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Service Description: As stated in the HAF about mid-scale spatial extents “Second-order habitat descriptions are linked to bird dispersal capabilities in population and subpopulation areas” (page 11, Stiver et al. 2015). A mid-scale boundary is not intended to represent a (sub)population boundary; rather, it provides a spatial extent that is appropriate for assessing habitat characteristics that may influence second-order habitat selection, such as patch size and connectivity (see Table 2 in the HAF TR). The scale at which that occurs is driven by the dispersal distances/behavior of the birds in the (sub)population. A mid-scale boundary may include only part of or an entire (sub)population depending on the size of the population in the area of interest. Likewise, the mid-scale boundary may need to extend beyond a (sub)population boundary to adequately assess indicators of second-order habitat selection. The extent of the boundary is more important than the boundary line itself. The mid-scale boundary should encompass the fine-scale boundaries and the site-scale assessment areas. Mid-scale boundaries are required to calculate and examine mid-scale habitat indicators as defined in the HAF, such as habitat availability, patch size and number, patch connectivity, and density of anthropogenic disturbance within patches. The boundary provides an ecologically-driven geographic extent at which these metrics will be measured.

Map Name: BLM ID Sage Grouse HAF Mid Scale Areas

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Description: As stated in the HAF about mid-scale spatial extents “Second-order habitat descriptions are linked to bird dispersal capabilities in population and subpopulation areas” (page 11, Stiver et al. 2015). A mid-scale boundary is not intended to represent a (sub)population boundary; rather, it provides a spatial extent that is appropriate for assessing habitat characteristics that may influence second-order habitat selection, such as patch size and connectivity (see Table 2 in the HAF TR). The scale at which that occurs is driven by the dispersal distances/behavior of the birds in the (sub)population. A mid-scale boundary may include only part of or an entire (sub)population depending on the size of the population in the area of interest. Likewise, the mid-scale boundary may need to extend beyond a (sub)population boundary to adequately assess indicators of second-order habitat selection. The extent of the boundary is more important than the boundary line itself. The mid-scale boundary should encompass the fine-scale boundaries and the site-scale assessment areas. Mid-scale boundaries are required to calculate and examine mid-scale habitat indicators as defined in the HAF, such as habitat availability, patch size and number, patch connectivity, and density of anthropogenic disturbance within patches. The boundary provides an ecologically-driven geographic extent at which these metrics will be measured.

Copyright Text: Bureau of Land Management and Idaho Department of Fish and Game

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Document Info:

Title: BLM ID Greater Sage-Grouse Mid-scale HAF Boundaries poly
Author:
Comments: As stated in the HAF about mid-scale spatial extents “Second-order habitat descriptions are linked to bird dispersal capabilities in population and subpopulation areas” (page 11, Stiver et al. 2015). A mid-scale boundary is not intended to represent a (sub)population boundary; rather, it provides a spatial extent that is appropriate for assessing habitat characteristics that may influence second-order habitat selection, such as patch size and connectivity (see Table 2 in the HAF TR). The scale at which that occurs is driven by the dispersal distances/behavior of the birds in the (sub)population. A mid-scale boundary may include only part of or an entire (sub)population depending on the size of the population in the area of interest. Likewise, the mid-scale boundary may need to extend beyond a (sub)population boundary to adequately assess indicators of second-order habitat selection. The extent of the boundary is more important than the boundary line itself. The mid-scale boundary should encompass the fine-scale boundaries and the site-scale assessment areas. Mid-scale boundaries are required to calculate and examine mid-scale habitat indicators as defined in the HAF, such as habitat availability, patch size and number, patch connectivity, and density of anthropogenic disturbance within patches. The boundary provides an ecologically-driven geographic extent at which these metrics will be measured.
Subject: These boundaries are used to conduct mid-scale (2nd order) habitat assessments according to the Sage-Grouse Habitat Assessment Framework (HAF) (Stiver et al. 2015). These data are current as of May 19, 2019.
Category:
Keywords: biota,Bureau of Land Management,Caribou-Targhee,Centrocercus urophasianus,Department of the Interior,GRSG,Habitat Assessment Framework,Idaho,Nevada,Oregon,Sensitive Species,Western States,Wildlife,Wyoming
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