Results 11 to 20 of about 58,983,894 (105)

Prioridades para la conservación de los peces de agua dulce en la Orinoquia andina de Colombia [PDF]

open access: yesCaldasia, 2021
La Orinoquia andina en Colombia ha sido muy afectada por la intervención antrópica. Aunque se han realizado ejercicios de priorización de áreas importantes para la conservación que han incluido a los peces de agua dulce, estos sólo han tenido en cuenta ...
Jhon Edison Zamudio
doaj   +2 more sources

Diversidad de ictiofauna y calidad del agua en ríos de la zona sur de Costa Rica donde se construyeron diques y canales para contención de inundaciones

open access: yesCuadernos de investigación UNED, 2023
Introducción: Los peces de agua dulce pueden verse afectados negativamente por perturbaciones humanas como infraestructura, diques o canales y agricultura extensiva, que afectan la cubierta forestal y promueven la sedimentación.
Juan Carlos Villegas Arguedas
doaj   +1 more source

INTENSIDAD DE LA HERBIVORÍA EN DOS TIPOS DE SUELO EN LA RESERVA FORESTAL FORTUNA

open access: yesTecnociencia, 2020
La herbivoría es una de las interacciones de mayor impacto en los trópicos debido a que la vegetación está expuesta a una mayor abundancia y riqueza de folívoros.
Yosiat A. Vega Rovira   +3 more
doaj   +1 more source

Assigning trend‐based conservation status despite high uncertainty

open access: yesConservation Biology, Volume 37, Issue 4, August 2023., 2023
Abstract Estimates of temporal trends in species’ occupancy are essential for conservation policy and planning, but limitations to the data and models often result in very high trend uncertainty. A critical source of uncertainty that degrades scientific credibility is that caused by disagreement among studies or models.
Richard S. A. White   +2 more
wiley   +1 more source

Nueva lista de peces que habitan sistemas fluviales en Holguín, Cuba

open access: yesNovitates Caribaea, 2022
Se hace una contribución al conocimiento taxonómico, composición y distribución de los peces que habitan en los sistemas de agua dulce de la provincia de Holguín. El periodo de muestreo fue del año 2019 al 2021, y se realizó en 189 sitios. Se registraron
Enrique Reynaldo de la Cruz
doaj   +1 more source

Application of a deep learning image classifier for identification of Amazonian fishes

open access: yesEcology and Evolution, Volume 13, Issue 5, May 2023., 2023
To address the growing prevalence of large ecological datasets combined with a need for rapid species identification tools, we describe a novel application of a computer vision model, which is built to rapidly identify Amazonian fishes from captured image data.
Alexander J. Robillard   +7 more
wiley   +1 more source

Does the loss of diadromy imply the loss of salinity tolerance? A gene expression study with replicate nondiadromous populations of Galaxias maculatus

open access: yesMolecular Ecology, Volume 32, Issue 9, Page 2219-2233, May 2023., 2023
Abstract The recurrent colonization of freshwater habitats and subsequent loss of diadromy is a major ecological transition that has been reported in many ancestrally diadromous fishes. Such residency is often accompanied by a loss of tolerance to seawater.
M. Lisette Delgado   +6 more
wiley   +1 more source

Ecological genetics of freshwater fish: a short review of the genotype–phenotype connection

open access: yesAnimal Biodiversity and Conservation, 2012
Genética ecológica de los peces de agua dulce: una breve revisión de la conexión genotipo–fenotipo La ecología molecular o la genética ecológica es una aplicación de la genética de poblaciones que durante las dos últimas décadas ha sufrido un proceso de
O. Vidal, J. L. García-Marín
doaj   +3 more sources

Evident but context‐dependent mortality of fish passing hydroelectric turbines

open access: yesConservation Biology, Volume 36, Issue 3, June 2022., 2022
Abstract Globally, policies aiming for conservation of species, free‐flowing rivers, and promotion of hydroelectricity as renewable energy and as a means to decarbonize energy systems generate trade‐offs between protecting freshwater fauna and development of hydropower. Hydroelectric turbines put fish at risk of severe injury during passage. Therefore,
Johannes Radinger   +2 more
wiley   +1 more source

Alarming decline of freshwater trigger species in western Mediterranean key biodiversity areas

open access: yesConservation Biology, Volume 35, Issue 5, Page 1367-1379, October 2021., 2021
Abstract Theidentification of key biodiversity areas (KBA) was initiated by the International Union for Conservation of Nature in 2004 to overcome taxonomic biases in the selection of important areas for conservation, including freshwater ecosystems.
Joana Garrido Nogueira   +17 more
wiley   +1 more source

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