Results 41 to 50 of about 43,210 (185)

Sugar provisioning increases parasitoid numbers in agroecosystems but may not reduce pest densities: A meta‐analysis

open access: yesJournal of Applied Ecology, Volume 63, Issue 5, May 2026.
Our findings demonstrate that providing sugar sources reliably supports parasitoid populations and parasitism rate but does not systematically translate into improved pest suppression or yield gains. These results suggest that, for economic and practical reasons, sugar inputs at the edge of cultivated fields should be favoured.
Martin Luquet   +3 more
wiley   +1 more source

Variabilidad Climática y Ciclos Naturales

open access: yes, 2011
Academia Nacional de Agronomía y ...
openaire   +2 more sources

Stemflow Dynamics in the Jamari National Forest (Brazilian Amazon): I. The Role of Tree Structure

open access: yesBiotropica, Volume 58, Issue 3, May 2026.
A portion of rainfall that contacts tree canopies is drained down tree stems as stemflow. Stemflow is an underexamined component of rainfall partitioning in tropical forests. To investigate how tree canopy structural attributes influence stemflow in the Brazilian Amazon, we measured stemflow, rainfall, and dendrometric parameters of 56 trees in the ...
Jeferson Alberto de Lima   +5 more
wiley   +1 more source

Caracterização da variabilidade espacial dos índices de conforto animal em sistemas de confinamento Compost Barn

open access: yes, 2019
O estudo a respeito do quanto os fatores ambientais e o microclima das instalações de bovinos leiteiros influenciam no desempenho da produção do animal tem ganhado espaço no meio científico e prioridade do ponto de vista dos produtores.
Ednilton Tavares de Andrade   +2 more
core   +1 more source

Variabilidade físico-química da farinha de mandioca [PDF]

open access: yes, 2008
Este trabalho teve como objetivo avaliar a variabilidade físico-química da farinha de mandioca comercializada no município de Cruzeiro do Sul - AC por meio da análise multivariada.
Souza,Joana Maria Leite de   +6 more
core   +1 more source

The Flooding Gradient Affects Seed Dispersal by Fruit‐Eating Fishes in Amazonian Whitewater Floodplain Forests

open access: yesBiotropica, Volume 58, Issue 3, May 2026.
This research approaches the interaction between frugivorous fish and the flooded forests in the central Amazon. We evaluated the fruit consumption by fish and the seed dispersal potential along the flood gradient. We tested the hypothesis that the role of fish as seed dispersers varies between low várzea (LV) and high várzea (HV) forests.
Gilvan Costa   +6 more
wiley   +1 more source

¿Variabilidad = Variable?

open access: yes, 2012
Se usan muchas veces conceptos estadísticos sin conocer sus definiciones, sus características y/o sus limitaciones. Una indagatoria con alumnos de nuestra facultad, nos hizo conocer que el concepto de variabilidad no está bien entendido aún en los niveles superiores, donde se estudia estadística.
Suraño, Héctor Orlando   +2 more
openaire   +1 more source

Efeito da respiração controlada e da meditação mindfulness sobre a variabilidade da frequência cardíaca [PDF]

open access: yes, 2014
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro de Filosofia e Ciências Humanas, Programa de Pós-Graduação em Psicologia, Florianópolis, 2014.O descontrole do sistema nervoso autônomo está na base de um número significativo de doenças e
Sbissa, Pedro Paulo Mendes
core  

Tell Me How Much DNA You Have and I'll Tell You What Your Sex Is: Sex Determination by Flow Cytometry of Spiderlings of Allocosa marindia

open access: yesEcology and Evolution, Volume 16, Issue 4, April 2026.
The manuscript addresses the sex determination of spiderlings of the wolf spider Allocosa marindia using flow cytometry. Spiders are born with a defined sex, but it is not possible to determine their sex phenotypically until the adult or near‐adult stage. Sex identification at early stages of development is of great interest for studies in evolutionary
Leticia Bidegaray‐Batista   +4 more
wiley   +1 more source

Contingencia y variabilidad

open access: yes, 2022
Fil: Day, Magdalena . Universidad Nacional de Cuyo. Facultad de Ciencias Políticas y Sociales.
openaire   +1 more source

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