NDLI: Defining core habitat of local populations of the gray treefrog (Hyla versicolor) based on choice of oviposition site

Content Provider	Springer Nature Link
Author	Johnson, Jarrett R. Semlitsch, Raymond D.
Copyright Year	2003
Abstract	Concern over amphibian population declines and loss of terrestrial and aquatic habitat have emphasized the need to define habitat requirements for each stage in a species' life history. The realization that pond-breeding amphibians spend most of their lives in the terrestrial environment suggests the need to protect terrestrial as well as aquatic habitat. Many studies on amphibian populations have focused on emigration from breeding sites to define habitat use; however these studies do not typically elucidate terrestrial activities of adults within the breeding season. We measured colonization rates of artificial pools by gray treefrogs (Hyla versicolor) at multiple distances from natural breeding ponds. We found a non-random distribution of egg deposition among distances, with 95% of eggs deposited within 15 m of the breeding pond. Additionally, we found that the time to first colonization of artificial pools increased with respect to distance. Our results indicate that adult gray treefrogs may travel up to 200 m within a breeding season, and that multiple breeding ponds may be considered part of a single population. We suggest that a minimum core terrestrial habitat of 60 m surrounding breeding sites is appropriate for protection of local populations of gray treefrogs.
Starting Page	205
Ending Page	210
Page Count	6
File Format	PDF
ISSN	00298549
Journal	Oecologia
Volume Number	137
Issue Number	2
e-ISSN	14321939
Language	English
Publisher	Springer-Verlag
Publisher Date	2003-07-17
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Amphibian Colonization Core Habitat Hyla Metapopulation
Content Type	Text
Resource Type	Article
Subject	Ecology, Evolution, Behavior and Systematics

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