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Behavioural and life history traits in temporary and perennial waters: comparisons among three pairs of sibling dragonfly species
Dept. of Environ. System Analysis, Institut für Geoökologie, TU Braunschweig, Langer Kamp 19c, DE-38102 Braunschweig, Germany.
Halmstad University, School of Business and Engineering (SET), Biological and Environmental Systems (BLESS), Ecology and Environmental Science.
Dept. of Environ. System Analysis, Institut für Geoökologie, TU Braunschweig, Langer Kamp 19c, DE-38102 Braunschweig, Germany.
Dept. of Environ. System Analysis, Institut für Geoökologie, TU Braunschweig, Langer Kamp 19c, DE-38102 Braunschweig, Germany.
2005 (English)In: Oikos, ISSN 0030-1299, E-ISSN 1600-0706, Vol. 108, no 3, p. 609-617Article in journal (Refereed) Published
Abstract [en]

Identifying and examining traits that influence the distribution of species is crucial to the understanding of community structure. Theory predicts that traits should differ between species that live in temporary and permanent waters because of differing major environmental variables; viz drying out and predator presence, respectively. Species, however, will also be influenced by their evolutionary history, i.e. by the traits of their common ancestors. We studied differences in life history and behaviour traits in a series of laboratory experiments using pairs of dragonfly species out of three genera of Namibian Libellulidae (Odonata) with one species from each type of habitat. As predicted, growth rates were significantly higher in the temporary water species compared to the permanent water species. Activity and foraging, in contrast, differed between the genera, but did not differ between the habitat types. Hence, our study implies that the behavioural traits are influenced by phylogenetic inertia rather than by the habitat variables, while growth rate is adapted to the habitat. We argue that in all three genera one species has diverged recently from a sister species that lives in the original habitat of the genus, which may be temporary waters in Crocothemis Brauer and in Orthetrum Newman, and permanent waters in Trithemis Brauer. The behavioural traits may therefore be less well adapted. Rapid growth may be the more relevant trait because it is crucial to survival in temporary waters.

Place, publisher, year, edition, pages
Blackwell Publishing, 2005. Vol. 108, no 3, p. 609-617
Keywords [en]
perennial waters, temporary waters, dragonflies
National Category
Ecology
Identifiers
URN: urn:nbn:se:hh:diva-319DOI: 10.1111/j.0030-1299.2005.13230.xISI: 000226898200019Scopus ID: 2-s2.0-14844313769Local ID: 2082/621OAI: oai:DiVA.org:hh-319DiVA, id: diva2:237498
Available from: 2006-12-13 Created: 2006-12-13 Last updated: 2018-03-23Bibliographically approved

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