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Consistent scaling ...
Consistent scaling of inbreeding depression in space and time in a house sparrow metapopulation
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- Niskanen, Alina K. (author)
- Norwegian Univ Sci & Technol, Dept Biol, Ctr Biodivers Dynam, N-7491 Trondheim, Norway; Univ Oulu, Ecol & Genet Res Unit, Oulu 90014, Finland
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- Billing, Anna M. (author)
- Norwegian Univ Sci & Technol, Dept Biol, Ctr Biodivers Dynam, N-7491 Trondheim, Norway
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- Holand, Håkon (author)
- Norwegian Univ Sci & Technol, Dept Biol, Ctr Biodivers Dynam, N-7491 Trondheim, Norway
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- Hagen, Ingerid J. (author)
- Norwegian Univ Sci & Technol, Dept Biol, Ctr Biodivers Dynam, N-7491 Trondheim, Norway; Norwegian Inst Nat Res, Dept Aquat Biodivers, N-7485 Trondheim, Norway
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- Araya-Ajoy, Yimen G. (author)
- Norwegian Univ Sci & Technol, Dept Biol, Ctr Biodivers Dynam, N-7491 Trondheim, Norway
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- Husby, Arild, Associate Senior Lecturer (author)
- Uppsala universitet,Evolutionsbiologi,Norwegian Univ Sci & Technol, Dept Biol, Ctr Biodivers Dynam, N-7491 Trondheim, Norway
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- Rønning, Bernt (author)
- Norwegian Univ Sci & Technol, Dept Biol, Ctr Biodivers Dynam, N-7491 Trondheim, Norway
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- Myhre, Ane Marlene (author)
- Norwegian Univ Sci & Technol, Dept Biol, Ctr Biodivers Dynam, N-7491 Trondheim, Norway
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- Ranke, Peter Sjolte (author)
- Norwegian Univ Sci & Technol, Dept Biol, Ctr Biodivers Dynam, N-7491 Trondheim, Norway
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- Kvalnes, Thomas (author)
- Uppsala universitet,Evolutionsbiologi,Norwegian Univ Sci & Technol, Dept Biol, Ctr Biodivers Dynam, N-7491 Trondheim, Norway
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- Pärn, Henrik (author)
- Norwegian Univ Sci & Technol, Dept Biol, Ctr Biodivers Dynam, N-7491 Trondheim, Norway
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- Ringsby, Thor Harald (author)
- Norwegian Univ Sci & Technol, Dept Biol, Ctr Biodivers Dynam, N-7491 Trondheim, Norway
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- Lien, Sigbjørn (author)
- Norwegian Univ Life Sci, Dept Anim & Aquacultural Sci, Ctr Integrat Genet, N-1433 As, Norway
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- Sæther, Bernt-Erik (author)
- Norwegian Univ Sci & Technol, Dept Biol, Ctr Biodivers Dynam, N-7491 Trondheim, Norway
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- Muff, Stefanie (author)
- Norwegian Univ Sci & Technol, Dept Math Sci, Ctr Biodivers Dynam, N-7491 Trondheim, Norway
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- Jensen, Henrik (author)
- Norwegian Univ Sci & Technol, Dept Biol, Ctr Biodivers Dynam, N-7491 Trondheim, Norway
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(creator_code:org_t)
- 2020-06-08
- 2020
- English.
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In: Proceedings of the National Academy of Sciences of the United States of America. - : Proceedings of the National Academy of Sciences. - 0027-8424 .- 1091-6490. ; 117:25, s. 14584-14592
- Related links:
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https://www.pnas.org...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- Inbreeding may increase the extinction risk of small populations. Yet, studies using modern genomic tools to investigate inbreeding depression in nature have been limited to single populations, and little is known about the dynamics of inbreeding depression in subdivided populations over time. Natural populations often experience different environmental conditions and differ in demographic history and genetic composition, characteristics that can affect the severity of inbreeding depression. We utilized extensive long-term data on more than 3,100 individuals from eight islands in an insular house sparrow metapopulation to examine the generality of inbreeding effects. Using genomic estimates of realized inbreeding, we discovered that inbred individuals had lower survival probabilities and produced fewer recruiting offspring than noninbred individuals. Inbreeding depression, measured as the decline in fitness-related traits per unit inbreeding, did not vary appreciably among populations or with time. As a consequence, populations with more resident inbreeding (due to their demographic history) paid a higher total fitness cost, evidenced by a larger variance in fitness explained by inbreeding within these populations. Our results are in contrast to the idea that effects of inbreeding generally depend on ecological factors and genetic differences among populations, and expand the understanding of inbreeding depression in natural subdivided populations.
Subject headings
- NATURVETENSKAP -- Biologi -- Evolutionsbiologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Evolutionary Biology (hsv//eng)
Keyword
- inbreeding depression
- individual fitness
- house sparrow
- metapopulation
- SNP pedigree
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Niskanen, Alina ...
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Billing, Anna M.
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Holand, Håkon
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Hagen, Ingerid J ...
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Araya-Ajoy, Yime ...
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Husby, Arild, As ...
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show more...
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Rønning, Bernt
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Myhre, Ane Marle ...
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Ranke, Peter Sjo ...
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Kvalnes, Thomas
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Pärn, Henrik
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Ringsby, Thor Ha ...
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Lien, Sigbjørn
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Sæther, Bernt-Er ...
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Muff, Stefanie
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Jensen, Henrik
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Evolutionary Bio ...
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Uppsala University