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Behavioural and chemical studies of discrimination processes in the leaf-cutting ant Acromyrmex laticeps nigrosetosus (Forel, 1908)
(Brazilian Journal of Biology, 2017)
Non-mimetic shiny cowbird nestlings escape discrimination by baywings in absence of host nest mates
(Springer, 2019-09)
Nestlings of obligate brood parasites must obtain resources from heterospecific hosts that are attuned to the solicitation behaviours of their own progeny. Failing to match the appropriate stimuli may result in suboptimal ...
Sex differences in retention after a visual or a spatial discrimination learning task in brood parasitic shiny cowbirds
(Elsevier Science, 2015-10)
Females of avian brood parasites, like the shiny cowbird (Molothrus bonariensis), locate host nests and on subsequent days return to parasitize them. This ecological pressure for remembering the precise location of multiple ...
Host provisioning behavior favors mimetic begging calls in a brood-parasitic cowbird
(Oxford University Press, 2017-12)
The vocalizations of some young brood-parasitic birds closely resemble those of their host's young. Such similarities might arise because hosts bestow the greatest parental care in response to their own species' call type. ...
Host-parasite coevolution beyond the nestling stage?: Mimicry of host fledglings by the specialist screaming cowbird
(The Royal Society, 2012-05)
textbook examples of host-parasite coevolution. By contrast, reciprocal adaptations and counteradaptations beyond the egg stage in brood parasites and their hosts have received less attention. The screaming cowbird (Molothrus ...
Innate development of acoustic signals for host parent–offspring recognition in the brood-parasitic Screaming Cowbird Molothrus rufoaxillaris
(Wiley Blackwell Publishing, Inc, 2019-03)
Young birds communicate their need to parents through complex begging displays that include visual and acoustic cues. Nestlings of interspecific brood parasites must ‘tune’ into these communication channels to secure ...
Variation in multicomponent recognition cues alters egg rejection decisions: A test of the optimal acceptance threshold hypothesis
(The Royal Society, 2019-04)
The optimal acceptance threshold hypothesis provides a general predictive framework for testing behavioural responses to discrimination challenges. Decision-makers should respond to a stimulus when the perceived difference ...
Decision rules for egg recognition are related to functional roles and chemical cues in the queenless ant Dinoponera quadriceps
(SPRINGER, 2009)
The capacity to distinguish colony members from strangers is a key component in social life. In social insects, this extends to the brood and involves discrimination of queen eggs. Chemical substances communicate colony ...
Female and male rufous horneros eject shiny cowbird eggs using a mental template of the size of their own eggs
(Elsevier Science, 2020-09)
Hosts of interspecific brood parasites often evolve antiparasitic defences, like the recognition and rejection of parasite's eggs. Most hosts use differences in coloration and maculation to discriminate between their own ...