next most common at 9%. A worldwide study of the Tollers' registration history in 17 countries shows that about 90% of the genetic diversity present in the founding population has been lost. Tollers born between 1999–2008 have an effective founder size of 9.8, realized effective population size of 18 and an average inbreeding coefficient of 0.26. Breeders are working to prevent losing heterozygosity and to maintain sufficient genetic variations. High kinship value means the breed is not able to maintain a steady level of inbreeding in the long term. Activities The Toller is known to excel in various sporting and obedience activities, and health and safety related jobs. The breeds' high energy and intelligence makes them perfect candidates for difficult jobs that require tremendous dedication and skill. Tollers enjoy working and being outside, therefore, it is no surprise that they excel at various sport and job related activities. The breed is categorized as a "sporting" dog under the CKC and AKA organizations making tollers ideal dogs for various physical activities. Other kennel clubs such as the AKNC and UKC categorize tollers as a "gundog" which depicts their drive, mental intelligence, and intuitive hunting sense. Kennel clubs throughout the world recognize Tollers as an athletic, intelligent, and a driven breed that has the innate ability to excel in any of the following activities: dog agility, dock jumping, disc catching, flyball, lure coursing, obedience, search and rescue, therapy dog, and hunting. See also List of dog breeds References External links FCI breeds Dog breeds originating in Canada Provincial symbols of Nova Scotia Gundogs Retrievers