Results 61 to 70 of about 3,285 (176)

Little devils of Neotropical forests: A first molecular phylogeny of stygnid harvestmen with UCE‐museomics and a gigamatrix approach (Arachnida, Opiliones, Stygnidae)

open access: yesSystematic Entomology, Volume 51, Issue 3, July‐September 2026.
First family‐wide phylogenomic framework of Stygnidae using UCE‐museomics and a gigamatrix approach establishes a novel three‐subfamily classification, erecting the new subfamily Auraninae subfam. nov. Signatures of severe incomplete lineage sorting and short deep internodes suggest a rapid early‐burst Neotropical radiation, driving phylogenetic ...
Dongyoung Kim   +2 more
wiley   +1 more source

Comportamento vegetativo de seis cultivares de coqueiro-anão (Cocos nucifera L.), em Santo Antônio de Leverger - MT

open access: yesRevista Brasileira de Fruticultura, 2002
A utilização de variedades ou genótipos de coqueiro adaptados às condições edafoclimáticas de uma região é de fundamental importância para a obtenção de altas produtividades.
JUCÁ MARCOS PÓVOAS   +3 more
doaj  

PREFERÊNCIAS TÉRMICAS DE VACAS LEITEIRAS EM SISTEMA DE CONFINAMENTO FREESTALL

open access: yesRevista Brasileira de Engenharia de Biossistemas, 2007
As mudanças do microclima de alojamento podem promover alterações no comportamento animal, onde fica priorizada sua preferência térmica. As medidas convencionais são pouco precisas, podendo levar a eventual erro na interpretação dos resultados.
Silvia R. L. Souza   +2 more
doaj   +1 more source

Análise de componentes principais dos indicadores de qualidade de vida

open access: yesProceeding Series of the Brazilian Society of Computational and Applied Mathematics, 2015
Esse trabalho teve por objetivo propor um modelo para representar os indicadores sociais: Esperanca de vida ao nascer em 2011 (anos), populacao subnutrida em 2005 (%), populacao com acesso a agua potavel em 2008 (%), populacao com acesso a rede sanitaria em 2008 (%) e calorias consumidas em 2005 (Kcal/dia/habitante); os dados populacionais: densidade ...
Bruno Rogério Locatelli dos Santos   +2 more
openaire   +2 more sources

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, Volume 51, Issue 3, Page 558-569, June 2026.
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

Extensões via splines da análise em componentes principais

open access: yes, 2012
A new approach to generalize Principal Components Analysis (PCA) in order to handle nonlinear structures is proposed in this thesis: quasi-linear PCA (qlPCA). It includes spline transformations of the original variables, using Alternating Least Squares fitting of a suitable objective loss function to achieve optimal transformations.
openaire   +2 more sources

Joint social‐ecological outcomes of private land conservation: An evidence synthesis with a well‐being perspective

open access: yesPeople and Nature, Volume 8, Issue 5, Page 1066-1084, May 2026.
Abstract Private land conservation (PLC) can contribute to sustainability by improving biodiversity and human well‐being but can also result in negative outcomes for people and nature if poorly designed. Informing PLC design to achieve objectives for joint biodiversity and well‐being is challenging because most evaluations assess ecological and social ...
Erica Cseko Nolasco   +6 more
wiley   +1 more source

Fish loss in tropical coastal ecosystems can jeopardise nutrient supply to traditional fishing communities: A case study from Northeast Brazil

open access: yesPeople and Nature, Volume 8, Issue 5, Page 1248-1260, May 2026.
Abstract Fisheries constitute one of the major benefits that oceans provide for people. Yet anthropogenic pressures and global changes are disrupting coastal systems, eroding marine biodiversity and threatening the food security of traditional populations.
Fabricio C. Albuquerque   +4 more
wiley   +1 more source

Social protection in fragile and conflict affected settings: The case of Sudan

open access: yesInternational Social Security Review, Volume 79, Issue 2, Page 17-42, April/June 2026.
Abstract This article examines Sudan’s state‐led social protection system by conducting a mapping of the country’s main social protection schemes, drawing on legislative documents and secondary reports as well as the 2022 Sudan Labor Market Panel Survey.
Dáire Brady, Zina Nimeh
wiley   +1 more source

Multiscale Environmental Drivers of Aquatic Insect Assemblages in Cerrado Streams

open access: yesAustral Ecology, Volume 51, Issue 3, March 2026.
Multi‐scale drivers of aquatic insect communities in Cerrado streams. The gradient (from left to right) indicates increasing spatial scale, showing that abundance is influenced by local factors (conductivity, temperature), taxonomic richness responds to agricultural land use at an intermediate scale, and community composition is structured by regional ...
Juliana Simião‐Ferreira   +9 more
wiley   +1 more source

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