Results 51 to 60 of about 1,121,101 (230)

Estimation of the ecological integrity of the Guadiana River using Partial Least Squares Path Modelling and simulation scenarios.

Science of the Total Environment
Ecological integrity is fundamental to human life and ecosystems, so its assessment and management are crucial. This concept assesses ecosystem health by examining physico-chemical and biological characteristics, riparian vegetation and macroinvertebrate
Sofía Villar-Rúa, Carolina Acuña-Alonso, X. Álvarez   +2 more
semanticscholar   +1 more source

The impact of water quality changes on the socio-economic system of the Guadiana Estuary: an assessment of management options

Ecology and Society, 2012
Tourism related to bathing has a growing economic importance in the Guadiana Estuary in southern Spain and Portugal. Polls of local public opinion showed an awareness of potential and current threats to the aquatic environment posed by regulation of ...
Mª Helena E. Guimarães, André Mascarenhas, Carlos Sousa, Tomasz Boski, Tomaz Ponce Dentinho   +4 more
doaj   +1 more source

Spawning and nursery habitat of the wedge sole Dicologlossa cuneata (Moreau, 1881) in the Gulf of Cádiz (SW Spain)

Scientia Marina, 2006
Ichthyoplankton samples and hydrological data were obtained in an inshore area, between the mouths of the Rivers Guadalquivir and Guadiana (Gulf of Cádiz, SW Spain) during monthly surveys carried out from March 2002 to March 2003. Horizontal and temporal
Eva García-Isarch, Ana Juárez, Javier Ruiz, Zeneida Romero, Paz Jiménez, Francisco Baldó   +5 more
doaj   +1 more source

Augustus and Hispania Ulterior

Gerión, 2017
The author expresses his opinion that the year 40 BC, the date of the treaty of Brindisi, the province of Hispania Ulterior was divided into two distinct areas: the valley of Betis, deeply romanized, and Guadiana North, which remained a land of conquest.
Julián González Fernández
doaj   +1 more source

Flora algal de la cuenca del río Guadalquivir: Su valor en la determinación de la ecorregionalización de la cuenca [PDF]

, 2018
In compliance with the Water Framework Directive of the European Union, we needed to diagnose the ecologic quality of the different sections of the rivers of the Guadalquivir basin. In order to establish a regional classification of the water bodies by a
Casco, Maria Adela, Fernández, María R., Martín, Gonzalo, Reyes, Isabel, Sala, Silvia Estela, Toja, Julia   +5 more
core   +2 more sources

Fossils from the Azorejo Formation (Lower Cambrian, Central Iberian Zone) in the Guadiana river section at Picón, Ciudad Real

Boletín de la Real Sociedad Española de Historia Natural, 2019
During the Stage 3 of the Cambrian, several siliciclastic formations were deposited in a shallow platform that would become part of the Iberian Massif, containing abundant trace fossils and the conspicuous ichnospecies Astropolichnus hispanicus, endemic ...
J. S. López-Villalta
semanticscholar   +1 more source

Physical characterization of the Guadiana Estuary using a 3D model [PDF]

, 2016
Guadiana estuary is an intertidal estuary situated in SW of Iberian Península, the latest 50 Km of which constitutes the natural border between Spain and Portugal. Tidal influence extends to about 80 Km upstream.
Calero Quesada, Maria Concepción, Delgado, Javier, García-Lafuente, Jesús, Garel, Erwan, Martins, Flavio, Moreno-Navas, Juan   +5 more
core  

The influence of rivers on seabird foraging ecology

Biological Reviews, EarlyView.
ABSTRACT Rivers act as vital arteries to the world's oceans, delivering fresh water and nutrients that sustain marine ecosystems. Globally, river flow increasingly is being altered by climate change and anthropogenic pressures; yet the significance of rivers to predatory marine species, such as seabirds, and the extent to which river‐related changes ...
Julia B. Morais, Andre Chiaradia, Richard D. Reina   +2 more
wiley   +1 more source

Spatial and temporal heterogeneity in the Alqueva reservoir, Guadiana river, Portugal

Limnetica, 2006
Este estudio apunta a determinar la variabilidad fisco-química del embalse de Alqueva en su período de llenado inicial. El conjunto de datos consiste en resultados analíticos a partir de los primeros once meses de muestreo (marzo de 2003-enero de 2004) conducida en el cuerpo del agua, en tres niveles de profundidad; en los varios tributarios y en la ...
Serafim, António, Morais, Manuela, Guilherme, Pedro, Sarmento, Paula, Ruivo, Manuela, Magriço, Ana   +5 more
openaire   +2 more sources

Basketry as an ecosystem service of wetlands: traditional crafts in central Spain

Anales del Jardín Botánico de Madrid, 2021
Ecosystem services from wetlands include products such as food, water, fibers, timber, medicinal plants, and genetic resources for agriculture. One of the most abundant supplies is the raw material for basketry.
José Fajardo, Alonso Verde, Diego Rivera, Alejandro del Moral, Emilio Laguna, Segundo Ríos, Concepción Obón, Vicente Consuegra, José García, Francisco Alcaraz, Arturo Valdés   +10 more
doaj   +1 more source