Results 31 to 40 of about 790,236 (215)

Efectos de la estimulación hidráulica (fracking) en el recurso hí- drico: Implicaciones en el contexto colombiano

open access: yesCiencia e Ingeniería Neogranadina, 2017
La contribución de la extracción de gas lutita en la sostenibilidad energética ha sido evaluada de manera independiente, sin tener en cuenta su relación con la seguridad hídrica ni sus impactos en las fuentes de agua.
Sharel Alexa Charry-Ocampo   +1 more
doaj   +2 more sources

EFECTOS DE LA CONTAMINACIÓN EN LAS MATRICES AMBIENTALES AGUA, SUELO Y ATMÓSFERA

open access: yes, 2022
EFECTOS DE LA CONTAMINACIÓN EN LAS MATRICES AMBIENTALES AGUA, SUELO Y ATMÓSFERA 58 JeanCarlo Andrade59, Cristian Lara-Basantes60, Diego Muñoz61, Cristhian Chicaiza-Ortiz62 RESUMEN En el siguiente texto, se abordan diversas problemáticas ambientales referidas a contaminación atmosférica, contaminación del suelo y aguas y la creciente inquietud sobre
Tobar, Jean Carlo Andrade   +3 more
openaire   +2 more sources

Riesgos ambientales de la nanotecnología: nanopartículas y nanoestructuras [PDF]

open access: yes, 2006
Nanotechnology, that manipulates matter to the thousand millionth of meter, is assumed as one of the technological fronts of the 21st century of greater expectations and implications.
Delgado Ramos, Gian Carlo   +1 more
core   +1 more source

Key agroecosystems for the conservation of amphibians and reptiles in Europe

open access: yesConservation Biology, EarlyView.
Abstract Agricultural expansion and intensification are driving amphibian and reptile declines worldwide. However, sustainably managed agroecosystems can support a high diversity of herpetofauna, which play a key role in pest control, reducing crop damage.
Andrea Dalpasso   +4 more
wiley   +1 more source

Medición y cartografía del impacto socialmente percibido ante industrias contaminantes con un estimador de densidad núcleo (kernel) y SIG: aplicación al caso del complejo industrial Ventanas, Chile

open access: yesEstudios Geográficos, 2017
Los efectos ambientales derivados de actividades humanas ocasionan los llamados campos de externalidades en el entorno de ellas, manifestándose bien como emisiones o impactos físicos, bien como vivencias negativas afectando a la población.
Antonio Moreno Jiménez   +1 more
doaj   +1 more source

Pest‐preservation paradox among insects

open access: yesConservation Biology, EarlyView.
The pest‐preservation paradox is a non‐binary perspective that insects range from those that are harmful and requiring management on the one side, to those requiring conservation intervention on the opposite end of the spectrum. Importantly, the vast majority of insects occur somewhere in the center of the two extremes, and their position along the ...
Michael J. Samways   +3 more
wiley   +1 more source

Hydropower Regulation of Xingu River Discharge Structures Heterogeneous, Sector‐Specific Responses in Pacu Fisheries Along the River Continuum

open access: yesFisheries Management and Ecology, EarlyView.
ABSTRACT Hydroelectric dams are common in Amazonian tributaries under federal environmental licensing that requires long‐term fisheries monitoring. This study evaluated three fishing systems targeting “pacu” species (Serrasalmidae) in the Xingu River before, during, and after construction of the Belo Monte dam (2012–2023) across four river sectors ...
João Paulo Moura de Queiroz   +5 more
wiley   +1 more source

Cambio climático: impactos y perspectivas de investigación desde una visión multidisciplinar

open access: yesTendencias, 2017
La preocupación que en los últimos años ha surgido por parte de los países desarrollados ante los crecientes impactos económicos generados por el Cambio Climático el cual se refleja en el incremento del número de investigaciones en este campo. La mayoría
Germán Augusto Forero Cantor   +2 more
doaj   +1 more source

The MexMAGIC population reveals the genetic architecture of traits exhibiting clinal variation in Mexican native maize

open access: yesNew Phytologist, Volume 252, Issue 3, Page 1296-1313, November 2026.
The MexMAGIC population mixes native maize varieties from across Mexico to study functional genetic diversity. Summary Defining the genetic basis of local adaptation is a key goal of evolutionary biology and crop improvement. Theory predicts that when selective pressures follow differences in the environment, a cline will be established.
Sergio Perez‐Limón   +18 more
wiley   +1 more source

Who Owns the Landscape? Policy Conflict Over the Proposed Designation of Křivoklátsko as a National Park

open access: yesReview of Policy Research, Volume 43, Issue 6, November 2026.
ABSTRACT Nature conservation conflicts increasingly extend beyond ecological objectives to disputes over decision‐making legitimacy, institutional authority, and competing understandings of landscape and expertise. This article examines the conflict over the proposed designation of Křivoklátsko as a national park in the Czech Republic between 2021 and ...
Filip Simon
wiley   +1 more source

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