Bianco M.L.,University of Cagliari |
Ferrer-Gallego P.,VAERSA |
Ferrer-Gallego P.,Centro Para la Investigacion y Experimentacion Forestal CIEF |
Grillo O.,University of Cagliari |
And 3 more authors.
Systematics and Biodiversity | Year: 2015
Morpho-colorimetric quantitative variables describing seed size, shape, colour and texture were analysed using image analysis techniques, in order to evaluate the variability among Medicago taxa sect. Dendrotelis and verify the current taxonomic treatment which divides this section into three species: M. arborea L., M. citrina (Font Quer) Greuter and M. strasseri Greuter, Matthäs & H. Risse. Further comparisons were conducted to discriminate among populations and regions of provenance. Data obtained were statistically analysed applying stepwise Linear Discriminant Analysis method (LDA), recording an overall cross-validated classification performance of 100% at species level. With regard to inter-population comparisons, percentages of correct discrimination above 98% were achieved and high performance was recorded in the discrimination among M. arborea taxa distinguished by region of provenance. For each of these statistical comparisons, the best discriminant variables chosen by the stepwise LDA were related to colour and textural information. Finally, the obtained results confirmed the validity of the proposed method to be highly diagnostic in the statistical assessment of the morpho-colorimetric traits variability of Medicago taxa seeds, both for the taxonomic differentiation at species level and regional and population groups. © 2015 © The Trustees of the Natural History Museum, London 2015. All Rights Reserved.
Fos Martin S.,VAERSA |
Laguna Lumbreras E.,Generalitat Valenciana |
Jimenez Perez J.,Generalitat Valenciana
Flora Mediterranea | Year: 2014
The Valencian Plant Micro-reserves network comprises 298 protected sites, and considerable experience has been progressively accumulated during 15 years of continued management. However, an evaluation of its effectiveness as a tool to protect wild rare, endemic or endangered plants has not yet been made. As part of a larger evaluation effort, this paper assesses the effectiveness of the Valencian PMR network to incorporate the most relevant plants species targeted for conservation in the Valencian region. The results show that 77% of endemic, about 50% of rare and 57% of threatened species are represented in the PMR network. However, a comparison of these results is not possible today due to the lack of good analysis of networks of small protected sites focused on plant protection.
Trolard F.,French National Institute for Agricultural Research |
Bourrie G.,French National Institute for Agricultural Research |
Baillieux A.,SYMCRAU |
Buis S.,French National Institute for Agricultural Research |
And 21 more authors.
Journal of Environmental Management | Year: 2016
In a context of increased land and natural resources scarcity, the possibilities for local authorities and stakeholders of anticipating evolutions or testing the impact of envisaged developments through scenario simulation are new challenges. PRECOS's approach integrates data pertaining to the fields of water and soil resources, agronomy, urbanization, land use and infrastructure etc. It is complemented by a socio-economic and regulatory analysis of the territory illustrating its constraints and stakes. A modular architecture articulates modeling software and spatial and temporal representations tools. It produces indicators in three core domains: soil degradation, water and soil resources and agricultural production. As a territory representative of numerous situations of the Mediterranean Basin (urban pressures, overconsumption of spaces, degradation of the milieus), a demonstration in the Crau's area (Southeast of France) has allowed to validate a prototype of the approach and to test its feasibility in a real life situation. Results on the Crau area have shown that, since the beginning of the 16th century, irrigated grasslands are the cornerstones of the anthropic-system, illustrating how successfully men's multi-secular efforts have maintained a balance between environment and local development. But today the ecosystem services are jeopardized firstly by urban sprawl and secondly by climate change. Pre-diagnosis in regions of Emilia-Romagna (Italy) and Valencia (Spain) show that local end-users and policy-makers are interested by this approach. The modularity of indicator calculations and the availability of geo-databases indicate that PRECOS may be up scaled in other socio-economic contexts. © 2016 Elsevier Ltd
Oltra Benavent J.E.,VAERSA |
Serra Laliga L.,Generalitat Valenciana |
Conca Ferrus A.,Pl. Poeta Joan Vimbodi
Flora Montiberica | Year: 2015
New data about 10 eurosiberian species of vascular plants which are especially rare in Dianic Mountains are reported (Valencian Community).
Ferrer-Gallego1 P.P.,VAERSA |
Navarro A.,Centro Para La Investigacion Y Experimentacion Forestal Of La Generalitat Valenciana Cief Vaersa |
Perez P.,VAERSA |
Rosello R.,University of Valencia |
And 3 more authors.
Phytotaxa | Year: 2015
A new species of Plumbaginaceae, Limonium irtaensis, is described and illustrated from the Western Mediterranean basin (Iberian Peninsula). The new species is triploid (2n = 26) and shows a papillate stigma and pollen with a fine reticulate exine (B type). A detailed morphological description is given, and its main diagnostic characters are compared with the related species. Conservation status has been assessed according to the IUCN protocol. © 2015 Magnolia Press.