Results 31 to 40 of about 1,645 (183)

Effects of selective harvest on antler size of white‐tailed deer in Texas, USA

open access: yesWildlife Monographs, Volume 222, Issue 1, June 2026.
We conducted 20 years of experiments on the selective harvest of white‐tailed deer by antler size, judged inferior, in 2 areas of South Texas, USA. Selective harvest increased the phenotypic antler size of older males in one study area but not the other. There was little evidence of evolution resulting from selective harvesting. Abstract There has been
Don A. Draeger   +8 more
wiley   +1 more source

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

Soils chemical fertility in pastures formed by native species and Brachiaria decumbens managed with annual fire
Fertilidade química de solo sob pastagens formadas com diferentes espécies nativas e com Brachiaria decumbens manejadas com queimadas anuais

open access: yesSemina: Ciências Agrárias, 2011
The aim of this paper was to study the chemical fertility of soils under pastures submitted to more than 10 years to different managements with different levels of technology. The study was conducted in four areas: 1) area with 12 years of native pasture
Vinícius Martins Ferreira   +2 more
doaj   +1 more source

How much sampling is enough? Four decades of understorey bird mist‐netting across Amazonia define the minimum effort to uncover species assemblage structure

open access: yesIbis, Volume 168, Issue 2, Page 571-587, April 2026.
Mist‐net sampling comprises a key methodological component of assemblage‐wide avifaunal studies, particularly in the understorey of closed‐canopy tropical forests. To investigate mist‐net bird captures and species assemblage structure, we compiled data from 312 sites across the Pan‐Amazon.
Pilar L. Maia‐Braga   +14 more
wiley   +1 more source

Distribuição espacial de atributos físicos do solo em área cultivada com cana-de-açúcar.

open access: yesAgro@mbiente On-line, 2013
O conhecimento da variabilidade dos atributos do solo é essencial para a tomada de decisão das práticas de manejo a serem adotadas numa determinada área de cultivo e assim, estabelecer um plano amostral adequado.
Milton César Costa Campos   +4 more
doaj   +1 more source

Avaliação dos atributos físicos do solo em propriedade rural

open access: yesCONTRIBUCIONES A LAS CIENCIAS SOCIALES
Os diferentes usos do solo afetam de maneira direta nas características dos mesmos, influenciando nos seus atributos físicos o que pode impactar significativamente a qualidade e a funcionalidade do solo nos ecossistemas. Essa pesquisa teve como objetivo, avaliar as mudanças nas características físicas do solo em diferentes usos: pastagem, pastagem ...
Jenifer Walus   +6 more
openaire   +1 more source

Virility, fascism and regeneration in post‐Civil War Spain: On interpretations of literary Romanticism under the Franco regime

open access: yesGender &History, Volume 38, Issue 1, Page 259-272, March 2026.
Abstract In the years immediately following the Spanish Civil War, the political culture of Falangism developed a deeply gendered regenerationist discourse, which proposed that regeneration would only be possible if the nation recovered its virile attributes.
Zira Box
wiley   +1 more source

Variabilidade espacial dos atributos químicos em terra preta de índio cultivada na região de Novo Aripuanã, AM

open access: yesRevista Verde de Agroecologia e Desenvolvimento Sustentável, 2016
Terras Pretas de Índio são solos de uma fertilidade notoriamente superior à grande maioria dos solos típicos da região Amazônica. Apresentam em sua composição fragmentos de cerâmica e artefatos indígenas incorporados a matriz dos horizontes superficiais,
Selma Ferreira Viana   +4 more
doaj   +1 more source

Stemflow Dynamics in the Jamari National Forest (Brazilian Amazon): II. Solute Concentrations and Flux Dynamics

open access: yesBiotropica, Volume 58, Issue 2, March 2026.
Trees can redirect large volumes of rainwater to the base of their stems. This stemflow not only redistributes water but also channels canopy‐derived solutes to the forest floor. Building on research showing canopy geometry and bark properties govern stemflow volumes, we examined how those same traits modulate the biogeochemical side of this flux. Over
Jeferson Alberto de Lima   +5 more
wiley   +1 more source

Variabilidade espacial da resistência do solo à penetração e umidade em áreas cultivadas com mandioca na região de Humaitá, AM

open access: yesAgro@mbiente On-line, 2012
A mandioca é uma cultura de grande importância regional devido à sua adaptabilidade e excelente fonte de proteína, por outro lado, o sistema de manejo é fundamental para o sucesso do cultivo.
Milton César Costa Campos   +4 more
doaj   +1 more source

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