The Odonata of newly constructed ponds with life history and production of dominant species

Autor:	Amy Braccia, Van D. Christman, J. Reese Voshell
Rok vydání:	2007
Předmět:	biology Ecology Enallagma Gomphus exilis Aquatic Science Odonata biology.organism_classification Colonisation Taxon Habitat Insect Science Low density Life history Ecology Evolution Behavior and Systematics
Zdroj:	Aquatic Insects. 29:115-130
ISSN:	1744-4152 0165-0424
DOI:	10.1080/01650420701329279
Popis:	The species composition of an odonate assemblage from six new ponds in Virginia, USA, was documented, and life histories and production of three dominant odonate taxa (Anax junius (Drury), Gomphus exilis Selys, and Enallagma civile (Hagen)) were determined. The assemblage consisted of 19 species and was numerically dominated by A. junius, G. exilis, E. civile, and libellulids. Production of A. junius, G. exilis, and E. civile was 795 mg DW m−2 yr−1, 27 mg DW m−2 yr−1, and 236 mg DW m−2 yr−1, respectively. Coefficients of variation for production of each species were 50 – 77%, which suggests that variance should be considered in production estimates, especially if results are to be compared across studies or habitats. Low density and production of the dominant species in this study may be a result of inadequate densities of food items and limited availability of preferred habitat in the newly created ponds.
Databáze:	OpenAIRE
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