GEOESPELEOLOGIA
URI permanente para esta coleçãohttps://bdc.icmbio.gov.br/handle/cecav/2
Navegar
3 resultados
Resultados da Pesquisa
Item Description and ecology of a new species of the cricket genus Endecous (Orthoptera: Grylloidea: Phalangopsidae) in the speleological province of Arcos-Pains-Doresópolis, Southeastern Brazil(2020-07-31) AntÔnio Castro-Souza, Rodrigo; Gabriel Pereira Junta, Vitor; Lopes Ferreira, RodrigoA new cricket species of the genus Endecous Saussure, 1878 is described in the present work found in the speleological province of Arcos-Pains-Doresópolis, which belongs to the limestone group Bambuí, Brazil. Moreover, the spatial distribution of the new species was related to the species Eidmanacris sp., which co-occurs with the former in several caves. Relationships between species abundance and horizontal projection, number of entrances and environmental stability of the caves where these species coexist were evaluated. The presence of bilateral symmetry in individuals of Endecous painensis n. sp. perhaps due to environmental stress caused by mining activities surrounding the cave was also tested. Endecous crickets are commonly observed in the caves, for which the preference by distinct microhabitats and generalist strategies may be key factors explaining colonization and segregation in relation to other cricket species in subterranean habitats. The generalist lifestyle of the here described species may attenuate the effects environmental stresses over development.Item The Educational Potential of Geodiversity in Ferruginous Geosystem: the Example of the Quadrilátero Ferrífero, Minas Gerais, Brazil(2021-03-28) José dos Santos, Darcy; Ruchkys, Úrsula; Eduardo Panisset Travassos, LuizOne of the most significant ferruginous geosystems in Brazil and worldwide is the Quadrilátero Ferrífero, located in Minas Gerais, in its southeastern part. Its economic importance imposes intense pressure on unique environmental attributes, such as rare species of flora and fauna, speleological sites, scenic beauty, water resources, geological outcrops and fossils. To protect one of the few remnants of this geosystem not yet economically used by mining, a conservation unit of integral protection was created in 2014: the Serra do Gandarela National Park. In this context, the article aims to inventory and evaluate representative sites of geodiversity for educational purposes, indicating a methodological procedure that can be used for other ferruginous geosystems in Brazil and the world. For this, two methodological steps were used. The first involved assessing the study area as a whole, using map algebra which considered geodiversity, environmental vulnerability and capillarity of access roads. Using the results of the previous one, the second stage evaluated six specific geodiversity sites in the study area for didactic use, from a qualitative, quantitative point of view and regarding the risk of degradation. The results show that this integrated evaluation proved to be suitable, allowing the identification of the potentialities and risks of the selected sites and understanding the implications for the educational use of each one of them due to their location within the conservation unit.Item The Educational Potential of Geodiversity in Ferruginous Geosystem: the Example of the Quadrilátero Ferrífero, Minas Gerais, Brazil(2021-03-28) dos Santos, Darcy José; Ruchkys, Úrsula; Panisset Travassos, Luiz EduardoOne of the most significant ferruginous geosystems in Brazil and worldwide is the Quadrilátero Ferrífero, located in Minas Gerais, in its southeastern part. Its economic importance imposes intense pressure on unique environmental attributes, such as rare species of flora and fauna, speleological sites, scenic beauty, water resources, geological outcrops and fossils. To protect one of the few remnants of this geosystem not yet economically used by mining, a conservation unit of integral protection was created in 2014: the Serra do Gandarela National Park. In this context, the article aims to inventory and evaluate representative sites of geodiversity for educational purposes, indicating a methodological procedure that can be used for other ferruginous geosystems in Brazil and the world. For this, two methodological steps were used. The first involved assessing the study area as a whole, using map algebra which considered geodiversity, environmental vulnerability and capillarity of access roads. Using the results of the previous one, the second stage evaluated six specific geodiversity sites in the study area for didactic use, from a qualitative, quantitative point of view and regarding the risk of degradation. The results show that this integrated evaluation proved to be suitable, allowing the identification of the potentialities and risks of the selected sites and understanding the implications for the educational use of each one of them due to their location within the conservation unit.