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Recursos naturais do Brasil

open access: yesConfins, 2022
Reproduzimos abaixo, por sugestão do autor do livro, a apresentação muito clara e precisa do livro de Jurandyr Luciano Sanches Ross, e algumas das suas numerosas ilustrações.
Confins, Confins,
openaire   +3 more sources

Valoração econômico­ecológica de recursos naturais [PDF]

open access: yesGestión y Ambiente, 2009
O presente trabalho visa mostrar quais as soluções que têm sido propostas para superar o que se considera como limitações importantes dos processos de valoração ambiental correntemente em uso. Os pressupostos teóricos e os procedimentos metodológicos da valoração ambiental e da valoração econômico­ ecológica são confrontados. Procura­ se mostrar que os
Ribeiro Romeiro, Ademar   +1 more
openaire   +4 more sources

Influence of Mating Systems, Contemporary Niches, and Historical Demography on the Genetic Patterns of Flagship Plants From the Amazonian <i>Cangas</i>. [PDF]

open access: yesEvol Appl
ABSTRACT Genetic diversity is shaped by multiple factors, including life‐history traits, contemporary range distributions, niche constraints, and historical demography. The interplay of these drivers remains largely unexplored, particularly at scales proven to be relevant to conservation management of tropical biodiversity hotspots.
Leal BSS   +11 more
europepmc   +2 more sources

Ocorrência, evolução anual de incêndios e queimadas no Brasil entre 2003 e 2018 e relação com desmatamento

open access: yesBiodiversidade Brasileira, 2019
Na Amazônia, as áreas conhecidas como "Arco do Desmatamento" concentram os incêndios florestais e queimadas no Brasil. O desmatamento e a degradação de florestas por incêndios e queimadas são os processos responsáveis pela maior parte das emissões ...
Rossano Marchetti Ramos   +3 more
doaj   +3 more sources

Future Projections of Extreme Precipitation Climate Indices over South America Based on CORDEX-CORE Multimodel Ensemble

open access: yesAtmosphere, 2022
Climate change is undeniable, and its effects, like droughts and intense precipitation, evidence this reality. However, many questions remain unanswered, such as climate extremes’ future frequency and intensity.
Michelle Simões Reboita   +5 more
doaj   +1 more source

DNA barcoding uncovers two putative new species in Trachelyopterus (Siluriformes: Auchenipteridae). [PDF]

open access: yesJ Fish Biol
Abstract Trachelyopterus is a cryptic genus within the Neotropical catfish family Auchenipteridae with a complex history of taxonomic revisions. Despite the notable morphological and genetic similarities among its species, some studies suggest that the genus harbours greater diversity than is currently recognized, including additional species yet to be
Cerqueira FJ   +9 more
europepmc   +2 more sources

Population genetics of 5 STR loci (CD4, TPO, VWA, F13A1 and MBPB) in S. Miguel Island (Azores, Portugal)

open access: yesAntropologia Portuguesa, 2004
A study of five Short Tandem Repeat (STR) loci was undertaken using samples of unrelated individuals with Azorean ancestry, born in the island of S. Miguel.
Catarina Silva   +3 more
doaj   +1 more source

Emergence and growth of maize submitted to inoculant doses associated with saline water irrigation

open access: yesPesquisa Agropecuária Tropical, 2020
Salinity, in general, affects the plant growth and development, making it a limiting problem for the agricultural production. This study aimed to evaluate the effect of inoculant doses of Azospirillum brasilense on the emergence and growth of ...
Hallyson Oliveira   +4 more
doaj   +1 more source

Evaluation of Metabolites and Amino Acids Assimilation by Yeast FT-858 in Saccharine Substrates for the Production of Bioethanolroduction

open access: yesOrbital: The Electronic Journal of Chemistry, 2019
 Yeasts are exposed to stressing agents in the fermentation process. The study aims to analyze the production of ethanol and intracellular glycerol, as well as to evaluate the consumption of amino acids by yeast FT-858 in different culture conditions ...
Larissa Pires Mueller   +3 more
doaj   +3 more sources

Queima técnica de roças e o conhecimento indígena do uso do fogo no lavrado de Roraima - Brasil

open access: yesBiodiversidade Brasileira, 2019
O modelo de agricultura preponderante em terras indígenas na Amazônia e por extensão no estado de Roraima preconiza a derrubada da vegetação de pequenas áreas, geralmente em florestas, ilhas de matas e matas ciliares, seguido pela queima desse ...
Joaquim Parimé Pereira Lima   +1 more
doaj   +3 more sources

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