Are gastrointestinal parasites associated with the cyclic population dynamics of their arctic lemming hosts?
Many rodents, including most populations of arctic lemmings (genus Dicrostonyx and Lemmus), have cyclic population dynamics. Among the numerous hypotheses which have been proposed and tested to explain this typical characteristic of some terrestrial vertebrate communities, trophic interactions have...
Published in: | International Journal for Parasitology: Parasites and Wildlife |
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Main Authors: | , , , , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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2019
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Online Access: | https://pure.au.dk/portal/en/publications/b90b6244-e8f0-4f82-a3f9-2fbd8dd18efa https://doi.org/10.1016/j.ijppaw.2019.06.011 https://pure.au.dk/ws/files/209931645/1_s2.0_S2213224419300744_main.pdf http://www.scopus.com/inward/record.url?scp=85068257631&partnerID=8YFLogxK http://www.sciencedirect.com/science/article/pii/S2213224419300744 |
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ftuniaarhuspubl:oai:pure.atira.dk:publications/b90b6244-e8f0-4f82-a3f9-2fbd8dd18efa 2024-02-11T09:59:40+01:00 Are gastrointestinal parasites associated with the cyclic population dynamics of their arctic lemming hosts? Gilg, Olivier Bollache, Loïc Afonso, Eve Yannic, Glenn Schmidt, Niels Martin Hansen, Lars Holst Hansen, Jannik Sittler, Benoît Lang, Johannes Meyer, Nicolas Sabard, Brigitte Gilg, Vladimir Lang, Anita Lebbar, Mathilde Haukisalmi, Voitto Henttonen, Heikki Moreau, Jérôme 2019 application/pdf https://pure.au.dk/portal/en/publications/b90b6244-e8f0-4f82-a3f9-2fbd8dd18efa https://doi.org/10.1016/j.ijppaw.2019.06.011 https://pure.au.dk/ws/files/209931645/1_s2.0_S2213224419300744_main.pdf http://www.scopus.com/inward/record.url?scp=85068257631&partnerID=8YFLogxK http://www.sciencedirect.com/science/article/pii/S2213224419300744 eng eng https://pure.au.dk/portal/en/publications/b90b6244-e8f0-4f82-a3f9-2fbd8dd18efa info:eu-repo/semantics/openAccess Gilg , O , Bollache , L , Afonso , E , Yannic , G , Schmidt , N M , Hansen , L H , Hansen , J , Sittler , B , Lang , J , Meyer , N , Sabard , B , Gilg , V , Lang , A , Lebbar , M , Haukisalmi , V , Henttonen , H & Moreau , J 2019 , ' Are gastrointestinal parasites associated with the cyclic population dynamics of their arctic lemming hosts? ' , International Journal for Parasitology: Parasites and Wildlife , vol. 10 , pp. 6-12 . https://doi.org/10.1016/j.ijppaw.2019.06.011 Eimerians Cestodes Population dynamics Faecal prevalence Greenland Rodent-parasites interactions article 2019 ftuniaarhuspubl https://doi.org/10.1016/j.ijppaw.2019.06.011 2024-01-18T00:00:10Z Many rodents, including most populations of arctic lemmings (genus Dicrostonyx and Lemmus), have cyclic population dynamics. Among the numerous hypotheses which have been proposed and tested to explain this typical characteristic of some terrestrial vertebrate communities, trophic interactions have often been presented as the most likely drivers of these periodic fluctuations. The possible role of parasites has, however, only seldom been assessed. In this study, we genetically measured the prevalence of two endoparasite taxa, eimerians and cestodes, in 372 faecal samples from collared lemmings, over a five year period and across three distant sites in Northeast Greenland. Prevalence of cestodes was low (2.7% over all sites and years) and this taxon was only found at one site (although in 4 out of 5 years) in adult hosts. By contrast, we found high prevalence for eimerians (77.7% over all sites and years), which occurred at all sites, in every year, for both age classes (at the Hochstetter Forland site where both adult and juvenile faeces were collected) and regardless of reproductive and social status inferred from the characteristics of the lemming nests where the samples had been collected. Prevalence of eimerians significantly varied among years (not among sites) and was higher for juvenile than for adult lemmings at the Hochstetter Forland site. However, higher prevalence of eimerians (Pt) was only associated with lower lemming density (Nt) at one of the three sites and we found no delayed density dependence between Nt and Pt+1 to support the parasite hypothesis. Our results show that there is no clear relation between lemming density and eimerian faecal prevalence in Northeast Greenland and hence no evidence that eimerians could be driving the cyclic population dynamics of collared lemmings in this region. Article in Journal/Newspaper Arctic Arctic Lemming Arctic Greenland Aarhus University: Research Arctic Greenland Hochstetter Forland ENVELOPE(-20.500,-20.500,75.617,75.617) International Journal for Parasitology: Parasites and Wildlife 10 6 12 |
institution |
Open Polar |
collection |
Aarhus University: Research |
op_collection_id |
ftuniaarhuspubl |
language |
English |
topic |
Eimerians Cestodes Population dynamics Faecal prevalence Greenland Rodent-parasites interactions |
spellingShingle |
