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Host genotype and age have no effect on rejection of parasitic eggs

Naturwissenschaften, 2014
Egg rejection belongs to a widely used host tactic to prevent the costs incurred by avian brood parasitism. However, the genetic basis of this behaviour and the effect of host age on the probability of rejecting the parasitic egg remain largely unknown. Here, we used a set of 15 polymorphic microsatellite loci, including a previously detected candidate
Petr, Procházka   +5 more
openaire   +2 more sources

The bacterial flora of candling‐reject and dead‐in‐shell Turkey eggs

British Poultry Science, 1983
The incidence of bacterial contamination in turkey eggs which were rejected at candling or were "dead in shell" was about 4%. This incidence was lower than that previously found in chicken eggs. Analysis of the bacterial flora indicated that the proportion of Enterobacteriaceae was higher and the proportion of Micrococcus spp. lower in turkey eggs.
J, Bruce, E M, Drysdale
openaire   +2 more sources

Electrophoretic Differentiation of Fresh and Incubator Reject Eggs

Canadian Institute of Food Technology Journal, 1968
Abstract Polyacrylamide-urea-gel electrophoresis at pH 9.1–9.3 and 4.5 M urea showed consistent and reproducible differences in the protein patterns of fresh and incubator-reject eggs. The differences were observed in the ovalbumin and conalbumin regions and were caused by incubation at 37°C.
openaire   +1 more source

Implications of Nest Sanitation in the Evolution of Egg Rejection

2017
Nest sanitation or nest cleaning behaviour in Passeriformes has been widely reported in the literature. It was proposed that this behaviour is a preadaptation for the evolution of egg rejection behaviour in hosts of avian brood parasites, which are primarily passerines. Indeed, the same motor skills underlie nest sanitation and egg rejection behaviours.
Mélanie F. Guigueno, Spencer G. Sealy
openaire   +1 more source

Host intra-clutch variation, cuckoo egg matching and egg rejection by great reed warblers

Naturwissenschaften, 2007
Prevailing 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
openaire   +3 more sources

Rejection of Foreign Eggs by Yellow-Headed Blackbirds

The Condor, 1994
Egg 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.
openaire   +2 more sources

Conflict between egg recognition and egg rejection decisions in common cuckoo (Cuculus canorus) hosts

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
openaire   +2 more sources

Egg rejection changes with seasonal variation in risk of cuckoo parasitism in Daurian redstarts,

Animal Behaviour, 2021
Jianqiang Li   +2 more
exaly  

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