Details

Autor(en) / Beteiligte

• Young, Austin Ray

Titel

Change in Bird Use of a Cold Desert Stopover Site Across Seventeen Years

Ort / Verlag

ProQuest Dissertations & Theses

Erscheinungsjahr

2024

Quelle

ProQuest Dissertations & Theses A&I

Beschreibungen/Notizen

• Camas National Wildlife Refuge (NWR) occupies the Snake River Plain in southeastern Idaho, USA and includes riparian habitat augmented by shelterbelts. A baseline study conducted from 2005 - 2007 indicated that Camas was a regionally important stopover site for migrating passerine birds. Since then, regional climatic and water use changes have been of sufficient magnitude to cause the riparian habitat and shelterbelts to diminish. I investigated if Camas has continued to function as an important migratory passerine stopover site. From 2022 - 2023, I replicated the baseline study’s surveys and banding during spring and autumn migration to evaluate use by migrant passerines. I found continued heavy use by migrating passerine birds, but passerine biodiversity, abundance, and stopover dynamics shifted during the 17-year period since initial sampling. These shifts likely reflect a combination of local habitat change at Camas and recent broad-scale changes in North American passerine bird populations.