| the fine structure of garnia gonadati and its association with the host cell. | most of the studies on the fine structure of protozoa of the apicomplexa group have been carried out with members of the toxoplasma, eimeria, and plasmodium genera. in the present study we analyzed the fine structure of garnia gonadoti parasitizing the red blood cells of the amazonian reptile gonatodes humeralis (reptilia; lacertilia). transmission electron microscopy of thin sections showed that g. gonadoti presented all structures characteristic of the group, including the apicoplast. however, ... | 2000 | 11133112 |
| xx/xy sex chromosomes in the south american dwarf gecko (gonatodes humeralis). | sex-specific genetic markers identified using restriction site-associated dna sequencing, or radseq, permits the recognition of a species' sex chromosome system in cases where standard cytogenetic methods fail. thus, species with male-specific rad markers have an xx/xy sex chromosome system (male heterogamety) while species with female-specific rad markers have a zz/zw sex chromosome (female heterogamety). here we use radseq data from five male and five female south american dwarf geckos (gonato ... | 2017 | 29294045 |
| population genetic structure and species delimitation of a widespread, neotropical dwarf gecko. | amazonia harbors the greatest biological diversity on earth. one trend that spans amazonian taxa is that most taxonomic groups either exhibit broad geographic ranges or small restricted ranges. this is likely because many traits that determine a species range size, such as dispersal ability or body size, are autocorrelated. as such, it is rare to find groups that exhibit both large and small ranges. once identified, however, these groups provide a powerful system for isolating specific traits th ... | 2019 | 30590108 |
| climate change effects on population dynamics of three species of amazonian lizards. | the scarcity of data on natural history and ecology of lizards still limits the understanding of population dynamics for many species. we attempt to evaluate possible effects of climate change on the population dynamics of three lizard species (ameiva ameiva, gonatodes humeralis and norops fuscoauratus) in two amazonian localities (caxiuanã national forest and ducke reserve). we calculated a tolerance index combining environmental thermal adequacy with the b-d model, which consider survival and ... | 2019 | 31319170 |