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- Title
Use of amphibians to define riparian zones of headwater streams.
- Authors
Perkins, D. W.; Hunter, Jr., M. L.
- Abstract
Riparian areas are known for their high species richness and their influence on ecological processes. However, riparian zones are difficult to define because of their ambiguous borders. Defining riparian zones by examining habitat use of species that require both terrestrial and aquatic environments is one method that has not been thoroughly examined. We sampled amphibians in Maine, USA, with pitfall traps located at five distances (1, 8, 18, 28, and 33 m) from 15 headwater streams. We captured 1897 amphibians of 10 species over 73 536 trap-nights. We used a repeated-measures analysis of variance to determine if species' capture rates varied among pitfall-trap locations. The highest numbers of three species, spring salamander (Gyrinophilus porphyriticus), two-lined salamander (Eurycea bislineata), and dusky salamander (Desmognathus fuscus), were captured in trap locations closest to the streams. Total species richness and average species richness were highest in the trap location located closest to the stream. We conclude that the riparian zone along headwater streams, as defined by amphibian species richness and abundance, is relatively narrow (7–9 m).
- Subjects
RIPARIAN animals; RIPARIAN forests; AMPHIBIANS; SALAMANDER populations; RINGED salamander; NORTHERN two-lined salamander; BODIES of water
- Publication
Canadian Journal of Forest Research, 2006, Vol 36, Issue 9, p2124
- ISSN
0045-5067
- Publication type
Article
- DOI
10.1139/X06-111