Two cleptoparasitic ant crickets (Orthoptera: Myrmecophilidae) that share similar host ant species differentiate their habitat use in areas of sympatry in Japan

T. Komatsu, M. Maruyama, T. Itino

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Abstract

Myrmecophilus crickets (Myrmecophilidae, Orthoptera) are typical ant guests. In Japan, about 10 species are recognized on the basis of morphological and molecular phylogenetic frameworks. We focused on two of these species, M. kinomurai and M. kubotai, and compared their host and habitat use. Previous work based on a limited sampling effort suggested that these two species share some ant species as hosts, but that their habitat preferences (open versus shaded) differ. Here, on the basis of exhaustive sampling across Japan, we confirmed that M. kinomurai and M. kubotai do not differ in their host ant preferences: both prefer formicine ants as hosts. As for habitat preferences, M. kubotai occurred significantly more often in open habitats than in shaded ones (P < 0.05). In contrast, M. kinomurai showed no habitat preference in areas where M. kubotai did not occur. However, M. kinomurai showed an obvious preference for shaded environments in areas of sympatry with its potential competitor M. kubotai. This pattern suggests that interspecific competition between M. kinomurai and M. Kubotai is a factor causing habitat differentiation in areas of sympatry.

Original languageEnglish
Pages (from-to)364-373
Number of pages10
JournalSociobiology
Volume62
Issue number3
DOIs
Publication statusPublished - Sep 2015

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Gryllidae
Orthoptera
sympatry
Formicidae
habitat preferences
Japan
habitats
interspecific competition
sampling
phylogeny

All Science Journal Classification (ASJC) codes

  • Insect Science

Cite this

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title = "Two cleptoparasitic ant crickets (Orthoptera: Myrmecophilidae) that share similar host ant species differentiate their habitat use in areas of sympatry in Japan",
abstract = "Myrmecophilus crickets (Myrmecophilidae, Orthoptera) are typical ant guests. In Japan, about 10 species are recognized on the basis of morphological and molecular phylogenetic frameworks. We focused on two of these species, M. kinomurai and M. kubotai, and compared their host and habitat use. Previous work based on a limited sampling effort suggested that these two species share some ant species as hosts, but that their habitat preferences (open versus shaded) differ. Here, on the basis of exhaustive sampling across Japan, we confirmed that M. kinomurai and M. kubotai do not differ in their host ant preferences: both prefer formicine ants as hosts. As for habitat preferences, M. kubotai occurred significantly more often in open habitats than in shaded ones (P < 0.05). In contrast, M. kinomurai showed no habitat preference in areas where M. kubotai did not occur. However, M. kinomurai showed an obvious preference for shaded environments in areas of sympatry with its potential competitor M. kubotai. This pattern suggests that interspecific competition between M. kinomurai and M. Kubotai is a factor causing habitat differentiation in areas of sympatry.",
author = "T. Komatsu and M. Maruyama and T. Itino",
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