Eimerians Cestodes Population dynamics Faecal prevalence Greenland Rodent-parasites interactions Gilg, Olivier Bollache, Loïc Afonso, Eve Yannic, Glenn Schmidt, Niels Martin Hansen, Lars Holst Hansen, Jannik Sittler, Benoît Lang, Johannes Meyer, Nicolas Sabard, Brigitte Gilg, Vladimir Lang, Anita Lebbar, Mathilde Haukisalmi, Voitto Henttonen, Heikki Moreau, Jérôme Are gastrointestinal parasites associated with the cyclic population dynamics of their arctic lemming hosts? |
topic_facet |
Eimerians Cestodes Population dynamics Faecal prevalence Greenland Rodent-parasites interactions |
description |
Many rodents, including most populations of arctic lemmings (genus Dicrostonyx and Lemmus), have cyclic population dynamics. Among the numerous hypotheses which have been proposed and tested to explain this typical characteristic of some terrestrial vertebrate communities, trophic interactions have often been presented as the most likely drivers of these periodic fluctuations. The possible role of parasites has, however, only seldom been assessed. In this study, we genetically measured the prevalence of two endoparasite taxa, eimerians and cestodes, in 372 faecal samples from collared lemmings, over a five year period and across three distant sites in Northeast Greenland. Prevalence of cestodes was low (2.7% over all sites and years) and this taxon was only found at one site (although in 4 out of 5 years) in adult hosts. By contrast, we found high prevalence for eimerians (77.7% over all sites and years), which occurred at all sites, in every year, for both age classes (at the Hochstetter Forland site where both adult and juvenile faeces were collected) and regardless of reproductive and social status inferred from the characteristics of the lemming nests where the samples had been collected. Prevalence of eimerians significantly varied among years (not among sites) and was higher for juvenile than for adult lemmings at the Hochstetter Forland site. However, higher prevalence of eimerians (Pt) was only associated with lower lemming density (Nt) at one of the three sites and we found no delayed density dependence between Nt and Pt+1 to support the parasite hypothesis. Our results show that there is no clear relation between lemming density and eimerian faecal prevalence in Northeast Greenland and hence no evidence that eimerians could be driving the cyclic population dynamics of collared lemmings in this region. |
format |
Article in Journal/Newspaper |
author |
Gilg, Olivier Bollache, Loïc Afonso, Eve Yannic, Glenn Schmidt, Niels Martin Hansen, Lars Holst Hansen, Jannik Sittler, Benoît Lang, Johannes Meyer, Nicolas Sabard, Brigitte Gilg, Vladimir Lang, Anita Lebbar, Mathilde Haukisalmi, Voitto Henttonen, Heikki Moreau, Jérôme |
author_facet |
Gilg, Olivier Bollache, Loïc Afonso, Eve Yannic, Glenn Schmidt, Niels Martin Hansen, Lars Holst Hansen, Jannik Sittler, Benoît Lang, Johannes Meyer, Nicolas Sabard, Brigitte Gilg, Vladimir Lang, Anita Lebbar, Mathilde Haukisalmi, Voitto Henttonen, Heikki Moreau, Jérôme |
author_sort |
Gilg, Olivier |
title |
Are gastrointestinal parasites associated with the cyclic population dynamics of their arctic lemming hosts? |
title_short |
Are gastrointestinal parasites associated with the cyclic population dynamics of their arctic lemming hosts? |
title_full |
Are gastrointestinal parasites associated with the cyclic population dynamics of their arctic lemming hosts? |
title_fullStr |
Are gastrointestinal parasites associated with the cyclic population dynamics of their arctic lemming hosts? |
title_full_unstemmed |
Are gastrointestinal parasites associated with the cyclic population dynamics of their arctic lemming hosts? |
title_sort |
are gastrointestinal parasites associated with the cyclic population dynamics of their arctic lemming hosts? |
publishDate |
2019 |
url |
https://pure.au.dk/portal/en/publications/b90b6244-e8f0-4f82-a3f9-2fbd8dd18efa https://doi.org/10.1016/j.ijppaw.2019.06.011 https://pure.au.dk/ws/files/209931645/1_s2.0_S2213224419300744_main.pdf http://www.scopus.com/inward/record.url?scp=85068257631&partnerID=8YFLogxK http://www.sciencedirect.com/science/article/pii/S2213224419300744 |
long_lat |
ENVELOPE(-20.500,-20.500,75.617,75.617) |
geographic |
Arctic Greenland Hochstetter Forland |
geographic_facet |
Arctic Greenland Hochstetter Forland |
genre |
Arctic Arctic Lemming Arctic Greenland |
genre_facet |
Arctic Arctic Lemming Arctic Greenland |
op_source |
Gilg , O , Bollache , L , Afonso , E , Yannic , G , Schmidt , N M , Hansen , L H , Hansen , J , Sittler , B , Lang , J , Meyer , N , Sabard , B , Gilg , V , Lang , A , Lebbar , M , Haukisalmi , V , Henttonen , H & Moreau , J 2019 , ' Are gastrointestinal parasites associated with the cyclic population dynamics of their arctic lemming hosts? ' , International Journal for Parasitology: Parasites and Wildlife , vol. 10 , pp. 6-12 . https://doi.org/10.1016/j.ijppaw.2019.06.011 |
op_relation |
https://pure.au.dk/portal/en/publications/b90b6244-e8f0-4f82-a3f9-2fbd8dd18efa |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1016/j.ijppaw.2019.06.011 |
container_title |
International Journal for Parasitology: Parasites and Wildlife |
container_volume |
10 |
container_start_page |
6 |
op_container_end_page |
12 |
_version_ |
1790595464347779072 |