Kin encounter rate and inbreeding avoidance in canids

@article{Geffen2011KinER,
  title={Kin encounter rate and inbreeding avoidance in canids},
  author={Eli Geffen and Michael Kam and Reuven Hefner and P{\'a}ll Hersteinsson and Anders Angerbj{\"o}rn and Love Dal{\'e}n and Eva Fuglei and Karin Nor{\'e}n and Jennifer R Adams and John A. Vucetich and Thomas J. Meier and L. David Mech and Bridgett M. vonHoldt and Daniel R. Stahler and Robert K. Wayne},
  journal={Molecular Ecology},
  year={2011},
  volume={20}
}
Mating with close kin can lead to inbreeding depression through the expression of recessive deleterious alleles and loss of heterozygosity. Mate selection may be affected by kin encounter rate, and inbreeding avoidance may not be uniform but associated with age and social system. Specifically, selection for kin recognition and inbreeding avoidance may be more developed in species that live in family groups or breed cooperatively. To test this hypothesis, we compared kin encounter rate and the… 

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References

SHOWING 1-10 OF 69 REFERENCES

Why some species of birds do not avoid inbreeding: insights from New Zealand robins and saddlebacks

It is concluded that random mating normally results in such low rates of close inbreeding that it exerts negligible selection pressure to evolve kin recognition, and many threatened species are unlikely to have a natural "built-in" mechanism for avoiding close in breeding.

No evidence for inbreeding avoidance in a great reed warbler population

It is suggested that dispersal is a sufficient inbreeding avoidance mechanism in most situations, although the lack of kin discriminative mate choice has negative consequences for some females, because they end up mating with closely related males that lowers their fitness.

Inbreeding avoidance under different null models of random mating in the great tit.

The results imply the existence of spatial genetic structure where related individuals occur closer together than nonrelated individuals while breeding, and suggest that the relatedness between breeding individuals of the opposite sex decreases with distance, while dispersal from the natal site decreases the number of relatives around an individual, it does not completely homogenize genetic structure.

Optimal level of inbreeding in the common lizard

Dynamic mate choice is indicated, suggesting that individuals of different phenotypes select their partners in different ways according to their genetic similarity, and particularly, optimal inbreeding and inclusive fitness.

No evidence of inbreeding avoidance in a polygynous ungulate: the reindeer (Rangifer tarandus)

It is concluded that inbreeding avoidance through mating group choice as well as choice of mating partner, two interconnected processes of female mate choice operating at two different scales in space and time, in such a highly female-biased reindeer populations with low level of inbreeding may not occur.

Inbreeding effects in wild populations.

Severe inbreeding depression in a wild wolf Canis lupus population

In a small, naturally restored, wild population of grey wolves in Scandinavia, founded in 1983, a pedigree for 24 of the 28 breeding pairs established in the period 1983–2002 is constructed, corresponding to 6.04 litter-size-reducing equivalents in this wolf population.

The Genetic Basis of Inbreeding Avoidance in House Mice

Between a rock and a hard place: evaluating the relative risks of inbreeding and outbreeding for conservation and management

Managers can minimize the risks of both inbreeding and outbreeding by using intentional hybridization only for populations clearly suffering from inbreeding depression, maximizing the genetic and adaptive similarity between populations, and testing the effects of hybridization for at least two generations whenever possible.

Size, Life-History Traits, and Social Organization in the Canidae: A Reevaluation

It is hypothesized that much of canid interspecific and intraspecific variation in social structure may be explained by focusing on proximate enivironmental mechanisms, specifically resource avail- ability.
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