Results 51 to 60 of about 7,295 (181)

Classifying avian drinking behaviour: ecological insights and implications in a changing world

Biological Reviews, EarlyView.
ABSTRACT Water is a fundamental currency of life, and its availability significantly influences animal behaviour, physiology and distributions. However, our knowledge around the dependence on water for drinking and the direct and indirect mechanisms driving related behaviours remains partial in the context of changing climates. Here, we review patterns
Shannon R. Conradie, Marc T. Freeman
wiley   +1 more source

Gene duplication and fragmentation in the zebra finch major histocompatibility complex

BMC Biology, 2010
Background Due to its high polymorphism and importance for disease resistance, the major histocompatibility complex (MHC) has been an important focus of many vertebrate genome projects. Avian MHC organization is of particular interest because the chicken
Burt David W, Kotkiewicz Holly, Godinez Ricardo, Westerdahl Helena, Völker Martin, Ekblom Robert, Balakrishnan Christopher N, Graves Tina, Griffin Darren K, Warren Wesley C, Edwards Scott V   +10 more
doaj   +1 more source

Maternal effects underlie ageing costs of growth in the zebra finch (Taeniopygia guttata). [PDF]

PLoS ONE, 2014
Maternal effects provide a mechanism to adapt offspring phenotype and optimize the mother's fitness to current environmental conditions. Transferring steroids to the yolk is one way mothers can translate environmental information into potential adaptive ...
Mathilde L Tissier, Tony D Williams, François Criscuolo   +2 more
doaj   +1 more source

Effects of Partner Workload and Increasing Environmental Temperature on Nestling Provisioning and Body Temperature in a Declining Aerial Insectivore

Journal of Experimental Zoology Part A: Ecological and Integrative Physiology, EarlyView.
ABSTRACT With climate change, birds will face increasing thermoregulatory demands, which may alter reproductive behaviors such as offspring provisioning. Experimental studies have shown that the provisioning capacity of female tree swallows (Tachycineta bicolor) is limited by their risk of overheating. Given that parental investment strategies may vary
Megan C. Heft, Bronwen Hennigar, Gary Burness   +2 more
wiley   +1 more source

Increased expression of aromatase after focal cerebral ischemia: Relevance to neuroprotection and functional recovery

Neuroprotection, EarlyView.
Abstract Aim Aromatase is the key enzyme in the biosynthesis of 17β‐estradiol, the most potent estrogen, which has pleiotropic neuroprotective properties. Aromatase levels increase in the brain after stroke, and its gene variants increase susceptibility to stroke. This study aims to determine whether aromatase overexpression improves stroke outcome and
Lindsay Gallagher, Anna F. Dominiczak, Luis M. Garcia‐Segura, Nobuhiro Harada, J. B. Hutchison, James M. Mullin, Delyth Graham, Peter O'Shaughnessy, Hilary Victoria O. Carswell   +8 more
wiley   +1 more source

Parental care and bird embryonic metabolism: A comparison between uniparentally incubating Silver‐throated Tits and biparentally incubating Black‐throated Tits

Functional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Studies have shown that organisms may adjust metabolic rates in response to thermal variability, highlighting metabolic plasticity as a key adaptive mechanism. Understanding the extent of metabolic plasticity of an organism is key to predicting its adaptation to climate
Qian Hu, Yue Wang, Hui Wang, Yu Wang, Xin Xia, Jiliang Xu, Jianqiang Li   +6 more
wiley   +1 more source

Maternal glucocorticoids have persistent effects on offspring social phenotype irrespective of opportunity for social buffering

Journal of Animal Ecology, EarlyView.
This study tests whether early‐life maternal association buffers offspring from the effects of prenatal stress in a facultatively social lizard. Despite clear effects of maternal glucocorticoids on growth and social behaviour, social associations did not mitigate these effects, revealing limits to social buffering in this species.
Kirsty J. MacLeod, Alix Bouffet‐Halle, Erik Wapstra, Tobias Uller, Geoffrey M. While   +4 more
wiley   +1 more source

Social information about others' affective states in a human‐altered world

Journal of Animal Ecology, EarlyView.
Faced with anthropogenic change, animals now encounter challenges different from their evolutionary past. To cope with such challenges, animals may use social information about others' affective states to guide their decisions. Considering affective states of wild animals could have important implications for animal welfare and wildlife conservation ...
Luca G. Hahn, Jordan McDowall, Margaux Vanhussel, Mike Mendl, Alex Thornton   +4 more
wiley   +1 more source

Analysis of CR1 Repeats in the Zebra Finch Genome [PDF]

Journal of Systemics, Cybernetics and Informatics, 2013
Most bird species have smaller genomes and fewer repeats than mammals. Chicken Repeat 1 (CR1) repeat is one of the most abundant families of repeats, ranging from ~133,000 to ~187,000 copies accounting for ~50 to ~80% of the interspersed repeats in the ...
George E. Liu, Yali Hou, Twain Brown
doaj  

Discrimination of natural acoustic variation in vocal signals

Scientific Reports, 2021
Studies of acoustic communication often focus on the categories and units of vocalizations, but subtle variation also occurs in how these signals are uttered.
Adam R. Fishbein, Nora H. Prior, Jane A. Brown, Gregory F. Ball, Robert J. Dooling   +4 more
doaj   +1 more source