Results 91 to 100 of about 15,406 (254)

Site‐Specific Impacts of Urbanisation on Annual Survival of a Forest Bird

Ecology and Evolution
Habitat changes associated with urbanization have major and complex effects on wildlife. In birds, urban populations often have lower reproductive success but are able to maintain similar or higher densities than non‐urban populations.
Boglárka Bukor, Brett K. Sandercock, Karl L. Evans, Ivett Pipoly, Krisztina Sándor, András Liker, Gábor Seress   +6 more
doaj   +1 more source

Spatial Patterns of Avian Stable Isotopes Reveal Ecological Impacts of Climate and Land‐Use Change

Integrative Zoology, EarlyView.
Increased feather δ15N values with pasture coverage reveal an elevated baseline δ15N in grazing landscapes, while broader isotopic niches in farmland habitats reflect agricultural expansion's significant influence on resource use patterns of the avian community.
Yaohong Jia, Chao Zhang, Xiaoyu Hu, Wei Wei, Yonggang Nie, Hong Zhou   +5 more
wiley   +1 more source

Water Use Behavior of Individual Birds: Ring Ouzels in an Arid High‐Mountain Ecosystem

Integrative Zoology, EarlyView.
Water is a limiting resource for birds in arid ecosystems. Individual birds differ strongly in how they use shared water sources, with drinking behavior increasing with temperature. Behavioral differences, hierarchy, and social context ultimately shape unequal access to water within the population. ABSTRACT Water availability strongly constrains animal
Tamara Burgos, Juan P. González‐Varo, Juan Carlos Illera, Manuel Nogales, Beatriz Rumeu   +4 more
wiley   +1 more source

Body frontal area in passerine birds [PDF]

, 2003
Projected body frontal area is used when estimating the parasite drag of bird flight. We investigated the relationship between projected frontal area and body mass among passerine birds, and compared it with an equation based on waterfowl and raptors ...
Hedenström, Anders, Rosén, Mikael
core   +1 more source

Early‐Life Telomere Length Negatively Covaries With Brood Size and Father Age, and Predicts Long‐Term Survival in Male Barn Swallows (Hirundo rustica)

Integrative Zoology, EarlyView.
In barn swallows, nestlings raised in larger broods or by older social fathers have shorter telomeres, and those with longer telomeres tend to live longer, suggesting that early‐life conditions may shape individual lifespan through telomere dynamics. ABSTRACT Parental decisions on breeding, such as brood size and timing of reproduction, influence the ...
Andrea Novelli, Manuela Caprioli, Roberto Ambrosini, Alessandra Costanzo, Diego Rubolini, Marco Parolini, Andrea Romano   +6 more
wiley   +1 more source

Characteristics of breeding passerine communities at Earlshallmuir and Tentsmuir, North-East Fife [PDF]

, 2012
The literature pertaining to a variety of methods for estimating the abundances of songbirds is reviewed, and the use of two of the main methods - mapping and transects - is described and discussed. The mapping method is found to be the most efficient
Dougall, Thomas William
core   +2 more sources

Song post exposure, song features, and predation risk [PDF]

, 2005
Male birds use song to attract mates and deter other males, but in doing so, they also attract the attention of predators and parasites. Such viability costs are inherent in reliable signals, potentially causing females to prefer mates that display from ...
J. T. Nielsen, A. P. Møller, L. Z. Garamszegi, Moller, A. P., Nielsen, J. T., Garamszegi, László Zsolt, M\uf8ller, A.P., Nielsen, J.T., Garamszegi, L.Z.   +8 more
core   +1 more source

Ecology and Brain Size Drive Feeding Innovations in Birds

Integrative Zoology, EarlyView.
Larger‐brained birds exhibit higher feeding innovation rates, but ecological factors shape different forms of innovation in distinct ways. Across 955 bird species, phylogenetic path analyses revealed that migration type and feeding strategy mediate the effects of brain size and climate on feeding innovations, illustrating how cognition and ecology ...
Yating Liu, Ying Jiang, Jiliang Xu, Wenbo Liao   +3 more
wiley   +1 more source

Female promiscuity and genetic diversity in passerine birds [PDF]

, 2014
This dissertation is about female promiscuity in passerine birds. By using comparative analytical approaches, I have tried to determine why there is such variation in the frequency of this behaviour. I have found that promiscuous species/populations have
Gohli, Jostein
core   +1 more source

Seasonal Difference of Gut Microbiota at a Stopover Site in Five Passerines of Different Migratory Behavior

Integrative Zoology, EarlyView.
Seasonal variation significantly reshaped gut microbiota composition in migratory passerine species, whereas the resident species Suthora webbiana showed no clear seasonal shift. Species with similar migratory behaviors exhibited consistent seasonal patterns in their core gut microbiota.
Jundong Duan, Amina Tufail, Xiaoping Wang, Tingbei Bo, Na Zhao, Yifan Yue, Sandi Willows‐Munro, Yanhua Qu, Jianshi Jin, Fumin Lei, Chenxi Jia, Gang Song   +11 more
wiley   +1 more source