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Cortina J.,University of Alicante | Amat B.,University of Alicante | Castillo V.,CSIC - Center of Edafology and Applied Biology of the Segura | Maestre F.T.,Rey Juan Carlos University | And 2 more authors.
Journal of Arid Environments | Year: 2011

Semi-arid landscapes in the western Mediterranean have been used for millennia, resulting in large-scale transformations and widespread degradation. In some instances, these degraded environments have been unable to recover spontaneously, and ambitious restoration programs have been launched over the last decades to improve landscape conditions. Ecological restoration may speed up succession, promote more complex communities and increase their functionality. But uncertainty in the definition of restoration objectives, failure to identify most efficient practices and, particularly, socio-economic and cultural constrains may compromise future actions. Here, we review recent advances in the restoration of semi-arid vegetation cover in the Iberian southeast, discuss future challenges and suggest two key steps towards increasing the consistency and efficiency of restoration programs: emphasis on ecosystem services, and implementation of participative and adaptive management practices. © 2011 Elsevier Ltd.


Bezos J.,Complutense University of Madrid | Alvarez J.,Complutense University of Madrid | Alvarez J.,Institute Investigacion en Recursos Cinegeticos IREC | Juan L.D.,Complutense University of Madrid | And 7 more authors.
Veterinary Journal | Year: 2011

The interferon-gamma (IFN-γ) assay is an effective tool for the diagnosis of tuberculosis (Tb) in goats. The objectives of this study were to evaluate factors that might affect assay performance: (1) the phenol concentration of the purified protein derivative (PPD, tuberculin) used; (2) dialysis of PPD; and (3) delaying antigenic stimulation of blood samples for 8, 16 and 24. h after collection. The assay was performed in duplicate with two cut-off points. Dialysis of PPD reduced test sensitivity, whereas the concentration of phenol did not significantly affect test outcome. Delaying antigenic stimulation of samples >8. h resulted in a reduction in test sensitivity, compromising the capacity of the assay to detect infected animals. Performing the assay in duplicate was unnecessary, which has implications for reducing assay costs. These findings will facilitate the effective application of the IFN-γ assay as an ancillary test in Tb eradication programmes in goats. © 2010 Elsevier Ltd.


Albert Rodriguez A.,Hidroguadiana | Garcia Cerezo P.,Ministerio de Medio Ambiente
Dam Maintenance and Rehabilitation II - Proceedings of the 2nd International Congress on Dam Maintenance and Rehabilitation | Year: 2011

La Colada dam is situated in Spain, on Guadamatilla River, at the north of Cordoba. The reservoir with an area of 530 hectare for the highest normal level, hold the lands of Belalcazar, El Viso and Hinojosa del Duque. On 2006 finished the construction of the dam by the joint inyection. On may 2007 we proceed to close the bottom gates, beginning at this time the origin of beginning the putting in load of reservoir. The beginning of the exploitation is foreseen in an immediate future, when the works of connection are finished to the supplies of Zona Norte de Córdoba and Almadén y Comarca. During the filling, the behavior of the dam in the different steps of load it has been analyzed using the information facilitated by the monitoring elements. It have been observed the direct and inverse pendulums, the flows of filtration, the temperatures of the air maximum and minimal, the total daily rainfall and the level of reservoir. © 2011 Taylor & Francis Group, London.


Rodriguez S.,Complutense University of Madrid | Bezos J.,Complutense University of Madrid | Romero B.,Complutense University of Madrid | de Juan L.,Complutense University of Madrid | And 10 more authors.
Emerging Infectious Diseases | Year: 2011

Mycobacterium caprae is a pathogen that can infect animals and humans. To better understand the epidemiology of M. caprae, we spoligotyped 791 animal isolates. Results suggest infection is widespread in Spain, affecting 6 domestic and wild animal species. The epidemiology is driven by infections in caprids, although the organism has emerged in cattle.


Patricia Matus C.,Ministerio de Medio Ambiente | Patricia Matus C.,University of Chile
Revista Medica de Chile | Year: 2011

One of the main challenges in environmental management is to prevent the public health impact of projects that can cause pollution. To tackle this problem, the new Chilean bill on environmental management has defi ned the need to determine the potential health risks of a given Project. This paper gives a summary of the method used for risk evaluation and its evolution. Its incorporation in the Environmental Impact Evaluation System is proposed, to guarantee an effective prevention of the potential risks on health of new projects.


