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trié(s) par (Pertinence décroissant(e), Titre croissant(e)) Affiner la recherche Générer le flux rss de la rechercheConvention of the conservation of european wildlife and natural habitats : Standing committee, 29th meeting (Bern, 23-26 november 2009). The impact of climate change on plant species in Europe : Final version / Vernon Hilton Heywood (2009)
Titre : Convention of the conservation of european wildlife and natural habitats : Standing committee, 29th meeting (Bern, 23-26 november 2009). The impact of climate change on plant species in Europe : Final version Titre original : Convention relative à la conservation de la vie sauvage et du milieu naturel de l'Europe Type de document : Livre Auteurs : Vernon Hilton Heywood (1927-….), Directeur de publication, rédacteur en chef ; Alastair Culham, Auteur Editeur : Bern : Council of Europe Année de publication : 2009 Titres uniformes : Convention relative à la conservation de la vie sauvage et du milieu naturel de l'Europe Importance : 98 p. Langues : Anglais Catégories : [ZG] Europe Mots-clés : Directive habitats changement climatique conservation Résumé : "A summary is given of the current state of conservation of plant diversity in Europe and gaps in our baseline knowlege are identified. Published data on the recent effects on climate change on European plants are reviewed, including changes in phenology and altitudinal shifts. All the available evidence points to the high probability that plant diversity, both at the landscape and ecosystem level and at the species and population level will be severely impacted by climate change over the course of this century, interacting with other forms of global change such as population growth and movement and changes in disturbance regimes. The impacts will not be uniform, with some regions such as northern Europe experiencing moderate changes and turnover of species, while others, especially in the Mediterranean region and high mountain ranges may expect serious disruption of existing ecosystems and their replacement with novel assemblages of species and the loss of considerable numbers of currently rare and endangered species in specialized habitats. Many species that are not currently threatened or on national Red Lists may be put at risk by climate change, while others will be at risk of extinction through lack of suitable niches into which to migrate. While we have developed increasingly sophisticated tools and modelling procedures, very considerable uncertainty remains about species migrations and habitat change at the local scale. The advantages and disadvantages of bioclimatic modelling are reviewed. It is very likely that there will be a substantial rise in the number of invasive species as a result of climate and other factors of global change, with serious effects on particular habitats.
While recognizing that the Bern Convention, the Habitats Directive and individual countries have made major progress in determining which species required priority action through habitat conservation and the creation of ecological networks, implementation is not yet complete, especially in terms of area management and species-level conservation.
Given that baseline data are still far from complete, for example on threatened species, identity and extent of invasions, the number of species for which conservation/management/recovery plans have been implemented, it is difficult to determine appropriate targets for action.
The various conservation strategies available, both in situ and ex situ are considered and the need for a critical look at their effectiveness is stressed, as well as detailed consideration of novel approaches such as inter situs conservation, human assisted migration and conservation outside protected areas. .
An Annex is provided containing all Bern Convention listed species and information on their conservation status, availability of recovery plans and georeferenced points for niche modelling." (source : auteurs)Type de publication : rapport d'études Référence biblio : Heywood V. (coord.), 2009 - Convention of the conservation of european wildlife and natural habitats : Standing committee, 29th meeting (Bern, 23-26 november 2009). The impact of climate change on plant species in Europe : Final version. Bern : Council of Europe, 98 p. ID PMB : 5304 Permalink : http://www.cbnbrest.fr/catalogue_en_ligne/index.php?lvl=notice_display&id=5304 Exemplaires
Cote Localisation Disponibilité X 21.3 Nantes Exclu du prêt Sensitivity of ephemeral wetland swards with Isoetes histrix Bory to environmental variables : Implications for the conservation of Mediterranean temporary ponds / Simonetta Bagella in Aquatic Conservation : Marine and Freshwater Ecosystems, vol. 23, n°2 (Année 2013)
Titre : Sensitivity of ephemeral wetland swards with Isoetes histrix Bory to environmental variables : Implications for the conservation of Mediterranean temporary ponds Type de document : Livre Auteurs : Simonetta Bagella, Auteur ; Maria Carmela Caria, Auteur Année de publication : 2013 Article en page(s) : pp. 277-290 Langues : Anglais Catégories : [habitats/milieux] ZH - Zones humides
[Thèmes] VégétationMots-clés : biodiversité sécheresse Directive Habitats gestion de l'habitat marécage Résumé : "Small-scale landscape elements such as freshwater ponds and pools remain poorly characterized and vulnerable to destruction, despite their significant contribution to regional aquatic biodiversity.
Ephemeral wetland swards supporting Isoetes histrix, which are considered priority interest habitats by the European Habitats Directive on the conservation of wild fauna and flora (codex 3170* – Mediterranean temporary ponds), typify concave pond shorelines (Habitat A) and very shallow flat temporary ponds (Habitat B).
