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Restricted dispersal in a flying beetle assessed by telemetry

Hedin, Jonas LU ; Ranius, Thomas LU ; Nilsson, Sven LU and Smith, Henrik LU (2008) In Biodiversity and Conservation 17(3). p.675-684
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. About 82-88% of the adults remained in the tree where they were caught. All observed... (More)
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. About 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. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
sedentary, tree hollow, transmitters, radio, Osmoderma eremita, dispersal distance, dispersal rate
in
Biodiversity and Conservation
volume
17
issue
3
pages
675 - 684
publisher
Springer
external identifiers
  • wos:000253198300015
  • scopus:43049181459
ISSN
0960-3115
DOI
10.1007/s10531-007-9299-7
language
English
LU publication?
yes
id
890c63fd-dc21-423d-8db6-36f5beff5060 (old id 1196979)
date added to LUP
2008-09-10 13:00:59
date last changed
2017-09-17 05:37:18
@article{890c63fd-dc21-423d-8db6-36f5beff5060,
  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. About 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.},
  author       = {Hedin, Jonas and Ranius, Thomas and Nilsson, Sven and Smith, Henrik},
  issn         = {0960-3115},
  keyword      = {sedentary,tree hollow,transmitters,radio,Osmoderma eremita,dispersal distance,dispersal rate},
  language     = {eng},
  number       = {3},
  pages        = {675--684},
  publisher    = {Springer},
  series       = {Biodiversity and Conservation},
  title        = {Restricted dispersal in a flying beetle assessed by telemetry},
  url          = {http://dx.doi.org/10.1007/s10531-007-9299-7},
  volume       = {17},
  year         = {2008},
}