Search

The nature reserve of Bec du Feyi near Wibrin has been the object of protection and nature conservation management measures for over 30 years to ensure its perennity. The reserve consists mainly of a mosaic of hay meadows, marshes, ponds, aquatic environments and old clear-cuts in the process of recolonization. The manager shares his thoughts on the evolution of nature through the various environments and habitats that make up this natural site, based on the impact of management actions, but also based on the influence of the numerous factors affecting the local environment and, more broadly, climate change. [ABSTRACT FROM AUTHOR]

Copyright of Biotechnologie, Agronomie, Societe et Environnement is the property of Les Presses Agronomiques de Gembloux and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Conceived as a baseline for the management and conservation of the marine protected area of the French Southern Territories (réserve naturelle nationale des Terres australes françaises), the checklist of marine macroalgae of the Kerguelen Islands was updated based on an extensive review of the literature and scientific databases, from the first report of the Ross expedition, in 1840, to the most recent works. This work was also conceived as a starting point for forthcoming investigations using molecular systematics tools and for monitoring the effects of global change on sub-Antarctic marine ecosystems. After a brief history of scientific campaigns, a list of 166 species was established (103 Rhodophyta, 35 Chlorophyta and 28 Ochrophyta [Phaeophyceae]). Molecular systematics studiess have shown the existence of recurrent discrepancies between the established, morphology-based taxonomy and molecular species delimitation, calling for a revision of systematics. Nevertheless, a first analysis of biogeographical affinities of the marine flora of the Kerguelen Islands is carried out and preliminary results are partially congruent with the main regions currently recognized in the Southern Ocean suggesting the importance of long-distance dispersal to explain the observed distribution patterns. [ABSTRACT FROM AUTHOR]

This article examines the state of colonisation in 2019 by invasive alien species of the 16 most important protected natural reserves of Pro Natura Vaud. Based on the collected data and on the maps that have been produced, some management methods have been proposed to the wildland's managers in order to prioritize, determine and coordinate the actions against those species in all the reserves of Pro Natura Vaud. These methods have been applied directly after their adoption. [ABSTRACT FROM AUTHOR]

Copyright of Études Caribéennes is the property of Etudes Caribeennes and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Knowledge & Management of Aquatic Ecosystems is the property of EDP Sciences and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Le 07 août 2009, est survenue dans la Réserve naturelle nationale des Coussouls de Crau, une fuite d'oléoduc. Celle-ci a libéré 5 400m3de pétrole brut et détruit 8 ha d'une végétation de type steppique, particulièrement rare sur le continent européen. Les journées qui ont suivi l'accident ont révélé le manque de préparation des gestionnaires et la méconnaissance des exploitants vis-à-vis de la valeur patrimoniale de l'habitat. Dans un premier temps, c'est ainsi seulement le caractère « industriel » de l'accident qui a été pris en compte. Son impact sur le patrimoine naturel ne sera intégré que lors de la mise en place d'un comité de suivi technique créé par arrêté préfectoral. Au sein du groupe technique consacré à la biodiversité, comprenant les représentants de l'administration environnementale, les gestionnaires d'espaces naturels, l'exploitant, ses bureaux d'études et des experts scientifiques, vont s'élaborer des protocoles innovants de réhabilitation du site. C'est le dialogue constant au sein de ce groupe qui a permis l'acceptation des innovations par les différents intervenants. Cet accident va ainsi permettre la réalisation d'opérations d'ingénierie écologique originales qui n'auraient pas été mises en place sans l'existence de ce dialogue, les moyens financiers et l'urgence des interventions à mener.

The «ontological turn» in anthropology challenges the universality of the nature-culture divide and calls for alternative approaches to different perceptions of environments. This article studies how dwellers, administrators, field guides and tourists perform a Chinese nature reserve. By testing the heuristic value of Philippe Descola’s cosmological grid, it explores the ways in which a variety of actors perceive themselves and «others», how they categorise the place and the beings that live in it, and what they do and think others do inside. As a result, it shows how mutual ignorance of these diverging engagements in a common environment gives rise to «ontological conflicts», while new possibilities of coexistence emerge.

Protected forest areas (PFAs) are key features of biodiversity conservation, and knowledge about long-term development is crucial in evaluating their efficiency and management needs. Longitudinal data on forest structure in PFAs is uncommon and often from small areas. Here we use data from the Swedish National Forest Inventory to study changes in more than 750 000 ha of PFAs over 60 years. Structures important for biodiversity, e.g., number of large trees and the volume of hard deadwood, including both standing and down wood, have more than doubled. The initial volume of deadwood, however, was very low. The overall tree species composition was stable over time, and only among the largest trees were there indications of a shift towards the late successional Norway spruce (Picea abies (L.) Karst.). Deadwood increased independent of species, size of wood, and site characteristics. This increase was positively related to the volume of living trees and forest age. We conclude that Swedish PFAs, in the absence of active management and under fire suppression at the landscape scale, develop structural components that are crucial for conservation of biodiversity. However, although tree species composition appears stable, present disturbance regimes in the PFAs are considerably different from those in naturally dynamic forests, which may have implications for long-term biodiversity maintenance. [ABSTRACT FROM AUTHOR]

Copyright of Revue d'Etudes en Agriculture et Environnement is the property of Institut National de la Recherche Agronomique (INRA) and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The National Nature Reserve of Platier d'Oye was established 20 years ago. It offers an outstanding diversity of littoral habitats and is a residual natural site on the heavily industrialized and urbanized coast of Nord-Pas-de-Calais (northern France). The wide variety of stakeholders with divergent interests generates numerous situations of competition and conflict which tend to overshadow the naturalist objectives of the reserve. The absence of any real arbitration to establish priorities brings to the foreground two major problem areas: 1) the management of coastal erosion, for which the objectives of the reserve and the interests of the local residents follow two opposing sets of logics and, 2) illegal hunting, perceived as a customary right due to long-standing acceptance of this practice. Within this heavily invested territory a system of governance based on the "win-win" principle may promote the illusion that conflicts can be resolved without adopting genuinely sustainable choices considering the "Nature value" of this shared heritage. [ABSTRACT FROM AUTHOR]

The article presents information about the Amana nature reserve in French Guiana, which was established for the protection of marine turtles that nest on beaches. It is noted that the eggs of these sea turtles are in danger of being taken by Amerindian poachers. Comments are given concerning the tensions between Amerindians claiming their ancestral right to collect the eggs and conservationists seeking to protect the nature reserve.

Copyright of VertigO is the property of La Revue Electronique en Sciences de l'Environnement VertigO and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Le parc national Manovo-Gounda-Saint Floris, situé dans le Nord du territoire de la République Centrafricaine, abrite une grande diversité d'animaux sauvages qui présentent un attrait réel pour le tourisme de vision que l'on voudrait y développer. L'extension et la valeur fourragère des formations végétales pâturables permettraient aisément l'accroissement de la population animale globale. Mais diverses espèces de grands mammifères, parmi lesquelles l'éléphant et la girafe, sont en danger de régression par suite de l'importance du braconnage. Diverses possibilités sont envisagées qui pourraient permettre de développer le tourisme de vision et d'accentuer la lutte contre le braconnage