Genetic structure of recently fragmented suburban populations of European stag beetle
Abstract Habitat loss and fragmentation due to urbanization can negatively affect metapopulation persistence when gene flow among populations is reduced and population sizes decrease. Inference of patterns and processes of population connectivity derived from spatial genetic analysis has proven inva...
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Online Access: | https://doi.org/10.1002/ece3.6858 |
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doaj-ff2e9994cf734cb6b71a5cbd8983c9842021-04-02T18:22:37ZengWileyEcology and Evolution2045-77582020-11-011021122901230610.1002/ece3.6858Genetic structure of recently fragmented suburban populations of European stag beetleKaren Cox0Niall McKeown1An Vanden Broeck2An Van Breusegem3Roger Cammaerts4Arno Thomaes5Research Institute for Nature and Forest (INBO) Geraardsbergen BelgiumInstitute of Biological, Environmental and Rural Sciences (IBERS) Aberystwyth University Aberystwyth UKResearch Institute for Nature and Forest (INBO) Geraardsbergen BelgiumResearch Institute for Nature and Forest (INBO) Geraardsbergen BelgiumRetired from the Natural and Agricultural Environment Studies Department (DEMNA) Public Service of Wallonia Gembloux BelgiumResearch Institute for Nature and Forest (INBO) Brussels BelgiumAbstract Habitat loss and fragmentation due to urbanization can negatively affect metapopulation persistence when gene flow among populations is reduced and population sizes decrease. Inference of patterns and processes of population connectivity derived from spatial genetic analysis has proven invaluable for conservation and management. However, a more complete account of population dynamics may be obtained by combining spatial and temporal sampling. We, therefore, performed a genetic study on European stag beetle (Lucanus cervus L.) populations in a suburban context using samples collected in three locations and during the period 2002–2016. The sampling area has seen recent landscape changes which resulted in population declines. Through the use of a suite of FST, clustering analysis, individual assignment, and relatedness analysis, we assessed fine scale spatiotemporal genetic variation within and among habitat patches using 283 individuals successfully genotyped at 17 microsatellites. Our findings suggested the three locations to hold demographically independent populations, at least over time scales of relevance to conservation, though with higher levels of gene flow in the past. Contrary to expectation from tagging studies, dispersal appeared to be mainly female‐biased. Although the life cycle of stag beetle suggests its generations to be discrete, no clear temporal structure was identified, which could be attributed to the varying duration of larval development. Since population bottlenecks were detected and estimates of effective number of breeders were low, conservation actions are eminent which should include the establishment of suitable dead wood for oviposition on both local and regional scales to increase (re)colonization success and connectivity among current populations.https://doi.org/10.1002/ece3.6858bottleneckconnectivityland use changeLucanus cervussex‐biased dispersalsuburban populations |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Karen Cox Niall McKeown An Vanden Broeck An Van Breusegem Roger Cammaerts Arno Thomaes |
spellingShingle |
Karen Cox Niall McKeown An Vanden Broeck An Van Breusegem Roger Cammaerts Arno Thomaes Genetic structure of recently fragmented suburban populations of European stag beetle Ecology and Evolution bottleneck connectivity land use change Lucanus cervus sex‐biased dispersal suburban populations |
author_facet |
Karen Cox Niall McKeown An Vanden Broeck An Van Breusegem Roger Cammaerts Arno Thomaes |
author_sort |
Karen Cox |
title |
Genetic structure of recently fragmented suburban populations of European stag beetle |
title_short |
Genetic structure of recently fragmented suburban populations of European stag beetle |
title_full |
Genetic structure of recently fragmented suburban populations of European stag beetle |
title_fullStr |
Genetic structure of recently fragmented suburban populations of European stag beetle |
title_full_unstemmed |
Genetic structure of recently fragmented suburban populations of European stag beetle |
title_sort |
genetic structure of recently fragmented suburban populations of european stag beetle |
publisher |
Wiley |
series |
Ecology and Evolution |
issn |
2045-7758 |
publishDate |
2020-11-01 |
description |
Abstract Habitat loss and fragmentation due to urbanization can negatively affect metapopulation persistence when gene flow among populations is reduced and population sizes decrease. Inference of patterns and processes of population connectivity derived from spatial genetic analysis has proven invaluable for conservation and management. However, a more complete account of population dynamics may be obtained by combining spatial and temporal sampling. We, therefore, performed a genetic study on European stag beetle (Lucanus cervus L.) populations in a suburban context using samples collected in three locations and during the period 2002–2016. The sampling area has seen recent landscape changes which resulted in population declines. Through the use of a suite of FST, clustering analysis, individual assignment, and relatedness analysis, we assessed fine scale spatiotemporal genetic variation within and among habitat patches using 283 individuals successfully genotyped at 17 microsatellites. Our findings suggested the three locations to hold demographically independent populations, at least over time scales of relevance to conservation, though with higher levels of gene flow in the past. Contrary to expectation from tagging studies, dispersal appeared to be mainly female‐biased. Although the life cycle of stag beetle suggests its generations to be discrete, no clear temporal structure was identified, which could be attributed to the varying duration of larval development. Since population bottlenecks were detected and estimates of effective number of breeders were low, conservation actions are eminent which should include the establishment of suitable dead wood for oviposition on both local and regional scales to increase (re)colonization success and connectivity among current populations. |
topic |
bottleneck connectivity land use change Lucanus cervus sex‐biased dispersal suburban populations |
url |
https://doi.org/10.1002/ece3.6858 |
work_keys_str_mv |
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1721551847266713600 |