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Single nucleotide polymorphism-based dispersal estimates using noninvasive sampling

Norman, Anita and Spong, Göran (2015). Single nucleotide polymorphism-based dispersal estimates using noninvasive sampling. Ecology and evolution. 5 :15 , 3056-3065
[Research article]

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Official URL: http://dx.doi.org/10.1002/ece3.1588


Quantifying dispersal within wild populations is an important but challenging task. Here we present a method to estimate contemporary, individual-based dispersal distance from noninvasively collected samples using a specialized panel of 96 SNPs (single nucleotide polymorphisms). One main issue in conducting dispersal studies is the requirement for a high sampling resolution at a geographic scale appropriate for capturing the majority of dispersal events. In this study, fecal samples of brown bear (Ursus arctos) were collected by volunteer citizens, resulting in a high sampling resolution spanning over 45,000km(2) in Gavleborg and Dalarna counties in Sweden. SNP genotypes were obtained for unique individuals sampled (n=433) and subsequently used to reconstruct pedigrees. A Mantel test for isolation by distance suggests that the sampling scale was appropriate for females but not for males, which are known to disperse long distances. Euclidean distance was estimated between mother and offspring pairs identified through the reconstructed pedigrees. The mean dispersal distance was 12.9km (SE 3.2) and 33.8km (SE 6.8) for females and males, respectively. These results were significantly different (Wilcoxon's rank-sum test: P-value=0.02) and are in agreement with the previously identified pattern of male-biased dispersal. Our results illustrate the potential of using a combination of noninvasively collected samples at high resolution and specialized SNPs for pedigree-based dispersal models.

Authors/Creators:Norman, Anita and Spong, Göran
Title:Single nucleotide polymorphism-based dispersal estimates using noninvasive sampling
Series Name/Journal:Ecology and evolution
Year of publishing :2015
Depositing date:10 September 2015
Page range:3056-3065
Number of Pages:10
Publication Type:Research article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution 4.0
Full Text Status:Public
Agris subject categories.:L Animal production > L20 Animal ecology
Subjects:(A) Swedish standard research categories 2011 > 1 Natural sciences > 106 Biological Sciences (Medical to be 3 and Agricultural to be 4) > Ecology
(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 401 Agricultural, Forestry and Fisheries > Forest Science
Agrovoc terms:Carnivora, polymorphism, Ursidae, population dynamics
Keywords:Carnivore, citizen science, isolation-by-distance, natal dispersal, pedigree reconstruction, SNPs, Ursus arctos
Permanent URL:
Additional ID:
Type of IDID
Web of Science (WoS)000359427800006
Alternative URL:http://onlinelibrary.wiley.com/doi/10.1002/ece3.1588/abstract
ID Code:12710
Faculty:S - Faculty of Forest Sciences
Department:(S) > Dept. of Wildlife, Fish and Environmental Studies
Deposited By: SLUpub Connector
Deposited On:15 Oct 2015 11:02
Metadata Last Modified:09 Sep 2020 14:17

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