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Measuring the dispersal of saproxylic insects : a key characteristic for their conservation

Ranius, Thomas (2006). Measuring the dispersal of saproxylic insects : a key characteristic for their conservation. Population ecology. 48:3, 177-188
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Official URL: http://www.springerlink.com/content/n8881101022307...

Abstract

In nature conservation it is important to understand under which circumstances populations can survive by compensating local extinctions with colonisations. Many saproxylic (= wood-dwelling) insect species have declining populations and are regarded as threatened due to low habitat availability in managed forests. Several methods have been used to better understand the dispersal biology and colonisation ability of saproxylic insects with declining populations. In this paper, I summarize and compare the results of such studies. When the same species have been studied using several methods, the results are consistent, but different aspects of dispersal biology are revealed with different methods. Capture-recapture and telemetry are direct methods that can be used to quantify dispersal rate and range in the field. Studies of genetic structure and occupancy patterns are complementary, as they reveal the consequences of dispersals that have taken place over a larger spatial and temporal scale than is possible to study with direct methods. Because colonisation, rather than dispersal, is most important for population persistence, colonisation experiments provide useful information. To obtain information relevant for conservation work dispersal studies should be conducted on model species that are representative of threatened species. Colonisation ability probability differs between common and rare species, and therefore it is important to also study dispersal of rare species, even if it is more difficult.

Authors/Creators:Ranius, Thomas
Title:Measuring the dispersal of saproxylic insects : a key characteristic for their conservation
Series/Journal:Population ecology
Year of publishing :2006
Volume:48
Number:3
Page range:177-188
Publisher:Springer-Verlag
ISSN:1438-390X
Language:English
Additional Information:The original publication is available at www.springerlink.com DOI: 10.1007/s10144-006-0262-3
Publication Type:Journal article
Refereed:Yes
Full Text Status:Public
Subjects:Obsolete subject words > FORESTRY, AGRICULTURAL SCIENCES and LANDSCAPE PLANNING
Obsolete subject words > NATURAL SCIENCES > Biology > Organism biology
Keywords:capture-recapture, colonisation, dead wood, Osmoderma eremita, telemetry, tethered flight
URN:NBN:urn:nbn:se:slu:epsilon-8-999
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-8-999
ID Code:5768
Department:(NL, NJ) > Dept. of Ecology
(S) > Dept. of Ecology
Deposited By: Thomas Ranius
Deposited On:07 Mar 2011 00:00
Metadata Last Modified:02 Dec 2014 10:43

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