Results 111 to 120 of about 41,039 (215)

Application of RIAM to the environmental impact assessment of hydroelectric installations [PDF]

open access: yes, 2007
This paper evaluates an Environmental Impact Assessment (EIA) using the Rapid Impact Assessment Matrix (RIAM). It analyses and presents in a structured, friendly and transparent environment the numerous parameters and alternatives of an EIA.
Araújo, Paulo S. F.   +2 more
core  

Simulium (Psaroniocompsa) tergospinosum new species (Diptera: Simuliidae) in siolii group from the southern part of the State of Amazonas, Brazil

open access: yesMemorias do Instituto Oswaldo Cruz, 2000
The larva, pupa, male and female of Simulium tergospinosum n. sp. are described and illustrated. The adults of this new species share many characters with species in the subgenus Psaroniocompsa, where it is placed.
Neusa Hamada
doaj   +1 more source

Population Dynamics of Cyrtobagous salviniae on Common Salvinia in South Florida [PDF]

open access: yes, 2005
Common salvinia (Salvinia minima Baker) is an exotic floating fern that has been in the U.S. from at least 1928(Small 1931). Its pest status in Florida is less clear perhaps due to the presence of the specialized herbivore Cyrtobagous salviniae ...
Center, T.D., Tipping, Philip W.
core  

Discourse and Sense about to the Madeira River, Porto Velho, RO

open access: yesPorto das Letras, 2023
Um rio carrega muitas formas de sentidos em seu curso. Tradicionalmente, as povoações sempre procuraram as margens de águas doces para se formarem. No caso da Amazônia, os rios são muito mais que fonte de alimentação. São a vida em si, o transporte, a comunicação, a formação da cultura ribeirinha e a riqueza do contato homem e natureza.
openaire   +1 more source

Quantitative impacts of hydroelectric dams on the trans‐Amazonian migrations of goliath catfish

open access: yesConservation Letters
Hydropower expansion is increasingly responsible for connectivity and biodiversity loss in freshwater ecosystems. The Amazon basin, which supports the highest level of freshwater biodiversity globally, faces such unplanned expansion. Here, we demonstrate
Marília Hauser   +9 more
doaj   +1 more source

Mercury in Florida Bay fish: spatial distribution of elevated concentrations and possible linkages to Everglades restoration [PDF]

open access: yes, 2005
Health advisories are now posted in northern Florida Bay, adjacent to the Everglades, warning of high mercury concentrations in some species of gamefish.
Crumley, Peter H., Evans, David W.
core  

My Land Is My Flesh Silver Bluff, the Creek Indians, and the Transformation of Colonized Space in Early America [PDF]

open access: yes, 2018
This essay explores how Native peoples like the Creek (Muscogee) Indians invested colonized spaces in early American society with their own material, commercial, political, and spiritual meanings and importance. In particular, Creek Indians from the town
Rindfleisch, Byron
core   +1 more source

Market analysis for Acrean timbers [PDF]

open access: yes
In the state of Acre (Brazil), keys of development are the valorization of natural resources, which include non-ligneous and timber products. The need to develop a sustainable wood industry lead to assess markets that can be targeted from Acre in an ...
Jean-Marc Roda
core  

Ergasilus holobryconis sp.n., a crustacean parasite of Holobrycon pesu (MÜLLER & TROSCHELL), a fish from the Brazilian Amazon (Copepoda: Poecilostom-atoida: Ergasilidae)

open access: yes, 1986
The female of Ergasilus holobryconis n. sp. (Copepoda: Poecilostomatoida: Ergasilidae) is described from the branchial cavities of an Amazon fish, Holobrycon pesu (MÜLLER & TROSCHELL) collected in the Ji-Paraná (Machado) river, tributary of Madeira river,
de Oliveira Malta, J., Varella, A.
core  

Dynamics of forest conversion and climate trends in the Madeira river basin

open access: yes, 2022
A bacia do rio Madeira constitui um exemplo de porção importante da região amazônica que se caracteriza por alta taxa de conversão de floresta em pastagens e núcleos urbanos, evidenciando transformação acelerada na cobertura e uso do solo com atividade antrópica significativa ao longo das três últimas décadas, o que configura potencial impacto quanto à
Souza, Vinicius Alexandre Sikora de   +5 more
openaire   +1 more source

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