Robert D. Denton

TL;DR: The differences in dispersal between these two types of salamanders informs the understanding of sexual/unisexual coexistence by suggesting that unisexuals are at a competitive disadvantage in terms of colonization ability under a extinction-colonization model of coexistence.

TL;DR: This work assesses prey preference in a group of Dusky Pigmy Rattlesnakes that had eaten only mice or lizards over a 5 year period to test whether genetics or plasticity primarily determine the preference phenotype, and provides evidence for genetic determination of preference for lizard chemical cues in pigmy rattlesnake.

TL;DR: Evidence is provided that different biotypes within the unisexual lineage have distinct ecological interactions with sexual taxa, supporting a role for these differences as a mechanism promoting coexistence between some sexual and unisexual forms.

TL;DR: The results provide direct evidence that genome exchange between sexual and unisexual Ambystoma occurs and demonstrate that the magnitude depends on which sexual species are present.

TL;DR: This work hypothesize that higher ploidy or variations in genome composition in unisexual Ambystoma would result in increased tissue regeneration compared to diploid sexual relatives, as polyploidy is generally associated with faster limb regeneration and tested this hypothesis by comparing tail regeneration rates over 4 months between polyploids unisexual salamanders and sympatric diploids sexual salamander under standardized laboratory conditions.