Fig 1.
The 12 national Swedish traditional dog breeds that are monitored based on pedigree data in this study.
All of these breeds except Hällefors elkhound and Swedish white elkhound have been identified as of conservation concern by national authorities [9, 24].
Table 1.
Basic information on the 12 native Swedish dog breeds assessed in this study.
Table 2.
Summary statistics for the 12 Swedish dog breeds of this study over five points in time (date of assessment was December 31 for all five years).
Fig 2.
Average per breed inbreeding level in 12 Swedish traditional dog breeds measured from pedigree data at five points in time during 1980–2012.
Linear regression gives b = 0.001, r2 = 0.21, P<0.001 and the regression line is shown.
Fig 3.
Proportion of founder alleles that remain in each of 12 traditional Swedish dog breeds at five points in time over a 32 year period monitored in this study.
Linear regression gives b = -0.012, r2 = 0.42, P<<0.001 and the regression line is shown.
Table 3.
Average summary statistics from pedigree data over breeds obtained when assuming a lifespan of 6 vs. 12 years.