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Metapopulation dynamics over 25 years of a beetle, Osmoderma eremita, inhabiting hollow oaks

Lindman, Ly and Larsson, Mattias and Mellbrand, Kajsa and Svensson, Glenn P. and Hedin, Jonas and Tranberg, Olov and Ranius, Thomas (2020). Metapopulation dynamics over 25 years of a beetle, Osmoderma eremita, inhabiting hollow oaks. Oecologia. 194 , 771-780
[Journal article]

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Abstract

Osmoderma eremita is a species of beetle that inhabits hollows in ancient trees, which is a habitat that has decreased significantly during the last century. In southeastern Sweden, we studied the metapopulation dynamics of this beetle over a 25 year period, using capture-mark-recapture. The metapopulation size had been rather stable over time, but in most of the individual trees there had been a positive or negative trend in population development. The probability of colonisation was higher in well-connected trees with characteristics reflecting earlier successional stages, and the probability of extinction higher in trees with larger diameter (i.e. in later successional stages), which is expected from a habitat-tracking metapopulation. The annual tree mortality and fall rates (1.1% and 0.4%, respectively) are lower than the colonisation and extinction rates (5-7%), indicating that some of the metapopulation dynamics are due to the habitat dynamics, but many colonisations and extinctions take place for other reasons, such as stochastic events in small populations. The studied metapopulation occurs in an area with a high density of hollow oaks and where the oak pastures are still managed by grazing. In stands with fewer than ten suitable trees, the long-term extinction risk may be considerable, since only a small proportion of all hollow trees harbours large populations, and the population size in trees may change considerably during a decade.

Authors/Creators:Lindman, Ly and Larsson, Mattias and Mellbrand, Kajsa and Svensson, Glenn P. and Hedin, Jonas and Tranberg, Olov and Ranius, Thomas
Title:Metapopulation dynamics over 25 years of a beetle, Osmoderma eremita, inhabiting hollow oaks
Year of publishing :2020
Volume:194
Page range:771-780
Number of Pages:10
ISSN:0029-8549
Language:English
Publication Type:Journal article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution 4.0
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 size, Long-term data, Capture-mark-recapture, Colonisation, Extinction
URN:NBN:urn:nbn:se:slu:epsilon-p-108970
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-108970
Additional ID:
Type of IDID
DOI10.1007/s00442-020-04794-7
Web of Science (WoS)000587267800002
ID Code:19688
Faculty:S - Faculty of Forest Sciences
LTV - Fakulteten för landskapsarkitektur, trädgårds- och växtproduktionsvetenskap
Department:(NL, NJ) > Dept. of Ecology
(S) > Dept. of Ecology

(LTJ, LTV) > Department of Plant Protection Biology
(S) > Dept. of Wildlife, Fish and Environmental Studies
Deposited By: SLUpub Connector
Deposited On:17 Dec 2020 17:03
Metadata Last Modified:15 Jan 2021 19:26

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