Cub adoption by polar bears ( Ursus maritimus ): determining relatedness with microsatellite markers

Autor:	S. Atkinson, N. J. Lunn, Curtis Strobeck, Mitch K. Taylor, Wendy Calvert, David Paetkau
Rok vydání:	2000
Předmět:	Adult female Ecology Evolutionary biology Ursus maritimus biology.animal fungi Kinship Microsatellite Animal Science and Zoology Genetic relatedness Biology First order Ecology Evolution Behavior and Systematics
Zdroj:	Journal of Zoology. 251:23-30
ISSN:	1469-7998 0952-8369
DOI:	10.1111/j.1469-7998.2000.tb00589.x
Popis:	Sixteen microsatellite markers were used to determine the genetic relatedness between adult female polar bears and their accompanying cubs for three recent occurrences of natural adoption recorded in the Canadian Arctic. The estimation of the degree of relatedness was powerful and provided a high degree of separation between first order relatives and unrelated individuals with the loci used. The analysis showed that the cubs were unrelated to their adoptive mothers and that the mothers were unrelated to one another. Although the circumstances and mechanisms whereby these adoptive events occurred are unknown, the data do not support kinship theory as an explanation for the exchange of cubs. We suggest that these adoptive events probably represent instances of the misidentification of cubs by adult polar bears.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::5c5a70859ac7aba8914e6cd1eca4cfb5 https://doi.org/10.1111/j.1469-7998.2000.tb00589.x Zobrazit plný text záznamu Plný text