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High aquatic niche overlap in the newts Triturus cristatus and T. marmoratus (Amphibia, Urodela)

Jehle, R, Bouma, P, Sztatecsny, M and Arntzen, JW 2000, 'High aquatic niche overlap in the newts Triturus cristatus and T. marmoratus (Amphibia, Urodela)' , Hydrobiologia, 437 , pp. 149-155.

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We studied spatial niche metrics of large-bodied newts (Triturus cristatus and T. marmoratus) in three breeding ponds in western France. Adults and larvae were sampled with underwater funnel traps. Larvae were identified to the species with diagnostic microsatellite DNA markers. The distribution of adult T. cristatus and T. marmoratus across pond regions differed in one out of six cases, no differences were observed between larvae (two ponds studied). Niche overlap and niche breadth indices across resource states defined as pond regions or individual traps were high (Schoener’s C: pond regions 0.60–0.98, traps 0.35–0.71; Levins’ B: pond regions 0.71–0.98, traps 0.35–0.76). Adults of large-bodied newts significantly differed in resource use from small-bodied newts (T. helveticus). The results are discussed in view of the occurrence of interspecific breeding attempts, and the unpredictable ecological characteristics of newt breeding ponds.

Item Type: Article
Uncontrolled Keywords: aquatic niche overlap, microsatellites, newts, Triturus cristatus, Triturus marmoratus
Themes: Subjects / Themes > Q Science > QL Zoology
Subjects / Themes > Q Science > QH Natural history > QH301 Biology
Subjects outside of the University Themes
Schools: Schools > School of Environment and Life Sciences
Schools > School of Environment and Life Sciences > Ecosystems and Environment Research Centre
Journal or Publication Title: Hydrobiologia
Publisher: Springer Verlag
Refereed: Yes
ISSN: 0018-8158
Depositing User: Users 29196 not found.
Date Deposited: 30 Oct 2009 14:54
Last Modified: 01 Dec 2015 00:04

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