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Site effects outweigh riparian influences on ground-dwelling beetles adjacent to first order streams in wet eucalypt forest

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Baker, SC, Richardson, AMM and Barmuta, LA 2007 , 'Site effects outweigh riparian influences on ground-dwelling beetles adjacent to first order streams in wet eucalypt forest' , Biodiversity and Conservation, vol. 16, no. 7 , pp. 1999-2014 , doi: 10.1007/s10531-006-9056-3.

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Abstract

In wet eucalypt forest with a rainforest understorey the vegetation
adjacent to first order streams does not form a distinct riparian strip. This study
investigated the riparian response of terrestrial ground-dwelling beetles adjacent to
four such streams in Tasmania, Australia. Beetle assemblages varied more between
the four sites than they did with distance from stream within sites, where they
exhibited a measurable but subtle riparian response. The extent of the riparian zone
varied between the four study sites, with a 1–5 m riparian zone at three sites and a
gradually changing community up to 50–100 m upslope at one site. There was a
trend for greater between plot variability immediately adjacent to the streams,
possibly because this is a more highly disturbed environment. None of the habitat
variables measured were consistently associated with riparian or upslope assemblages
of beetles, probably explaining the subtlety of the beetles’ riparian response.
Forest conservation efforts for terrestrial species should not necessarily be focused
on the riparian zone in preference to upslope areas.

Item Type: Article
Authors/Creators:Baker, SC and Richardson, AMM and Barmuta, LA
Keywords: Riparian zone width Æ Site effects Æ Upslope habitat Æ Headwater streams Æ Terrestrial beetles Æ Pitfall trapping
Journal or Publication Title: Biodiversity and Conservation
Publisher: Springer
ISSN: 0960-3115
DOI / ID Number: 10.1007/s10531-006-9056-3
Additional Information:

The original publication is available at www.springerlink.com

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