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The use of historical collections to estimate population trends: a case study using Swedish longhorn beetles (Coleoptera: Cerambycidae)

Jeppsson, Tobias and Lindhe, Anders and Gärdenfors, Ulf and Forslund, Pär (2010). The use of historical collections to estimate population trends: a case study using Swedish longhorn beetles (Coleoptera: Cerambycidae). Biological conservation. 143:9, 1940-1950
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Official URL: http://dx.doi.org/10.1016/j.biocon.2010.04.015

Abstract

Long term data to estimate population trends among species are generally lacking. However, Natural History Collections (NHCs) can provide such information, but may suffer from biases due to varying sampling effort. To analyze population trends and range-abundance dynamics of Swedish longhorn beetles (Coleoptera: Cerambycidae), we used collections of 108 species stretching over 100 years. We controlled for varying sampling effort by using the total number of database records as a reference for non-red-listed species. Because the general frequency of red-listed species increased over time, a separate estimate of sampling effort was used for that group. We observed large interspecific variation in population changes, from declines of 60\% to several hundred percent increases. Most species showed stable or increasing ranges, whereas few seemed to decline in range. Among increasing species, rare species seemed to expand their range more than common species did, but this pattern was not observed in declining species. Historically, rare species did not seem to be at larger risk of local extinction, and population declines were mostly due to lower population density and not loss of sub-populations. We also evaluated the species' declines under IUCN red-list criterion A, and four currently not red-listed species meet the suggested threshold for Near Threatened (NT). The results also suggested that species' declines may be overlooked if estimated only from changes in species range.

Authors/Creators:Jeppsson, Tobias and Lindhe, Anders and Gärdenfors, Ulf and Forslund, Pär
Title:The use of historical collections to estimate population trends: a case study using Swedish longhorn beetles (Coleoptera: Cerambycidae)
Series/Journal:Biological conservation (0006-3207)
Year of publishing :2010
Volume:143
Number:9
Page range:1940-1950
Publisher:Elsevier
ISSN:0006-3207
Language:English
Publication Type:Journal article
Refereed:Yes
Article category:Scientific peer reviewed
Version:Accepted version
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 1 Natural sciences > 106 Biological Sciences (Medical to be 3 and Agricultural to be 4) > Ecology
Keywords:Population trends , Natural history collection (NHC) , Range-abundance dynamics, IUCN Red list, Species conservation, Population dynamics, museum data, Coleoptera: Cerambycidae, Citizen science
URN:NBN:urn:nbn:se:slu:epsilon-e-385
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-e-385
ID Code:8661
Department:(NL, NJ) > Swedish Species Information Centre
(NL, NJ) > Dept. of Ecology
(S) > Dept. of Ecology
Deposited By: Tobias Jeppsson
Deposited On:27 Mar 2012 12:12
Metadata Last Modified:02 Dec 2014 10:49

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