• English
    • norsk
  • English 
    • English
    • norsk
  • Login
View Item 
  •   All institutions
  • Norges teknisk-naturvitenskapelige universitet
  • Publikasjoner fra CRIStin - NTNU
  • View Item
  •   All institutions
  • Norges teknisk-naturvitenskapelige universitet
  • Publikasjoner fra CRIStin - NTNU
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

Effects of population characteristics and structure on estimates of effective population size in a house sparrow metapopulation

Baalsrud, Helle Tessand; Sæther, Bernt-Erik; Hagen, Ingerid Julie; Myhre, Ane Marlene; Ringsby, Thor Harald; Pärn, Henrik; Jensen, Henrik
Journal article
Submitted version
Thumbnail
View/Open
BaalsrudEtAl-GeneticNe-SubmittedComplete-20140423.pdf (701.8Kb)
Permanent link
http://hdl.handle.net/11250/2462889
Issue date
2014
Share
Metadata
Show full item record
Collections
  • Publikasjoner fra CRIStin - NTNU [7622]
  • Institutt for biologi [965]
Original version
Molecular Ecology. 2014, 23 (11), 2653-2668.   10.1111/mec.12770
Abstract
Effective population size (Ne) is a key parameter to understand evolutionary processes and the viability of endangered populations as it determines the rate of genetic drift and inbreeding. Low Ne can lead to inbreeding depression and reduced population adaptability. In this study, we estimated contemporary Ne using genetic estimators (LDNE, ONeSAMP, MLNE and CoNe) as well as a demographic estimator in a natural insular house sparrow metapopulation. We investigated whether population characteristics (population size, sex ratio, immigration rate, variance in population size and population growth rate) explained variation within and among populations in the ratio of effective to census population size (Ne/Nc). In general, Ne/Nc ratios increased with immigration rates. Genetic Ne was much larger than demographic Ne, probably due to a greater effect of immigration on genetic than demographic processes in local populations. Moreover, although estimates of genetic Ne seemed to track Nc quite well, the genetic Ne-estimates were often larger than Nc within populations. Estimates of genetic Ne for the metapopulation were however within the expected range (
Publisher
Wiley
Journal
Molecular Ecology

Contact Us

Search NORA
Powered by DSpace software

Service from BIBSYS
 

 

Browse this CollectionIssue DateAuthorsTitlesSubjectsDocument TypesJournalsBrowse all ArchivesArchives & CollectionsIssue DateAuthorsTitlesSubjectsDocument TypesJournals

My Account

Login

Statistics

Google Analytics StatisticsView Usage Statistics

Contact Us

Search NORA
Powered by DSpace software

Service from BIBSYS