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precedente: S6.7
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livello superiore: S6
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seguente: S6.9
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S6.8 - Ground Beetles (Coleoptera: Carabidae) assemblages in different
agroecosystems in the Po Plain (Italy)
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Gobbi Mauro (1)*,
Fontaneto Diego (1)
| (1) |
Dipart. di Biologia, Università degli Studi di Milano, Via
Celoria 26, 20133 Milano, Italia |
| * |
mauro.gobbi@unimi.it |
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Aim of this paper is to show whether local species assemblages of ground
beetles are influenced by habitat typology in agroecosystems. We analysed 54
different species assemblages from the Po Plain, belonging to 4 habitats:
forest, poplar stand, meadow and crop, obtaining 198 species. Data came from
the literature and our unpublished researches. For each assemblage, we
considered species similarity of community, species richness, and adaptative
parameters of species, like morphology (flying ability, body length), and
ecology (diet). Species assemblages within each habitat were not more similar
each other than between habitats (ANOSIM on Jaccard similarity indexes non
significant). Forests revealed significantly lower values of species richness
than the 3 rural habitats. Predators, wingless and large species were
significantly more frequent in natural environment as forests and less
frequent in crops. In crops small, phytophagous, flying species were more
common; intermediate values were observed in meadows and in poplar stands. Our
results demonstrate that 'functional groups', previously proposed to indicate
coenose stability, are a better index of the impact of human activities in the
landscape than species similarity: lower number of species, but higher
frequency of predator, wingless and large species are connected to stability
and, therefore, environmental quality.
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The following is the established format for referencing this article:
Gobbi & Fontaneto (2006). Ground Beetles (Coleoptera: Carabidae) assemblages in different agroecosystems in the Po Plain (Italy). In
Ecologia. Atti del XV Congresso Nazionale della Società Italiana di Ecologia
(Torino, 12-14 settembre 2005) a cura di Claudio Comoglio, Elena Comino,
e Francesca Bona
[online] URL: http://www.xvcongresso.societaitalianaecologia.org/articles/Gobbi-109.pdf |
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consulta l' Indice analitico (alfabetico per autore) |
sfoglia l' Indice delle sessioni del Congresso |
a cura di Comoglio, Comino, e Bona
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