Results 51 to 60 of about 2,590 (180)

Inner shelf paleoenvironmental evolution as a function of land-ocean interactions in the vicinity of the Guadiana River, SW Iberia [PDF]

open access: yes, 2010
This study investigates the land–ocean interactions along the northern margin of the Gulf of Cadiz in the vicinity of the Guadiana River. Benthic foraminifera and sedimentological characteristics were analysed in a sedimentary sequence spanning ca.
Dias, J. A.   +5 more
core   +1 more source

Remote sensing and GPS tracking reveal temporal shifts in habitat use in nonbreeding Black‐tailed Godwits

open access: yesJournal of Applied Ecology, Volume 62, Issue 1, Page 119-131, January 2025.
Our findings illustrate the shifting importance of natural and agricultural wetlands for godwits at different stages of the nonbreeding season. Protected areas in the Senegal Delta, particularly the Djoudj National Bird Sanctuary (Senegal) and Diawling National Park (Mauritania), are crucial habitats during the dry season as godwits prepare for their ...
Taylor B. Craft   +18 more
wiley   +1 more source

Far‐reaching blues: Long‐distance migration of the invasive Atlantic blue crab

open access: yesAquatic Conservation: Marine and Freshwater Ecosystems, Volume 34, Issue 4, April 2024.
Abstract Upstream migration of the Atlantic blue crab Callinectes sapidus is well described in its native range, but it is little known in invaded areas. Here, we report several long‐distance migration events of the blue crab in the Iberian Peninsula and use a global database to calculate the probability of occurrence of the species in relation to ...
Sergio Bedmar   +2 more
wiley   +1 more source

MASSIVE PREHISTORIC PIT SITES IN SOUTHERN IBERIA: CHALLENGES, OPPORTUNITIES AND LESSONS LEARNED

open access: yesOxford Journal of Archaeology, Volume 43, Issue 1, Page 2-22, February 2024.
Summary Archaeological sites characterized by significant concentrations of pits (‘pit sites’) were widespread in prehistoric Europe. In southern Iberia, many pit sites date back to the Late Neolithic and Chalcolithic periods (fourth‐third millennia BCE), and often display massive numbers of pits.
María José Armenteros‐Lojo   +1 more
wiley   +1 more source

Contamination Assessment of Sediments and Bivalves in Estuaries of the Southern Iberian Peninsula

open access: yesJournal of Marine Science and Engineering
Human activities directly impact estuaries, where the biota is exposed to sediment contamination. A contamination assessment was carried out in several estuaries in the Southern Iberian Peninsula. Sediment samples were analyzed for the presence of metals/
Estefanía Bonnail   +4 more
doaj   +1 more source

Alien species in the Guadiana Estuary (SE-Portugal/SW-Spain): Blackfordia virginica (Cnidaria, Hydrozoa) and Palaemon macrodactylus (Crustacea, Decapoda): potential impacts and mitigation measures [PDF]

open access: yes, 2014
The cnidarian Blackfordia virginica and the adult of the caridean prawn, Palaemon macrodactylus are first recorded from the Guadiana Estuary. The habitats and environmental conditions under which these species were found are described and the ...
Chícharo, Luís   +6 more
core  

The influence of coastal processes on inner shelf sediment distribution : the Eastern Algarve Shelf (Southern Portugal) [PDF]

open access: yes, 2013
This study examines sediment distribution patterns in the Southeastern Algarve inner shelf (southern Portugal), an area characterized by marked variations in its coastal environment and low continental supply of sediments.
Brito, A. C.   +5 more
core   +5 more sources

Incidence of intersex in male clams Scrobicularia plana in the Guadiana Estuary (Portugal)

open access: yesEcotoxicology, 2009
Endocrine disrupting chemicals (EDCs) known to be present in the marine environment, have great potential to influence reproductive status in aquatic organisms. A widespread incidence of intersex linked with EDCs exposure has been reported in molluscs and fish species.
Gomes, Tânia   +2 more
openaire   +3 more sources

Collection and dissemination of data from environmental monitoring systems in estuaries [PDF]

open access: yes, 2017
Environmental monitoring stations providing high frequency data over a multiyear time frame are not common in estuaries. These systems are designed to record extended timeseries at high frequency that are of great value for decision makers and the ...
Garel, Erwan
core   +1 more source

Effects of a large irrigation reservoir on aquatic and riparian plants: a history of survival and loss [PDF]

open access: yes, 2019
Dammed rivers have unnatural stream flows, disrupted sediment dynamics, and rearranged geomorphologic settings. Consequently, fluvial biota experiences disturbed functioning in the novel ecosystems.
Aguiar, Francisca C.   +3 more
core   +1 more source

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