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GENETIC DIFFERENTIATION, GEOGRAPHIC VARIATION AND HYBRIDIZATION IN GULLS OF THE LARUS GLAUCESCENS-OCCIDENTALIS COMPLEX
DOUGLAS A. BELL IN: The Condor 98:527-546, 1996
TABLE 8. Genetic variability measures in members of L. glaucescens-occidentalis complex. Percentage of polymorphic loci listed as ≤ 0.99 (P99).
Heterozygosity is based on direct count (Hobs).
| Taxon |
n |
Mean no. alleles / Locus |
P99 |
Hobs ± (SE) |
| L. glaucescens |
217 |
1.9 |
43.7 |
0.046 (0.015) |
| Hybrids |
128 |
1.7 |
37.5 |
0.049(0.017) |
| L. o. occidentalis |
184 |
1.6 |
25.0 |
0.056 (0.022) |
| L. o. wymani |
84 |
1.3 |
25.0 |
0.061 (0.024) |
FIGURE 7. UPGMA cluster analysis of the L. glaucescens-occidentalis complex, based on a matrix of Rogers’ (1972) genetic distances (rcc = 0.90, %SD = 21.75). Taxa (=morphotypes), excluding L. o. wymani, were classified a posteriori by canonical DFA using calorimetric characters. Tree rooted at the midpoint. Sample sizes are given in Table 8.
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Glaucous-winged Gull glaucescens