Results 71 to 80 of about 67,988 (235)

Intraspecific brood parasitism in two tit Parus species: occurrence and responses to experimental parasitism

, 1995
: In many bird species females parasitize the parental investment of other pairs by laying eggs in their nests. Such intraspecific brood parasitism is considered rare among altricial birds, but this may result from methodological difficulties in ...
Eens, Marcel, Pinxten, R., Pinxten, Rianne, Kempenaers, Bart, Kempenaers, B., Eens, M.   +5 more
core   +1 more source

Superb Fairy-wrens (Malurus cyaneus) increase vigilance near their nest with the perceived risk of brood parasitism [PDF]

, 2015
Brood parasites typically impose costs on their hosts, which select for host defenses. However, where defenses are costly, hosts can benefit by facultative expression of defenses in relation to the risk of parasitism.
Feeney, William E., Langmore, Naomi E.
core   +1 more source

Prolactin mediates behavioural rejection responses to avian brood parasitism

, 2021
International audienceAdaptations resulting from co-evolutionary interactions between avian brood parasites and their hosts have been extensively studied, yet the physiological mechanisms underlying antiparasitic host defences remain little known ...
Ibáñez-Álamo, Juan Diego, Soler, Manuel, Parenteau, Charline, Ruiz-Raya, Francisco, Chastel, Olivier   +4 more
core   +1 more source

Efficient Masked Autoencoder for Birdsong Representation with Applications on Wild Bird Species Classification

Integrative Zoology, EarlyView.
Research on mosquito feeding preferences and the malaria parasites they transmit is essential for understanding the interactions between hosts, vectors, and parasites. In this study, vertebrate hosts were identified in 72 mosquitoes. Most blood meals (58.7%) came from birds, representing 25 species, while 40.0% came from mammals (13 species), and 1.3 ...
Qin Zhang, Shipeng Hu, Hengrui Wang, Jizheng Yi, Guoxiong Zhou, Xiangyu Shen, Weixiong Peng, Zhishu Xiao, Aibin Chen   +8 more
wiley   +1 more source

Cognition and the brain of brood parasitic cowbirds

Integrative Zoology, 2019
AbstractCowbirds are brood parasites. Females lay their eggs in the nests of other species, which then incubate the cowbird eggs and raise the young cowbirds. Finding and returning to heterospecific nests presents cowbirds with several cognitive challenges.
David F, Sherry, Mélanie F, Guigueno
openaire   +3 more sources

Coevolution in action: disruptive selection on egg colour in an avian brood parasite and its host. [PDF]

PLoS ONE, 2010
Trait polymorphism can evolve as a consequence of frequency-dependent selection. Coevolutionary interactions between hosts and parasites may lead to selection on both to evolve extreme phenotypes deviating from the norm, through disruptive selection.Here,
Canchao Yang, Wei Liang, Yan Cai, Suhua Shi, Fugo Takasu, Anders P Møller, Anton Antonov, Frode Fossøy, Arne Moksnes, Eivin Røskaft, Bård G Stokke   +10 more
doaj   +1 more source

Offspring Defensive Investment Covaries With Brood Value in a Female Cobweb Spider

Integrative Zoology, EarlyView.
We performed a thorough field investigation on the web architectures of Campanicola campanulata to research its cobweb architecture variation under the condition of whether it carried egg sacs, in order to test the theory of its brood value. Our results demonstrate that retreat construction in female cobweb spiders is modulated by brood value.
Haixin Zhang, Jie Liu, Changchun Li, Lelei Wen, Lang Hu, Fan Zhang, Kai Wang, Shichang Zhang   +7 more
wiley   +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

The dual crisis: Climate change simultaneously drives pollinator decline and pest outbreaks

Agricultural and Forest Entomology, EarlyView.
Climate change acts as an asymmetric ecological filter, favouring r‐selected pest traits (rapid reproduction, generalism) while disadvantaging K‐selected pollinators. For every 1°C of warming, bee species richness declines ~25% since the 1990s, while pest‐induced crop losses increase by 10%–25%. A network‐centric approach integrating climate‐responsive
Diriba Fufa Serdo
wiley   +1 more source

Alternative mating strategies in Eurasian Reed Warblers: extra-pair paternity and egg dumping

The European Zoological Journal
Alternative mating strategies, involving mating outside a social pair bond, have been studied intensively during the last few decades. However, we are still far from understanding what factors affect their frequencies in wild bird populations.
L. Hałupka, H. Sztwiertnia, E. Klimczuk-Bereziuk, M. Borowiec, B. Leisler, B. Czyż   +5 more
doaj   +1 more source