Results 21 to 30 of about 1,214 (180)

Insetos como bioindicador de qualidade ambiental em ambientes aquáticos

open access: yesRevista Thema, 2021
Estratégias de monitoramento da qualidade ambiental dos mais diversos ecossistemas vêm sendo desenvolvidos, principalmente para os ambientes aquáticos, espaços severamente atingidos pelas ações antrópicas.
João Paulo de Oliveira Santos   +5 more
doaj   +1 more source

O estado do Rio Grande do Norte como área estratégia para conservação de peixe-boi-marinho (Trichechus manatus) no Brasil

open access: yesRevista Brasileira de Meio Ambiente, 2021
O peixe-boi-marinho (Trichechus manatus) é uma das espécies de mamíferos aquáticos mais ameaçadas de extinção no Brasil. Com um tamanho populacional ainda desconhecido, foi bastante explorado pela caça desde o descobrimento do Brasil, até meados do ...
Fernanda Loffler Niemeyer Attademo   +5 more
doaj  

Potencial do uso de amostras fecais de felinos como ferramenta de monitoramento ambiental

open access: yesBiodiversidade Brasileira, 2022
O monitoramento das unidades de conservação (UCs) é fundamental para avaliar se atingem seus objetivos. Felinos são bons indicadores ambientais e suas fezes podem fornecer informações relevantes para o monitoramento de UCs.
Cecilia Cronemberger   +8 more
doaj   +1 more source

Sistema de prospecção de competências emergentes: proposta de modelo

open access: yesEm Questão, 2016
A questão do emprego e o desenvolvimento de competências emergentes apresentam-se como temas relevantes para a sociedade da informação e do conhecimento em uma economia globalizada e competitiva.
Jair Cunha Cardoso Filho   +1 more
doaj   +1 more source

Lack of Compliance in Gillnet Fisheries Regulations Increases Risk to a Vulnerable Species

open access: yesFisheries Management and Ecology, EarlyView.
ABSTRACT This article presents an analysis of regulatory compliance in a Brazilian gillnet fishery, based on Vessel Monitoring System (VMS) tracking data. Satellite transmissions records, interpreted as proxies for gillnet haulings events, were analyzed and classified using a neural network to assess the level of compliance of the gillnet fleet.
Rodrigo Claudino dos Santos   +3 more
wiley   +1 more source

First Record of Attempted Predation on the Scaled Dove (Columbina squammata) by the Boa Constrictor (Boa constrictor) in a Restinga Habitat of Northeastern Brazil

open access: yesActa Herpetologica
We report the first documented case of attempted predation on the scaled dove (Columbina squammata) by the boa constrictor (Boa constrictor) in a restinga environment on the north coast of Paraíba, Brazil.
Letícia Nunes Rezende   +6 more
doaj   +1 more source

Smile, you are on camera or in a live trap! The role of mammals in dispersion of jackfruit and native seeds in Ilha Grande State Park, Brazil

open access: yesNature Conservation Research: Заповедная наука, 2017
The alien species Artocarpus heterophyllus, originally from India, was introduced to Brazil in the colonial period and has become invasive in some areas in the Atlantic Forest. Its fruits can weigh 35 kg and produce up to 500 seeds each.
Daniel Santana Lorenzo Raíces   +3 more
doaj   +1 more source

A new catfish species of Microcambeva Costa & Bockmann, 1994 (Siluriformes: Trichomycteridae) from southern Brazil, with a redescription of M. ribeirae Costa, Lima & Bizerril, 2004

open access: yesJournal of Fish Biology, EarlyView.
Abstract Among the few species of Microcambeva reported as occurring in more than one hydrographic basin, M. ribeirae has been previously listed from both the Ribeira de Iguape and the Guaraqueçaba basins. However, morphological and molecular analyses revealed that the specimens from Guaraqueçaba represent a new species, which is described in this ...
Lucas S. de Medeiros   +6 more
wiley   +1 more source

Lagrangian Coherent Structures for Mapping Mesoscale Circulation in the Western Equatorial Atlantic

open access: yesJournal of Marine Science and Engineering
Lagrangian Coherent Structures (LCSs) in the mesoscale circulation of the Western Equatorial Atlantic (WEA), a region governed by the North Brazil Current (NBC) and its retroflection, are analyzed.
Yuri Onça Prestes   +2 more
doaj   +1 more source

Nanocapsules Containing Neem (Azadirachta Indica) Oil: Development, Characterization, And Toxicity Evaluation

open access: yesScientific Reports, 2017
In this study, we prepared, characterized, and performed toxicity analyses of poly(ε-caprolactone) nanocapsules loaded with neem oil. Three formulations were prepared by the emulsion/solvent evaporation method.
Tatiane Pasquoto-Stigliani   +10 more
doaj   +1 more source

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