Results 41 to 50 of about 556 (135)

estar: An R package to measure ecological stability

open access: yesMethods in Ecology and Evolution, Volume 17, Issue 4, Page 1090-1100, April 2026.
Abstract Assessing ecological stability is a key task in biodiversity monitoring and conservation. Quantifying stability is not trivial because its different aspects can be measured with various properties. However, to date, no software enables measuring different stability properties on ecological time‐series data.
Ludmilla Figueiredo   +6 more
wiley   +1 more source

Modelos de Índice de Difusão para prever a taxa de crescimento do PIB agrícola brasileiro

open access: yesNova Economia, 2012
Este artigo usa modelos lineares e não lineares de Índice de Difusão para prever, um período à frente, a taxa de crescimento trimestral do PIB agrícola brasileiro. Esses modelos são compostos de fatores comuns que permitem redução significativa do número
Roberto Tatiwa Ferreira   +2 more
doaj  

ANÁLISE DE REGRESSÃO EM EXPERIMENTOS EM PARCELAS SUBDIVIDIDAS COM DADOS NÃO-BALANCEADOS: UMA SOLUÇÃO NA LINGUAGEM GLIM

open access: yesScientia Agricola, 1996
São estabelecidas as matrizes necessárias para a realização da análise de variância de experimentos em parcelas subdivididas, com dados não-balanceados e balanceados, quando os tratamentos aplicados às parcelas e os tratamentos aplicados às subparcelas ...
S.Z. de PINHO, M.M MISCHAN
doaj   +1 more source

Patch and Landscape Predictors of Mammal Diversity and Their Trait‐Relationships in the Largest Atlantic Forest Island in Brazil

open access: yesBiotropica, Volume 58, Issue 2, March 2026.
Urbanization and habitat fragmentation reshape mammal communities on Santa Catarina Island, one of the largest Atlantic Forest islands in Brazil. Using camera traps across protected forest patches, we show that species richness declines with urban and unvegetated matrices, while abundance increases in smaller and more isolated fragments dominated by ...
Camila Rezende Ayroza   +6 more
wiley   +1 more source

Propagação de uma onda SV numa camada de solo com comportamento não-linear

open access: yesGeotecnia, 2010
 Neste trabalho é analisada a propagação vertical de uma onda impulsiva de corte SV num estrato de solo saturado homogéneo e horizontal em condições não drenadas. Para a caracterização do comportamento do terreno são utilizados modelos constitutivos não-
João Maranha, Ana Vieira
doaj   +1 more source

Life history induces markedly divergent insect responses to habitat loss

open access: yesJournal of Animal Ecology, Volume 95, Issue 1, Page 54-64, January 2026.
This study pioneers the use of deep learning to rapidly assess over 22,000 Amazonian insects, revealing life history‐dependent winners and losers from forest loss. It shows that terrestrial insects decline while aquatic insects thrive, with body size influencing dispersal, offering key insights for biodiversity conservation in tropical fragmented ...
Lucas F. Colares   +2 more
wiley   +1 more source

Avaliação de Três Formas de Soluções de Sistemas de Equações de Transporte Advectivo-difusivo com Decaimento

open access: yesTrends in Computational and Applied Mathematics, 2007
Este trabalho apresenta uma avaliação abrangente de três formas para resolver sistemas de equações de transporte advectivo-difusivo com decaimento em um meio fluido.
N.M.L. Romeiro, R.G.S. Castro, L. Landau
doaj   +1 more source

Local knowledge enhances the sustainability of interconnected fisheries

open access: yesJournal of Applied Ecology, Volume 63, Issue 1, January 2026.
Our modelling approach allows managers to compare alternative conservation strategies under different socio‐ecological scenarios, highlighting trade‐offs and guiding investment of effort and resources. While immediately valuable for pirarucu management in the Middle Juruá, the framework scales across tiers of applicability, each requiring progressively
Carine Emer   +4 more
wiley   +1 more source

Nonlinear models to predict nitrogen mineralization in an Oxisol Modelos não lineares para predizer a mineralização de nitogênio num latossolo

open access: yesScientia Agricola, 2005
This work was carried out to evaluate the statistical properties of eight nonlinear models used to predict nitrogen mineralization in soils of the Southern Minas Gerais State, Brazil.
Janser Moura Pereira   +2 more
doaj   +1 more source

Mammals with large home ranges, low reproductive rates and small body sizes are most vulnerable to roads: A meta‐analysis

open access: yesJournal of Applied Ecology, Volume 62, Issue 12, Page 3227-3239, December 2025.
Road mitigation for mammals should ideally be informed by site‐level knowledge and generally involve prioritizing species with the combination of larger home ranges, lower reproductive rates and smaller body sizes. To protect these vulnerable mammals from roads, we should maintain low road densities and instal small‐mesh mitigation fencing along roads.
Sean Patterson   +6 more
wiley   +1 more source

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