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Cryptic coloration and choice of escape microhabitats by grasshoppers (Orthoptera: Acrididae)

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Abstract:

Cryptic coloration is found in many Orthoptera, especially in Acrididae, showing a great variety of forms. In a grasshopper assemblage in southeastern Brazil, preferences for escape places were detected; grasshoppers tended to escape to backgrounds in which they seem to be more cryptic. Coloration was measured using the Simpson diversity index, to quantify ‘aspect diversity’ (diversity of colours and shapes of patches along the insect's body). A weak positive correlation was found between grasshoppers' aspect diversity and diversification in use of escape places (use of many backgrounds to escape). Grasshoppers with similar colour patterns tended to use the same structures (leaves, sandy soil, stones) to escape.

Document Type: Original Article

DOI: https://doi.org/10.1111/j.1095-8312.1997.tb01803.x

Affiliations: 1: Departamento de Biologia Geral, Universidade Federal de Minos Gerais, 30161-970 Minas Gerais, Brasil 2: LIIP, Departamento de Apologia, Universidade Estadual de Campinas, CP 6109 13083-970 Campinas, Sao Paulo, Brasil

Publication date: 1997-08-01

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