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Demographic inference from whole genome and RAD sequencing data suggests alternating human impacts on goose populations since the Last Ice Age.

https://arctichealth.org/en/permalink/ahliterature285898
Source
Mol Ecol. 2017 Oct 05;
Publication Type
Article
Date
Oct-05-2017
Author
J M Pujolar
L. Dalén
M M Hansen
J. Madsen
Source
Mol Ecol. 2017 Oct 05;
Date
Oct-05-2017
Language
English
Publication Type
Article
Abstract
We investigated how population changes and fluctuations in the pink-footed goose might have been affected by climatic and anthropogenic factors. First, genomic data confirmed the existence of two separate populations: western (Iceland) and eastern (Svalbard/Denmark). Second, demographic inference suggests that the species survived the last glacial period as a single ancestral population with a low population size (100-1,000 individuals) that split into the current populations at the end of the Last Glacial Maximum with Iceland being the most plausible glacial refuge. While population changes during the last glaciation were clearly environmental, we hypothesize that more recent demographic changes are human-related: (1) the inferred population increase in the Neolithic is due to deforestation to establish new lands for agriculture, increasing available habitat for pink-footed geese (2) the decline inferred during the Middle Ages is due to human persecution and (3) improved protection explains the increasing demographic trends during the 20th century. Our results suggest both environmental (during glacial cycles) and anthropogenic effects (more recent) can be a threat to species survival. This article is protected by copyright. All rights reserved.
PubMed ID
28980346 View in PubMed
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Demographic inference from whole-genome and RAD sequencing data suggests alternating human impacts on goose populations since the last ice age.

https://arctichealth.org/en/permalink/ahliterature289902
Source
Mol Ecol. 2017 Nov; 26(22):6270-6283
Publication Type
Journal Article
Date
Nov-2017
Author
J M Pujolar
L Dalén
M M Hansen
J Madsen
Author Affiliation
Department of Bioscience, Aarhus University, Aarhus C, Denmark.
Source
Mol Ecol. 2017 Nov; 26(22):6270-6283
Date
Nov-2017
Language
English
Publication Type
Journal Article
Keywords
Agriculture
Animals
Conservation of Natural Resources
Denmark
Ecosystem
Geese - genetics
Genetics, Population
Human Activities
Humans
Iceland
Polymorphism, Single Nucleotide
Population Density
Population Dynamics
Svalbard
Abstract
We investigated how population changes and fluctuations in the pink-footed goose might have been affected by climatic and anthropogenic factors. First, genomic data confirmed the existence of two separate populations: western (Iceland) and eastern (Svalbard/Denmark). Second, demographic inference suggests that the species survived the last glacial period as a single ancestral population with a low population size (100-1,000 individuals) that split into the current populations at the end of the last glacial maximum with Iceland being the most plausible glacial refuge. While population changes during the last glaciation were clearly environmental, we hypothesize that more recent demographic changes are human-related: (1) the inferred population increase in the Neolithic is due to deforestation to establish new lands for agriculture, increasing available habitat for pink-footed geese, (2) the decline inferred during the Middle Ages is due to human persecution, and (3) improved protection explains the increasing demographic trends during the 20th century. Our results suggest both environmental (during glacial cycles) and anthropogenic effects (more recent) can be a threat to species survival.
PubMed ID
28980346 View in PubMed
Less detail