Data from: Inbreeding depression in pronghorn (Antilocapra americana) fawns

Although inbreeding depression affects survival, fitness and population
viability, the extent of inbreeding depression in wild populations remains
unclear. We examined inbreeding depression in the small, isolated National
Bison Range (NBR), MT, pronghorn (Antilocapra americana) population
following a bottleneck. We have studied the NBR pronghorn extensively
since 1981, and we have detailed birth, survival and mate choice data. We
genotyped all animals in the population between 1999-2010 at 19
microsatellite loci, assigned paternities to all fawns based on genotype,
and constructed a genetic-based pedigree to calculate inbreeding
coefficients (f). We found an increase in the frequency of inbreeding
following the bottleneck. We detected evidence of inbreeding depression on
fawn survival to weaning, birth mass, foot length and condition. We
estimated the number of diploid lethal equivalents on survival to weaning
as 24.17 - 28.72. Standardized heterozygosity (H) had a relatively small
influence on survival, mass, length and condition compared to f; and H was
not correlated with f. We conclude that for pronghorn, H was not a good
predictor of pedigree-estimates of f.