Results 31 to 40 of about 55,084 (186)

Calidad sanitaria del agua del Parque Natural Chicaque

open access: yesNova, 2013
La eutrofización es un proceso natural en los ecosistemas acuáticos, se produce por el enriquecimiento del cuerpo de agua con nutrientes. Durante los últimos años el ser humano ha acelerado estos procesos de eutrofización modificando tanto la calidad de las aguas como la estructura de las comunidades biológicas, debido al aumento en la carga orgánica e
Ávila de Navia, Sara Lilia   +1 more
openaire   +4 more sources

Synthesis of a National Soil Dataset Across Productive Land in Mexico: The Importance of Making Existing Data Accessible

open access: yesEuropean Journal of Soil Science, Volume 76, Issue 3, May–June 2025.
ABSTRACT The lack of soil data is a complication that most soil scientists will encounter throughout their career; this critical aspect is exacerbated due to the excessive cost of soil surveying. Consequently, it is essential to develop strategies that guarantee the permanent accessibility of past soil sampling efforts.
Carlos E. Arroyo‐Cruz   +5 more
wiley   +1 more source

Calidad del agua del río Luyanó: aplicación de un índice de calidad del agua

open access: yesIngeniería Hidráulica y Ambiental, 2019
Este trabajo describe la aplicación del Índice de Calidad del Agua del Concilio Canadiense de Ministerios del Medioambiente (CCMEWQI) para cuatro estaciones situadas en el río Luyanó, La Habana, Cuba. El río fue evaluado desde diciembre del 2010 hasta noviembre del 2017. El CCMEWQI fue aplicado a seis parámetros de calidad de agua (pH, oxígeno disuelto,
José Francisco Montalvo Estévez   +3 more
openaire   +1 more source

Quantifying regulatory limits for multiple stressors in an open and transparent way

open access: yesConservation Biology, Volume 39, Issue 2, April 2025.
Abstract Biodiversity is confronted globally by multiple stressors. Environmental policies must regulate these stressors to achieve targets, but how should that be done when the outcomes of limits on one stressor are contingent on other stressors, about which there is imperfect knowledge?
Rick J. Stoffels, Richard S. A. White
wiley   +1 more source

Threats posed by land use to water quality in South Africa's strategic water source areas

open access: yesWorld Water Policy, Volume 11, Issue 1, Page 155-164, February 2025.
Abstract Understanding the negative impacts of land use/land cover (LULC) on water quality is key to developing effective integrated catchment management strategies. However, in line with the Integrated Water Resources Management (IWRM) philosophy, this necessitates the generation and application of useful scientific knowledge, which stakeholders and ...
Kent Anson Locke, Kevin Winter
wiley   +1 more source

Effects of manakin gut passage on germination of a neotropical melastome shrub (Melastomataceae)

open access: yesBiotropica, Volume 57, Issue 1, January 2025.
In a paired germination experiment, we found that manakin gut passage accelerated germination of a common and widespread Melastome shrub, Miconia rubescens, which may function as an important pioneer in regenerating rainforest. Manakin species varied in their gut passage effects and within species, body mass correlated with greater and earlier ...
Katherine Rompf   +2 more
wiley   +1 more source

Vigilancia de la calidad del agua en el Perú

open access: yes, 2012
Revisa el panorama hidrográfico del Perú así como los retos y desafíos en materia de calidad del agua y la normativa e instrumentos en torno a la vigilancia de la calidad del agua.
Autoridad Nacional del Agua. Dirección de Gestión de Calidad de los Recursos Hídricos
core  

Recovery and Degradation Drive Changes in the Dispersal Capacity of Stream Macroinvertebrate Communities

open access: yesGlobal Change Biology, Volume 31, Issue 1, January 2025.
Freshwater ecosystems across Europe are recovering unevenly despite restoration efforts, partly due to the limited ability of many species to disperse. Using a dataset of over 1300 time series, we found that improved ecological quality often leads to gains in macroinvertebrate species with strong dispersal capacities, while degrading sites lose these ...
Carlos Cano‐Barbacil   +3 more
wiley   +1 more source

Informe del monitoreo participativo de la calidad del agua superficial en la cuenca del río Huallaga (junio - julio de 2018)

open access: yes, 2018
Evalúa el estado de la calidad del agua superficial de la cuenca del río Huallaga en base a los resultados del monitoreo de calidad de agua superficial.
Autoridad Nacional del Agua. Autoridad Administrativa del Agua Huallaga
core  

Building pondscapes for amphibian metapopulations

open access: yesConservation Biology, Volume 38, Issue 6, December 2024.
Abstract The success of ponds constructed to restore ecological infrastructure for pond‐breeding amphibians and benefit aquatic biodiversity depends on where and how they are built. We studied effects of pond and landscape characteristics, including connectivity, on metapopulation dynamics of 12 amphibian species in Switzerland.
Helen Moor   +6 more
wiley   +1 more source

Home - About - Disclaimer - Privacy