scholarly journals Salada Farrachuela, a saline wetland in Tamarite de Litera, Spain

Author(s):  
Juan Herrero-Isern ◽  
Carmen Castañeda ◽  
Mauricio Velayos

Abstract This paper gives, for the first time, details of the vascular plants plus the soluble salts and other major components of their natural substrate in Salada Farrachuela, a hypersaline wetland located in the municipality of Tamarite, NE Spain. The wetland is situated on the outcropping evaporite-cored Barbastro Anticline, an area declared by the environmental authorities to be of community interest and part of the Natura 2000 network. This uncultivated and occasionally flooded wetland harbors plants able to withstand the conditions of their substrate whose upper layer (0–25 cm) has an average of 41% gypsum (CaSO4•2H2O), and 7.2 dS m−1 at 25 ºC electrical conductivity in 1:5 soil-to-water weight ratio (EC1:5) extracts. The EC1:5 value in the soil samples up to a depth of 2 m ranges from 6.23 to 7.95 dS m−1. At this depth, the average EC in the saturation extracts (ECe) is 37.0 dS m−1, with sulfate being the most abundant ion (503 meq L−1), followed by magnesium (492 meq L−1), sodium (113 meq L−1), and chloride (41 meq L−1). Salinity, hydric conditions, and halophilous vegetation contrast distinctly with the surrounding nonsaline gypseous land and its gypsophilous vegetation. This article provides a baseline for future investigations of the ecology of this wetland in relation to salinity, and a reference for the monitoring needed to guarantee its conservation. R esumen Este artículo da por primera vez noticia de las plantas vasculares y de las sales solubles y otros componentes mayoritarios del suelo de la Salada Farrachuela, un humedal hipersalino situado en el municipio de Tamarite de Litera, provincia de Huesca, en el NE de España. El humedal se localiza en el afloramiento del núcleo evaporítico del anticlinal de Barbastro, un área declarada de interés comunitario incluida en la Red Natura 2000. Este humedal, inculto e inundado ocasionalmente, alberga plantas adaptadas a un suelo cuya capa superior (0-25 cm) tiene por término medio un 41% de yeso (CaSO4•2H2O), 7.2 dS m−1 a 25 ºC de conductividad eléctrica en el extracto acuoso 1:5 en peso de suelo:agua (EC1:5). Para ese espesor de suelo, la conductividad eléctrica en extracto de saturación (ECe) a 25 ºC es 37.0 dS m−1, siendo el sulfato el ión más abundante (503 meq L−1) seguido del magnesio (492 meq L−1), sodio (113 meq L−1), y cloruro (41 meq L−1). La salinidad, las condiciones de humedad y la vegetación halófila contrastan fuertemente con las tierras circundantes, yesosas y no salinas. Este artículo puede ser un punto de partida para futuras investigaciones de la ecología del humedal en relación con la salinidad, y una referencia en el futuro seguimiento necesario para garantizar su conservación.

Author(s):  
Juan José PÉREZ PÉREZ

LABURPENA: Habitaten Zuzentarauaren bidez, Natura 2000 Sarea sortu zen. Europar Batasuneko kontserbazio-eremu berezien sare ekologiko koherentea da, fauna- eta flora-espezie basatien zein Europar Batasunerako garrantzitsuak diren habitat naturalen kontserbaziorako. Estatu kideek zuzentarauaren 6. artikuluan xedatutako lan batzuk egin behar dituzte. Arau hori funtsezkoa da, Natura 2000 Sareko eremuen kudeaketari dagokionez. Lan honetan, ez zaio heltzen eremu horietan eragina izan dezaketen planen eta proiektuen ebaluazioa egiteko betebeharra aztertzeari, oso espezifikoa baita. Hain zuzen ere, Batzordeko erreferentziazko dokumentazioaren eta Europar Batasuneko Justizia Auzitegiaren jurisprudentziaren azterketa oinarri hartuta, honako hauek azaltzen saiatuko da lan honetan: zer jasotzen den babestu beharreko habitaten eta espezieen eskakizun ekologikoak betetzeko neurrietan, eta zein diren hartu beharreko neurri egokiak habitat eta espezie horiek hondamendi edo aldaketa nabarmenik ez izateko, eta zuzentarauaren helburuak betetzeko. RESUMEN: La Directiva Hábitats crea la Red Natura 2000, una red ecológica europea coherente de Zonas Especiales de Conservación existente en la Unión para la conservación de especies de fauna y flora silvestres y de hábitats naturales de importancia comunitaria. Los Estados miembros tienen que acometer unas tareas contempladas en el artículo 6 de la Directiva, precepto fundamental en cuanto a la gestión de los lugares Natura 2000 concierne. En este trabajo, sin abordar, por su especifidad, la obligación de evaluar planes y proyectos que puedan afectar a estos lugares, y analizando documentación de referencia de la Comisión y la jurisprudencia del TJUE, se intenta explicar en qué consisten esas medidas de conservación necesarias que respondan a las exigencias ecológicas de los hábitats y especies a proteger, así como las medidas apropiadas para evitar, en esos hábitats y especies, deterioros y alteraciones con efectos apreciables en los objetivos de la Directiva. ABSTRACT: The Habitats Directive established the Natura 2000 network, a coherent European ecological network of special areas of conservation that exists in the European Union for the conservation of species of wild fauna and flora and natural habitats of Community interest. Member states have to undertake some tasks contemplated in article 6 of the Directive, an essential provision as far as the management of Natura 2000 sites is concerned. This work, without tackling the duty to assess plans and projects that might affect these sites because of their specifity, and analyzing the documentation of reference of Commission and the caselaw of the European Court of Justice, tries to explain those necessary measures of conservation that meet the ecological requirements of habitats and species to protect together with the appropriate measures to avoid in those habitats and species, deteriorations and alterations in so far as such disturbance could be significant in relation to the objectives of the Directive.


