Results 11 to 20 of about 680 (164)
Double Parasitism by Two Cuckoo Gentes in a Daurian Redstart Nest. [PDF]
Ecol EvolDouble parasitism is rare in forest‐breeding hosts of the common cuckoo, where females typically defend exclusive territories. We report a unique case in a Daurian redstart nest involving two different cuckoo gentes, despite one gens overwhelmingly dominating parasitism events in the population. This observation suggests that female cuckoos may be less
Zhang J +6 more
europepmc +2 more sources
Clutch Destruction by Common Cuckoos (<i>Cuculus canorus</i>) During the Laying Stage of Vinous-Throated Parrotbills (<i>Sinosuthora webbiana</i>): First Video Evidence. [PDF]
Ecol EvolWe present the first video‐documented evidence of clutch destruction by Common Cuckoos during the laying stage of Vinous‐throated Parrotbills. This behavior, observed across five cases, led to complete clutch loss and host desertion. Our findings expand the known timeline of brood parasite aggression and offer new insights into host–parasite ...
Lee Y, Jang W.
europepmc +2 more sources
Farming Behavior by the Large Hawk-Cuckoo Toward the Silver-Eared Mesia and Black-Streaked Scimitar Babbler. [PDF]
Ecol EvolSome parasitic birds may destroy unsuitable host nests through “Farming behavior” to induce re‐nesting, thereby creating new opportunities for parasitism. Despite its potential significance, this behavior has been documented in only a few brood‐parasitic species.
Pang F, Zhang K, Yuan Z, Liu J.
europepmc +2 more sources
Underestimated Fatalities of a Cryptic Avian Species of Conservation Concern at Wind Energy Facilities in California, USA. [PDF]
Ecol EvolBlackbirds killed at wind turbines in California, USA, are typically assumed to be common red‐winged blackbirds. In reality, a surprising number of them are endangered tri‐colored blackbirds. This finding has important implications for the way fatalities are managed at these wind facilities. ABSTRACT Accurate information underpins successful ecological
Katzner TE +3 more
europepmc +2 more sources
Constructing culture in cowbirds (Molothrus ater). [PDF]
Journal of Comparative Psychology, 2007 In past work, the authors produced divergent patterns of courtship and communication in juvenile male cowbirds (Molothrus ater) by providing them with different social experiences during their 1st year. Here the authors determined whether these different social patterns could be transmitted to new generations of juvenile males.
David J, White +4 more
openaire +2 more sources
Uncovering correlates of decline and critical refuges for a threatened terrestrial mammal. [PDF]
Conserv BiolAbstract 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 ...
Maitz NM +5 more
europepmc +2 more sources
Frontiers in Ecology and Evolution, 2022 Parental care can be costly to parents’ fitness. As such, abandonment of the current reproductive attempt may benefit potential future opportunities, maximising lifetime reproductive success.
Antoine V. Turcotte-van de Rydt +6 more
doaj +1 more source
The Influence of Grazing Systems on Bird Species Richness and Density in the Nebraska Sandhills
Diversity, 2023 Grazing is the de facto method of habitat management used in much of the Nebraska Sandhills. Ranchers use a variety of grazing systems, and our goal was to evaluate the effects of systems on grassland birds.
Silka L. F. Kempema +2 more
doaj +1 more source
Huitzil, 2016 Documentamos, por primera vez en el estado de Durango, un caso de leucismo parcial en un tordo macho cabeza café (Molothrus ater). Esta especie es considerada el parásito de cría más común de América del Norte, forma parte de la avifauna de zonas ...
Sandra Daniela Hernández Valdez +2 more
doaj +1 more source