It is hypothesized that although this sward type is highly specialized for growth in waterlogged soils, it is highly sensitive to changes in composition and seasonal dynamics related to varied environmental conditions. The present study was aimed at comparing plant assemblages, and successional processes and dynamics during the growing season between different habitat types; and identifying the key factors influencing spatial variability.
Vegetation was sampled three times during the growing season in the two habitat types (i.e A and B). At each site a range of environmental variables was also recorded.
PERMANOVA analysis indicated that plant assemblages differed between the two habitat types throughout the growing season. The different hydroperiod length was the main factor responsible for the specificity of the two habitats, revealed by CCA. However, the pattern of successional processes and seasonal dynamics was similar between the two habitats.
The results confirmed the hypothesis, and strengthened the understanding of the relevance of hydroperiod length to plant assemblages in ephemeral ponds.
The two habitats exhibit unique characteristics, and represent different aspects of priority habitat 3170*; therefore, to ensure that the highest level of biodiversity is maintained, measures must be taken to protect both sward habitats." (source : auteurs)Type de publication : périodique Référence biblio : Bagella S., Caria M., 2013 - Sensitivity of ephemeral wetland swards with Isoetes histrix Bory to environmental variables : Implications for the conservation of Mediterranean temporary ponds. Aquatic Conservation : Marine and Freshwater Ecosystems, 23 (2) : 277-290. ID PMB : 71614 Permalink : http://www.cbnbrest.fr/catalogue_en_ligne/index.php?lvl=notice_display&id=71614
in Aquatic Conservation : Marine and Freshwater Ecosystems > vol. 23, n°2 (Année 2013) . - pp. 277-290[article]Exemplaires
Cote Localisation Disponibilité aucun exemplaire 
Titre : Phytosociological characterization of Sphagnum pylaesii Brid. communities in Northwest Spain Type de document : Livre Auteurs : Juan Luis Rodriguez Luengo, Auteur ; Jesùs Izco, Auteur ; Pablo Ramil, Auteur Année de publication : 2013 Article en page(s) : pp. 201-2013 Langues : Anglais Mots-clés : tourbière Scheuchzerio-Caricetea nigrae plante menacée Directive Habitats Résumé : "Sphagnum pylaesii Brid. est une espèce possédant des populations relictuelles dans le nord—ouest de l'Espagne. Ici nous présentons de nouvelles donnés sur sa distribution en Espagne (UTM 10 × 10 et 1 × 1 km) et la communauté de laquelle elle fait partie (Sphagno pylaesii—Caretum verticillati). En plus de Sphagnum pylaesii, cette communauté contient un certain nombre d'espèces menacées et d'espèces endémiques de la Péninsule Iberique. Sphagnum pylaesii et la communauté à Sphagnum pylaesii sont inscrites aux annexes de la Directive Habitat (92/43/CEE)." Type de publication : périodique Référence biblio : Rodriguez Luengo J., Izco J., Ramil P., 2013 - Phytosociological characterization of Sphagnum pylaesii Brid. communities in Northwest Spain. Acta botanica gallica, 148 (3) : 201-2013. En ligne : https://www.tandfonline.com/doi/abs/10.1080/12538078.2001.10515888 Format de la ressource électronique : document Permalink : http://www.cbnbrest.fr/catalogue_en_ligne/index.php?lvl=notice_display&id=66031
in Acta botanica gallica > vol. 148, n°3 (Année 2003) . - pp. 201-2013[article]Exemplaires
Cote Localisation Disponibilité aucun exemplaire
Titre : Les évaluations d'incidences Type de document : Livre Auteurs : Romain Ecorchard, Auteur Année de publication : 2013 Article en page(s) : p. 23 Langues : Français Mots-clés : législation européenne directive habitats Résumé : "De prime abord, le droit européen est un peu loin des préoccupations des gestionnaires. Il a pourtant des répercussions très concrètes sur leur quotidien, en témoigne un arrêt de la Cour de justice de l’Union européenne qui opposa, le 4 mars 2010, la Commission européenne à la France ." (source : auteur) Type de publication : périodique Référence biblio : Ecorchard R., 2013 - Les évaluations d'incidences. Espaces naturels, 44 : 23. ID PMB : 59724 En ligne : http://www.espaces-naturels.info/evaluations-incidences Format de la ressource électronique : document Permalink : http://www.cbnbrest.fr/catalogue_en_ligne/index.php?lvl=notice_display&id=59724
in Espaces naturels > n°44 (Octobre 2013) . - p. 23[article]Exemplaires
Cote Localisation Disponibilité P0185 Brest Exclu du prêt P0185 Caen Exclu du prêt