Author(s):  
Cristian Ioja ◽  
Laurentiu Rozylowicz ◽  
Maria Patroescu ◽  
Mihai Nita ◽  
Diana Onose

The Natura 2000 network represents a new approach in the sustainable spatial planning promoted at the European Union level. Agricultural landscapes comprise 28.6% of the surface area of the Natura 2000 sites, many of which have significant conservation values. Plant and animal species, and approximately 30% of the natural habitats of community interest are directly influenced by the presence of certain agricultural activities. This chapter presents a GIS analysis of the European Union Natura 2000 ecological network: spatial distribution of Natura 2000 sites in EU-27, dynamic agricultural surfaces in Natura 2000 sites, and GIS tools in managing process. GIS techniques must represent the tool by which the efficiency of this ecological network is monitored, as it must be permanently nourished with important financial resources.


2015 ◽  
Vol 2 (1) ◽  
pp. 39-47
Author(s):  
Dimcho Zahariev ◽  
Cvetelina Kacheva

Abstract The Frangensko Plateau is located in the northeastern part of Bulgaria and covers an area of 360 km2. On the territory of the plateau there are two protected areas, as well as two areas of the European ecological network NATURA 2000. The study of the medicinal plants on the territory of the Frangensko Plateau is made for the first time. As a result of our research we found 362 species of vascular plants from 242 genera and 80 families. The most of the families and the genera are represented by a small number of inferior taxa. The analysis of their life form indicates that the hemicryptophytes dominate with 39.50%, followed by the phanerophytes (22.10%). The biological types are represented mainly by perennial herbaceous plants (52.21%), annual herbaceous plants (14.09%) and trees (10.50%). There are 8 types of floristic elements divided in 32 groups. The largest percentage of species is of European type (51.93%). Among the medicinal plants, there are two Balkan endemic species, one Bulgarian endemic species and 30 relic species. Thirty four species with protection statute are described. The anthropophytes among the medicinal plants are 242 species (66.85%).


Hacquetia ◽  
2018 ◽  
Vol 17 (2) ◽  
pp. 189-220 ◽  
Author(s):  
Maria A. Sarika ◽  
Anastasia N. Christopoulou ◽  
Sevasti D. Zervou ◽  
Andreas C. Zikos

Abstract The vegetation of the European Natura 2000 protected area of Spercheios river and Maliakos gulf, that includes Mediterranean sclerophyllous shrublands, as well as riverine and coastal habitats, was studied during 2000 and 2014–2015. The vegetation was analysed following the Braun-Blanquet method. Twenty six plant communities were recorded, one of which (Pistacio terebinthi-Quercetum cocciferae) described for the first time. The communities belong to fifteen alliances, fourteen orders and eleven phytosociological classes. The distinguished vegetation units are described, presented in phytosociological tables and compared with similar communities from other Mediterranean countries. Eleven different habitat types were identified. Two of them (“Quercus coccifera woods” and “Reed beds”) are Greek habitat types, while the rest are included in Annex I of the Directive 92/43/EEC. Three of the latter (1420, 2110, 3170) have a scattered presence in the Natura 2000 network in Greece, while one (3170) is a priority habitat type.


