Results 51 to 60 of about 35,277 (159)

Microplastic pollution and associated trace metals in freshwater ecosystems within protected natural areas: the case of a biosphere reserve in Mexico

open access: yesFrontiers in Environmental Science
Microplastics (MPs) are considered pollutants of emerging concern. In rivers, MPs (≤5 mm) are transported by currents and deposited in lakes, reservoirs, estuaries, and oceans. In Mexico, MPs in freshwater ecosystems have been scarcely studied. This work
Rubén Rafael Granados-Sánchez   +2 more
doaj   +1 more source

Soberanía Alimentaria y Nueva Cultura del Agua [PDF]

open access: yes, 2013
Estudiando los conflictos en torno a la gestión del agua se puede constatar hasta qué punto la mitificación del mercado capitalista es perversa. El agua nos ofrece una de las plataformas pedagógicas más efectivas para entender las profundas vinculaciones
Arrojo Agudo, Pedro
core  

Managing invasive hybrids with pond hydroperiod manipulation in an endangered salamander system

open access: yesConservation Biology, Volume 38, Issue 2, April 2024.
Abstract When invasive and endangered native taxa hybridize, the resulting admixture introduces novel conservation challenges. Across a large region of central California, a hybrid swarm consisting of admixed endangered California tiger salamanders (CTS) (Ambystoma californiense) and introduced barred tiger salamanders (BTS) (Ambystoma mavortium) has ...
Robert D. Cooper, H. Bradley Shaffer
wiley   +1 more source

Prólogo

open access: yesBiología Acuática, 2019
El principal objetivo del IX Congreso de Ecología y Manejo de Ecosistemas Acuáticos Pampeanos fue el abordaje, desde la investigación, del estudio de los ecosistemas acuáticos de la llanura pampeana.
IX EMEAP
doaj  

Effect of ibuprofen, a nonsteroidal anti-inflamatory drug, on the freshwater microalga "Chlamydomonas reinhardtii" Dangeard [PDF]

open access: yes, 2016
[Resumen] La presencia de contaminantes emergentes en los ecosistemas acuáticos es actualmente un importante problema ambiental debido a la potencial toxicidad de estos compuestos sobre los organismos acuáticos, especialmente sobre las microalgas.
Tímermans Camba, Ana
core  

Fish diversity of Colombian Andes‐Amazon streams at the end of conflict is a reference for conservation before increased land use

open access: yesEcology and Evolution, Volume 14, Issue 3, March 2024.
Aquatic ecosystems in the Andes‐Amazon transition zone of Colombia are now at high risk due to expanded human activities after peace agreements in 2016 ended armed conflict. Fish communities exhibit altitudinal biodiversity gradients that are consistent in space and time, and that need to be accounted for conservation and management considerations. Our
Juan David Bogota‐Gregory   +3 more
wiley   +1 more source

Sección especial - Ecosistemas Acuáticos

open access: yesEcología Austral, 2010
Los ecosistemas acuáticos de nuestro país reciben la atención de una vasta cantidad de ecólogos que investigan diferentes aspectos de su estructura y funcionamiento y, en particular, buscan comprender las consecuencias de la actividad humana sobre ellos.
María Semmartin
doaj  

Registro de hifomicetos acuáticos para la región andinoamazónica colombiana

open access: yesBiota Colombiana, 2013
Studies concerning the aquatic hyphomycetes are rare in Colombia and non-existent in the Andean region Amazon, which is characterized as a transition between the Andes and the Amazon plain, with abundant river ecosystems, as in the case of the Hacha ...
Gustavo A. Ruiz-Chala   +1 more
doaj   +1 more source

Áreas prioritarias de conservación en la cuenca del río Segura utilizando los coleópteros acuáticos como indicadores [PDF]

open access: yes, 2004
Con este trabajo se pretende identificar las áreas prioritarias de conservación en la Cuenca del Río Segura, utilizando los coleópteros acuáticos como herramienta.
Abellán, Pedro   +3 more
core  

Ecology and diversity of mosquito larvae in ponds and lagoons of Northwestern Spain Ecología y diversidad de las larvas de mosquitos en charcas y lagunas del noroeste de España

open access: yesMedical and Veterinary Entomology, Volume 38, Issue 1, Page 38-47, March 2024.
Most of the lagoons and ponds in Galicia (Spain) function as mosquito breeding sites. Species of health concern are among the most commonly found in the study area. Anopheles maculipennis s.l. is widely distributed, being especially common in rural areas. Culex pipiens and Culex theileri are common in urban areas.
Yasmina Martínez‐Barciela   +2 more
wiley   +1 more source

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