Analysis of three amphibian populations with quarter-century long time series
JournalArticle (Originalarbeit in einer wissenschaftlichen Zeitschrift)
 
ID 393981
Author(s) Meyer, A H; Schimidt, B R; Grossenbacher, K
Author(s) at UniBasel Meyer, Andrea Hans
Year 1998
Title Analysis of three amphibian populations with quarter-century long time series
Journal Proceedings of the Royal Society of Edinburgh. Section B, Biological sciences
Volume 265
Number 1395
Pages / Article-Number 523-8
Keywords density dependence tests, global amphibian decline, population fluctuations, population regulation, Rana temporaria, time-series
Abstract Amphibians are in decline in many parts of the world. Long time-series of amphibian populations are necessary to distinguish declines from the often strong fluctuations observed in natural populations. Time-series may also help to understand the causes of these declines. We analysed 23-28-year long time-series of the frog Rana temporaria. Only one of the three studied populations showed a negative trend which was probably caused by the introduction of fish. Two populations appeared to be density regulated. Rainfall had no obvious effect on the population fluctuations. Whereas long-term studies of amphibian populations are valuable to document population declines, most are too short to reveal those factors that govern population dynamics or cause amphibian populations to decline.
Publisher Royal Society of Edinburgh
ISSN/ISBN 0308-2113
edoc-URL http://edoc.unibas.ch/dok/A5840051
Full Text on edoc No
Digital Object Identifier DOI 10.1098/rspb.1998.0326
PubMed ID http://www.ncbi.nlm.nih.gov/pubmed/9606133
ISI-Number WOS:000072731600012
Document type (ISI) Article
 
   

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