Table 1.
(LSM) and sample size (N) for ANOVA for five morphometric characters that are highly descriptive for Gopherus evgoodei and frequency percentages for one character. Mixed samples from localities in the Sinaloan thornscrub-Sonoran desertscrub ecotone with the occurrence of both Gopherus evgoodei and Gopherus morafkai genotypes and/or hybrids. Carapace shape measures ‘roundness’ of carapace.
| Variable | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Lineage (Location) | Shell Color | Integument color | Tail length | Male plastron concavity | Carapace shape | Humeral spurs | ||||||
| LSM | N | LSM | N | LSM | N | LSM | N | LSM | N | % with spurs | N | |
| Gopherus evgoodei (Mexico) | 601.686 | 35 | 593.543 | 35 | 0.61 | 33 | 10.185 | 17 | 0.419 | 36 | 100.0 | 37 |
| Mixed Gopherus evgoodei / Gopherus morafkai (Mexico) | 574.8 | 10 | 560.667 | 9 | 0.778 | 9 | 13.8 | 4 | 0.447 | 10 | 62.5 | 8 |
| Gopherus morafkai (Mexico) | 548.25 | 16 | 541.563 | 16 | 0.833 | 12 | 11.35 | 8 | 0.454 | 16 | 25.0 | 16 |
| Gopherus agassizii (Imperial County, California) | 562.706 | 17 | 546.882 | 17 | 0.947 | 19 | 25.312 | 10 | 0.449 | 18 | 15.8 | 19 |
| Gopherus agassizii (San Bernardino County, California) | 549.654 | 26 | 552.882 | 17 | 0.96 | 25 | 19.786 | 8 | 0.461 | 25 | 73.9 | 23 |
| Gopherus agassizii (Kern County, California) | 563.219 | 64 | 543.578 | 64 | 0.934 | 61 | 22.844 | 36 | 0.454 | 63 | 74.6 | 63 |