Results 51 to 60 of about 208,052 (221)

Determinación del Turno de Corta para Pinus caribaea var. caribaea en la Empresa Forestal Integral “Macurije” [PDF]

open access: yesFloresta e Ambiente
RESUMEN El trabajo tuvo como fin determinar un turno de corta para Pinus caribaea Morelet var. caribaea Barret y Golfari para la Empresa Forestal Integral “Macurije” en la provincia de Pinar del Río, Cuba.
Héctor Barrero Medel   +3 more
doaj   +1 more source

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

Um estudo sobre o conflito : a correlação entre produtividade, coesão e conformidade as normas na Casan [PDF]

open access: yes, 1992
Dissertação (mestrado) - Universidade Federal de Santa Catarina. Centro Socio-EconomicoEsta dissertação é um estudo de caso, elaborada sob o enfoque grupal, que possue o propósito de verificar a correlação entre a produtividade, a coesão e a conformidade
Luz, Ramses Antunes da
core  

Precios de productos con destino a mercados agropecuarios en Cuba entre realidades y perspectivas

open access: yesRevista Cubana de Finanzas y Precios, 2021
Abordar el tema de los precios agropecuarios en un escenario real e inmediato requiere un enfoque sistémico, que permita identificar las conexiones que existen con el entramado de relaciones sociales del país y a la vez, los factores que afectan sus ...
Silvio David Gutiérrez Pérez
doaj  

Avaliação da reação de crescimento aos desbastes em Pinus taeda L.

open access: yesAgro@mbiente On-line, 2010
O presente estudo avalia o manejo de povoamentos de Pinus taeda L. sob quatro diferentes regimes de manejo: Tratamento 1: sem desbaste, povoamento com 32 anos; Tratamento 2: dois desbastes, povoamento com 36 anos; Tratamento 3: três desbastes ...
Vitor Cezar Miessa Coelho   +1 more
doaj   +1 more source

A link between increased temperature and avian body condition in a logged tropical forest

open access: yesConservation Biology, Volume 40, Issue 3, June 2026.
Abstract The combined effects of anthropogenic disturbances, such as logging and climate change, remain poorly understood; yet, they are the main threats to tropical biodiversity. Most tropical African countries lack long‐term climate data, so climate impacts on biodiversity cannot be assessed.
Moreen Uwimbabazi   +7 more
wiley   +1 more source

Effects of landscape context on avian specialist response to increased surface temperature in protected areas

open access: yesConservation Biology, Volume 40, Issue 3, June 2026.
Abstract Human development is a driver of global change and a major threat to biodiversity. Protected areas maintain and support biodiversity, but outside stressors, such as climate change and land use change, can negatively influence natural resources within protected areas.
Leah J. Rudge   +2 more
wiley   +1 more source

Calidad morfológica de plantas de Bursera graveolens, propagadas por estacas en condiciones de vivero

open access: yesEcosistemas y Recursos Agropecuarios
En la reproducción de plantas es importante evaluar su calidad morfológica, fisiológica, genética, biológica y sanitaria, antes de establecerlas en campo.
Juan Ángel García-Aguilar   +5 more
doaj   +1 more source

High Densities of Large Herbivores Rapidly Disrupt Ecosystem Integrity

open access: yesGlobal Change Biology, Volume 32, Issue 6, June 2026.
Human‐driven increases in large herbivore populations are emerging as a widespread global change pressure on terrestrial ecosystems. Using the largest hectare‐scale herbivore density manipulation experiment conducted to date, we show that high deer densities rapidly disrupt ecosystem integrity across multiple dimensions of biodiversity and ecosystem ...
Jorge Isla   +38 more
wiley   +1 more source

Evaluación del comportamiento de la pandemia COVID-19 y pronóstico de su evolución

open access: yesRetos de la Dirección, 2023
Objetivo: Proponer indicadores y procedimientos para evaluar y predecir el comportamiento   de   la   pandemia   COVID-19   con   el   empleo   de   conocimientos elementales de matemática. Métodos  y  técnicas:  Búsqueda  de  información  sobre  el 
Giordano Rodríguez Rodríguez   +3 more
doaj   +2 more sources

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