Results: 303

Water quality in the Lachuá Ecoregion Landscape: Comparing streams from Forest, Milpa, and an Oil Palm plantation

Cienc. tecnol. salud; 9 (1), 2022
The hydrological network in the Lachuá Ecoregion (EL), Alta Verapaz, Guatemala, hosts high levels of biodiversity and supplies water to 44 Mayan communities. Despite this critical fact, this network has been threatened by scarcely monitored industrial activities including the rapidly expanding oil palm ...

Effects of nitrogen and phosphorus availability on the early growth of two congeneric pairs of savanna and forest species

Braz. j. biol; 82 (), 2022
In the tropical region, savannas and seasonal forests, both highly diverse biomes, occur side by side, under the same climate. If so, that mosaic cannot be explained solely by climatic variables, but also by fire, water availability and soil status. Nutrient availability in the soil, especially nitrogen ...

Anadenanthera colubrina (Fabaceae) logs in the Atlantic Forest biome: first host plant for Thoracibidion lineatocolle (Col: Cerambycidae) and a new host for Temnopis megacephala (Col: Cerambycidae)

Braz. j. biol; 82 (), 2022
Wood-boring beetles develop in live trees and dead wood, performing ecological services such as decomposition and regulation of forest resources. Species of the Cerambycidae family, widely distributed in the world, bore into the trunks of trees and dead wood in native and cultivated areas. The objective ...

Regional concentration of native fuelwood production in Rio Grande do Norte, Brazil (1990–2017)

Ciênc. rural (Online); 52 (10), 2022
This paper examined the regional concentration of native fuelwood production in Rio Grande do Norte, Brazil, between 1990-2017. Information on native fuelwood was gathered from forestry activities collected by the Brazilian Institute of Geography and Statistics (IBGE). This study analyzed the current sit...

Filamentous fungi occurrence on Molossus molossus (Pallas, 1766) (Chiroptera: Molossidae) present in an Atlantic Forest remnant in Southern Brazil

Braz. j. biol; 81 (4), 2021
Abstract The bats usually inhabit shelters with favorable conditions for fungal proliferation, including pathogenic and opportunistic species. The fungal diversity present on bats is little known and the studies are scarce in Brazil, which only a work has been performed in Cerrado and Pantanal biomes. Th...

Reflexiones sobre las perspectivas de sostenibilidad ambiental e institucional para la planeación territorial de los sistemas socioecológicos de páramo y bosque altoandino en colombia

Investig. desar; 29 (2), 2021
Resumen Los sistemas socioecológicos (SSE) de páramo y bosque altoandino en Colombia son sistemas ecológicos que se caracterizan por sus particularidades de estructura, composición y funcionamiento. Son espacios que se han desarrollado como parte de procesos históricos de relación entre los humanos...

A interiorização da covid-19 na Amazônia: reflexões sobre o passado e o presente da saúde pública

Resumo A partir de contribuições teóricas do campo da história das ciências, o presente texto debate aspectos das etapas das pandemias entendidas como fenômeno social e como tem ocorrido o processo de interiorização da covid-19 na Amazônia. A chegada da doença aos vastos territórios da florest...

Avaliando a redução do tamanho do conglomerado para estimar o volume de madeira em uma floresta amazônica
Assessing reduction of cluster size to estimate wood volume in an Amazonian forest

Acta amaz; 51 (3), 2021
Enquanto o Inventário Florestal Nacional Brasileiro (IFN) está em andamento, há uma demanda crescente para entender o efeito da área do conglomerado sobre a exatidão e precisão da estimativa de atributos florestais. O objetivo deste estudo foi determinar a área mínima de um conglomerado para es...

Abelhas das orquídeas em fragmentos de floresta ripária e de terra-firme em uma matriz urbana no sudoeste da Amazônia brasileira
Orchid bees in riparian and terra-firme forest fragments in an urban matrix in southwestern Brazilian Amazonia

Acta amaz; 51 (3), 2021
As florestas ripárias no Brasil são importantes ecossistemas que sustentam uma enorme biodiversidade. Apesar de protegidas pela legislação brasileira, elas têm sofrido grandes impactos decorrentes da fragmentação florestal. As abelhas das orquídeas constituem um grupo chave de polinizadores na ...