Results 31 to 40 of about 4,489 (121)

Marcadores histopatológicos de estrés ambiental en el pez Odonthestes bonariensis (Atheriniformes, Atherinopsidae) en dos embalses de Argentina

open access: yesCuadernos de investigación UNED, 2018
El embalse Cabra Corral es el principal sitio de recreación y pesca deportiva del noroeste argentino, existe un gran interés en la preservación de sus condiciones ambientales.
Oscar Leone   +2 more
doaj   +1 more source

Optimizing Total Suspended Solids Mitigation in a Data‐Limited Watershed: A Network‐Based Advection–Reaction Model Applied to the Canal del Dique, Colombia

open access: yesWater Resources Research, Volume 62, Issue 2, February 2026.
Abstract Total Suspended Solids (TSS) significantly degrade water quality by reducing light penetration and oxygen availability, while facilitating the transport of toxic contaminants. Managing TSS in watersheds requires an understanding of both hydrological connectivity and pollutant dynamics; however, these efforts are significantly constrained by ...
Jesus Guzmán Pérez   +2 more
wiley   +1 more source

Efectos y remedio de la expansión del hormigón de la presa "Baygorria"

open access: yesMemoria Investigaciones en Ingeniería, 2008
La presa “Rincón de Baygorria”, situada sobre el río Negro (Uruguay) fue afectada a pocos años de su puesta en servicio por un fenómeno que comprometía seriamente la generación de su Central hidroeléctrica.
Julio Patrone
doaj  

Future Climate Change Threatens the Genetic Diversity and Distribution of Some South American Freshwater Crustaceans of the Genus Aegla

open access: yesAquatic Conservation: Marine and Freshwater Ecosystems, Volume 36, Issue 1, January 2026.
ABSTRACT Climate change significantly threatens biodiversity, particularly in freshwater ecosystems, which host many endemic and threatened species. Among them, aeglids stand out as strictly endemic, ecologically important and highly threatened crustaceans, making them a relevant model for investigating the impacts of climate change on aquatic ...
Gislaine Puli   +4 more
wiley   +1 more source

Microtopography and land management drive the spatial and population structures of a Mediterranean keystone species

open access: yesEcosphere, Volume 17, Issue 1, January 2026.
Abstract Environmental and human factors shape the distribution and habitat of Mediterranean woody plants, influencing their population structure and conservation. The Iberian wild pear (Pyrus bourgaeana), a keystone fleshy‐fruited species supporting wildlife during resource‐scarce periods, is one such example.
Salvador Arenas‐Castro   +1 more
wiley   +1 more source

Dinámica fluvial, propiedad de la tierra y conservación del paisaje de ribera en el entorno de Aranjuez (Madrid, Toledo)

open access: yesEstudios Geográficos, 2013
El paisaje de la vega del Tajo en Aranjuez es el resultado del efecto de la desamortización civil sobre el territorio que integraba hasta la segunda mitad del siglo XIX el Real Sitio. También es fruto de la alteración del sistema fluvial producida por la
Pedro Molina Holgado   +1 more
doaj   +1 more source

Interacciones montaña-llanura frente al cambio global: desafíos y oportunidades en la gestión del territorio y de los recursos hídricos en Riegos del Alto Aragón

open access: yesPirineos: Revista de Ecología de Montaña, 2022
La transformación del secano en regadío en el sector central de la Depresión del Ebro ha representado un cambio espectacular en las condiciones de cultivo de un territorio de características semiáridas y precipitaciones muy irregulares. Sin embargo, los
Santiago Beguería   +3 more
doaj   +1 more source

Genomic Connectivity and Adaptation Signals of the Freshwater Sponge Ephydatia muelleri Across Its Distribution

open access: yesJournal of Biogeography, Volume 53, Issue 1, January 2026.
ABSTRACT Aim Genetic connectivity and local adaptation were examined across the distribution of the freshwater sponge Ephydatia muelleri. Because it occupies an exceptional breadth of freshwater environments across a broad geographic range, this species offers key insights into biogeographic processes shaping genetic structure and adaptation in inland ...
Laura de la Cruz‐Castillejo   +18 more
wiley   +1 more source

Light attenuation in Southern Iberian Peninsula reservoirs

open access: yesIngeniería del Agua, 2019
This study evaluates the extinction coefficient of light (Kd) and the Secchi disk depth (SD) in 12 reservoirs located in the southern Iberian Peninsula. These systems show differences in landscape, physical, chemical and trophic properties.
E. León-Palmero   +2 more
doaj   +1 more source

Composición de los sedimentos acumulados en embalses españoles [PDF]

open access: yes, 1998
En este trabajo se detallan las características composicionales de los sedimentos acumulados en 51 embalses españoles pertenecientes a 8 cuencas hidrográficas.
Avendaño Salas, C.   +3 more
core   +3 more sources

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