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Imperfect mimicry of host begging calls by a brood parasitic cuckoo: a cue for nestling rejection by hosts?
Coevolutionary interactions between avian brood parasites and their hosts often lead to the evolution of discrimination and rejection of parasite eggs or chicks by hosts based on visual cues, and the evolution of visual mimicry of host eggs or chicks by brood parasites. Hosts may also base rejection...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Oxford University Press
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8599026/ https://www.ncbi.nlm.nih.gov/pubmed/34805544 http://dx.doi.org/10.1093/cz/zoab056 |
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author | Noh, Hee-Jin Gloag, Ros Leitão, Ana V Langmore, Naomi E |
author_facet | Noh, Hee-Jin Gloag, Ros Leitão, Ana V Langmore, Naomi E |
author_sort | Noh, Hee-Jin |
collection | PubMed |
description | Coevolutionary interactions between avian brood parasites and their hosts often lead to the evolution of discrimination and rejection of parasite eggs or chicks by hosts based on visual cues, and the evolution of visual mimicry of host eggs or chicks by brood parasites. Hosts may also base rejection of brood parasite nestlings on vocal cues, which would in turn select for mimicry of host begging calls in brood parasite chicks. In cuckoos that exploit multiple hosts with different begging calls, call structure may be plastic, allowing nestlings to modify their calls to match those of their various hosts, or fixed, in which case we would predict either imperfect mimicry or divergence of the species into host-specific lineages. In our study of the little bronze-cuckoo (LBC) Chalcites minutillus and its primary host, the large-billed gerygone Gerygone magnirostris, we tested whether: (1) hosts use nestling vocalizations as a cue to discriminate cuckoo chicks; (2) cuckoo nestlings mimic the host begging calls throughout the nestling period; and (3) the cuckoo begging calls are plastic, thereby facilitating mimicry of the calls of different hosts. We found that the begging calls of LBCs are most similar to their gerygone hosts shortly after hatching (when rejection by hosts typically occurs) but become less similar as cuckoo chicks get older. Begging call structure may be used as a cue for rejection by hosts, and these results are consistent with gerygone defenses selecting for age-specific vocal mimicry in cuckoo chicks. We found no evidence that LBC begging calls were plastic. |
format | Online Article Text |
id | pubmed-8599026 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | Oxford University Press |
record_format | MEDLINE/PubMed |
spelling | pubmed-85990262021-11-18 Imperfect mimicry of host begging calls by a brood parasitic cuckoo: a cue for nestling rejection by hosts? Noh, Hee-Jin Gloag, Ros Leitão, Ana V Langmore, Naomi E Curr Zool Special Column: Avian brood parasite/host interactions: behavior, personality and mechanism Coevolutionary interactions between avian brood parasites and their hosts often lead to the evolution of discrimination and rejection of parasite eggs or chicks by hosts based on visual cues, and the evolution of visual mimicry of host eggs or chicks by brood parasites. Hosts may also base rejection of brood parasite nestlings on vocal cues, which would in turn select for mimicry of host begging calls in brood parasite chicks. In cuckoos that exploit multiple hosts with different begging calls, call structure may be plastic, allowing nestlings to modify their calls to match those of their various hosts, or fixed, in which case we would predict either imperfect mimicry or divergence of the species into host-specific lineages. In our study of the little bronze-cuckoo (LBC) Chalcites minutillus and its primary host, the large-billed gerygone Gerygone magnirostris, we tested whether: (1) hosts use nestling vocalizations as a cue to discriminate cuckoo chicks; (2) cuckoo nestlings mimic the host begging calls throughout the nestling period; and (3) the cuckoo begging calls are plastic, thereby facilitating mimicry of the calls of different hosts. We found that the begging calls of LBCs are most similar to their gerygone hosts shortly after hatching (when rejection by hosts typically occurs) but become less similar as cuckoo chicks get older. Begging call structure may be used as a cue for rejection by hosts, and these results are consistent with gerygone defenses selecting for age-specific vocal mimicry in cuckoo chicks. We found no evidence that LBC begging calls were plastic. Oxford University Press 2021-07-10 /pmc/articles/PMC8599026/ /pubmed/34805544 http://dx.doi.org/10.1093/cz/zoab056 Text en © The Author(s) (2021). Published by Oxford University Press on behalf of Editorial Office, Current Zoology. https://creativecommons.org/licenses/by-nc/4.0/This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (https://creativecommons.org/licenses/by-nc/4.0/), which permits non-commercial re-use, distribution, and reproduction in any medium, provided the original work is properly cited. For commercial re-use, please contact journals.permissions@oup.com |
spellingShingle | Special Column: Avian brood parasite/host interactions: behavior, personality and mechanism Noh, Hee-Jin Gloag, Ros Leitão, Ana V Langmore, Naomi E Imperfect mimicry of host begging calls by a brood parasitic cuckoo: a cue for nestling rejection by hosts? |
title | Imperfect mimicry of host begging calls by a brood parasitic cuckoo: a cue for nestling rejection by hosts? |
title_full | Imperfect mimicry of host begging calls by a brood parasitic cuckoo: a cue for nestling rejection by hosts? |
title_fullStr | Imperfect mimicry of host begging calls by a brood parasitic cuckoo: a cue for nestling rejection by hosts? |
title_full_unstemmed | Imperfect mimicry of host begging calls by a brood parasitic cuckoo: a cue for nestling rejection by hosts? |
title_short | Imperfect mimicry of host begging calls by a brood parasitic cuckoo: a cue for nestling rejection by hosts? |
title_sort | imperfect mimicry of host begging calls by a brood parasitic cuckoo: a cue for nestling rejection by hosts? |
topic | Special Column: Avian brood parasite/host interactions: behavior, personality and mechanism |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8599026/ https://www.ncbi.nlm.nih.gov/pubmed/34805544 http://dx.doi.org/10.1093/cz/zoab056 |
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