Results 21 to 30 of about 73,706 (287)
Egg retrieval versus egg rejection in cuckoo hosts. [PDF]
Philos Trans R Soc Lond B Biol Sci, 2019 Before complex nests evolved, birds laid eggs on the ground, and egg retrieval evolved as an adaptation against accidental displacement of eggs outside the nest. Therefore, egg retrieval is an ancient, and likely ancestral, widespread behaviour in birds.
Yang C, Liang W, Møller AP.
europepmc +4 more sources
Probing the Limits of Egg Recognition Using Egg Rejection Experiments Along Phenotypic Gradients. [PDF]
J Vis Exp, 2018 Brood parasites lay their eggs in other females' nests, leaving the host parents to hatch and rear their young. Studying how brood parasites manipulate hosts into raising their young and how hosts detect parasitism provide important insights in the field of coevolutionary biology.
Canniff L +6 more
europepmc +3 more sources
The limits of egg recognition: testing acceptance thresholds of American robins in response to decreasingly egg-shaped objects in the nest [PDF]
Royal Society Open Science, 2021 Some hosts of avian brood parasites reduce or eliminate the costs of parasitism by removing foreign eggs from the nest (rejecter hosts). In turn, even acceptor hosts typically remove most non-egg-shaped objects from the nest, including broken shells ...
Mark E. Hauber +4 more
doaj +1 more source
Avian Research, 2023 Most studies exploring abilities of hosts to detect brood parasitism are based on detecting colour and/or pattern differences among parasitic and host eggs or nestlings, while only few were focused on size differences. True recognition and recognition by
Jinmei Liu +3 more
doaj +1 more source
Reject the odd egg: egg recognition mechanisms in parrotbills [PDF]
Behavioral Ecology, 2014 Studies of the behavior of animals when confronted with tasks differing in complexity can improve our understanding of animal cognition and learning mechanisms. Coevolutionary interactions between brood parasites and their hosts provide an ideal opportunity for studying animal cognition because egg recognition and rejection are some of the most ...
Canchao Yang +5 more
openaire +3 more sources
Could a Factor That Does Not Affect Egg Recognition Influence the Decision of Rejection? [PDF]
PLoS ONE, 2015 Rejection of the parasitic egg is the most important defence of hosts against brood parasites. However, this response is variable among and within species, and egg discrimination is not always followed by egg rejection.
Francisco Ruiz-Raya +3 more
doaj +1 more source
Visual acuity and egg spatial chromatic contrast predict egg rejection behavior of American robins [PDF]
Journal of Experimental Biology, 2020 Color and spatial vision are critical for recognition and discrimination tasks affecting fitness, including finding food and mates and recognizing offspring. For example, as a counter defense to avoid the cost of raising the unrelated offspring of obligate interspecific avian brood parasites, many host species routinely view, recognize, and remove the ...
Alec B. Luro +3 more
openaire +4 more sources
Ecology and Evolution, 2020 Background Among potential hosts, the rejection of foreign eggs, which is a common and effective strategy to counter brood parasitism, depends on egg recognition.
Donglai Li +4 more
doaj +1 more source
Frontiers in Ecology and Evolution, 2021 The existence of a coevolutionary process between avian brood parasites and their hosts predicts a lower intra-clutch variation in egg appearance of host eggs among rejecters as this would favor egg discrimination of parasite eggs by hosts once parasitic
Mercedes Molina-Morales +6 more
doaj +1 more source
Potential cuckoo hosts have similar egg rejection rates to parasitized host species
Avian Research, 2020 Background Thrush species are rarely parasitized by cuckoos, but many have a strong egg recognition ability. To date, there is a limited understanding of the relationship between host egg rejection and cuckoo parasitism rate.
Tingting Yi, Yue-Hua Sun, Wei Liang
doaj +1 more source