Rescue of a severely bottlenecked wolf (Canis lupus) population by a single immigrant

@article{Vil2003RescueOA,
  title={Rescue of a severely bottlenecked wolf (Canis lupus) population by a single immigrant},
  author={C. Vil{\`a} and A. Sundqvist and {\O}. Flagstad and J. Seddon and Susanne Bj{\"o} rnerfeldt and I. Kojola and A. Casulli and H. Sand and Petter Wabakken and H. Ellegren},
  journal={Proceedings of the Royal Society of London. Series B: Biological Sciences},
  year={2003},
  volume={270},
  pages={91 - 97}
}
The fragmentation of populations is an increasingly important problem in the conservation of endangered species. Under these conditions, rare migration events may have important effects for the rescue of small and inbred populations. However, the relevance of such migration events to genetically depauperate natural populations is not supported by empirical data. We show here that the genetic diversity of the severely bottlenecked and geographically isolated Scandinavian population of grey… Expand
Genetic rescue in an inbred Arctic fox (Vulpes lagopus) population
TLDR
This is one of few studies that has documented genetic rescue in a natural mammal population suffering from inbreeding depression and contributes to a growing body of data demonstrating the vital connection between genetics and individual fitness. Expand
Low Persistence of Genetic Rescue Across Generations in the Arctic Fox (Vulpes lagopus)
TLDR
Testing for long-term effects of natural genetic rescue in a small population of Scandinavian Arctic foxes found no evidence for elevated fitness in immigrant F2 and F3 compared to native inbred foxes, highlighting the complexity of genetic rescue and suggesting that beneficial effects can be brief. Expand
Genetic and Demographic Consequences of a Rapid Reduction in Population Size in a Solitary Lemur (Mirza coquereli)
TLDR
It is shown that populations of solitary mammals are able to compensate drastic local demographic changes via migration if habitat continuity at an appropriate scale is given, and a re-colonization of the demographic bottlenecked area took place. Expand
Genetics and conservation of wolves Canis lupus in Europe
TLDR
The wolf Canis lupus, the most widespread of the four species of large carnivores in Europe, after centuries of population decline and eradication, is now recovering in many countries, and population structure and dynamics are efficiently monitored by non-invasive genetic methods. Expand
Genetic rescue of an insular population of large mammals
TLDR
This is the first demonstration, to the authors' knowledge, of increased male and female fitness attributable to outbreeding realized in a fully competitive natural setting and suggests that genetic principles deserve broader recognition as practical management tools with near-term consequences for large-mammal conservation. Expand
Immigration as a possible rescue of a reduced population of a long-distant migratory bird: Reed warblers in the Azraq Oasis, Jordan
TLDR
The study shows how immigration may sustain the viability of fragmented populations of migratory birds after restoration of their former breeding habitat by inferring possible consequences of the population collapse on genetic diversity. Expand
CONSERVATION GENETICS OF ENCLOSED BLACK RHINOCEROS POPULATIONS IN KENYA
TLDR
The effects of active conservation management on levels of genetic diversity and historic population structure in the eastern black rhinoceros (Diceros bicornis michaeli) are examined and the relative influences of additive and non-additive effects on female mate choice in this actively managed conservation priority species are examined. Expand
Experimental test of genetic rescue in isolated populations of brook trout
TLDR
Results provide much‐needed experimental data to inform the potential effectiveness of genetic rescue‐motivated translocations and strong evidence of hybrid vigour was observed through significantly larger body sizes of hybrid offspring relative to resident offspring in all recipient populations. Expand
Genetics and extinction and the example of Isle Royale wolves
TLDR
It is shown here using a detailed pedigree and genomic data that genetic rescue in the gray wolf Canis lupus population on Isle Royale had only a temporary positive effect reducing inbreeding depression and then the genetic changes from the immigration event resulted in a population decline and now imminent extinction of the population. Expand
Population genomics of the inbred Scandinavian wolf
TLDR
The Scandinavian wolf population represents one of the genetically most well‐characterized examples of a severely bottlenecked natural population, and of how the addition of new genetic material can at least temporarily provide a ‘genetic rescue’. Expand
...
1
2
3
4
5
...

References

SHOWING 1-10 OF 79 REFERENCES
The genetical history of an isolated population of the endangered grey wolf Canis lupus: a study of nuclear and mitochondrial polymorphisms.
The grey wolf was thought to have been exterminated in the Scandinavian peninsula when the sudden appearance of a few animals in southern Sweden was reported in 1980. These wolves founded a newExpand
Conservation genetics of the endangered Isle Royale gray wolf
The small group of wolves on Isle Royale has been studiedfor over three decades as a model of the relationship between large carnivores and their prey. During the last ten years the populationExpand
Selection against inbred song sparrows during a natural population bottleneck
TLDR
It is reported that song sparrows that survived a severe population bottleneck were a non-random subset of the pre-crash population with respect to inbreeding, and that natural selection favoured outbred individuals, suggesting that inbreeding depression was expressed in the face of an environmental challenge. Expand
Inbreeding and relatedness in Scandinavian grey wolves Canis lupus.
TLDR
It is shown here that individual heterozygosity at a set of 29 microsatellite loci correlates closely to the degree of inbreeding in a captive grey wolf population, pointing out an additional risk for the small Swedish wild population. Expand
Mitochondrial DNA phylogeography and population history of the grey wolf Canis lupus
TLDR
The results suggest that fluctuating population sizes during the late Pleistocene have left a genetic signature on levels of variation in both species, and a statistical parsimony analysis indicates local genetic structure that suggests recent restricted gene flow. Expand
Inbreeding and extinction in a butterfly metapopulation
TLDR
The effect of inbreeding on local extinction in a large metapopulation of the Glanville fritillary butterfly is studied and it is found that extinction risk increased significantly with decreasing heterozygosity, an indication of inmarriage. Expand
Inbreeding Depression in a Captive Wolf (Canis lupus) Population
TLDR
Different effects of inbreeding can be attributed to genes originating from different founder pairs, thus indicating that alleles that are deleterious in the homozygous state are fairly common in natural wolf populations. Expand
Modeling problems in conservation genetics using captive Drosophila populations: Improvement of reproductive fitness due to immigration of one individual into small partially inbred populations
TLDR
Results indicate substantial benefits can be gained by the translocation of as few as a single animal between small, partially inbred populations of D. melanogaster. Expand
Inbreeding effects in wild populations.
TLDR
This work reveals that levels of inbreeding depression vary across taxa, populations and environments, but are usually substantial enough to affect both individual and population performance. Expand
Two centuries of the Scandinavian wolf population: patterns of genetic variability and migration during an era of dramatic decline
TLDR
Historical patterns of genetic variability among historical Scandinavian wolves was significantly lower than in Finland while Y chromosome variability was comparable between the two populations, which may suggest that long‐distance migration from the east has been male‐biased. Expand
...
1
2
3
4
5
...