Results 11 to 20 of about 1,208 (126)

Ecological relevance of non-perennial rivers for the conservation of terrestrial and aquatic communities. [PDF]

Conserv Biol, 2022
Abstract River conservation efforts traditionally focus on perennial watercourses (i.e., those that do not dry) and their associated aquatic biodiversity. However, most of the global river network is not perennial and thus supports both aquatic and terrestrial biodiversity. We assessed the conservation value of nonperennial rivers and streams (NPRS) in
Bruno D, Hermoso V, Sánchez-Montoya MM, Belmar O, Gutiérrez-Cánovas C, Cañedo-Argüelles M.   +5 more
europepmc   +2 more sources

Groundwater mapping and locally engaged water governance in a small island terrain: Case study of Karainagar island, Northern Sri Lanka

World Water Policy, Volume 9, Issue 3, Page 456-480, August 2023., 2023
Abstract Groundwater is a vital resource under threat in island communities. Karainagar, a 22 km2 island, is one of seven islands off the coast of Jaffna in Northern Sri Lanka, with its population of just about 11,000 persons, experiences seasonal water shortage, and salinity in groundwater as twin threats impacting on their lives.
Inthirakumaran Karthiga, Ponnambalam Rameshwaran, Balachandran Ketheesan, Nadarajah Sriskandarajah   +3 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

Molecular 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, Aliro Manosalva, Mauricio A. Urbina, Anne C. Dalziel, Evelyn Habit, Oscar Link, Daniel E. Ruzzante   +6 more
wiley   +1 more source

Representation of the world's biophysical conditions by the global protected area network

Conservation Biology, Volume 36, Issue 2, April 2022., 2022
Abstract Protected areas (PAs) are often implemented without consideration of already existing PAs, which is likely to cause an overrepresentation of certain biophysical conditions. We assessed the representativeness of the current PA network with regard to the world's biophysical conditions to highlight which conditions are underprotected and where ...
Matthias F. Biber, Alke Voskamp, Christian Hof   +2 more
wiley   +1 more source

Primary succession in an Atlantic salt marsh: From intertidal flats to mid‐marsh platform in 35 years

Journal of Ecology, Volume 109, Issue 8, Page 2909-2921, August 2021., 2021
Facilitation plays a central role in saltmarsh development in this study of primary succession. We chronicle changes in the sedimentary environment, geomorphology and plant colonisation over 35 years, as intertidal flats were transformed into a mid‐marsh platform.
Jesús M. Castillo, Blanca Gallego‐Tévar, Eloy M. Castellanos, Manuel Enrique Figueroa, Anthony J. Davy   +4 more
wiley   +1 more source

EFEITO DA SALINIDADE SOBRE AS PLANTAS

Oecologia Australis, 2008
PLANTS UNDER EFFECT OF SALINITY. Plants under salt stress can occasionally tolerate alterations in the environmental conditions. Salt tolerance in these organisms is determined by multiple biological traits that will determine their water retention and/or acquisition capacity in safeguarding photosynthetic functions and ionic homeostasis. Understanding
Bruno dos Santos Esteves, Marina Satika Suzuki   +1 more
openaire   +2 more sources

Salinidad del recurso hídrico subterráneo del Altiplano Central

Bulletin de l’Institut français d’études andines, 1995
El balance hidrológico actual del acuífero del Altiplano central boliviano (6000 km2) muestra una alimentación anual de 50 106 m3 por el río Desaguadero y por infiltración cerca de los montes. Las pérdidas son por evaporación y por flujo hacia los salares. Cerca de los montes, el agua subterránea es dulce (<0,5 mS cm-1) y empobrecida, como la lluvia
Coudrain-Ribstein, A., Pratx, Bruno, Quintanilla, J., Zuppi, G.M., Cahuaya, D.   +4 more
openaire   +4 more sources

Análisis multitemporal de los parámetros potencial de hidrógeno, conductividad eléctrica y cloruros del sistema hidrográfico del Río Ambi - Yachay

FIGEMPA, 2016
La subcuenca del río Ambi se encuentra ubicada en la provincia de Imbabura, por su proximidad a la ciudad de conocimiento Yachay y considerando que la misma pretende potenciar la producción agrícola y pecuaria con la destinación de 1.000 ha para el ...
David Carrera-Villacrés, Paulina Guevara, Valeria Andrade, Pablo Piedra   +3 more
doaj   +1 more source

Relación de la conductividad eléctrica de los suelos con la reflectancia de imágenes de satélite en la Región de Lambayeque – Perú

Revista de Investigación de Física, 2011
El objetivo del presente trabajo es estudiar la relación de la conductividad eléctrica del suelo in-situ (CEe) con la reflectancia obtenida de las imágenes de las bandas del sensor ETM del satélite Landsat- 7 para tener un conocimiento de la distribución
Joel Rojas Acuña, Eleazar Manuel Rufasto Campos   +1 more
doaj   +1 more source

COMPOSICIÓN QUÍMICA Y FERMENTACIÓN RUMINAL in vitro DE LOS PASTOS CAYMAN (BR/1752) Y COBRA (BR/1794) CRECIDOS EN CONDICIONES DE ESTRÉS SA

Tropical and Subtropical Agroecosystems, 2022
Antecedentes. El estrés salino de los suelos del trópico afecta el crecimiento y la composición nutritiva de los pastos, como consecuencia se afecta la disponibilidad y calidad de forraje para el ganado.
Serafín Jacobo López-Garrido, Silvia Santos-Jerónimo, Edgar Iván Sánchez-Bernal, Mónica Marcela Galicia-Jiménez, Narciso Ysac Ávila-Serrano, Marco Antonio Camacho-Escobar, Paulino Sánchez-Santillán, David Hernández-Sánchez   +7 more
doaj