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Spatial Interactions between Two Species of Frogs: Rana okaloosae and R. clamitans clamitans
Ist Teil von
Copeia, 2009-02, Vol.2009 (1), p.138-141
Ort / Verlag
810 East 10th Street, P.O. Box 1897, Lawrence, Kansas 66044: The American Society of Ichthyologists and Herpetologists
Erscheinungsjahr
2009
Quelle
Alma/SFX Local Collection
Beschreibungen/Notizen
Rana okaloosae is endemic to northwestern Florida and is sympatric with R. clamitans clamitans, its closest relative and possibly its main interspecific competitor. We evaluated the movements, dynamic interactions, and nearest neighbor distances of male R. okaloosae and R. c. clamitans in Okaloosa County, Florida. Mean minimum daily distances moved and maximum daily distances moved were greater for R. c. clamitans than R. okaloosae. Dynamic interactions tended to be positive and suggested that there were positive associations between individuals of the two species. Further, nearest neighbor analyses suggested that calling males of both species were positioned in a clumped distribution on any single night. The intraspecific and interspecific interactions of these species were complex and suggested that these species may have selected similar calling locations and appeared not to exclude either conspecifics or heterospecifics.