Results 21 to 30 of about 5,931 (210)

Soil CO2 efflux in central Amazonia: environmental and methodological effects [PDF]

open access: yesActa Amazonica, 2012
Soil respiration plays a significant role in the carbon cycle of Amazonian rainforests. Measurements of soil respiration have only been carried out in few places in the Amazon. This study investigated the effects of the method of ring insertion in the soil as well as of rainfall and spatial distribution on CO2 emission in the central Amazon region. The
Zanchi, F.B.   +6 more
openaire   +6 more sources

Treetop shelter of a neotropical river otter cub (Lontra longicaudis - Carnivora: Mustelidae) in an Amazonian flooded forest Abrigo em copa de árvore de filhote de lontra neotropical (Lontra longicaudis - Carnivora: Mustelidae) em floresta inundável amazônica

open access: yesActa Amazonica, 2007
The finding of a Neotropical river otter (Lontra longicaudis) cub occupying a shelter in a hollowed treetop is reported. The observation was made in a seasonally flooded forest in Central Amazonia, during the high water peak of the annual inundation ...
Pedro Manuel Ribeiro Simões dos Santos   +2 more
doaj   +1 more source

Seasonality of isoprenoid emissions from a primary rainforest in central Amazonia [PDF]

open access: yesAtmospheric Chemistry and Physics, 2016
Abstract. Tropical rainforests are an important source of isoprenoid and other volatile organic compound (VOC) emissions to the atmosphere. The seasonal variation of these compounds is however still poorly understood. In this study, vertical profiles of mixing ratios of isoprene, total monoterpenes and total sesquiterpenes, were measured within and ...
E. G. Alves   +15 more
openaire   +5 more sources

Primates of the Tef�� National Forest, Central Amazonia

open access: yes, 2021
The Amazon rainforest is the most diverse Brazilian biome regarding primate diversity, with 77% of the 139 taxa described for Brazil. Despite its ecological importance, Amazonian biodiversity is relatively unknown. The objective of this study is to present the results of an inventory of primates in the National Forest of Tef , Brazil, including its ...
Rossato, Rafael Suertegaray Rossato   +4 more
openaire   +1 more source

Descrição de duas espécies novas de Pselaphinae (Coleoptera: Staphylinidae) da Amazônia Central Brasileira [PDF]

open access: yesActa Amazonica, 1998
Duas espécies novas de Pselaphinae (Coleoptera: Staphylinidae) da Amazônia Central Brasileira são descritas e ilustradas: Metopiosoma carinata sp. n. e Rhytus amazonicum sp. n.
Heliana R. N OLIVEIRA   +1 more
doaj   +1 more source

Association of Oxelytrum cayennense (Silphidae, Coleoptera) with Pig Carcasses (Sus scrofa, Suidae) in Terra Firme Areas in Manaus, Amazonas, Brazil

open access: yesEntomoBrasilis, 2010
Colonization aspects of the carrion beetle Oxelytrum cayennense (Sturm) in man-size pig carcasses (~60 kg) are presented at Adolpho Ducke Forest Reserve, Manaus, Brazil. This species colonized pig carcasses from bloated to skeletonized stages.
Alexandre Ururahy-Rodrigues   +6 more
doaj   +2 more sources

New species and new records of Manota Williston from Colombia, Brazilian Amazonia, and Costa Rica (Diptera, Mycetophilidae)

open access: yesZooKeys, 2017
The following five species are described as new: Manota clava sp. n. (Colombia), Manota multilobata sp. n. (Colombia), Manota perplexa sp. n. (Costa Rica), Manota setilobata sp. n. (Colombia) and Manota subaristata sp. n. (Colombia).
Olavi Kurina   +2 more
doaj   +3 more sources

ONGs, expertise e o mercado do desenvolvimento sustentável: a certificação florestal na Amazônia brasileira

open access: yesNovos Cadernos NAEA, 2008
This paper analizes the process of the construction of the Forestry certification – the label of the Forest Stewardship Council (FSC) – as a mechanism to combat the predatory exploitation of the natural resources from the Brazilian Amazonia.
Marcelo Sampaio Carneiro
doaj   +1 more source

Human Impacts on Primate Conservation in Central Amazonia [PDF]

open access: yesTropical Conservation Science, 2008
Deforestation in the Amazon is a serious environmental, economic, and social concern. This article examines how a colonization plan to bring 180 families to an area north of Manaus, Brazil, would negatively impact the conservation of the six primate species residing in the area.
openaire   +1 more source

Andean Mountain Building Did not Preclude Dispersal of Lowland Epiphytic Orchids in the Neotropics

open access: yesScientific Reports, 2017
The Andean uplift is one of the major orographic events in the New World and has impacted considerably the diversification of numerous Neotropical lineages.
Oscar Alejandro Pérez-Escobar   +6 more
doaj   +1 more source

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