Southwestern willow flycatcher surveys, demography, and ecology along the lower Colorado River and tributaries, 2007
McLeod M, Koronkiewicz TJ, Nichols SR, Brown BT, Carothers SW. 2008. Southwestern willow flycatcher surveys, demography, and ecology along the lower Colorado River and tributaries, 2007. Contract # 03-CS-30-0093, SWCA Project No. 6595-133. SWCA Environmental Consultants. Flagstaff, AZ.
The purpose of the 2007 study is to continue surveys, monitoring, and demographic and ecological studies of the Southwestern Willow Flycatcher in suitable and/or historical riparian and wetland habitats throughout the lower Colorado and Virgin River region. This project encompasses three types of studies: (1) presence/absence surveys, including site descriptions, at pre-selected sites along the lower Colorado and Virgin Rivers and tributaries, including the lower Grand Canyon and Bill Williams River; (2) intensive, long-term life history studies at four specific study areas (Pahranagat NWR, Mesquite, and Mormon Mesa, Nevada, and Topock Marsh, Arizona) to assess Southwestern Willow Flycatcher demographics and ecology, habitat selection, and the effects of Brown-headed Cowbird brood parasitism; and (3) monitoring ofmicroclimate, vegetation, and groundwater conditions of currently occupied Southwestern Willow Flycatcher habitat between Parker and Imperial Dams.
- Type
- Published Report
- Authors
- McLeod, Mary Anne; Koronkiewicz, Thomas; Nichols, Sarah; Brown, Bryan; Carothers, Steven
- Date of Issue
- 2008-03-01
- Publisher
- SWCA Environmental Consultants
- Units
- LAKE
- Keywords
- Absence (Biodiversity), Abundance (Biodiversity), Animal Studies, Aves (Birds), Distribution (Biodiversity), Empidonax Traillii (Willow flycatcher), Endangered Species, Fringillidae (Buntings Finches Grosbeaks Sparrows), Mesquite Nevada, Molothrus ater (Brown-headed Cowbird), Mormon Mesa Nevada, Muddy River Nevada, Pahranagat National Wildlife Refuge Nevada, Passeriformes (Perching Birds), Presence (Biodiversity), Taxa Links To References, Tyrannidae (Tyrant Flycatchers), Virgin River, Wildlife