Results 31 to 40 of about 489,438 (287)
The costs of avian brood parasitism explain variation in egg rejection behaviour in hosts [PDF]
Iliana Medina, Naomi E. Langmore
exaly +2 more sources
Probing the Limits of Egg Recognition Using Egg Rejection Experiments Along Phenotypic Gradients. [PDF]
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 +4 more sources
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]
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]
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
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
Egg Rejection by Cowbird Hosts in Grasslands [PDF]
AbstractWe tested Field Sparrows (Spizella pusilla), Vesper Sparrows (Pooecetes gramineus), Lark Sparrows (Chondestes grammacus), Grasshopper Sparrows (Ammodramus savannarum), Dickcissels (Spiza americana), Eastern Meadowlarks (Sturnella magna), and Western Meadowlarks (S. neglecta) to determine whether the low level (<10%) of observed parasitism by
Peer, Brian D. +2 more
openaire +1 more source
Potential cuckoo hosts have similar egg rejection rates to parasitized host species
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
Egg arrangement in avian clutches covaries with the rejection of foreign eggs
In birds, the colour, maculation, shape, and size of their eggs play critical roles in discrimination of foreign eggs in the clutch. So far, however, no study has examined the role of egg arrangement within a clutch on host rejection responses. We predicted that individual females which maintain consistent egg arrangements within their clutch would be ...
Polacikova, L. +7 more
openaire +4 more sources
Social transmission of egg rejection in a cuckoo host [PDF]
Abstract Social learning can enable the rapid dissemination of behaviors throughout a population. Rejection of foreign eggs is a key defense in hosts of avian brood parasites; however, whether social cues can inform whether a host rejects an egg remains unknown.
Canchao Yang, William E Feeney
openaire +2 more sources

