Results 21 to 30 of about 47,879 (295)

Chillcottomyia Saigusa new to Europe (Diptera, Empidoidea, Hybotidae) [PDF]

open access: yesEvolutionary Systematics
A new species of Chillcottomyia Saigusa, 1986 is described from Portugal, C. ovaticornis sp. nov. This species represents the first record of Chillcottomyia from Europe.
Bradley J. Sinclair   +2 more
doaj   +3 more sources

New records of Pelecinus polyturator (Drury) (Hymenoptera: Proctotrupoidea: Pelecinidae) for Brazil

open access: yesRevista Chilena de Entomología, 2020
Species of Pelecinidae are very uncommonly collected in Brazil, despite they are one of the largest and most remarkable species of Hymenoptera. Here in, we report new records of Pelecinus polyturator (Drury, 1773) for Acre, Maranhão (Amazon rainforest ...
Ana F. A. Sousa   +3 more
doaj   +1 more source

Comparative measurements of carbon dioxide fluxes from two nearby towers in a central Amazonian rainforest: the Manaus LBA site [PDF]

open access: yes, 2002
Forests around Manaus have staged the oldest and the longest forest-atmosphere CO2 exchange studies made anywhere in the Amazon. Since July 1999 the exchange of CO2, water, and energy, as well as weather variables, have been measured almost continuously ...
Araújo, A.C.   +11 more
core   +2 more sources

Spatial Interpolation of Air Pollutant and Meteorological Variables in Central Amazonia

open access: yesData, 2021
The Amazon Rainforest is highlighted by the global community both for its extensive vegetation cover that constantly suffers the effects of anthropic action and for its substantial biodiversity. This dataset presents data of meteorological variables from
Renato Okabayashi Miyaji   +6 more
doaj   +1 more source

Microbial responses to changes in land use [PDF]

open access: yes, 2011
Background/Question/Methods Land use change is one of the greatest threats to biodiversity worldwide. This is especially true for land use change that results in the destruction of intact forest, or "deforestation”.
Brendan Bohannan   +6 more
core   +2 more sources

Influence of drainage status on soil and water chemistry, litter decomposition and soil respiration in central Amazonian forests on sandy soils [PDF]

open access: yes, 2011
Central Amazonian rainforest landscape supports a mosaic of tall terra firme rainforest and ecotone campinarana, riparian and campina forests, reflecting topography-induced variations in soil, nutrient and drainage conditions.
Berton Zanchi, F.   +4 more
core   +2 more sources

Export of ice-nucleating particles from watersheds: results from the Amazon and Tocantins river plumes

open access: yesRoyal Society Open Science, 2023
We examined ice-nucleating particles (INPs) in the plumes of the Tocantins and Amazon rivers, which drain watersheds with different proportions of degraded land.
Annika Einbock   +3 more
doaj   +1 more source

Effects of forest fragmentation on the vertical stratification of neotropical bats [PDF]

open access: yes, 2020
Vertical stratification is a key component of the biological complexity of rainforests. Understanding community- and species-level responses to disturbance across forest strata is paramount for evidence-based conservation and management.
Farneda, F   +4 more
core   +4 more sources

Acid rain in an Amazon rainforest [PDF]

open access: yesTellus B, 1983
Acid rain is reported from the Amazon territory of Venezuela. The volume weighted average pHwas 4.7 for 70 storms sampled from January 1979 through February 1980. At this location,remote from point sources of industrial pollution, acid rain might result from naturalbiogeochemical processes in the rainforest, from global atmospheric pollution, or from ...
Haines, Bruce   +3 more
openaire   +2 more sources

Acanthosyris annonagustata C.Ulloa & P.Jørg. (Santalaceae), newly recorded for the flora of Peru [PDF]

open access: yesCheck List, 2021
We report Acanthosyris annonagustata (Santalaceae) for the flora of Peru, from an Amazon rainforest site in Madre de Dios Department. We describe the species using leaf and fruit morphological traits from field observations and botanical vouchers, and we
Jean Paúl Latorre-Farfán, Varun Swamy
doaj   +3 more sources

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