Impact of nest sanitation behavior on hosts' egg rejection: an empirical study and meta-analyses.
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TLDR
The results suggest that nest sanitation, which is an ancient behavior, is more fundamental than egg rejection, but the effect of the former on the latter is complex and needs further study.Abstract:
Egg rejection in birds is a specific adaptation toward avian brood parasitism, whereas nest sanitation is a general behavior for cleaning the nest and avoiding predation. However, both behaviors refer to the action of ejecting objects out of the nest, and nest sanitation has been proposed as a pre-adaptation for egg rejection. Here, we tested the eliciting effect of nest sanitation on egg rejection in the red-whiskered bulbul Pycnonotus jocosus, a potential host species that are sympatric with parasitic cuckoos. We conducted meta-analyses of previous studies on both nest sanitation and egg rejection, in order to evaluate the consistency of our conclusions. Our results showed that nest sanitation did not elicit egg rejection in P. jocosus. The conclusions concerning such an eliciting effect from previous studies were mixed, whereas the methodologies were inconsistent, making the studies unsuitable for comparisons. However, the ejection frequency of nest sanitation was consistently higher than the frequency of egg rejection across different host species or populations. These results suggest that nest sanitation, which is an ancient behavior, is more fundamental than egg rejection, but the effect of the former on the latter is complex and needs further study. Standardized methodologies and the integration of behavior, physiology, and modeling may provide better opportunities to explore the relationship between nest sanitation and egg rejection.read more
Citations
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Personality, recognition cues, and nest sanitation in obligate avian brood parasitism: what do we know and what comes next?
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Egg recognition and nestling discrimination in the Crested Myna (Acridotheres cristatellus): Size matters
Jinmei Liu,Yuran Liu,Weifa Liang +2 more
TL;DR: In this article , the authors investigated whether egg and nestling recognitions in the Crested Myna (Acridotheres cristatellus) are based on size cues, and whether the egg cognitive mechanism is recognition by discordancy based on the size cues.
Journal ArticleDOI
Nest sanitation as an effective defence against brood parasitism
Michal Šulc,Anna E. Hughes,Lisandrina Mari,Jolyon Troscianko,Oldrich Tomasek,Tomáš Albrecht,Václav Jelínek +6 more
Journal ArticleDOI
Nest sanitation as an effective defence against brood parasitism
Michal Šulc,Anna E. Hughes,Lisandrina Mari,Jolyon Troscianko,Oldrich Tomasek,Tomáš Albrecht,Václav Jelínek +6 more
TL;DR: It is suggested that barn swallows have not evolved a direct defence against brood parasitism but instead, egg ejection might be a product of their well-developed nest sanitation behaviour, and the fact that mimetic eggs were ejected especially in the pre-laying stage shows that nest sanitation could be an effective defence against poorly timed brood Parasitism.
References
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A Model System for Coevolution: Avian Brood Parasitism
TL;DR: Systems in which the interacting species are few (optimally only two) provide the clearest examples of coevolution, which includes many mutualistic relationships and some parasite-host associations.
A model system of coevolution: avian brood parasitism.
TL;DR: A rigorous definition of coevolution requires that a trait in one species has evolved in response to a trait of another species, which trait was itself evolved by the first species as discussed by the authors.
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An Experimental and Teleonomic Investigation of Avian Brood Parasitism
TL;DR: Avian brood parasitism, the phenomenon in which certain birds, the parasites, deposit their eggs in the nests of other birds, their hosts, is especially well suited to teleonomic studies since it provides a system in which the presence or absence of relatively obvious adaptations can be examined in two interacting genetic lineages.
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Egg recognition and counting reduce costs of avian conspecific brood parasitism
TL;DR: Clutch size comparisons revealed that females combine egg recognition and counting to make clutch size decisions—by counting their own eggs, while ignoring distinctive parasitic eggs, females avoid a maladaptive clutch size reduction.
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Conspecific Brood Parasitism in Birds: A Life-History Perspective
Bruce E. Lyon,John M. Eadie +1 more
TL;DR: The intersection of life-history evolution, conflicts of interest, and frequency-dependent fitness provides much scope for theoretical exploration, and recent models indicate a complex range of evolutionary dynamics is possible, including consequences of CBP for population dynamics and conservation.