IBS   24490
INSTITUTO DE BIOLOGIA SUBTROPICAL
Unidad Ejecutora - UE
artículos
Título:
Influence of land use on the taxonomic and functional diversity of dung beetles (Coleoptera: Scarabaeinae) in the southern Atlantic forest of Argentina
Autor/es:
GATTI, M. GENOVEVA; GÓMEZ-CIFUENTES, ANDRÉS; GIMENEZ, VICTORIA C.; GIMENEZ, VICTORIA C.; ZURITA, G. A.; ZURITA, G. A.; MUNEVAR, ANA; MUNEVAR, ANA; GATTI, M. GENOVEVA; GÓMEZ-CIFUENTES, ANDRÉS
Revista:
JOURNAL OF INSECT CONSERVATION
Editorial:
SPRINGER
Referencias:
Lugar: Berlin; Año: 2017 vol. 21 p. 147 - 156
ISSN:
1366-638X
Resumen:
The degradation and replacement of native ecosystems affects both their taxonomic and functional biodiversity. However, native species may find a gradient of habitat suitability in different land uses within a region. The aim of this study was to evaluate the effect of land use on the taxonomic and functional diversity of dung beetle assemblages in the southern Atlantic forest of Argentina. Dung beetles were sampled in both the native forest (control) and different land uses (Pine and Yerba mate plantations and cattle pastures) during the 2014 summer, using pitfall traps baited with human feces and rotten meat. Samplings were taken from 20 different sites, with five replicates of each land use and the native forest (100 pitfall traps in total). A total of 1699 beetles of 27 species were captured. Canthon quinquemaculatus, Canthon conformis andDichotomius sericeus were the most abundant species. Cattle pastures were the land use most negatively affected in their taxonomic and functional diversity, particularly large paracoprid dung beetles. Pine plantations maintained their taxonomic and functional diversity in relation to the native forest and Yerba mate plantations showed, in general, an intermediate situation. Microclimatic conditions (average temperature and humidity and maximum temperature) werecorrelated with functional diversity (the proportion of large paracoprid dung beetles decreased with increasing temperature) and are probably good predictors to explain the observed patterns of functional diversity of dung beetles. The development of sustainable production systems that preserve the native biodiversity requires the conservation of key components from the ecological niche of native species, especially microclimatic conditions.