skip to main content
Idioma:
Primo Search
Clear Search Box
Search in: Busca Geral
Busca Avançada
Busca por Índices

Color polymorphic lures target different visual channels in prey

White, Thomas E. ; Kemp, Darrell J.

Evolution, 2016-06, Vol.70 (6), p.1398-1408 [Periódico revisado por pares]

United States: Blackwell Publishing Ltd

Texto completo disponível

Citações Citado por
  • Título:
    Color polymorphic lures target different visual channels in prey
  • Autor: White, Thomas E. ; Kemp, Darrell J.
  • Assuntos: Animals ; Araneae ; Assessments ; Bias ; BRIEF COMMUNICATION ; Channels ; Color ; Color Perception ; Communication ; deception ; Diptera - physiology ; Effectiveness ; Environment models ; Evolution ; Female ; Flies ; Food Chain ; Luminance ; Phototaxis ; Pigmentation ; Polymorphism ; Predation ; Predatory Behavior ; Prey ; Prey selection ; Receivers ; sensory trap ; signal ; spider ; Spiders ; Spiders - physiology ; Viewing ; Vision ; Visual observation ; Visual signals
  • É parte de: Evolution, 2016-06, Vol.70 (6), p.1398-1408
  • Notas: Australian Research Council - No. DP140104107
    Australian Postgraduate Award and Australasian Evolution Society
    ark:/67375/WNG-835L3P43-N
    ArticleID:EVO12948
    istex:EAA0813F52F1CC524D7C3C32BDCD93BBFD8EA43D
    ObjectType-Article-1
    SourceType-Scholarly Journals-1
    ObjectType-Feature-2
    content type line 23
  • Descrição: Selection for signal efficacy in variable environments may favor color polymorphism, but little is known about this possibility outside of sexual systems. Here we used the color polymorphic orb-web spider Gasteracantha fornicata, whose yellow- or white-banded dorsal signal attracts dipteran prey, to test the hypothesis that morphs may be tuned to optimize either chromatic or achromatic conspicuousness in their visually noisy forest environments. We used data from extensive observations of naturally existing spiders and precise assessments of visual environments to model signal conspicuousness according to dipteran vision. Modeling supported a distinct bias in the chromatic (yellow morph) or achromatic (white morph) contrast presented by spiders at the times when they caught prey, as opposed to all other times at which they may be viewed. Hence, yellow spiders were most successful when their signal produced maximum color contrast against viewing backgrounds, whereas white spiders were most successful when they presented relatively greatest luminance contrast. Further modeling across a hypothetical range of lure variation confirmed that yellow versus white signals should, respectively, enhance chromatic versus achromatic conspicuousness to flies, in G. fornicata's visual environments. These findings suggest that color polymorphism may be adaptively maintained by selection for conspicuousness within different visual channels in receivers.
  • Editor: United States: Blackwell Publishing Ltd
  • Idioma: Inglês
Links
Voltar para lista de resultados

  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

Buscando em bases de dados remotas. Favor aguardar.