Fifteen new marmot pups are facing a brighter future.
The Vancouver Island marmot captive population serves two important and distinct purposes. First, it is a safety-net or life-boat population to protect the species from the threat of extinction, and secondly it produces healthy new recruits, like the pups born this spring ready for release in 2016, to rebuild the wild populations.
Captive breeding is an intensive means to rescue an endangered species from the brink of extinction before it is too late to intervene. Fortunately for the Vancouver Island marmot it was not too late and the release of captive-born recruits is succeeding to increase the population. Of course numbers aren’t the complete story. There are many other obstacles for the marmots to overcome before they can be declared safely recovered.
The captive population is carefully maintained to protect its genetic diversity. Marmots are selected for breeding, or release to the wild, based on their relative genetic importance and kinship (to avoid inbreeding). This careful management has retained over 96% of the original founders’ genetic diversity.
The original 55 wild-born founders were captured between 1997 and 2004. Since the birth of the very first Vancouver Island marmot pups in captivity in 2000, 167 weaned litters have been born totalling 566 pups.