Odonate (dragonflies and damselflies) species diversity as an indicator of human wetland disturbance
Jessica M. Orlofske, firstname.lastname@example.org and Christopher D. Tyrrell, email@example.com. University of Wisconsin-Stevens Point, 350 E. Oak Lane, Oak Creek, WI
Human manipulations of wetlands for development and agriculture have a range of effects on the structure and functioning of the biotic and abiotic components of the ecosystem. Aquatic insects can be used to characterize the health of aquatic ecosystems. Eight wetland areas were chosen based on specific site characteristics to compare species diversity of odonates (dragonflies and damselflies) between anthropogenically altered wetlands of different ages. The alteration of these sites affected the soil, hydrology, and vegetation which could change both larval and adult odonate species presence and abundance. Odonates were collected and identified at all sites along with chemical and physical water analysis, vegetation surveys, and environmental characteristics from May to September 2004. The results will compare the odonate diversity between sites of different ages with an explanation based on site characteristics.
Species 1: Odonata Lestidae Lestesdisjunctus (Common spreadwing) Species 2: Odonata Coenagrionidae Ischnuraverticalis (Eastern forktail) Species 3: Odonata Libellulidae Libellulapulchella (Twelve-spotted skimmer) Keywords: aquatic insects