Results 31 to 40 of about 460 (64)

A contribuição da genética no estudo das populações de camarão sete-barbas do litoral brasileiro

open access: yesBoletim do Instituto de Pesca, 2018
Estudos genéticos podem fornecer diversas informações importantes para o manejo sustentável da pesca, tendo um relevante papel na identificação de estoques geneticamente distintos.
Jaqueline GUSMÃO   +2 more
doaj  

PARÂMETROS GENÉTICOS E GANHOS NA SELEÇÃO EM TESTE DE PROGÊNIES DE POLINIZAÇÃO ABERTA DE Eucalyptus pellita, EM BATATAIS−SP

open access: yesRevista do Instituto Florestal, 2010
Os objetivos deste estudo foram estimar parâmetros genéticos, ganhos na seleção e avaliar o desenvolvimento silvicultural da espécie em um teste de progênies de Eucalyptus pellita, aos 23 anos de idade, estabelecido em Batatais, SP.
Marcelo Zanata   +5 more
doaj   +1 more source

Clarifying the Labrisomus Conundrum: Deep Divergence, Cryptic Lineages, and a Genetic Melting Pot in the Atlantic Ocean (Teleostei, Labrisomidae)

open access: yesJournal of Biogeography, Volume 53, Issue 8, August 2026.
ABSTRACT Aim We evaluate the phylogenetic relationships and taxonomic validity of Atlantic species of Labrisomus, identifying the lineages currently assigned to L. nuchipinnis, and assessing the role of biogeographic barriers in shaping the evolutionary history and geographic distribution of the genus. Location Atlantic Ocean.
Gabriel Soares Araujo   +8 more
wiley   +1 more source

REPRODUCTIVE SYSTEM AND POLLEN FLOW IN PROGENIES OF Qualea grandiflora Mart., A TYPICAL SPECIES OF THE BRAZILIAN CERRADO

open access: yesRevista Árvore, 2015
This study analyzed the reproductive system and the pollen dispersion pattern of Qualea grandiflora progenies. This is a typical species from the Brazilian Cerrado about which there are not too many studies from the genetics point of view.
Lia Maris Orth Ritter Antiqueira   +1 more
doaj   +1 more source

Spatial Scale Modulates the Effect of Habitat Amount on Diversity Patterns of Arachnid Assemblages Across Different Brazilian Ecosystems

open access: yesJournal of Biogeography, Volume 53, Issue 8, August 2026.
ABSTRACT Aim We evaluated how native vegetation cover influences the diversity of arachnid assemblages across multiple spatial scales in major Brazilian ecosystems. Location Brazil (Amazon and Atlantic rainforests, Cerrado savanna and Caatinga dry forest). Taxon Arachnida (Opiliones, Pseudoscorpiones and Scorpiones). Methods We sampled arachnids at 120
André F. A. Lira   +26 more
wiley   +1 more source

CONSERVAÇÃO GENÉTICA EX SITU DE Esenbeckia leiocarpa, Myracrodruon urundeuva E Peltophorum dubium EM TESTE DE PROGÊNIES MISTO

open access: yesRevista do Instituto Florestal, 2001
O objetivo deste estudo foi investigar a eficiência da conservação ex situ da variabilidade genética de três espécies arbóreas tropicais brasileiras, Esenbeckia leiocarpa, Myracrodruon urundeuva e Peltophorum dubium, em plantio misto, segundo estágios ...
Alexandre Magno Sebbenn   +1 more
doaj   +1 more source

Scrutinizing the Wallacean shortfall: global gaps in snake occurrence data across space and environment

open access: yesEcography, Volume 2026, Issue 7, July 2026.
Occurrence records are fundamental for ecological and evolutionary research, providing key information on species' geographic ranges. However, these records are often taxonomically, spatially, and temporally biased, requiring caution in their use. Here, we analysed the spatial coverage of occurrence records for over 3500 snake species worldwide to ...
Lívia Frateles   +5 more
wiley   +1 more source

Climate Predicts Tree Dispersal Strategies Across Brazil's Ecosystems

open access: yesGlobal Ecology and Biogeography, Volume 35, Issue 7, July 2026.
ABSTRACT Aim We investigate the distribution of dispersal modes—endozoochory (via animal ingestion), synzoochory (via animal seed accumulation) and anemochory (via wind)—and seed mass of woody plants across Brazilian ecosystems, testing whether their relative abundance in local plant communities could be predicted by climate, edaphic factors and ...
Fernanda C. Souza   +126 more
wiley   +1 more source

DIVERSIDADE GENÉTICA E SELEÇÃO DE INICIADORES ISSR EM UMA POPULAÇÃO NATURAL DE MANGABA (Hancornia speciosa Gomes) (APOCYNACEAE)

open access: yesRevista Brasileira de Fruticultura, 2015
RESUMO O conhecimento da diversidade genética de espécies nativas é de grande valia quando se objetiva o melhoramento e a conservação de populações naturais.
DANIEL FERREIRA DA COSTA   +3 more
doaj   +1 more source

Fine‐scale patterns of genetic structure in three species of forest birds reveal dynamic Pleistocene history within an Amazonian interfluve

open access: yesIbis, Volume 168, Issue 3, Page 972-984, July 2026.
Phylogeographical studies of Amazonian birds have revealed large intraspecific diversity, even within recognized areas of endemism. To understand the origin and organization of Amazonian diversity, including the influence of current and historical landscapes, we need to evaluate fine‐scale patterns of genetic diversity in relation to detailed ...
Affonso Henrique Nascimento de Souza   +4 more
wiley   +1 more source

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