Data maps of predicted raven density and areas of potential impact to nesting sage-grouse within sagebrush ecosystems of the North American Great Basin

Name: Data maps of predicted raven density and areas of potential impact to nesting sage-grouse within sagebrush ecosystems of the North American Great Basin
Creator: Idaho Department of Fish and Game; Idaho State University; United States Geological Survey; Nevada Natural Heritage Program; Oregon Department of Fish and Wildlife; Oregon State University; Nevada Department of Wildlife
Published: 2020-01-01 00:00:00
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U.S. Geological Survey2020-01-01 更新2026-04-23 收录

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These data represent predicted common raven (Corvus corax) density (ravens/square-km) derived from random forest models given field site unit-specific estimates of raven density that were obtained from hierarchical distance sampling models at 43 field site units within the Great Basin region, USA. Fifteen landscape-level predictors summarizing climate, vegetation, topography and anthropogenic footprint were used to predict average raven density at each unit. A raven density of greater than or equal to 0.40 ravens/square-km corresponds to below-average survival rates of sage-grouse (Centrocercus urophasianus) nests. We mapped areas which exceed this threshold within sage-grouse concentration areas to determine where ravens may be impacting sage-grouse populations.

提供机构：

Idaho Department of Fish and Game; Idaho State University; United States Geological Survey; Nevada Natural Heritage Program; Oregon Department of Fish and Wildlife; Oregon State University; Nevada Department of Wildlife

创建时间：

2020-01-01