| monitoring the morphological integrity of neotropical anurans. | amphibians are considered to be excellent bioindicators to their morphophysiological characteristics and life cycle. in this context, the present study investigated the morphological integrity of anuran larvae collected in preserved environments in the emas national park, in the municipality of mineiros (goiás state, brazil), and in environments representative of the agricultural matrix of the rio verde region, also in goiás, where there is a long history of the use of agricultural pesticides. s ... | 2019 | 30474816 |
| comparative sperm ultrastructure of twelve leptodactylid frog species with insights into their phylogenetic relationships. | the spermatozoa of representatives of three neotropical frog subfamilies, leiuperinae, leptodactylinae and paratelmatobiinae, were observed using transmission electron microscopy, with the aim of identifying ultrastructural traits that provide insights into the phylogenetic relationships among these anurans, which are currently unclear. in the leiuperines, spermatozoa of physalaemus albifrons, p. cicada, p. deimaticus and p. feioi were characterized by an acrosomal vesicle covering the subacroso ... | 2016 | 27644081 |