Escalona A.,University Centro Occidental Lisandro Alvarado | Salas-Sanjuan M.C.,University of Almeria | Dos Santos C.,Ministerio de Medio Ambiente | Guzman M.,University of Almeria
ITEA Informacion Tecnica Economica Agraria | Year: 2014

Zinnia and tagete flowers present vivid and uniform colors, ideal characteristics for its use in urban landscapes, including applications in vertical gardens coverage and green roofs. In these systems, it is necessary to optimize the use of water and irrigation management in order to ensure the survival of vegetation cover. With the aim of selecting plants suitable for use in vertical gardens and green roofs, we evaluated the effects of irrigation water salinity using a recirculating hydroponic nutrient solution. The ion content in the tissues of plants and their effects on the ornamental characteristics were characterized. 6, 30 and 50 mM NaCl was added to nutrient solutions to obtain final electrical conductivities of 2.0, 4.5 and 6.5 dS m−1, respectively. The increases in salinity affected plant growth, causing a decrease in biomass, height and major and minor diameters. However, salinity did not affect zinnia flower production and did not produce toxicity symptoms in tagete leaves despite the significant accumulation of Na+ and Cl− in these tissues. These results highlight the salinity tolerance of tagete and zinnia, and their possible use in urban landscape irrigated with poor quality water. © 2014 Asociacion Interprofesional para el Desarrollo Agrario. All rights reserved.


Garcia-Wolfrum S.,Ministerio de Medio Ambiente | Gutierrez J.,Iberhidra
Proceedings of the 3rd International Forum on Risk Analysis, Dam Safety Dam Security and Critical Infrastructure Management, 3IWRDD-FORUM | Year: 2012

The General Directorate for Water of the Ministry for Environment and Rural and Marine Affairs has under its assigned tasks the duty of analysing all Safety Inspection on dams. This has been done, in the case of the basin of the Guadalquivir river, by means of a collaboration with the engineering consultant IBERHIDRA. Once the documents of the Safety Inspections have been analysed and a technical visit of each dam has been undertaken, the tools of risk analysis have been applied. The profound knowledge on the dam gained in the process of analysing its Safety Inspection has helped to be able to be able to apply risk analysis tools without too great an effort. Also, as the same group of professionals has checked through all the dams of the basin, a certain homogeneity in the criteria has been achieved, this way making it possible to use the results to compare the dams in between them. © 2012 Taylor & Francis Group.


Munoz Lopez J.G.,Ministerio de Medio Ambiente | Ruiz Sanchez J.M.,Ministerio de Medio Ambiente | Granell Vicent J.,JESUS GRANELL | Granell Ninot C.,JESUS GRANELL
Dam Maintenance and Rehabilitation II - Proceedings of the 2nd International Congress on Dam Maintenance and Rehabilitation | Year: 2011

The Camarillas dam is located in the Mundo river, which is tributary of the Segura river by the left bank. It is downstream Talave dam, which receives the Tajo-Segura channel tributaries. The construction of Camarillas dam was finished in 1935, and since then has been managed with no interruption. Its facilities are degraded due to its old age and the excessively operation of the elements, demanded by its particular strategy situation. The project of modernisation and adaptation to the current Normative has been made and it includes the adaptation of the two spillways (in one of them by the project of a labyrinth weir) and also the rehabilitation of the bottom outlets with subterranean works. This project will permit to recover the reservoir capacity. © 2011 Taylor & Francis Group, London.


Lopez Garaulet J.,Ministerio de Medio Ambiente | Granell Vicent J.,Ingenieros Consultores S.A. | Baena Berrendero C.M.,Ingenieros Consultores S.A.
Dam Maintenance and Rehabilitation II - Proceedings of the 2nd International Congress on Dam Maintenance and Rehabilitation | Year: 2011

Alarcón reservoir, with a capacity exceeding one cubic kilometer, is located on the river Júcar and represents the main regulatory infrastructure resources of the river basin. In 2005, the adaptation project of the Alarcón dam spillway was made. This project includes the modernization of all hydraulic components of the dam. The planned measures in the Project must be implemented under the premise of a minimal condition for normal operation thereof and without prejudice to the highest standards of safety. Stands out the redesign of the spillway. Structurally, the contact between the existing concrete and the new has been analyzed, so it has been necessary to design a drainage system that limits the generation of uplift on the surface of contact and the bolting of union in-between both. The works are currently underway. © 2011 Taylor & Francis Group, London.


Narvaez S.,Institute Investigaciones Marinas y Costeras INVEMAR | Gomez M.,Ministerio de Medio Ambiente | Acosta J.,Ministerio de Medio Ambiente
Acta Biologica Colombiana | Year: 2010

The coastal lagoon system most important and biggest of Colombia and the largest in the Caribbean is the Cienaga Grande of Santa Marta. In their territory, seven populations lacking of an appropriate sanitation system, that pour their waste directly without any treatment to the cienaga. Keeping in mind the importance of this body of water and in order to know their sanitary quality the concentrations of thermotolerant coliforms were determined in two coastal (Tasajera and Isla del Rosario) and three palafitics populations (Buenavista, Nueva Venecia and Trojas de Cataca) during the period 2004-2007. Additionally, pH, temperature, salinity and oxygen measurements were carried out in each station. The highest coliforms concentrations were found in Trojas de Cataca, in the dry season more each year (7,800-9,000 MPN/100ml) and the lowest level in Buenavista station (2-1,100 MPN/100mL). The behavior pattern of Coliform densities in coastal populations was similar in the time and there was no direct relationship between physicochemical variables and Coliform group. It is important take care and watch over the estuary quality, taking into account that constitutes a potential risk source for economic activities development of the area and for the residents health.

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