Results 21 to 30 of about 7,174 (178)

FISIOGRAFIA DA PAISAGEM E ASPECTOS BIOGEOMORFOLÓGICOS DO LAVRADO, RORAIMA, BRASIL

Revista Brasileira de Geomorfologia, 2016
Este estudo discute a relevante interação entre os aspectos morfológicos do relevo (Geomorfologia) correlacionados com os aspectos de distribuição da biota (Biogeografia). A região aqui discutida, esta inserida dentro do domínio morfoclimático amazônico,
Thiago Morato Carvalho, Celso Morato Carvalho, Roseane Pereira Morais   +2 more
doaj   +1 more source

QUESTÕES DE ORÇAMENTO

Ambiente, 2019
O objetivo desta pesquisa é analisar o orçamento público estadual destinado ao desenvolvimento dos programas temáticos executados pela Polícia Civil do Estado de Roraima nos PPA’s do período de 2012 a 2019.
Andréia Saraiva Ximenes
doaj   +1 more source

Podoxymys roraimae Anthony 1929

, 2017
542. Roraima Mouse Podoxymys roraimae French: Akodon du Roraima / German: Roraima-Maus / Spanish: Raton de Roraima Other common names: Roraima Akodont Taxonomy. Podoxymys roraimae Anthony, 1929, “summit of Mt. Roraima, British Guiana [= Guyana], altitude 8600 feet [= 2621 m].” Podoxymys roraimaeis the type species of the genus. Monotypic. Distribution.
Don E. Wilson, Russell A. Mittermeier, Thomas E. Lacher, Jr   +2 more
  +4 more sources

Update on Ouratea cidiana Sastre (Ochnaceae), a microendemic species from the Amazon: enlightening the identity and conservation status

Nordic Journal of Botany, EarlyView.
Ouratea cidiana (Ochnaceae) is a microendemic shrub species from the Brazilian Amazonia, occurring along the banks of the Trombetas River and restricted to the Cachoeira Porteira region, in western Pará State. Since the original collection nearly forty years ago, no additional records have been made, which is concerning given the continuous decline in ...
Clebiana de Sá Nunes, Mayara Dias Caldas, Fúvio Rubens Oliveira‐da‐ Silva, Anna Luiza Ilkiu‐ Borges, André dos Santos Bragança Gil   +4 more
wiley   +1 more source

Narcogarimpo: las afinidades electivas entre los frentes de minería ilegal y la expansión del narcotráfico en la Amazonía brasileira

Urvio
Este estudio lleva a cabo una interpretación sociohistórica de los frentes de minería ilegal y sus afinidades con los dos grupos criminales, Comando Vermelho (CV) y Primeiro Comando da Capital (PCC), que se expandieron violentamente desde Rio de Janeiro ...
Rodrigo Pereira Chagas
doaj   +1 more source

Belostomatidae (Heteroptera: Nepomorpha) held in the Invertebrate Collection of the Instituto Nacional de Pesquisas da Amazônia, Manaus, Brazil: inventory and new distributional records

Papéis Avulsos de Zoologia, 2019
Belostomatidae is a family of giant water bugs with 52 valid species in Brazil. Here, we list 33 valid species housed in the Invertebrates Collection of the Instituto Nacional de Pesquisas da Amazônia - INPA, Manaus, Brazil. Of the total species examined,
Thaís Melo de Almeida, Fabiano Stefanello, Neusa Hamada   +2 more
doaj   +1 more source

Dicrananthera hedyotidea C. Presl. (Melastomataceae) in Maranhão state, Brazil: first record and ecological niche model of the species

Nordic Journal of Botany, EarlyView.
Dicrananthera C. Presl. is a monospecific genus of the tribe Marcetieae, comprising perennial herbs typically occurring in areas adjacent to wetlands. The species exhibits a disjunct distribution, with confirmed records in both the Amazon and Atlantic Forest domains.
Elias Julio Oliveira Correa, Sandro Márcio dos Santos Junior, Antônio Fernando Costa da Silva, Kalynne Nayara Lima dos Santos, Eduardo Bezerra de Almeida Jr   +4 more
wiley   +1 more source

Biosurfactant production by Pseudomonas aeruginosa isolated from mining waste: From genomic analysis to development of a polymeric composite for removal of hexavalent chromium

Polymer International, EarlyView.
Biosurfactant was produced by Pseudomonas aeruginosa using andiroba waste from Amazonia. A biosurfactant–alginate composite (Alg/BioS) was successfully synthesized via ionotropic gelation, and achieved up to 70% Cr6+ removal from water. Abstract Environmental contamination by heavy metals represents a significant challenge due to their persistence in ...
Paulo Diniz Austriaco, Emilly Cruz da Silva, Glenda Sores Gomes, Joane Almeida Alves, Amanda Vidal, Leandro Argolo, Rafaela Ribeiro, Luciana Souza, José Augusto Pires Bitencourt, Leonardo Brasil Felipe, Leonie Asfora Sarubbo, Sidnei Cerqueira dos Santos   +11 more
wiley   +1 more source

Wall‐to‐wall Amazon forest height mapping with Planet NICFI, Aerial LiDAR, and a U‐Net regression model

Remote Sensing in Ecology and Conservation, EarlyView.
Tree canopy height is a key indicator of forest biomass and structure, yet accurate mapping across the Amazon remains challenging. Here, we generated a canopy height map of the Amazon forest at ~4.8 m resolution using Planet NICFI imagery and a deep learning U‐Net model trained with airborne LiDAR data.
Fabien H. Wagner, Ricardo Dalagnol, Griffin Carter, Mayumi C. M. Hirye, Shivraj Gill, Le Bienfaiteur Sagang Takougoum, Samuel Favrichon, Michael Keller, Jean P. H. B. Ometto, Lorena Alves, Cynthia Creze, Stephanie P. George‐Chacon, Shuang Li, Zhihua Liu, Adugna Mullissa, Yan Yang, Erone G. Santos, Sarah R. Worden, Martin Brandt, Philippe Ciais, Stephen C. Hagen, Sassan Saatchi   +21 more
wiley   +1 more source

Illegal Gold Mining in the Brazilian Amazon: Environmental Degradation in Yanomami Indigenous Lands, and Regulatory Failures

Sustainable Development, EarlyView.
ABSTRACT Illegal gold mining has emerged as a major sustainability threat in the Amazon, eroding Indigenous rights, forest integrity, and climate mitigation efforts. This study examines how international market incentives relate to the expansion of illegal mining and associated deforestation within the Yanomami Indigenous Territory (YIT) from 2008 to ...
Shirléia Lago Santos, Ana Claudia de Araujo Moxotó, Jurandir Moura Dutra   +2 more
wiley   +1 more source