Function of coprophagous beetles (Coleoptera: Scarabaeidae, Geotrupidae, Hydrophilidae) in cattle pastures inferred from pitfall trapping data
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An analysis of data on the dry weight biomass of coprophagous beetles in standardized dung (4.5 l) was conducted in order to characterize the spatial and the seasonal distribution of the beetles’ biomass in cattle pastures and to elucidate their function in dung decomposition. Nested Anova with factors of farm, site (nested in farm), seasonal period and year
was used to evaluate the effect of these factors on the biomass of four functional species groups: the dung dwellers of Scarabaeidae (subfamily Aphodiinae), the dung dwellers of Hydrophilidae, the small tunnellers of Scarabaeidae (subfamily Coprinae) and the large tunnellers of Geotrupidae. The spatial variation of biomass (between the sites and the farms) was insignificant in the two dung-dweller groups and in the large-tunnellers group. On the other hand, a significant seasonal variation of biomass was found in all but the large tunneller group. In dung dwellers, the spring biomass was formed mainly by two species, Aphodius prodromus and A. sphacelatus. In summer, most of the biomass was accounted for by Sphaeridium lunatum, S. scarabaeoides and A. rufipes. In the two tunneller groups, Onthophagus fracticornis, Geotrupes stercorarius and G. spiniger formed a majority of the biomass in dung.
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Podrobná bibliografie
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Hlavní autor
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Martin Šlachta, 1975-
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Další autoři
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Jan Frelich, 1941-
Tomáš Tonka
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Typ dokumentu
- Články
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Fyzický popis
- 7 il.
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Publikováno v
- Journal of Agrobiology. -- ISSN 1803-4403. -- Roč. 27, č. 2 (2010), s. 85-91
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Témata
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Popis jednotky
- 1 graf, 6 tabulek
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Bibliografie
- Literatura na s. 91
