Results 51 to 60 of about 47,702 (176)

Beyond the Local Catchment: Influence of Regional Context and Land Use Legacy on Current Stream Fish Diversity in Agricultural Systems

open access: yesAquatic Conservation: Marine and Freshwater Ecosystems, Volume 35, Issue 8, August 2025.
ABSTRACT Land use poses a major threat to global biodiversity, impacting ecosystems across various spatial and temporal scales. Recent studies suggest that past land use changes influence the observed contemporary diversity patterns in stream fish assemblages more strongly than current land use.
Mateus Camana   +19 more
wiley   +1 more source

Exploring the Research Evolution of Cacao Diseases Over the Past Two Decades: A Review

open access: yesPlant Pathology, Volume 74, Issue 6, Page 1470-1494, August 2025.
A scientometric analysis (1999–2025) reveals multidisciplinary research on cacao diseases, highlighting genomics and global collaboration, with gaps in field validation and knowledge integration. ABSTRACT Cacao (Theobroma cacao) is an economically vital world crop facing threats from various diseases, causing substantial yield losses.
Taís Letícia de Oliveira Santos   +3 more
wiley   +1 more source

Eugenia e engenharia genética: a proposta de um módulo didático na abordagem Ciência, Tecnologia E Sociedade – CTS [PDF]

open access: yes, 2014
Anais do II Seminário Seminário Estadual PIBID do Paraná: tecendo saberes / organizado por Dulcyene Maria Ribeiro e Catarina Costa Fernandes — Foz do Iguaçu: Unioeste; Unila, 2014Este trabalho apresenta a proposta de um módulo didático, vinculado ao ...
Cavalli, Mariana Bolake   +3 more
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Differential gene expression toward species of Aristolochia impairing the performance of the Troidini butterfly Battus polydamas

open access: yesEntomologia Experimentalis et Applicata, Volume 173, Issue 7, Page 696-707, July 2025.
We studied the response of Battus polydamas (Papilionidae) larvae fed on Aristolochia ringens (containing several diterpenes) and Aristolochia gigantea (containing sesquiterpenes and acyclic monoterpenoids but no diterpenoids or aristolochic acids). We assessed larval performance on fitness components such as survival and differential gene expression ...
Karina L. Silva‐Brandão   +3 more
wiley   +1 more source

Legislação sobre os organismos geneticamente modificados : segurança alimentar ou proteccionismo? [PDF]

open access: yes, 2010
Os grandes produtores e exportadores mundiais de produtos agrícolas têm vindo a adoptar a engenharia genética nesta actividade com o intuito de melhorar a produtividade dos factores e aumentar a rentabilidade das empresas.
Caetano, José Manuel   +1 more
core  

Caracterização molecular de acessos de jenipapeiro. [PDF]

open access: yes, 2014
O Banco Ativo de Germoplasma de Jenipapo pertencente a Embrapa Tabuleiros Costeiros foi implantado em 2009, no Campo Experimento Jorge Sobral em Nossa Senhora das Dores, visando a conservação do material genético. O objetivo desse trabalho foi realizar a
FREIRE, K. C. S.   +6 more
core  

Unveiling the Evolutionary History of cis‐Andean Alouatta (Atelidae, Alouattinae) Through Mitochondrial Genomes

open access: yesAmerican Journal of Primatology, Volume 87, Issue 5, May 2025.
Mitochondrial DNA analysis suggests that founder‐event speciation played a key role in the divergence between cis‐Andean and trans‐Andean clades, as well as in the diversification of cis‐Andean lineages. Ancestral range reconstruction using mitochondrial genomes indicates that the most recent common ancestor of Alouatta had a widespread distribution ...
Cíntia Povill   +11 more
wiley   +1 more source

Genetic diversity, inbreeding and gene flow in a small fragmented population of Copaifera langsdorffii [PDF]

open access: yes, 2010
O objetivo deste trabalho foi investigar a taxa de imigração e a distância de dispersão de pólen e sementes em uma pequena população fragmentada de Copaifera langsdorffii Desf., com base no polimorfismo de oito locos microssatélites.
ALZATE-MARIN, Ana Lilia   +6 more
core   +2 more sources

Sugar‐Rich Resources Mediate Geographic Morphological Variation in a Dominant, Neotropical Savanna Ant

open access: yesJournal of Biogeography, Volume 52, Issue 5, May 2025.
ABSTRACT Aim Trait variation across geographic gradients can reveal how species respond to different environmental settings, which is crucial under the growing threat of climate change. Although on the basis of evolutionary theory, the patterns and drivers of intraspecific functional variation remain largely underexplored.
Marianne Azevedo‐Silva   +9 more
wiley   +1 more source

Utilização de Wikis como recurso pedagógico [PDF]

open access: yes, 2012
A sociedade do séc. XXI caracteriza-se, entre outros aspetos, pelas transformações rápidas, pelo grande fluxo de informações e pela complexidade das relações entre as pessoas.
Meirinhos, Manuel, Minhoto, Paula
core  

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