Results 71 to 80 of about 47,339 (326)

The costs of extra‐pair behaviours in birds

Biological Reviews, EarlyView.
ABSTRACT Extra‐pair behaviours – reproductive behaviours, including those related to copulation and paternity of offspring, amongst animals outside of a social pair bond – have long intrigued behavioural ecologists, particularly from the female animal's perspective.
Jørgen S. Søraker, Jamie Dunning
wiley   +1 more source

Orchard netting impacts on biodiversity leading to cascading effects at the ecosystem level

Biological Reviews, EarlyView.
ABSTRACT Agriculture must ensure food production without further compromising the ecosystem functions upon which it depends. Agricultural practices should therefore avoid harming farmland biodiversity, especially of taxa that supply the key ecosystem services (e.g.
Corrado Alessandrini, Karan Sethi, Emanuela Granata, Ekaterina Mogilnaia, Valeria Vitangeli, Giovanni Zanfei, Chiara Fedrigotti, Paolo Biella, Dino Scaravelli, Luigi Marchesi, Péter Batáry, Diego Rubolini, Paolo Pedrini, Mattia Brambilla   +13 more
wiley   +1 more source

The ‘seet’ danger call: an active nest warning in superb fairy-wrens

Royal Society Open Science
Alarm calls are a common, widely studied antipredator behaviour, with species producing different call types that can have distinct functions. Here, we describe a new type of alarm call in the superb fairy-wren (Malurus cyaneus), the ‘seet’ danger call ...
Lauren K. Common, Alper Yelimlieş, Diane Colombelli-Négrel, Victoria I. Austin, Sonia Kleindorfer   +4 more
doaj   +1 more source

Fluctuating asymmetry and environmental stress : understanding the role of trait history [PDF]

, 2013
While fluctuating asymmetry (FA; small, random deviations from perfect symmetry in bilaterally symmetrical traits) is widely regarded as a proxy for environmental and genetic stress effects, empirical associations between FA and stress are often weak or ...
Alcantara-Exposito, Angelica, De Coster, Greet, Lens, Luc, Malaki, Phillista, Matheve, Hans, Muchane, Muchai, Van Dongen, Stefan   +6 more
core   +2 more sources

Spatial distribution of acoustic traits in bird assemblages along regional bioclimatic gradients

Ecography, EarlyView.
Environmental variation shapes acoustic interactions among birds, creating spatial structures in the sonic signature of local species assemblages. Exploring these patterns at regional scales can reveal processes that segregate acoustic strategies along environmental gradients.
Michela Busana, Frédéric Sèbe, Luc Barbaro, Jonathan Carruthers‐ Jones, Solène Croci, Alice Eldridge, Almo Farina, Amandine Gasc, Charlène Gemard, Sylvain Haupert, Sandra Müller, Jean‐Yves Barnagaud   +11 more
wiley   +1 more source

Fat scoring in four sparrow species as an estimation of body condition: a validation study

Journal of Field Ornithology, 2022
In avian biology, body condition has been positively correlated with survivability, reproduction, migration, and habitat quality. A common method of assessing avian body condition, which typically refers to measures of energy stores, is a qualitative ...
Elizabeth S. Wenker, Erin L. Kendrick, Mike Maslanka, Michael L. Power   +3 more
doaj  

A comparative study of the function of heterospecific vocal mimicry in European passerines [PDF]

, 2007
Although heterospecific vocal imitation is well documented in passerines, the evolutionary correlates of this phenomenon are poorly known. Here, we studied interspecific variation in vocal mimicry in a comparative study of 241 European songbirds.
Anders Pape Møller, Avilés, Badyaev, Baylis, Bell, BioStat, Blondel, Burfield, Chu, Cibois, Cohen, Coleman, Cramp, Cucco, Denitza Zaprianova Pavlova, Dobkin, Dowsett-Lemaire, Ferguson, Forstmeier, Freckleton, Friedenberg, Galeotti, Garamszegi, Garamszegi, Garamszegi, Garamszegi, Garamszegi, Garamszegi, Garamszegi, Gil, Glutz von Blotzheim, Goodale, Gray, Greenlaw, Griffith, Hamao, Hartshorne, Hausberger, Hindmarsh, Hindmarsh, Hindmarsh, Iwaniuk, Jesús Miguel Avilés, Kipper, Lefebvre, Lemaire, László Zsolt Garamszegi, Marcel Eens, Martins, McCarthy, Mlíkovsky, Moran, Mullarney, Møller, Møller, Møller, Møller, Nakagawa, Nowicki, Pagel, Panov, Paradis, Randler, Read, Robinson, Sheldon, Sibley, Soler, Spottiswoode, Stattersfield, Svensson, Witherby, Zollinger   +72 more
core   +1 more source

Migration speed, timing, and long‐term shifts in age structure in North American passerines during fall migration

Ecography, EarlyView.
Migration is challenging for birds, especially juveniles, who experience high mortality rates during migration. The challenge is exacerbated in the Anthropocene, contributing to widespread population declines. Conservation efforts focused on increasing juvenile survival could bolster population recovery.
Dylan M. Osterhaus, Martha J. Desmond, Timothy F. Wright   +2 more
wiley   +1 more source

Adult snow bunting survival and population change from decades of monitoring effort in Iceland

Arctic Science
Snow buntings (Plectrophenax nivalis, Salomonsen, 1931) are widespread Arctic passerines, yet population trends and demographic parameters are largely unknown across their range.
S. Thorstensen, A. Petersen, M.L. Mallory, G.J. Robertson, A.M. Calvert, S.E. Gutowsky   +5 more
doaj   +1 more source

Relative importance of deterministic and stochastic processes for beta diversity of bird assemblages in Yunnan, China

Ecosphere, 2021
Evaluating the relative importance of deterministic and stochastic processes underlying taxonomic and functional beta diversity is crucial in community ecology, because it can reveal the dominant processes of community assembly.
Xuelian He, Calum Brown, Luxiang Lin
doaj   +1 more source