                                                                                         David Zaks                  4/2003

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