Results 21 to 30 of about 33,155 (312)

Evaluating spatial coverage of data on the aboveground biomass in undisturbed forests in the Brazilian Amazon

open access: yesCarbon Balance and Management, 2019
Background Brazilian Amazon forests contain a large stock of carbon that could be released into the atmosphere as a result of land use and cover change. To quantify the carbon stocks, Brazil has forest inventory plots from different sources, but they are
Graciela Tejada   +4 more
doaj   +1 more source

Insects of the Subfamily Scolytinae (Insecta: Coleoptera, Curculionidae) Collected with Pitfall and Ethanol Traps in Primary Forests of Central Amazonia

open access: yesPsyche: A Journal of Entomology, 2012
An experiment was conducted in a primary forest area of the Tropical Forest Experimental Station, 45 km from Manaus-Boa Vista Highway, in order to compare the insect fauna of the subfamily Scolytinae, in flight activity and on the ground.
Raimunda Liege Souza de Abreu   +3 more
doaj   +1 more source

Optimal selective logging regime and log landing location models: a case study in the Amazon forest [PDF]

open access: yesActa Amazonica, 2018
Reduced-impact logging is a well known practice applied in most sustainable forest management plans in the Amazon. Nevertheless, there are still ways to improve the operational planning process.
Paulo Henrique da SILVA   +4 more
doaj   +2 more sources

Effects of habitat loss on Brazilian primates: assessing extinction thresholds in the Amazon and Atlantic Forest

open access: yesPerspectives in Ecology and Conservation, 2023
Habitat loss has major impacts on biodiversity. Yet, such impacts are not always linear, as there can be threshold values of habitat amount below which species become extirpated from human-modified landscapes (extinction thresholds).
Carmen Galán-Acedo   +5 more
doaj   +1 more source

Height-diameter allometry of tropical forest trees [PDF]

open access: yes, 2010
Tropical tree height-diameter (H:D) relationships may vary by forest type and region making large-scale estimates of above-ground biomass subject to bias if they ignore these differences in stem allometry.
Banin, Lindsay   +218 more
core   +1 more source

Preliminary notes on the macrolichens of Serra do Cachimbo, northcentral Brazil [PDF]

open access: yesActa Amazonica, 1985
This paper reports on the April-May 1983 Projeto Flora expedition to Serra do cachimbo in northcentral Brazil, a phytogeographically poorly known area near the transition between the Amazon forest and the central Brazilian planalto. The objective of this
Lois Brako   +2 more
doaj   +1 more source

Urbanização e planejamento da Amazônia: diálogos com Bertha Becker

open access: yesConfins, 2023
The aim is to understand the urbanization and planning of the Amazon based on the contributions of Bertha Becker. In the first moment, the urban phenomenon is considered from the Amazon in the books published in the 1980s and 1990s by Bertha Becker ...
Eudes Leopoldo
doaj   +1 more source

Migration and forests in the Peruvian Amazon: A review [PDF]

open access: yes, 2019
This paper reviews the literature on the links between migration and forests in the Peruvian Amazon. It highlights\ud not only the complexity of the migrant–forest interface in Peru but also the relative lack of research on these\ud dynamics. Historically, official narratives point to migrants as both the culprits of, and solutions to, the Amazon’s ...
Menton, Mary, Cronkleton, Peter
openaire   +1 more source

River dataset as a potential fluvial transportation network for healthcare access in the Amazon region

open access: yesScientific Data, 2023
Remote areas, such as the Amazon Forest, face unique geographical challenges of transportation-based access to health services. As transportation to healthcare in most of the Amazon Forest is only possible by rivers routes, any travel time and travel ...
Thiago Augusto Hernandes Rocha   +8 more
doaj   +1 more source

La forêt guyanaise, entre valorisation et protection des ressources écosystémiques

open access: yesVertigO, 2012
Forests in French Guiana form an extremely complex ecosystem and have a wealth of flora and fauna of great diversity. During a long time, the exploitation of resources inside and outside the ecosystem was insignificant and was never considered in a ...
André Calmont
doaj   +1 more source

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