Results 51 to 60 of about 598,288 (203)

On the role of onshore geostrophic flow on larval retention in a permanent upwelling zone along north-central Chile

open access: yesFrontiers in Marine Science
The Humboldt Archipelago (HAp), located off north-central Chile (~28° - 33° S) is one of the most productive marine zones of the Humboldt Current System (HCS).
Eduardo A. Flores   +9 more
doaj   +1 more source

Systematic review of the impact of restrictive wildlife trade measures on conservation of iconic species in southern Africa

open access: yesConservation Biology, Volume 39, Issue 1, February 2025.
Abstract Trade restrictions are often advocated and implemented as measures to protect wild species threatened by overexploitation. However, in some instances, their efficacy has been questioned, notably by governments in the southern African (SADC) region, which tend to favor a sustainable use approach to wildlife management. We conducted a systematic
Christina Hiller   +1 more
wiley   +1 more source

Ecological significance of a new record of Vallisneria americana Michx. in the conservation and sustainability of the Usumacinta Fluvial System

open access: yesDiscover Sustainability
The American eelgrass Vallisneria americana is a submersed rooted macrophyte that is widely distributed throughout North America. As a structured habitat, it shelters a high biodiversity of aquatic fauna and acts like a carbon sink.
Alberto J. Sánchez   +5 more
doaj   +1 more source

LOS ESPACIOS DE PRODUCCIÓN DE CAFÉ SUSTENTABLE EN MÉXICO EN LOS INICIOS DEL SIGLO XXI

open access: yesRevista Pueblos y Fronteras Digital, 2009
Este documento analiza los diferentes sistemas de producción cafetaleros que han cobrado importancia en el ámbito internacional a los que usualmente se les llama alternativos y sustentables, sin cuestionarse suficiente sobre el concepto mismo de ...
Pablo Pérez Akaki
doaj   +1 more source

Feeding behavior and trophic interaction of three shark species in the Galapagos Marine Reserve [PDF]

open access: yesPeerJ, 2018
There is great concern about the future of sharks in Ecuador because of the lack of biological knowledge of most species that inhabit the region. This paper analyzes the feeding behavior of the pelagic thresher shark (Alopias pelagicus), the blue shark ...
Diego Páez-Rosas   +3 more
doaj   +2 more sources

Practicas de manejo sustentable del olivar

open access: yes, 2020
Fil: Brizuela, Maria Magdalena. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Regional de Investigaciones Científicas y Transferencia Tecnológica de La Rioja. - Universidad Nacional de La Rioja. Centro Regional de Investigaciones Científicas y Transferencia Tecnológica de La Rioja. - Universidad Nacional de Catamarca.
Rousseaux, Maria Cecilia   +2 more
openaire   +1 more source

Diseño sustentable de materiales de construcción; caso del concreto de matriz de cemento Pórtland

open access: yesCiencia Ergo Sum, 2008
El presente documento contiene una revisión sobre diseño sustentable aplicado a materiales de construcción, particularmente del concreto de cemento Pórtland; en donde se establecen los principales criterios y métodos para el manejo sustentable de ...
Silverio Hernández Moreno
doaj  

Agricultura y manejo sustentable del acuífero de la Costa de Hermosillo

open access: yesregión y sociedad, 2012
The Costa de Hermosillo aquifer is one of the most overexploited in Mexico. In spite of this, it is still used for the production of low value crops with high water consumption. In this article, the optimum crop pattern was estimated by means of four linear programming models, based on the restriction imposed by aquifer recharge.
Alejandro Salazar Adams   +2 more
openaire   +2 more sources

Modelling alternative management strategies of invasive tree species at the expansion front: Ligustrum lucidum as a case study

open access: yesEcological Solutions and Evidence, Volume 6, Issue 1, January–March 2025.
The management of invasive non‐native species is a global challenge, particularly for long‐lived trees. Individual‐based models (IBMs) and expert knowledge are valuable tools for evaluating different strategies to control the population dynamics and range expansion of invasive species.
Lia Montti   +5 more
wiley   +1 more source

La ley de bosques venezolana en el marco del desarrollo sustentable

open access: yesÁgora de Heterodoxias, 2017
La Ley de Bosques de Venezuela constituye un marco regulatorio para la gestión sustentable de bosques, el país y su gente, formando parte de la instrumentalización jurídica venezolana en correspondencia con las exigencias del contexto político, social y ...
María Gabriela Velázquez-Mirabal, Msc.   +1 more
doaj  

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