The purpose of this study is the investigation of the ecology of Odonata, and their possible use as indicators of biodiversity and environmental integrity. Surveys have been carried out in thirty-six NATURA 2000 sites in Piedmont (NW Italy), with the main purpose of evaluating habitats preferences of the different species and their relation with human disturbance. Overall we found 43 species, ranging from 21 in Laghi di Avigliana site to 1 in heavy disturbed sites like Lago di Candia. In each sampling station we examined adult microhabitat by standardized sampling techniques; macrohabitat characterization was done by analyzing digital maps of habitat use using a GIS. Environmental preferences of each species were investigated by means of logistic regressions. Implications for conservation Odonatofauna of Piedmont are discussed.
Dragonflies as indicators of biodiversity and environmental integrity: a case study
ISAIA, MARCO;BADINO, Guido;
2010-01-01
Abstract
The purpose of this study is the investigation of the ecology of Odonata, and their possible use as indicators of biodiversity and environmental integrity. Surveys have been carried out in thirty-six NATURA 2000 sites in Piedmont (NW Italy), with the main purpose of evaluating habitats preferences of the different species and their relation with human disturbance. Overall we found 43 species, ranging from 21 in Laghi di Avigliana site to 1 in heavy disturbed sites like Lago di Candia. In each sampling station we examined adult microhabitat by standardized sampling techniques; macrohabitat characterization was done by analyzing digital maps of habitat use using a GIS. Environmental preferences of each species were investigated by means of logistic regressions. Implications for conservation Odonatofauna of Piedmont are discussed.
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