Abstract
Microhabitat segregation among grasshopper species in Asia has not been well studied. We determined the differences in the use of substrates by three common North East Asian grasshopper species co-existing on a natural meadow near Seoul, South Korea. While many Oedaleusinfernalis individuals were found on the ground, Acridacinerea and Atractomorphalata were usually observed on plants. Acridacinerea was mostly observed on the grass Zoysiajaponica (Poaceae) and Atractomorphalata was mostly found on plants from the family Asteraceae. This is the first study to provide quantitative information about microhabitat differences among some common grasshoppers in rural habitats of continental North East Asia. Future studies should focus on determining the mechanisms that produce such ecological segregation.
Highlights
Microhabitat selection is important for small ectothermic animals including insects (Ahnesjö and Forsman 2006, Gardiner and Hassall 2009), and for herbivores with specific diets
While many Oedaleus infernalis individuals were found on the ground, Acrida cinerea and Atractomorpha lata were usually observed on plants
Acrida cinerea was mostly observed on the grass Zoysia japonica (Poaceae) and Atractomorpha lata was mostly found on plants from the family Asteraceae
Summary
Microhabitat selection is important for small ectothermic animals including insects (Ahnesjö and Forsman 2006, Gardiner and Hassall 2009), and for herbivores with specific diets (including those that sequester unpalatable chemicals from plants for their own protection against predators; Sword et al 2000, Sword 2002). Microhabitat segregation among grasshopper species in Asia has not been well studied. While many Oedaleus infernalis individuals were found on the ground, Acrida cinerea and Atractomorpha lata were usually observed on plants.
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