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Road-Killed Wildlife Carcass Frequency by Mile of Idaho State Highway System Routes in the U.S. Northern Rockies (2008-2012)

Dates

Publication Date
Start Date
2008-01-01
End Date
2012-12-31

Summary

This layer represents 5-year relative counts of wildlife carcasses collected by Idaho Transportation Department (ITD) personnel (2008-2012) or reported by the general public (2012) on or adjacent to state highway system (major) routes. To obtain relative counts, the 5-year total counts per mile, which included all wildlife species observed, were divided by the maximum observed calue (98) to give a relative 0-1 risk score. Total counts, which include all wildlife species observed, along with carnivore counts, which include only black bears, grizzly bears, mountain lions, and wolves, are provided. Counts were derived by identifying the nearest mile marker to each carcass point location, then counting the frequency with which each mile [...]

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Attached Files

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USNR_ID_RelCarcassFreq.htm 27.92 KB
USNR_ID_RelCarcassFreq.txt 16.33 KB
USNR_ID_RelCarcassFreq.lyr 22.5 KB
Extension: USNR_ID_RelCarcassFreq_5YR.zip
USNR_ID_RelCarcassFreq_5YR.sd
Original Metadata
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Shapefile: USNR_ID_RelCarcassFreq.zip
USNR_ID_RelCarcassFreq.shp 92.27 KB
USNR_ID_RelCarcassFreq.dbf 632.8 KB
USNR_ID_RelCarcassFreq.shx 16.86 KB
USNR_ID_RelCarcassFreq.prj 425 Bytes
USNR_ID_RelCarcassFreq.shp.xml
Original FGDC Metadata

View
13.41 KB
USNR_ID_RelCarcassFreq.sbn 21.8 KB
USNR_ID_RelCarcassFreq.sbx 1.14 KB
USNR_ID_RelCarcassFreq.cpg 5 Bytes

Purpose

This layer is intended for use as an index of road risk presented to wildlife in general and to carnivores in particular. It can be combined with the equivalent layer for Montana, which is offered separately due to inconsistent reporting of carcasses between states. In this analysis, it was used in conjunction with an identification of intersections between major roads and connectivity flowlines in order to assess congruence between connectivity value and road risk to wildlife.
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Map

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ArcGIS Mapping Service

ScienceBase WMS

ScienceBase WFS

Communities

  • Great Northern Landscape Conservation Cooperative
  • LC MAP - Landscape Conservation Management and Analysis Portal

Tags

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