This study described and analyzed the roadkill of native vertebrates in the southwest of the Brazilian State of Goiás, evaluating the influence of the seasonal variation in climate and the influence of highway structure (e.g., two lane/one lane routes, road conditions). In this context, we collected samples each month over a one-year period on five of the region's highways, all of which originate in the town of Jataí, linking it to the neighboring towns of Acreúna, Aporé, Itajá, Doverlândia and Portelândia. We recorded 1113 individuals (0.115 individuals/km/year), including nine amphibians, 55 reptiles, 223 birds, and 826 mammals. The two-lane highway had the highest species richness and abundance, and was significantly different from the other roads. We also found significant seasonal differences in overall abundance, and the species richness and abundance of the herpetofauna, with a greater number of collisions occurring during the rainy season. Over the long term, programs of environmental education-especially during the rainy season-may help to raise the awareness of drivers.
Guira cuckoo (Guira guira) is a communal breeder bird species displaying a diversified diet. In this study, we report the first published predation event of a rodent by Guira cuckoo in Brazil. We searched for vertebrate predation by this bird species in Brazilian domains in the following databases: Google Scholar, SciELO, Scopus and Web of Science. We recorded the rodent predation event in a landscape composed of pasture and gallery forest in Campo Grande municipality, Mato Grosso do Sul, central-west Brazil. The predated rodent is a vesper mouse, Calomys sp. We found 19 vertebrate species predated by the Guira cuckoo, distributed in all Brazilian domains, within the orders: Anura (5 species), Passeriformes (1), Squamata (12), and Rodentia (1 - present study). Our result contributes to the natural history of the Guira cuckoo, and highlights that this cuckoo bird displays a generalist diet, feeding on a diversity of vertebrate species.
The micro-watershed of the Ouricuri river stands out for serving a large portion of the local population, however, the lack of sanitation, construction in permanent preservation areas, the release of effluents, and other highimpact activities influence the maintenance of the local ecosystem. The study aimed to promote the integration of environmental assessment methodologies such as Rapid Protocol for Environmental Assessment (RPEA) and interpolation by the Inverse Distance Weighted (IDW) method to evaluate the impact to which the study area is subject. The integration of techniques enabled to verify that the points P9 and P10 are in anoxic conditions, with values 60% below what is recommended by Resolution N° 357/05 of CONAMA for class 2 water, and the other points varying between high and moderate environmental risk, with emphasis on Points P4 and P5, corresponding to the Ouricuri River, where the situation requires greater attention. The Total Impact in the study area suggests that the Ouricuri microwatershed needs immediate intervention, as in the sections of the Ouricuri River located in the commercial center and its tributaries, which are smaller streams, there is great pressure from the municipal sanitation system and buildings in protected areas, promoting serious changes to the local ecosystem and consequently to people's health.
We provide new records of Potos flavus from 2 localities in the states of Goiás and Mato Grosso, central Brazil. These records extend the geographical distribution of this species in the Cerrado biome and highlights the importance of future research on this species. These new distributional data may contribute to a re-evaluation of its conservation status.
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