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Restricted dispersal in a flying beetle assessed by telemetry

Hedin, Jonas and Ranius, Thomas and Nilsson, Sven G. and Smith, Henrik G. (2008). Restricted dispersal in a flying beetle assessed by telemetry. Biodiversity and conservation. 17:3, 675-684
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Abstract

Many insects living in ancient trees are assumed to be threatened as a result of habitat loss and fragmentation. It is generally expected that species in habitats with low temporal variability in carrying capacity have lower degree of dispersal in comparison to those in more ephemeral habitats. As hollow trees are long-lived, species in that habitat are expected to be sensitive to habitat fragmentation, due to a low capacity to establish new populations far from present ones. Using radio telemetry, we studied the dispersal for a beetle, Osmoderma eremita, living in hollow trees. O. eremita exhibited philopatry and only dispersed over short ranges. 82-88 % of the adults remained in the tree where they were caught. All observed dispersal movements ended up in nearby hollow trees and 62 % in the neighbouring hollow tree. These results corroborate the suggestion that habitat fragmentation may be detrimental to insects living in temporally stable but spatially variable habitats. In order to preserve such species, we propose that conservation efforts should be focused on maintaining or increasing the number of suitable trees in and near presently occupied stands.

Authors/Creators:Hedin, Jonas and Ranius, Thomas and Nilsson, Sven G. and Smith, Henrik G.
Title:Restricted dispersal in a flying beetle assessed by telemetry
Series/Journal:Biodiversity and conservation (0960-3115)
Year of publishing :2008
Volume:17
Number:3
Page range:675-684
Publisher:Springer-Verlag
ISSN:0960-3115
Language:English
Additional Information:The original publication is available at www.springerlink.com
Publication Type:Journal article
Refereed:Yes
Article category:Scientific peer reviewed
Version:Accepted version
Full Text Status:Public
Subjects:Obsolete subject words > NATURAL SCIENCES > Biology > Terrestrial, freshwater and marine ecology > Terrestrial ecology
Keywords:telemetric, dispersal rate, Osmoderma eremita
URN:NBN:urn:nbn:se:slu:epsilon-e-26
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-e-26
ID Code:8040
Department:(NL, NJ) > Dept. of Ecology
(S) > Dept. of Ecology
Deposited By: Thomas Ranius
Deposited On:08 Apr 2011 14:40
Metadata Last Modified:02 Dec 2014 10:45

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