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Filters: Categories: Project (X) > partyWithName: U.S. Fish and Wildlife Service, Legacy Region 6, Science Applications (X) > Types: Map Service (X) > partyWithName: Victoria Dreitz (X)

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Grassland birds have declined more rapidly than any other group of land birds in North America in the last 50 years, with populations of Spragues Pipit, Chestnut-collared and Thick-billed Longspur, and Bairds Sparrow having declined 65-94% during this period. Developing strategic conservation plans for grassland birds requires an understanding of their individual population ecology, along with their community dynamics amongst species. Few studies have focused on understanding how adult density during the breeding season relates to nesting performance (e.g., nest density and nest success) and how abiotic and biotic factors influence these individual demographics. This proposed work complements concurrent studies...
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Demographic vital rates differently impact population growth across species, and effective conservation takes advantage of this by targeting management towards the most limiting critical life stages anticipated to respond to management. Current conservation efforts for sagebrush obligate songbirds is inextricably linked to breeding habitats, yet the relative contribution of breeding ecology (e.g. nest success) to overall population declines remains unknown. Combining readily available data with cutting edge analytical tools can fill this missing piece of the conservation portfolio, while also identifying key knowledge gaps. Ultimately this project seeks to empower management with the scientific basis for a demographic...