Results 41 to 50 of about 5,679 (181)
Espécimes juvenis de curimbatá, Prochilodus scrofa, foram divididos em dois lotes, colocados em aquários de 81 litros, sendo um controle e outro tratado com Dipterex 500 (Trichlorfon), na concentração de 0,2 µL/L, onde os peixes permaneceram até o ...
Maria José Tavares RANZANI-PAIVA +4 more
doaj
Scientists’ warning on the global destruction of rock outcrop ecosystems
Abstract Rock outcrops are geological formations that harbor a highly specialized biota adapted to harsh environmental conditions that differ from their surrounding landscapes. They are globally distributed, especially in old, highly weathered landscapes, and can function as habitat islands containing high levels of endemism and distinct evolutionary ...
Luiza F. A. de Paula +19 more
wiley +1 more source
Assessing responses of reef island seabirds to environmental and anthropogenic drivers
Abstract Tropical insular ecosystems face escalating, cumulative impacts of land‐ and sea‐based ecological threats that jeopardize the long‐term sustainability of their native communities. This joint vulnerability is epitomized by reef island seabirds, which are exposed to reef decline and coastal erosion driven by climate change, reduction in prey ...
Tristan Berr +7 more
wiley +1 more source
Utilizando espécimes juvenis de Prochilodus scrofa, foram registradas alterações agudas no baço de indivíduos expostos ao organofosforado Dipterex 500 (Trichlorfon). A concentração utilizada foi de 0,2 µL/Iitro de água de diluição.
Edson de Lara RODIRGUES +4 more
doaj
Dung beetles suppressed cumulative methane flux from cattle dung by 85% and reduced total greenhouse gas emissions by 18%. Beetle activity accelerated initial CO2 release but did not alter total cumulative flux. N2O and NH3 fluxes were transient and not consistently driven by beetle presence.
Jean Holley +2 more
wiley +1 more source
El uso de trampas cámaras como herramienta de evaluación y conservación de mamíferos silvestres
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Mario Arosemena Z.
doaj
Esta investigación se realizó en la ciudadela “3 de Mayo” con una población de 7.906 habitantes, su clima es tropical seco con una temperatura de 24 °C, sus hábitos y costumbres están arraigados en aspectos culturales, históricos y folclóricos, pertenece
Miguel Ángel Osejos Merino +2 more
doaj +1 more source
Green Hydrogen in Brazilian Media: Dominant Narratives and Missing Dimensions of the Energy Trilemma
ABSTRACT Media discourses help shape the visibility and legitimacy of energy transition pathways in the public sphere. This study examines how Brazilian mainstream newspapers framed green hydrogen and assesses the alignment of these narratives with the energy trilemma: energy security, environmental sustainability, and social accessibility. We analyzed
Flávia Mendes de Almeida Collaço +3 more
wiley +1 more source
An increase in surface area is not always an advantage for photoanodes; mesoporous TiO2 photoelectrodes present lower photoelectrocatalytic performance in oxygen evolution reaction due to a higher density of surface states that promote recombination, especially under frontal illumination.
Michael Zuarez‐Chamba +6 more
wiley +1 more source
Este trabalho apresenta os resultados da avaliação qualitativa de impactos ambientais na etapa de implantação florestal, considerando-se as atividades de limpeza e preparo do terreno, por meio da aplicação dos métodos de matriz de identificação e ...
Márcia Nágem Krag +5 more
doaj +1 more source

