Can microhabitat selection explain sex-related colour morph frequencies in the grasshopper Acrida conica Fabricius?

M.C. Calver; J.S. Bradley

doi:10.1016/S0003-3472(05)80653-0

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Can microhabitat selection explain sex-related colour morph frequencies in the grasshopper Acrida conica Fabricius?

Journal article

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Can microhabitat selection explain sex-related colour morph frequencies in the grasshopper Acrida conica Fabricius?

M.C. Calver and J.S. Bradley

Animal Behaviour, Vol.41(6), pp.1101-1102

1991

DOI: https://doi.org/10.1016/S0003-3472(05)80653-0

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Abstract

Green—brown colour polymorphism is common in the genus Acrida (Rowell 1971), and in the Australian species A. conica green and brown morphs occur sympatrically. Nymphs show significant associations between morph and sex, more female grasshoppers being green. This association occurs less frequently in adults (Garlinge et al. 1991). Acrida conica can also change colour at a moult depending on stimuli in its microhabitat (M. C. Calver, unpublished data), as can some congenerics (Rowell 1971). Here, we test the hypothesis of Garlinge et al (1991) that the sex—morph association is caused by microhabitat selection by the sexes. if this were so, females would select green grass whose microenvironment would cause them to moult into the green morph, while males would choose brown backgrounds, ultimately leading to brown grasshoppers. One of us (Calver 1985) presented preliminary results which suggested that substrate matching occurred in A. conica, but the approach used then prevented assessment of sex differences.

Details

Title: Can microhabitat selection explain sex-related colour morph frequencies in the grasshopper Acrida conica Fabricius?
Authors/Creators: M.C. Calver (Author/Creator) - Murdoch University
J.S. Bradley (Author/Creator) - Murdoch University
Publication Details: Animal Behaviour, Vol.41(6), pp.1101-1102
Publisher: Academic Press
Identifiers: 991005541315607891
Murdoch Affiliation: School of Biological and Environmental Sciences
Language: English
Resource Type: Journal article

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Citation topics: 3 Agriculture, Environment & Ecology; 3.35 Zoology & Animal Ecology; 3.35.434 Sexual Selection
Web Of Science research areas: Behavioral Sciences; Zoology
ESI research areas: Plant & Animal Science