The Herpetological Journal
The Herpetological Journal is the Society's prestigious quarterly scientific journal. Articles are listed in Biological Abstracts, Current Awareness in Biological Sciences,Current Contents, Science Citation Index, and Zoological Record.
ISSN 0268-0130
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pdf 05. Population ecology of the great crested newt (Triturus cristatus) in an agricultural landscape dynamics, pond fidelity and dispersal
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Open Access
pp.165-171
Authors: A. Kupfer And S. Kneitz
Abstract: Aspects of the population ecology of the great crested newt ( Triturus cristatus) were studied over a period of seven years ( 1989- 1995) in an agricultural landscape of the Drachcnfelser Landchen, south-west of Bonn, Germany. Seven ponds - three natural and four man-made - were monitored by drift fences and pitfall traps. The numbers of adults increased from 1 992. The number of juvenile emigrants showed marked fluctuations between years at all ponds and in some years juvenile production failed completely at the temporary ponds. A total of 63% of the adult newts identified in 1 994 at four sites were recaptured in the subsequent year. Ninety-nine percent of the newts recaptured returned to the place of the first capture. In contrast to the adults, a number of juvenile great crested newts moved to neighbouring ponds, migrating a maximum distance of 860 m within the year of metamorphosis. Two out of four artificially constructed ponds were colonized naturally.
Keywords: population ecology, pond fidelity, dispersal, colonization, Triturus cristatus
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