The silence of prey: Hummingbirds do not respond to potential ambush predators on flowers

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (Unesp)-
Autor(es): dc.contributorUniversidade Estadual de Campinas (UNICAMP)-
Autor(es): dc.creatorViana, Joao Vitor Alcantara [UNESP]-
Autor(es): dc.creatorGiffu, Murilo Massufaro [UNESP]-
Autor(es): dc.creatorHachuy-Filho, Leandro [UNESP]-
Data de aceite: dc.date.accessioned2022-02-22T00:58:36Z-
Data de disponibilização: dc.date.available2022-02-22T00:58:36Z-
Data de envio: dc.date.issued2021-06-25-
Data de envio: dc.date.issued2021-06-25-
Data de envio: dc.date.issued2021-03-10-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1111/aec.13019-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/210119-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/210119-
Descrição: dc.descriptionPredation is one of the most important ecological factors determining the structure and functioning of ecosystems. Among the various strategies used by predators to obtain food, there are those in which they take advantage of the vulnerability of the prey during its foraging bouts. An unexplored example of this strategy is the interaction between vertebrate pollinators and ambush predators. Despite the reports of arboreal tarantulas preying on hummingbirds, little is known about the behaviour of these birds in the presence of their predators. Thus, our study sought to investigate hummingbird behaviour against potential opportunist predators during their search for food resources. We used Heliconia velloziana as a mutualist model, in which, we separated plant flowers in two groups - plants with predators and plants without predators - in order to observe the behaviour of pollinators during their foraging activity. The rate of visitation was also indirectly estimated based on residual nectar and pollen. Our results show that hummingbirds initially avoided contact with the predator, but later they visited both groups indiscriminately. The results suggest that these birds do not have counter-adaptations to identify invertebrate ambush predators as a threat. Since such predators are generalists and the events of predation are sporadic, they do not exert selective pressures strong enough to lead to the development of evasive behaviours. We conclude that hummingbirds are potential prey for opportunistic ambush predators.-
Descrição: dc.descriptionSao Paulo State University (Unesp)-
Descrição: dc.descriptionUniv Estadual Paulista, Lab Ecol Polinizacao & Interacoes, Dept Bot, Inst Biociencias Botucatu, Botucatu, SP, Brazil-
Descrição: dc.descriptionUniv Estadual Campinas, Inst Biol, Dept Biol Anim, Programa Posgrad Ecol,Lab Interacoes Multitrof &, Campinas, SP, Brazil-
Descrição: dc.descriptionUniv Estadual Paulista, Programa Posgrad Zool, Lab Ecol Polinizacao & Interacoes, Dept Zool,Inst Biociencias Botucatu, Botucatu, SP, Brazil-
Descrição: dc.descriptionUniv Estadual Paulista, Lab Ecol Polinizacao & Interacoes, Dept Bot, Inst Biociencias Botucatu, Botucatu, SP, Brazil-
Descrição: dc.descriptionUniv Estadual Paulista, Programa Posgrad Zool, Lab Ecol Polinizacao & Interacoes, Dept Zool,Inst Biociencias Botucatu, Botucatu, SP, Brazil-
Formato: dc.format515-520-
Idioma: dc.languageen-
Publicador: dc.publisherWiley-Blackwell-
Relação: dc.relationAustral Ecology-
???dc.source???: dc.sourceWeb of Science-
Palavras-chave: dc.subjectbehaviour-
Palavras-chave: dc.subjectcounter&#8208-
Palavras-chave: dc.subjectadaptations-
Palavras-chave: dc.subjecthummingbirds-
Palavras-chave: dc.subjecttarantulas-
Título: dc.titleThe silence of prey: Hummingbirds do not respond to potential ambush predators on flowers-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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