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Are streamside buffers edge-affected habitat for ground-dwelling forest beetle assemblages?


Baker, S and Barmuta, L and Grove, S and Richardson, A, Are streamside buffers edge-affected habitat for ground-dwelling forest beetle assemblages? , Biodiversity and Conservation, 18, (13) pp. 3467-3482. ISSN 0960-3115 (2009) [Refereed Article]

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DOI: doi:10.1007/s10531-009-9655-x


Reservation of forest in riparian buffers is common practice in commercial forestry areas worldwide, potentially providing valuable habitat for biodiversity dependent on mature forest. However, the habitat value of narrow reserve corridors can be compromised by edge effects. We investigated the habitat value of streamside buffers in wet eucalypt forest for ground-dwelling beetles in Tasmania, Australia. Beetles were collected with pitfall traps in five replicates of four habitats: unlogged corridors of mature forest in streamside reserves (buffers) with clearfelling-derived logging regeneration either side; continuous mature upslope forest; continuous mature riparian forest; and <20-year-old upslope clearfelling-derived logging regeneration. Streamside reserve widths on each side of the stream were on average 40 6 m (95% CI) from reserve edge to stream. Beetle assemblages in logging regeneration differed substantially from those in the unlogged habitats, including the streamside reserves. Streamside reserve assemblages nevertheless differed from those of the continuous unlogged areas. Assemblage composition in streamside reserves was most similar to that in continuous mature riparian forest, although beetle diversity was higher in the reserves. Our results suggest that although streamside reserves provide habitat for the majority of commonly collected beetle species occurring in continuous mature forest, wider reserve corridors in the wet eucalypt forests of Tasmania may be required to provide habitat that is not edge-affected.

Item Details

Item Type:Refereed Article
Keywords:Coleoptera, conservation, corridors, epigaeic, forest management, streamside reserves, wet eucalypt forest
Research Division:Biological Sciences
Research Group:Ecology
Research Field:Freshwater ecology
Objective Division:Environmental Management
Objective Group:Marine systems and management
Objective Field:Assessment and management of benthic marine ecosystems
UTAS Author:Baker, S (Dr Sue Baker)
UTAS Author:Barmuta, L (Associate Professor Leon Barmuta)
UTAS Author:Richardson, A (Associate Professor Alastair Richardson)
ID Code:62219
Year Published:2009
Web of Science® Times Cited:7
Deposited By:Zoology
Deposited On:2010-03-10
Last Modified:2015-02-06

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