n, sample size; Ho , observed
heterozygosity; HE, expected heterozygosity;GIS , inbreeding coefficient
We discovered 13 true recaptures in our combined dataset (relatedness
>0.80), which were removed from all subsequent analysis.
Recaptures spanned sample types, with pairs existing among or within
sample types: FF (n = 8), CF (n = 4), MS (n = 5), BP (n = 4), and HV (n
= 4). For example, one bear identified from a BP sample (non-lethal) was
later recaptured with a CF sample (lethal). Based on comparison of
multiple relatedness estimators, we determined that the quellergtcorrelation coefficient was best for our combined dataset (correlation
between observed and expected values = 0.97; Queller & Goodnight,
1989). Results from simulations with the quellergt coefficient
yielded pairwise relatedness density plots with marked separation for
full siblings, half siblings and parent-offspring pairs, and unrelated
individuals (Figure 1). Although relatedness among individuals in our
dataset was mostly unknown prior to analysis, we can see multiple cases
where samples from the same area show relatedness values close to 0.5,
as would be expected with parent- offspring or sibling pairs travelling
together.