2013 ◽  
pp. 1276-1296
Author(s):  
Cristian Ioja ◽  
Laurentiu Rozylowicz ◽  
Maria Patroescu ◽  
Mihai Nita ◽  
Diana Onose

The Natura 2000 network represents a new approach in the sustainable spatial planning promoted at the European Union level. Agricultural landscapes comprise 28.6% of the surface area of the Natura 2000 sites, many of which have significant conservation values. Plant and animal species, and approximately 30% of the natural habitats of community interest are directly influenced by the presence of certain agricultural activities. This chapter presents a GIS analysis of the European Union Natura 2000 ecological network: spatial distribution of Natura 2000 sites in EU-27, dynamic agricultural surfaces in Natura 2000 sites, and GIS tools in managing process. GIS techniques must represent the tool by which the efficiency of this ecological network is monitored, as it must be permanently nourished with important financial resources.


2020 ◽  
Vol 57 (2) ◽  
pp. 71-103
Author(s):  
Lorenzo Gianguzzi ◽  
Giuseppe Bazan

Knowledge of the processes by which plants colonize old structures is a key element for nature-based design both in urban and suburban contexts. This paper analyses the natural vegetation on walls and in other microhabitats of the roadway structures of Monte Pellegrino (606 m a.s.l.) near Palermo (Sicily), built in the first half of the 1900s. The historical road has particular construction and architectural features, and its characteristics have been maintained to this day. The route, approximately 16 kilometers long, is well integrated within a site of high naturalistic value which has been designated as a Special Area of Conservation (ITA020014) of the Natura 2000 network, and it is also a regional natural reserve. The survey was carried out on different homogeneous ecological contexts based on different microhabitats (masonry retaining walls, masonry guardwalls, road margins, and rock cut slopes) which are diversified according to other environmental factors (building materials, inclination, height, and exposure). The phytosociological and statistical analysis has led to the description of six new associations (Crepido bursifoliae-Parietarietum judaicae ass. nov., Athamanto siculae-Parietarietum judaicae ass. nov., Helichryso panormitani-Hypochaeridetum laevigatae ass. nov., Diantho siculi-Helichrysetum panormitani Gianguzzi ass. nov., Olopto miliacei-Pennisetetum setacei Gianguzzi ass. nov., Teucrio flavi-Rhoetum coriariae Gianguzzi ass. nov.) and one sub-association (Rhamno alaterni-Euphorbietum dendroidis Géhu & Biondi 1997 artemisietosum arborescentis subass. nov.). Other chasmophytic formations (Centranthetum rubri Oberd. 1969, Antirrhinetum siculi Bartolo & Brullo 1986) were reported for the first time in this area.


Diversity ◽  
2021 ◽  
Vol 13 (6) ◽  
pp. 240
Author(s):  
Alessandro Ferrarini ◽  
Marco Gustin ◽  
Claudio Celada

Biodiversity loss has multiple causes, but habitat degradation through land-use change is the predominant driver. We investigated the effectiveness of the Natura 2000 network in preserving the main wetlands of the two largest islands of the Mediterranean region, whose conservation is critical for many avian species at European and global level, in a 23-year period (1990–2012). In Sardinia, the surroundings of 22 wetlands were affected by an increase in artificial areas (+64 ha/year) and decrease in agricultural (−54 ha/year) and natural (−17 ha/year) ones. In Sicily, the surroundings of 16 wetlands were impacted by an increase in agricultural areas (+50 ha/year) and decrease in natural and semi-natural ones (−62 ha/year). Results show that the Natura 2000 policies were effective in preserving wetlands (no shrinkages detected in both regions), but their surroundings experienced intense processes of degradation and artificialization in all the sub-periods considered (1990–2000, 2000–2006, 2006–2012), whose effects are now threatening waterbirds and wetland integrity. The enlargement of the existing Natura 2000 sites, the creation of new ones and the speedup of the application of the rules of the Habitats and Birds Directives seem necessary to counteract the rapid land-use changes around these important stopover sites.


2015 ◽  
Vol 129 (1) ◽  
pp. 24 ◽  
Author(s):  
Paul C. Sokoloff

New collections of vascular plants, bryophytes, lichen, and algae are reported for Cunningham Inlet on the north coast of Somerset Island, Nunavut. This list of 48 species of vascular plants, 13 bryophytes, 10 lichens, and five algae includes 136 specimens collected in 2013 and 39 previously unreported specimens from the National Herbarium of Canada at the Canadian Museum of Nature (CAN), Agriculture and Agri-Food Canada’s Vascular Plant Herbarium (DAO), and University of Alberta (ALTA). Ten vascular plants from previous collecting in 1958 are re-reported here to give a comprehensive account of the vascular plant flora of the region. Two vascular plants are recorded for the first time for Somerset Island: Smooth Draba (Draba glabella Pursh) and Edlund’s Fescue (Festuca edlundiae S. G. Aiken, Consaul & Lefkovitch).


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