Results 1 to 10 of about 53,309 (158)

GENETIC PARAMETERS FOR Hymenaea courbaril L. CONSERVATION IN SOUTHWESTERN AMAZON [PDF]

open access: yesCiência Florestal, 2014
http://dx.doi.org/10.5902/1980509813326The loss of diversity in tropical regions has been focus on several governmental and non-governmentaldiscussions, focusing mainly on the fragmentation and destruction of natural ecosystems.
Susana Maria Melo Silva   +3 more
doaj   +3 more sources

Divergência genética entre cultivares locais e cultivares melhoradas de feijão [PDF]

open access: yesPesquisa Agropecuária Brasileira, 2002
A grande variabilidade genética presente no germoplasma de feijão (Phaseolus vulgaris L.) em uso na agricultura familiar no Brasil tem sido plenamente reconhecida.
Lessandra Silva Rodrigues   +3 more
doaj   +5 more sources

Unveiling the Dietary Selection of Lowland Tapirs (<i>Tapirus terrestris</i>) in a Tropical Rainforest. [PDF]

open access: yesEcol Evol
Large terrestrial herbivores, such as lowland tapirs (Tapirus terrestris) present many dietary ecological roles in their habitat. In this article, we investigated the diet of lowland tapirs in a tropical rainforest combining different techniques such as DNA metabarcoding, fieldwork, and plant functional traits.
Lautenschlager L   +9 more
europepmc   +2 more sources

Fine-tuning the buzz: comparing visitation frequency and pollination effectiveness in plant-pollinator networks. [PDF]

open access: yesNew Phytol
Summary Ecological network approaches have advanced our understanding of how species interactions influence community and evolutionary dynamics. However, a key limitation is that most network analyses rely solely on visitation data, often overlooking functional aspects of interactions.
Valadão-Mendes LB   +4 more
europepmc   +2 more sources

Patterns of Interploidy Admixture in Polyploid Complexes: Insights From Thymus Sect. Mastichina (Lamiaceae). [PDF]

open access: yesMol Ecol
ABSTRACT Understanding gene flow between ploidy levels in polyploid complexes is essential for species delimitation and conservation. This study explores evolutionary dynamics in the polyploid complex Thymus sect. Mastichina (Lamiaceae), comprising three taxa: T. mastichina subsp. mastichina, T. mastichina subsp.
García-Cárdenas FJ   +7 more
europepmc   +2 more sources

Estratégia para conservação genética de espécies florestais prioritárias na amazônia. [PDF]

open access: yesActa Amazonica, 1987
O principal objetivo deste trabalho foi obter informações fidedígnas sobre a situação em que se encontram as principais espécies florestais da região amazônica, com vistas a uma avaliação dos recursos genéticos florestais.
José Alves da Silva   +2 more
doaj   +1 more source

A importância das unidades de conservação na manutenção da diversidade genética de xaxim Dicksonia sellowiana no Estado de Santa Catarina

open access: yesBiodiversidade Brasileira, 2012
Dicksonia sellowiana Presl. (Hooker) (Dicksoniaceae), conhecida como xaxim, é uma pteridófita arborescente, nativa da Mata Atlântica e característica da tipologia Floresta Ombrófila Mista.
Tiago Montagna   +7 more
doaj   +3 more sources

The Complete Mitogenome of Amazonian Hyphessobrycon heterorhabdus (Characiformes: Characidae) as a Valuable Resource for Phylogenetic Analyses of Characidae

open access: yesFishes, 2023
Hyphessobrycon heterorhabdus (Ulrey, 1894), popularly known as ‘Flag Tetra’ in English speaking countries, belongs to the genus Hyphessobrycon of the family Characidae, and is widely present in the eastern Amazon basin.
Luciano Fogaça de Assis Montag   +16 more
doaj   +1 more source

Indicadores de sustentabilidade para conservação genética de Erythrina velutina Willd., em área de mata ciliar [PDF]

open access: yesRevista Árvore, 2014
Um dos grandes desafios para o sistema agropecuário é estabelecer a produção agrícola aliada à conservação dos recursos genéticos, principalmente visando à proteção de Áreas de Preservação Permanente.
Danilla Cristina Lemos Souza   +2 more
doaj   +3 more sources

Use of Molecular Genetic Methods to Reduce the Risk of Incorrect Identification of Fish Strains in Brazilian Aquaculture

open access: yesFrontiers in Genetics, 2021
The identification of fish species using traditional methods is generally based only on morphological characteristics and these methods are currently under review.
Luana Maria Deoclécio da Silva   +5 more
doaj   +1 more source

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