Opin vísindi

The Effects of Habitat Type and Volcanic Eruptions on the Breeding Demography of Icelandic Whimbrels Numenius phaeopus

Show simple item record

dc.contributor Háskóli Íslands
dc.contributor University of Iceland
dc.contributor.author Katrínardóttir, Borgný
dc.contributor.author Alves, Jose
dc.contributor.author Sigurjónsdóttir, Hrefna
dc.contributor.author Hersteinsson, Páll
dc.contributor.author Gunnarsson, Tomas Gretar
dc.date.accessioned 2017-02-24T09:51:32Z
dc.date.available 2017-02-24T09:51:32Z
dc.date.issued 2015-07-10
dc.identifier.citation Katrínardóttir B, Alves JA, Sigurjónsdóttir H, Hersteinsson P, Gunnarsson TG (2015) The Effects of Habitat Type and Volcanic Eruptions on the Breeding Demography of Icelandic Whimbrels Numenius phaeopus. PLoS ONE 10(7): e0131395. doi:10.1371/journal.pone.0131395
dc.identifier.issn 1932-6203
dc.identifier.uri https://hdl.handle.net/20.500.11815/196
dc.description.abstract Distinct preference of species for habitats is most often driven by long term differences in demographic rates between habitats. Estimating variation in those rates is key for developing successful conservation strategies. Stochastic events can interact with underlying variation in habitat quality in regulating demography but the opportunities to explore such interactions are rare. Whimbrels in Iceland show a strong preference for sparsely vegetated riverplains. Such habitats in Iceland face various threats, e.g., climate change, river regulation and spread of alien plant species. In this study we compared demographic parameters of breeding Whimbrels between riverplains and other habitats before, during and after volcanic eruption events to estimate the importance of the habitats for the species and the effect of ash deposit on breeding success. We found that an estimated minimum of 23% of the Icelandic population of Whimbrels and c. 10% of the world population of the species breed in riverplain habitats in Iceland. Whimbrels bred consistently at much higher densities in riverplain habitats than in other habitats and riverplains also had higher densities of pairs with fledglings although the proportion of successful breeders was similar between habitats. Predation by livestock may have had a considerable negative effect on breeding success on our study sites. Breeding was negatively affected by the volcanic activity, probably through the effects of ash on the invertebrate food supply, with breeding success being gradually worse closer to the eruption. Breeding success was equally affected by volcanism across habitats which differed in underlying habitat quality. This study gives an example of how populations can be regulated by factors which operate at different spatial scales, such as local variation in habitat quality and stochastic events which impact larger areas.
dc.description.sponsorship University of Iceland Research Fund, Icelandic Research Fund for Graduate Students, Palmi Jonsson‘s Conservation Fund
dc.format.extent 1-15
dc.language.iso en
dc.publisher Public Library of Science (PLoS)
dc.relation.ispartofseries Plos One;10(7)
dc.rights info:eu-repo/semantics/openAccess
dc.subject Biochemistry
dc.subject Genetics
dc.subject Molecular Biology
dc.subject Agricultural Sciences
dc.subject Biological Sciences
dc.subject Medicine
dc.subject Fuglalíf
dc.subject Spói
dc.subject Umhverfisáhrif
dc.subject Eldgos
dc.title The Effects of Habitat Type and Volcanic Eruptions on the Breeding Demography of Icelandic Whimbrels Numenius phaeopus
dc.type info:eu-repo/semantics/article
dc.description.version Peer Reviewed
dc.identifier.journal Plos One
dc.identifier.doi doi:10.1371/journal.pone.0131395
dc.contributor.department Líf- og umhverfisvísindadeild (HÍ)
dc.contributor.department Faculty of Life and Environmental Sciences (UI)
dc.contributor.department Rannsóknasetur Suðurlandi (HÍ)
dc.contributor.department Research Centre in South Iceland (UI)
dc.contributor.school Verkfræði- og náttúruvísindasvið (HÍ)
dc.contributor.school School of Engineering and Natural Sciences (UI)

Files in this item

This item appears in the following Collection(s)

Show simple item record