Results 11 to 20 of about 31,769 (182)

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

Ecological relevance of non‐perennial rivers for the conservation of terrestrial and aquatic communities

Conservation Biology, Volume 36, Issue 6, December 2022., 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
Daniel Bruno, Virgilio Hermoso, María Mar Sánchez‐Montoya, Oscar Belmar, Cayetano Gutiérrez‐Cánovas, Miguel Cañedo‐Argüelles   +5 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

Use of water from small alluvial aquifers for irrigation in semi-arid regions. [PDF]

, 2011
Water from small alluvial aquifers constitutes an attractive and low-cost option for irrigation and rural development in Northeastern Brazil. Based on piezometric measurements, geochemical analyses and electrical conductivity estimates, the present case ...
Burte, Julien Daniel Pierre, Coudrain, Anne, Marlet, Serge   +2 more
core   +4 more sources

Distribution of Oikopleura Dioica (Tunicata, Appendicularia) associated with a coastal frontal system (39°- 41°s) of the SW Atlantic ocean in the spawning area of Engraulis Anchoita anchovy [PDF]

, 2013
Among tunicates, the small planktonic appendicularians generally comprise a significant fraction of the mesozooplankton in frontal systems. The summer 2011 distribution (vertical and spatial) of Oikopleura dioica was studied in terms of abundance ...
Capitanio, Fabiana Lia, Guerrero, Raul Alfredo, Pajaro, Marcelo, Spinelli, Mariela Lorena   +3 more
core   +4 more sources

Avaliação de genótipos de caupi sob salinidade [PDF]

Revista Brasileira de Engenharia Agrícola e Ambiental, 2002
Foram conduzidos ensaios em abrigo telado de vegetação com cobertura de telha de fibra de vidro com o objetivo de se avaliar a tolerância de 50 genótipos de caupi sob salinidade. Os tratamentos de salinidade aplicados no solo, em termos de condutividade elétrica do extrato de saturação (CE), foram: CE1 - 0,3, CE2 - 3,0, CE3 - 6,0, CE4 - 9,0 e CE5 - 12 ...
Dantas, José P., Marinho, Francisco J. L., Ferreira, Magna M. M., Amorim, Maria do S. N., Andrade, Sílvia I. de O., Sales, Adriana L. de   +5 more
openaire   +3 more sources

Respostas de Genótipos de Feijoeiro à Salinidade

Revista Engenharia na Agricultura - REVENG, 2010
Com objetivo de avaliar e comparar o efeito da salinidade da solução do solo sobre a resposta de genótipos de feijoeiro foi realizado um experimento em delineamento inteiramente casualizado, com 30 genótipos, cultivados por 25 dias em substrato salino, em casa de vegetação, com cinco níveis de salinidade (2,50; 5,00; 7,50 e 10,00 dS m-1 e uma ...
Giovanni De Oliveira Garcia, Aline Azevedo Nazário, Willian Bucker Moraes, Ivo Zution Gonçalves, João Carlos Madalão   +4 more
openaire   +2 more sources

Avaliação de genótipos de algodoeiro sob níveis de salinidade da água de irrigação

Revista Brasileira de Engenharia Agrícola e Ambiental, 2021
Resumo Este trabalho foi conduzido em condições de casa de vegetação, com o objetivo de se avaliar o efeito da salinidade da água de irrigação sobre cinco genótipos de algodoeiro. Os genótipos foram classificados para tolerância à salinidade, com base na
Aleksandra G. Jácome, Pedro D. Fernandes, Hans R. Gheyi, Antônio C. A. Gonçalves, Frederico F. da Silva   +4 more
doaj   +1 more source