Results 31 to 40 of about 570 (161)
On the Mating System of Brown-Headed Cowbirds
, 1982 (Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
Ankney, C Davison, Scott, D M
openaire +2 more sources
Comparison of capture and escape rates between different types of portable cowbird traps
Wildlife Society Bulletin, 2014 Control of brown‐headed cowbirds (Molothrus ater) is often advocated to reduce parasitism and improve nesting success of sensitive populations of passerine birds, but little information is available in the literature concerning the relative effectiveness
Mary Anne McLeod, Thomas J. Koronkiewicz
doaj +1 more source
Owens Valley nesting willow flycatcher under pressure
California Fish and Wildlife Journal, 2021 Willow flycatchers (Empidonax traillii; WIFL) nest along the Owens River and Horton Creek in the Owens Valley. Migrating WIFL visit these sites as well as many other tributaries to both the Owens River and Mono Lake.
Lacey Greene +2 more
doaj +1 more source
Marine Mammal Science, Volume 42, Issue 4, October 2026.ABSTRACT Biphonation—the simultaneous production of two independent fundamental frequencies within a single vocalization—is a prominent feature of killer whale calls, yet the factors influencing the presence and intensity of heterodyne frequencies, which arise from interactions between these fundamentals, remain poorly understood. We analyzed long‐term
Vera I. Fedorova +5 more
wiley +1 more source
Avian Conservation and Ecology, 2010 In recent decades, many early-succession songbird species have experienced severe and widespread declines, which often are related to habitat destruction. Field borders create additional or enhance existing early-succession habitat on farmland. However,
Jason D. Riddle, Christopher E. Moorman
doaj +1 more source
Effects of off‐highway vehicle activity on Arizona wildlife: a systematic literature review
The Journal of Wildlife Management, Volume 90, Issue 7, September 2026.The published literature indicates that off‐highway vehicles (OHVs) predominantly negatively affect native Arizona amphibians, mammals, and reptiles, while effects of OHVs on native Arizona birds are mostly unknown or neutral. Abstract Off‐highway vehicle (OHV) recreation has dramatically increased in Arizona, USA, prompting concerns about potential ...
Hayden K. Hutcherson +4 more
wiley +1 more source
Uncovering correlates of decline and critical refuges for a threatened terrestrial mammal
Conservation Biology, Volume 40, Issue 4, August 2026.Abstract Globally, the geographic ranges of numerous species are contracting. Identifying spatiotemporal patterns of threat impact can illuminate why species decline in some parts of their range but persist in others. We developed a correlative approach to identify species’ response thresholds and locate ecological refuge areas associated with ...
Natalya M. Maitz +5 more
wiley +1 more source
Use of alternate upland nesting habitat reduces brood parasitism in an endangered bird
Avian Conservation and EcologyThe Least Bell’s Vireo ( Vireo bellii pusillus ) is a federally endangered songbird restricted to Southern California, USA, and Baja California, Mexico. Historically abundant, it suffered a catastrophic population decline during the twentieth century due
Kevin B Clark, Kimberly Ferree
doaj +1 more source
Correlates of Egg Rejection in Hosts of the Brown-Headed Cowbird [PDF]
The Condor, 2004 AbstractWe conducted a comparative analysis of eight potential correlates of egg rejection in hosts of the parasitic Brown-headed Cowbird (Molothrus ater) to test the evolutionary equilibrium and evolutionary lag hypotheses as explanations for the acceptance of cowbird parasitism. The analyses generally supported evolutionary lag. Historic contact with
Brian D. Peer, Spencer G. Sealy
openaire +1 more source
Ecology and Evolution, Volume 16, Issue 7, July 2026.We investigated the diversity, prevalence, and abundance of chewing lice in 1403 individuals representing 20 migratory shorebird species from the families Charadriidae and Scolopacidae, identifying 26 louse species through microscopy and DNA barcoding.
Maciej Bartos +7 more
wiley +1 more source