(3) Heterozygosity-based mate choice
To test if titis show any heterozygosity-based mating pattern, we
compared individual heterozygosity levels between pair mates. To
estimate individual heterozygosity, we calculated homozygosity by loci
(HL), a microsatellite-derived measure that weights the contribution of
each locus to the homozygosity value depending on their allelic
variability, implemented in R function GENHET 3.1 (Coulon, 2010). To
test if HL is correlated between pair mates, we used a two-tailed
Pearson correlation analysis.