Results 41 to 50 of about 66,692 (218)

Sistemas tradicionais de manejo de sementes crioulas e o cenário brasileiro de proteção de variedades e certificação de orgânicos: estudo de caso da Rede Agroecológica Metropolitana de Porto Alegre, Rio Grande do Sul

open access: yesDesenvolvimento e Meio Ambiente, 2016
The traditional management systems of landrace seeds have undergone transformations in the current Brazilian scenario of protection of varieties and organic certifications.
Mariana Luiz Proença   +1 more
doaj   +1 more source

Relação entre mudanças no uso da terra e o relevo em uma área piloto da zona da mata sul de Pernambuco. [PDF]

open access: yes, 2015
A identificação, a interpretação, a organização e a espacialização de características ambientais tais como: solos, relevo, clima, uso e ocupação, entre outras, numa escala adequada, são de fundamental importância quando se pretende elaborar uma ...
ACCIOLY, L. J. de O.   +7 more
core  

Balancing tracks and trees: Assessing railroad impact on Brazilian biodiversity

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
The Brazilian West–East Integration Railway (FIOL) aims to boost the national economy by improving commodity transport; however, it crosses three of Brazil's most biodiverse and fragile regions: the Caatinga, Cerrado and Atlantic Forest. Using digitised plant records and land‐use analyses, our study reveals significant vegetation loss within the ...
Ana Luiza Silva Rocha   +3 more
wiley   +1 more source

Assessing group size and the demographic composition of a canopy‐dwelling primate, the northern muriqui (Brachyteles hypoxanthus), using arboreal camera trapping and genetic tagging

open access: yesRemote Sensing in Ecology and Conservation, EarlyView.
We combined arboreal camera trapping and non‐invasive genetic tagging to estimate group size in the critically endangered northern muriqui (Brachyteles hypoxanthus) in Brazil's Atlantic Forest. Both methods provided complementary insights into group size and demographic structure, while differing in their cost‐effectiveness and sampling constraints ...
Mariane C. Kaizer   +7 more
wiley   +1 more source

New records and range extension of the recently reestablished Lamanonia ulei (Engl.) L.B. Sm. (Cunoniaceae): notes on taxonomy and conservation [PDF]

open access: yesCheck List, 2020
We report new records of the recently reestablished Lamanonia ulei (Engl.) L.B.Sm. (Cunoniaceae) from southeastern Brazil. This species is currently known by only eight specimens from Minas Gerais, Rio de Janeiro, and São Paulo states.
Fernanda Santos-Silva   +3 more
doaj   +3 more sources

Urban Forests and Environmental Challenges in the Last Decades in Brazil: Insights for the National Urban Forestry Plan

open access: yesSustainable Development, EarlyView.
ABSTRACT National afforestation policies are crucial for outlining guidelines and goals to be implemented at the local level. Therefore, it is crucial to conduct research that systematizes indicators from across the country into a single proposal. This study examines the spatiotemporal distribution of urban forest research in Brazil from 1980 to 2020 ...
Mauricio Lamano Ferreira   +5 more
wiley   +1 more source

Registros nuevos y comentarios taxonómicos en Acanthaceae, Apocynaceae, Aristolochiaceae, Asteraceae y Monimiaceae para el bosque tropical Atlántico de Brasil

open access: yesRevista Mexicana de Biodiversidad, 2023
Se reportan nuevos registros de Aristolochia stomachoides, Macropeplus ligustrinus, Mollinedia heteranthera, M. lamprophylla, M. puberula, Odontadenia gracilipes, Pseuderanthemum congestum, Ruellia subsessilis y Senecio madagascariensis, presentes en el
Danilo A. Zavatin   +5 more
doaj   +1 more source

Lessons from an eradication under multiple constraints of an island rat population of record density

open access: yesConservation Biology, EarlyView.
Abstract Invasive rats threaten island biodiversity, disrupting ecosystems and endangering native species. Although rat eradication has succeeded on many islands, tropical islands present unique management challenges. Strict regulations and financial constraints on some tropical islands further limit proven eradication methods, complicating rodent ...
Tatiane Micheletti   +7 more
wiley   +1 more source

Fluctuating asymmetry in spider‐hunting wasps as a possible indicator of stress in Brazilian Atlantic Forest landscapes Assimetria flutuante em vespas caçadoras de aranhas como possível indicador de estresse em paisagens da Mata Atlântica brasileira

open access: yesEcological Entomology, EarlyView.
Agricultural cover was positively associated with fluctuating asymmetry in Trypoxylon opacum, suggesting a possible increase in developmental instability in intensively managed landscapes. Wing size was positively related to forest cover and negatively related to agricultural cover, indicating that forested landscapes may promote larger body size ...
Luana Vieira Carlin dos Santos   +3 more
wiley   +1 more source

Range extension of Lonchophylla peracchii (Chiroptera, Phyllostomidae) to Northeastern Brazil [PDF]

open access: yesCheck List, 2016
Lonchophylla peracchii was recently described from Rio de Janeiro Atlantic Forest samples previously assigned to either L. bokermanni Sazima, Vizotto & Taddei, 1978 or L. mordax Thomas, 1903.
Daniela Dias   +2 more
doaj   +3 more sources

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