Consistent scaling of inbreeding depression in space and time in a house sparrow metapopulation.

ABSTRACT: 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 p

SUBMITTER: Niskanen AK 

PROVIDER: S-EPMC7322018 | biostudies-literature | 2020 Jun

REPOSITORIES: biostudies-literature