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Cognitive Decision Rules for Egg Rejection
2017Egg rejection is the best studied behavioral adaptation by hosts to avian brood parasitism. Investigations of the mechanism(s) by which a host accomplishes the task of perceiving and deciding to reject a foreign egg have been a hotbed of debate and discovery for decades.
Thomas Manna +2 more
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Rejection of parasitic eggs by Yellow-bellied Prinias: importance of egg spot location
Journal of Ornithology, 2020Characteristics of egg surfaces serve as recognition cues that allow avian hosts to detect and reject foreign eggs in brood parasitism. The blunt egg pole hypothesis suggests that the blunt egg pole is an essential signal in parasitic egg recognition.
Longwu Wang, Yu-Cheng Hsu, Wei Liang
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Host intra-clutch variation, cuckoo egg matching and egg rejection by great reed warblers
Naturwissenschaften, 2007Prevailing theory predicts that lower levels of intra-clutch variation in host eggs facilitate the detection of brood parasitism. We assessed egg matching using both human vision and UV-VIS spectrophotometry and then followed the nest fate of great reed warblers naturally parasitised by European cuckoos.
Cherry, MI, Bennett, ATD, Moskát, C
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Animal Cognition, 2007
Common cuckoos (Cuculus canorus) are obligate brood parasites, laying eggs into nests of small songbirds. The cuckoo hatchling evicts all eggs and young from a nest, eliminating hosts' breeding success. Despite the consistently high costs of parasitism by common cuckoos, great reed warbler (Acrocephalus arundinaceus) hosts sometime accept and other ...
Csaba, Moskát, Márk E, Hauber
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Common cuckoos (Cuculus canorus) are obligate brood parasites, laying eggs into nests of small songbirds. The cuckoo hatchling evicts all eggs and young from a nest, eliminating hosts' breeding success. Despite the consistently high costs of parasitism by common cuckoos, great reed warbler (Acrocephalus arundinaceus) hosts sometime accept and other ...
Csaba, Moskát, Márk E, Hauber
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Inferential reasoning and egg rejection in a cooperatively breeding cuckoo
Animal Cognition, 2014Inferential reasoning-associating a visible consequence with an imagined event-has been demonstrated in several bird species in captivity, but few studies have tested wild birds in ecologically relevant contexts. Here, we investigate inferential reasoning by the greater ani, a cooperatively breeding cuckoo in which several females lay eggs in one nest.
Christina, Riehl +2 more
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Egg rejection in a passerine bird: size does matter
Animal Behaviour, 2000Avian brood parasites reduce the reproductive success of their hosts, selecting for the evolution of egg discrimination by the host, and potentially creating a coevolutionary arms race between host and parasite. Host egg discrimination ability is crucial in determining whether the arms race results in extinction (of the parasite on a particular host ...
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Behavioral Ecology and Sociobiology, 2009
Brood parasitism could be a selective pressure on each female to have a type of egg that permits recognition. House sparrows (Passer domesticus) undergo conspecific brood parasitism and can recognise parasitic eggs. In this study, we analyse the effect of relative size in experimental parasitic eggs compared to the host eggs. We modified egg colour and
M. Dolores G. López-de-Hierro +1 more
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Brood parasitism could be a selective pressure on each female to have a type of egg that permits recognition. House sparrows (Passer domesticus) undergo conspecific brood parasitism and can recognise parasitic eggs. In this study, we analyse the effect of relative size in experimental parasitic eggs compared to the host eggs. We modified egg colour and
M. Dolores G. López-de-Hierro +1 more
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Rejection of Foreign Eggs by Yellow-Headed Blackbirds
The Condor, 1994Egg rejection behavior is more likely to develop in avian populations that experience high levels of heterospecific brood parasitism than in populations where parasitism exerts little selection pressure to recognize and respond to foreign eggs (Davies and Brooke 1989, Brown et al.
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Proximate Mechanisms of Parasite Egg Rejection by Northern Mockingbirds
The Wilson Journal of Ornithology, 2009Abstract Northern Mockingbirds (Mimus polyglottos) are known to reject parasitic eggs at an intermediate rate. However, proximate mechanisms of rejection remain unexplored. Our objectives were to examine the rejection behavior of Northern Mockingbirds in northeast Louisiana, explore if nesting date or egg color of parasitic eggs influence the rate that
John Quinn, Kim Marie Tolson
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Mechanisms of avian egg recognition: Which egg parameters elicit responses by rejecter species?
Behavioral Ecology and Sociobiology, 1982Some species of North American passerines nearly always reject nonmimetic eggs placed in their nests and have apparently evolved this behavior in response to brood parasitism. Experiments presented here examined the specific egg parameters to which ‘rejecter species’ respond, the relative tolerances rejecters show towards nonmimetic eggs and the degree
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