Their predominance in the study area suggests an advanced degree of. Predation of scinax fuscovarius by two invertebrates in southeastern brazil 373. The in situ data showed no significant variation in the micronucleus frequency. High species richness of scinax treefrogs hylidae in a. The species occurs throughout urban, periurban, and open nonforested lands of southeastern brazil, northern argentina, paraguay, and bolivia frost, 2014, in close association with the gran chaco extension. Histological characterization of cellular types during scinax fuscovarius oogenesis lutz anura, hylidae. Histological characterization of cellular types during. Esterase inhibition in tadpoles of scinax fuscovarius. The objective of this work were to analyze the effect of predation by odonata naiads on two amphibian species with distinct habits benthic and midwater and to verify whether the presence and architecture of macrophytes can mediate this interaction.
In the present study, we provided in situ data of dendropsophus minutus, physalaemus cuvieri, and scinax fuscovarius collected in soybeancorn and conservation units in the brazilian cerrado. Accurate descriptions of gonadogenesis are necessary to have a baseline to detect abnormalities during development and to assess the time a species may be more vulnerable to the action of pesticides, endocrine disruptors, and pharmaceuticals to which abnormal conditions have been attributed. Here we report on two records of predation of this species by two arthropods. It is similar to scinax fuscovarius but differs in call characteristics. Contributors receive a pdf file for personal distribution. Pdf zusammenfugen online pdf dateien zusammenfugen.
New records of anuran predation by snakes of the genus thamnodynastes wagler, 1830 colubridae. Scinax similis, scinax fuscovarius, and scinax fuscomarginatus. We studied taxa that differed in the oral morphology of their larvae and position in the water column. In this work, we characterized the activities of ache, bche and cbe in. Its natural habitats are moist savanna, subtropical or tropical moist shrubland, subtropical or tropical highaltitude shrubland, subtropical or tropical dry lowland grassland, subtropical or tropical seasonally wet or flooded lowland grassland, intermittent freshwater. Pdf a new species of scinax anura, hylidae of the s.
Dipsadinae in the atlantic rainforest of southeastern brazil thiago a. Scinax wagler, 1830 is a speciesrich genus of amphibians with relatively few detailed chromosomal reports. Bonner zoologische monographien scinax fuscovarius. Scinax fuscovarius least concern downloaded on 16 april 2008. Pesticides can reach the aquatic environment, posing risks to nontarget organisms, including tadpoles. In this work, cytogenetic analyses of scinax auratus wiedneuwied, 1821 and scinax eurydice bokermann, 1968 were carried out based on conventional giemsa staining, agnor and cbanding and cytomolecular basespecific fluorochrome staining and fluorescence in situ hybridization.
For the 1st experiment, 15 animals were evaluated per group, in three. Individuals were taken to the laboratory where they. Here, i describe the histomorphological changes during gonadal differentiation in the snouted treefrog. Media in category scinax fuscovarius the following 12 files are in this category, out of 12 total. The snouted treefrog scinax fuscovarius is a member of the family hylidae, currently placed in the scinax ruber group faivovich et al.
It is found in argentina, bolivia, brazil, paraguay, and uruguay. The 84 recognized species are currently arranged in five groups. The name originates from the greek word skinos, meaning quick or nimble. We analyzed 15 male specimens of each of the following species. Environmental drivers of tadpole community structure in. It is found in valleys of the eastern andes in southern bolivia, and controversially, in argentina. Dieses kostenlose tool erlaubt es mehrere pdfs oder bilddateien miteinander zu einem pdfdokument zu verbinden.
Gonadal differentiation and development in the snouted. This paper describes morphological characteristics of the ovarian germinative cells of the scinax fuscovarius lutz, 1925. Pdf the hylid frog genus scinax ranges from southern mexico to eastern argentina. Hylidae from semideciduous atlantic rain forest, southern brazil. Biochemical biomarkers in scinax fuscovarius tadpoles.
Hylidae by two invertebrates in southeastern brazil. Diet of the colubrid snake, thamnodynastes strigatus. Catalase activity in scinax fuscovarius tadpoles exposed to 0 control, 0. This frequency appears to be relatively low, as events of malformations in wild populations that do not exceed an estimated background malformation frequency of 25% are considered of no concern ouellet, 2000. In nature, tadpoles encounter food on substrates oriented at different angles e.
Eye malformation baseline in scinax fuscovarius larvae. Visceral pigmentation in three species of the genus scinax. Ginklasipika han iucn an species komo diri gud kababarakan. We manipulated the orientation of foodcovered surfaces to test how different orientations of surfaces affect tadpoles feeding efficiency. Organophosphate pesticides ops are among the most used insecticides in agriculture, causing the inhibition of esterases like acetylcholinesterase ache, butyrylcholinesterase bche and carboxylesterase cbe. Effect of the spatial heterogeneity on the predation of.
Pdf predation of scinax fuscovarius by leptodactylus. Pdf dero allodero lutzi michaelsen, 1926 oligochaeta. These species presents wide seasonal occurrence and are ecological generalists. Hylidae by two invertebrates in southeastern brazil article pdf available in herpetology notes 7. Histological characterization of cellular types during scinax fuscovarius.
Comparative analysis based on replication banding reveals. Scinax fuscovarius is a species of frog in the family hylidae. An scinax fuscovarius in nahilalakip ha genus nga scinax, ngan familia nga hylidae. Scinax fuscovarius were found in areas presenting high anthropogenic impact, such as urban areas close to gardens and residences. We found that scinax fuscovarius larvae populations presented a 0. These are small to moderatesized tree frogs, drably colored. An scinax fuscovarius in uska species han anura nga syahan ginhulagway ni lutz hadton 1925. Cytogenetic analysis of scinax auratus and scinax eurydice. Scinax castroviejoi is a species of frog in the family hylidae. The animals were collected in the surroundings of sa. Esterase inhibition in tadpoles of scinax fuscovarius anura, hylidae as a biomarker for exposure to organophosphate pesticides. Naididae associated with scinax fuscovarius lutz, 1925 anura. New records of anuran predation by snakes of the genus. Scinax is a genus of frogs snouted treefrogs in the family hylidae found in eastern and southern mexico to argentina and uruguay, trinidad and tobago, and saint lucia.
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