| helminth infracommunity structure of the sympatric garter snakes thamnophis eques and thamnophis melanogaster from the mesa central of mexico. | seventy-two mexican garter snakes (thamnophis eques) and 126 black-bellied garter snakes (t. melanogaster) were collected from 4 localities of the mesa central of mexico between july 1996 and february 1998 and examined for helminths. both species of garter snakes occurred sympatrically in every locality except in lake cuitzeo. both species of snakes shared 9 helminth species, and in general, t. melanogaster hosted a larger number of species than t. eques. in each locality, a different helminth s ... | 2002 | 12099411 |
| microgeographic variation in body condition of three mexican garter snakes in central mexico. | geographic variation in body size and condition can reveal differential local adaptation to resource availability or climatic factors. body size and condition are related to fitness in garter snakes (thamnophis), thus good body condition may increase survival, fecundity in females, and mating success in males. phylogenetically related species in sympatry are predicted to exhibit similar body condition when they experience similar environmental conditions. we focused on interspecific and geograph ... | 2019 | 30886780 |
| intraspecific variation in the diet of the mexican garter snakethamnophis eques. | the mexican garter snake (thamnophis eques)is a terrestrial-aquatic generalist that feeds on both aquatic and terrestrial prey. we describe size-related variation and sexual variation in the diet oft. equesthrough analysis of 262 samples of identifiable stomach contents in snakes from 23 locations on the mexican plateau. the snaket. equeswe studied consumed mostly fish, followed in lesser amounts by leeches, earthworms, frogs, and tadpoles. correspondence analysis suggested that the frequency of ... | 2017 | 29158976 |
| influence of seasonality and gestation on habitat selection by northern mexican gartersnakes (thamnophis eques megalops). | species conservation requires a thorough understanding of habitat requirements. the northern mexican gartersnake (thamnophis eques megalops) was listed as threatened under the u.s. endangered species act in 2014. natural resource managers are interested in understanding the ecology of this subspecies to guide management decisions and to determine what features are necessary for habitat creation and restoration. our objective was to identify habitat selection of northern mexican gartersnakes in a ... | 2018 | 29381753 |