Results 61 to 70 of about 27,730 (216)

Urban rendezvous: Spatiotemporal overlap is more important than abundance and trait matching for urban plant–pollinator interactions

Journal of Applied Ecology, Volume 63, Issue 1, January 2026.
Our study shows that the generalized structure of urban plant–pollinator interactions is mirrored in the mechanisms that shape them, as interactions are governed primarily by less restrictive drivers such as abundance and spatiotemporal overlap rather than by trait matching.
Victor H. D. Silva, Ingrid N. Gomes, Maximillian Hanusch, Sebastian O. Queroz, Carolina P. Procópio‐Santos, Teresa Mol Fonseca, João Carlos Pena, Rodrigo B. Gonçalves, Robert R. Junker, Pietro K. Maruyama   +9 more
wiley   +1 more source

How Management Practices Shape the “Local Habitat Signature” That Modulates Bird Communities in Urban Green Spaces

Biotropica, Volume 58, Issue 1, January 2026.
Local scale factors, not just the broad urban gradient, are the key drivers of urban bird communities. Our multi‐scale study found that specific management practices, such as managing leaf litter depth or the presence of unmanaged tall grass, explained the largest portion of variation in bird composition.
Tulaci Bhakti, Diego Pujoni, Marcos Rodrigues, João Carlos Pena   +3 more
wiley   +1 more source

CLIMATOLOGIA SINÓTICA DE EVENTOS DE ONDAS DE FRIO SOBRE A REGIÃO SUL DE MINAS GERAIS

Revista Brasileira de Climatologia, 2015
Nesse estudo foram identificados os eventos de ondas de frio na Região Sul de Minas Gerais (RSMG) entre maio a setembro do período de 1965 a 2014 e caracterizados os padrões sinóticos associados com tais eventos.
Michelle Simões Reboita, Gustavo Escobar, Vitor Lopes   +2 more
doaj   +1 more source

ANÁLISE DE COMPONENTES PRINCIPAIS PARA VERIFICAR RELAÇÃO ENTRE VARIÁVEIS METEOROLÓGICAS E A CONCENTRAÇÃO DE MP10 [PDF]

, 2020
Avaliar o comportamento das variáveis meteorológicas no contexto de poluição do ar é imprescindível, pois sabe-se que as primeiras estão diretamente relacionadas com o comportamento dos poluentes atmosféricos.
Pozza, Simone Andréa, Garcia De Lima, Marla Rubia [UNESP], de Lima, Marla Rubia Garcia, Nogarotto, Danilo Covaes [UNESP], Nogarotto, Danilo Covaes   +4 more
core   +1 more source

Extensões via splines da análise em componentes principais

, 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

Climate Change Will Resize and Reshape Plant–Hummingbird Networks in the Atlantic Forest

Diversity and Distributions, Volume 32, Issue 1, January 2026.
ABSTRACT Aim To assess how climate change could reshape plant–hummingbird interaction networks in the Atlantic Forest by predicting shifts in species co‐occurrence and evaluating changes in network structure. Location Atlantic Forest, South America.
Alejandro Restrepo‐González, Thais B. Zanata, Fernanda T. Brum, Silvana Buzato, Catherine H. Graham, Joice Iamara‐Nogueira, Isabela G. Varassin   +6 more
wiley   +1 more source

Ecological function over evolutionary legacy: The limited role of shared evolutionary history in shaping modern frugivory interactions

Functional Ecology, Volume 39, Issue 12, Page 3688-3703, December 2025.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Frugivory, encompassing interactions between vertebrates and plants that range from mutualistic to antagonistic, drives seed dispersal and underpins the structure and resilience of tropical ecosystems.
Lisieux Fuzessy, Miguel Verdú, Marco Aurelio Pizo   +2 more
wiley   +1 more source

Análise de componentes principais dos indicadores de qualidade de vida

Proceeding 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, João Vitor Teodoro, Ana Carolina Torelli Marquezini Faccin   +2 more
openaire   +2 more sources

ANÁLISE DE COMPONENTES PRINCIPAIS APLICADA À FLOTAÇÃO DE MINÉRIO DE FERRO

Tecnologia em Metalurgia Materiais e Mineração, 2018
Flotation is a process of concentration, usually, employed in iron ore processing. The present work aimed to evaluate the influence of variables in the flotation process in the bench-scale using the principal components analysis technique. For this purpose, a statistical analysis by using the software R was carried out, studying the silica and the ...
Felipe de Orquiza Milhomem, Marcus Alexandre de C. W. da Silveira, Tamiris Fonseca de Souza, Tiany Guedes Cota, Tiago Martins Pereira, Otávia Martins Rodrigues   +5 more
openaire   +1 more source

River Barriers and Spatial Constraints: Unveiling the Factors Shaping Species Distribution in the Amazonian Rainforest

Journal of Biogeography, Volume 52, Issue 12, December 2025.
ABSTRACT Aim We aimed to quantify the relative contributions of geographic distance, environmental variation, and riverine barriers to shaping species distributions across the Amazon forest. Location Amazon forest, Brazil. Time Period Present. Major Taxa Studied Class Arachnida; Order: Opiliones (harvestmen).
Cristian de Sales Dambros, Elisa Leal Abbad, Pio Antonio Colmenares Garcia, Ana Lúcia Tourinho   +3 more
wiley   +1 more source