Navigation Links
Huelva is swallowing up coastal lagoons in Doñana
Date:10/9/2009

A team of Spanish scientists from a variety of fields has analysed the effects of human activity on the peridunal lagoons in the Doana National Park. Results show that the lagoons are in the process of regressing, largely due to the extraction of underground water for the Matalascaas tourist resort (Huelva). Moreover, the natural effects of the ecosystem itself are further aggravating the situation.

Botanists, limnologists and climatologists from the University of Seville (US) have developed a botanical monitoring methodology which combines botanical studies with documents from past centuries, historical maps, data on the use of the land, microrelief and recent climate trends. The aim of the study, which was published in the ICES Journal of Marine Science, was to investigate the changes in the perilagoonal vegetation in Doana and ascertain their impact.

Arturo Sousa, the main author of the study and a researcher from the Department of Plant Biology and Ecology at the US explained the main conclusion of the study to SINC: "The lagoons are in the process of regressing, particularly due to the extraction of underground water for the Matalascaas tourist resort, a coastal development complex that is right on the edge of the Doana National Park, a short distance from the lagoons".

The surface and morphology of the lagoons in Doana has changed over the last two centuries, according to the analyses of perilagoonal vegetation. The research confirms that the lagoons were reduced by 70.7% between 1920 and 1987.

The new methodology is based on the changes in perilagoonal vegetation and allows researchers to study the anthropological impact on the lagoons practically in real time, "and the possible negative effect that Global Warming may have on them in the future," the botanist adds.

Natural Effects also Negative

In the past, climate trends also had a negative impact on the lagoons in Doana. "Before human activity in the area escalated, the lagoons had already begun a slow process of regression and desiccation linked to the advance of dunes, coinciding with the driest phases of the climate period known as the "Little Ice Age" (from the beginning of the 14th century to halfway through the 19th century), and probably also due to the start of the current process of global warming", Sousa says.

The coastal lagoons in Doana have always been at the centre of public opinion and their conservation is of great interest. After reconstructing their evolution, the researchers confirm that the reactivation of mobile dune fronts is responsible for blocking and filling the original lagoons with sea sand. According to the experts, this could have occurred during the driest periods of the Little Ice Age in Andalusia. "If the frequency and duration of dry periods increases, together with droughts in general, the desiccation and disappearance of lagoons could become more widespread, not only in south western Europe, but also in other Mediterranean coastal ecosystems," Sousa warns.


'/>"/>

Contact: SINC
info@plataformasinc.es
34-914-251-820
FECYT - Spanish Foundation for Science and Technology
Source:Eurekalert  

Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Huelva is swallowing up coastal lagoons in Doñana
(Date:2/23/2017)... ... February 23, 2017 , ... ... a published evaluation of multiple immunoassay-based threat detection technologies by researchers from ... PathSensors’ CANARY® biosensor threat detection technology was found to have the best ...
(Date:2/23/2017)... , ... February 23, 2017 , ... The Greater ... a new partnership with Compass Research . GGI's mission is to advance global ... to a child in need in honor of each clinical trial volunteer. The vision ...
(Date:2/23/2017)... DIEGO and SAN FRANCISCO ... a privately-held regenerative medicine company, and Beyond Type 1, ... with type 1 diabetes, today announced a grant from ... a functional cure for type 1 and other insulin-requiring ... ViaCyte has been developing innovative stem cell-derived cell replacement ...
(Date:2/22/2017)... ... February 22, 2017 , ... Kernel , ... Research Systems, LLC (KRS) clinical development program. KRS is a neurotechnology spin-out ... research and clinical applications. The terms of the transaction were not disclosed. ...
Breaking Biology Technology:
(Date:2/10/2017)... 2017 Research and Markets has ... Medicine - Scientific and Commercial Aspects" to their offering. ... ... integrated with therapy for selection of treatment as well for ... prevention of disease in modern medicine. Biochip/microarray technologies and next ...
(Date:2/8/2017)... , Feb. 7, 2017 Report Highlights ... The global synthetic-biology ... $11.4 billion by 2021, growing at a compound annual growth ... An overview of the global markets for synthetic biology. - ... for 2016, and projections of compound annual growth rates (CAGRs) ...
(Date:2/7/2017)... 2017 Zimmer Biomet Holdings, Inc. (NYSE and ... present at the LEERINK Partners 6th Annual Global Healthcare ... Wednesday, February 15, 2017 at 10 a.m. Eastern Time. ... can be accessed at http://wsw.com/webcast/leerink28/zbh .  The webcast ... Zimmer Biomet,s Investor Relations website at http://investor.zimmerbiomet.com . ...
Breaking Biology News(10 mins):