Results 31 to 40 of about 5,511 (198)

Reproductive Strategies Change With Time in a Newly Founded Colony of Spotless Starlings (Sturnus unicolor)

Frontiers in Ecology and Evolution, 2021
Variation in avian reproductive strategies is often studied from a comparative perspective, since even closely-related taxa differ greatly in the degree of polygyny, extra-pair paternity (EPP) or intra-specific brood-parasitism.
Patricia Celis, Jeff A. Graves, Diego Gil   +2 more
doaj   +1 more source

Nestling Growth and Brood Reduction in the Southern Yellow-Billed Hornbill (<i>Tockus leucomelas</i>). [PDF]

Ecol Evol
In the southern yellow‐billed hornbill, Tockus leucomelas, we found first‐hatched nestlings had a higher growth rate and that growth rate was negatively correlated with mortality, such that early hatching nestlings were more likely to survive than their younger siblings. Brood reduction was more likely to occur in larger broods and was predicted by the
Smith MA, Anderson HL, Karubian J, Stanback M.   +3 more
europepmc   +2 more sources

Common cuckoo females remove more conspicuous eggs during parasitism [PDF]

Royal Society Open Science, 2021
Avian obligate brood parasites gain an advantage by removing the eggs of the cuckoos who have already visited the nest, which can increase the chances of survival for their offspring.
Longwu Wang, Yuhan Zhang, Wei Liang, Anders Pape Møller   +3 more
doaj   +1 more source

Prolactin mediates behavioural rejection responses to avian brood parasitism [PDF]

Journal of Experimental Biology, 2020
ABSTRACT Adaptations 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.
Ruiz-Raya, Francisco, Ibáñez-Álamo, Juan Diego, Parenteau, Charline, Chastel, Olivier, Soler, Manuel   +4 more
openaire   +3 more sources

Responses of Female Yellow Warblers to Playbacks Signaling Brood Parasitism or Predation Risk: A Quasi-Replication Study

Animal Behavior and Cognition, 2021
Many avian species are negatively impacted by obligate avian brood parasites, which lay their eggs in the nests of host species. The yellow warbler (Setophaga petechia), which is host to the brood-parasitic brown-headed cowbird (Molothrus ater ...
Shelby L. Lawson, Janice K. Enos, Niko C. Mendes, Sharon A. Gill, Mark E. Hauber   +4 more
doaj   +1 more source

Host density predicts the probability of parasitism by avian brood parasites [PDF]

Philosophical Transactions of the Royal Society B: Biological Sciences, 2019
The spatial distribution of hosts can be a determining factor in the reproductive success of parasites. Highly aggregated hosts may offer more opportunities for reproduction but can have better defences than isolated hosts. Here we connect macro- and micro-evolutionary processes to understand the link between host density and parasitism, using avian ...
Iliana Medina, Naomi E. Langmore
openaire   +3 more sources

Host species determines egg size in Oriental cuckoo [PDF]

, 2018
© 2018 The Zoological Society of London.The Oriental cuckoo Cuculus optatus is an obligate brood parasite associated with species of the genus Phylloscopus.
Bachurin, Balatsky, Balatsky, Balatsky, Balatsky, Brazil, Bán, Chunihin, Cramp, Cramp, Crawley, Davies, Dawkins, Egorov, Erritzøe, Fossøy, Fossøy, Gaston, Gibbs, Gill, Hargitai, Johnsgard, King, Kislenko, Kislenko, Korelov, Krist, Krüger, Kuzikov, Latter, Litvinenko, Logan, Makatsch, Marchetti, Marchetti, Meshcheryagina, Meshcheryagina, Mitiay, Moksnes, Moksnes, Murav'ev, Numerov, Numerov, Payne, Payne, Pukinsky, R Core Team, Ryabitsev, Schönwetter, Shcherbakov, Sokolov, Tuero, Vikan, Xia, Yang   +54 more
core   +2 more sources

Hosts of avian brood parasites have evolved egg signatures with elevated information content. [PDF]

, 2015
Hosts of brood-parasitic birds must distinguish their own eggs from parasitic mimics, or pay the cost of mistakenly raising a foreign chick. Egg discrimination is easier when different host females of the same species each lay visually distinctive eggs ...
Caves, Eleanor M, Iversen, Edwin S, Spottiswoode, Claire N, Stevens, Martin   +3 more
core   +10 more sources

Ranging behavior of female and male Shiny Cowbirds and Screaming Cowbirds while searching for host nests [PDF]

, 2014
Pusimos a prueba la hipótesis que los tordos parásitos de cría buscan y localizan nidos de hospedadores dentro de un área relativamente constante, ya que esto facilitaría el monitoreo de nidos a través del tiempo y la sincronización del parasitismo con ...
Reboreda, Juan Carlos, Scardamaglia, Romina Clara   +1 more
core   +1 more source

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