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| NORONHA,Janaina da Costa de; PRADO,Cynthia P. A.; HERO,Jean-Marc; CASTLEY,Guy; RODRIGUES,Domingos de Jesus. |
| ABSTRACT Trachycephalus cunauaru is an Amazonian hylid that uses phytotelmata to reproduce. There is relatively little information about the species, mainly due to the difficulty of accessing their reproductive sites. In this study, we gathered data on the ecology and natural history of T. cunauaru in the southern Amazon, in the state of Mato Grosso, Brazil. In addition to natural phytotelmata, we used buckets installed at a height of 10 m as artificial phytotelmata. We compared physical and chemical characteristics, as well as the presence of tadpoles between natural and artificial phytotelmata. We also collected data on the reproductive behavior of the species through the use of camera traps. We recorded a density of 14.1 reproductive sites per km².... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Phytotelmata; Artificial reproductive sites; Canopy sampling; Oophagy; Amphibians. |
| Ano: 2021 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672021000100034 |
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| OLIVEIRA,Angellica Fernandes de; CASTOLDI,Lindsey; VIEIRA JUNIOR,Gerardo Magela; MONÇÃO FILHO,Evaldo dos Santos; CHAVES,Mariana Helena; RODRIGUES,Domingos de Jesus; SUGUI,Marina Mariko. |
| ABSTRACT The skin secretion from toads of the Bufonidae family has great potential in the search for new active compounds to be used as drug candidates in treating some diseases, among them cancer. In this context, this study aimed to evaluate the cytotoxic and antimutagenic activity of the parotoid gland secretion extracts of Rhinella marina and Rhaebo guttatus, as well as biochemically analyze transaminases and serum creatinine for liver and renal damage, respectively. Cytotoxicity was performed by the colorimetric method based on MTT (3- [4, 5-dimethyl-2-thiazolyl]-2, 5-diphenyl-2H-tetrazolium bromide) with different concentrations of the extracts in Walker or splenic tumor cell cultures from rats and mice. The micronucleus test was performed with male... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Genotoxicity; Bioprospecting; Micronuclei; Chemoprevention. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672019000200145 |
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| ALMEIDA,Everton José; LUIZÃO,Flávio; RODRIGUES,Domingos de Jesus. |
| Nutrient recycling in the forest is linked to the production and decomposition of litter, which are essential processes for forest maintenance, especially in regions of nutritionally poor soils. Human interventions in forest such as selecttive logging may have strong impacts on these processes. The objectives of this study were to estimate litterfall production and evaluate the influence of environmental factors (basal area of vegetation, plant density, canopy cover, and soil physicochemical properties) and anthropogenic factors (post-management age and exploited basal area) on this production, in areas of intact and exploited forest in southern Amazonia, located in the northern parts of Mato Grosso state. This study was conducted at five locations and the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Transition forest; Nutrient cycling; Selective logging; Forest management. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672015000200157 |
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| NORONHA,Janaina da Costa de; BATTIROLA,Leandro Dênis; CHAGAS JÚNIOR,Amazonas; MIRANDA,Robson Moreira de; CARPANEDO,Rainiellen de Sá; RODRIGUES,Domingos de Jesus. |
| Centipedes are opportunistic carnivore predators, and large species can feed on a wide variety of vertebrates, including bats. The aim of this study was to report the third record of bat predation by centipedes worldwide, the first record in the Amazon region, while covering aspects of foraging, capture and handling of prey. We observed the occurence in a fortuitous encounter at Cristalino State Park, located in the Amazon region of the state of Mato Grosso, Brazil. The attack took place in a small wooden structure, at about three meters from the floor, and was observed for 20 minutes. During the observation, the centipede stung the neck and abdominal region of the bat several times, grabbing the prey with its 15 pairs of front legs while hanging from the... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Chilopoda; Chiroptera; Feeding behavior. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672015000300333 |
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