Erwann Lagabrielle

Erwann Lagabrielle
University of La Réunion · Department of Geography

Senior lecturer in geography (PhD)

About

67
Publications
19,681
Reads
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Citations
Introduction
My interdisciplinary and collaborative research is intended to accompany the design and implementation of ecosystem-based public policies in the terrestrial and marine environment. I use geographic information system, remote sensing data, social surveys and participatory methods. Geographic areas : Indian Ocean, Southern Africa, EU overseas, Réunion Island
Additional affiliations
September 2012 - present
University of La Réunion
Position
  • Lecturer
September 2010 - September 2012
Institute of Research for Development
Position
  • PostDoc Position
September 2008 - September 2010
Nelson Mandela University
Position
  • PostDoc Position

Publications

Publications (67)
Article
Full-text available
This paper considers participatory modelling to integrate biodiversity conservation into land use planning and to facilitate the incorporation of ecological knowledge into public decision making for spatial planning. Réunion Island has experienced rapid urban and agricultural expansion, which threaten its unique biodiversity. In this context, we de...
Article
Full-text available
Systematic conservation planning (SCP) to design marine protected areas (MPAs) has traditionally focused on species distributions or benthic habitat features that drive the determination of conservation priorities. Pelagic ecosystem protection is usually incidental because these ecosystems are often data-poor and are difficult to visualize in a pla...
Article
Full-text available
Understanding the environmental drivers of interactions between predators and humans is critical for public safety and management purposes. In the marine environment, this issue is exemplified by shark-human interactions. The annual shark bite incidence rate (SBIR) in La Réunion (Indian Ocean) is among the highest in the world (up to 1 event per 24...
Article
Marine spatial planning (MSP), a process aimed at negotiating the spatial allocation of human activities at sea, has to integrate new challenges arising from growing human activities and their impacts on threatened marine ecosystems. Yet, human–wildlife interactions that result in threat to humans are rarely explicitly addressed in planning and alm...
Article
Full-text available
Oceanic islands are productive ecosystems, and so have higher densities of many marine predators. We investigated the dynamics of elasmobranch and teleost predators in coastal waters off Réunion Island, Indian Ocean, using fisheries-independent data from a preventative shark fishing program from January 2014 to December 2019. We developed a moonlig...
Technical Report
Full-text available
Full project title : « MOZALINK - Linking marine science, traditional knowledge and cultural perceptions of the sea in the Mozambique Channel to build tomorrow’s marine management using spatial simulation tools and educational game » This final report was jointly developed by the Research Institute for Development (IRD, France) with the contributio...
Article
Fishing catch is often used as a cost in marine conservation planning to avoid areas of high fishing activity when identifying potential marine reserve locations. However, the theory of marine reserves indicates that reserves are more likely to benefit fisheries in areas of heavy fishing activity that would otherwise be overfished. Whether or not f...
Chapter
Full-text available
Bouchard, Christian, Annabel Céleste et Erwann Lagabrielle (2019), « Notes et cartographie : maritimisation et géopolitique maritime dans le canal du Mozambique » (Dossier) dans Folio, Fabrice et Marie-Annick Lamy-Giner, Le Mozambique et le canal de Mozambique : un espace à l’heure des opportunités et défis. Université de La Réunion : Presses Unive...
Chapter
Climate change constitutes a new threat to the sustainability of coral ecosystems. The vulnerability of a coral ecosystem to climate-related hazards can greatly increase when it suffers from chronic anthropogenic disturbances (wastewater discharges, eutrophication). These indeed reduce the ability of coral reefs to withstand these hazards (resistan...
Article
Climate change constitutes a new threat to the sustainability of coral ecosystems. The vulnerability of a coral ecosystem to climate-related hazards can greatly increase when it suffers from chronic anthropogenic disturbances (wastewater discharges, eutrophication). These indeed reduce the ability of coral reefs to withstand these hazards (resistan...
Article
Full-text available
A correction to this article has been published and is linked from the HTML and PDF versions of this paper. The error has been fixed in the paper.
Article
Full-text available
This study proposes and discusses a multi-scale spatial planning method implemented simultaneously at local and national level to prioritize ecosystem management actions across landscapes and seascapes. Mismatches in scale between the occurrence of biodiversity patterns and ecological processes, and the size and nature of the human footprint, and t...
Data
Supplementary information to: Lagabrielle Erwann, Allibert Agathe, Kiszka Jeremy J., Loiseau Nicolas, Kilfoil James P., Lemahieu Anne (2018). Environmental and anthropogenic factors affecting the increasing occurrence of shark-human interactions around a fast-developing Indian Ocean island. Scientific Reports, 8(1), 3676 (13p.). http://doi.org/10....
Article
Abstract This paper reflects on collaborative landscape research conducted in Reunion Island, an outermost region of the European Union. On this 2,500 km2 tropical island also considered a major international biodiversity hotspot, land-use planners must address important challenges, especially growing population densities and urban sprawl that caus...
Article
Full-text available
The lancehead (Bothrops lanceolatus) is a poisonous snake endemic to Martinique, an island in the Lesser Antilles arc. Today, this snake is on the verge of extinction. The recorded number of snakes killed yearly between 1970 and 2002 decreased by 97%. Despite the production of an antivenom in 1993, the local authorities set up a financial reward to...
Article
Full-text available
Marine resources are under increasing pressure from a wide variety of threats such as overfishing, offshore energy development, and climate change. As marine ecosystems degrade, so do the well-being and livelihoods of humans that depend directly on the ecosystem goods and services they provide. Marine protected areas have been proposed to protect b...
Chapter
As mentioned in previous chapters, the companion modelling approach is based on principles laid down in the ComMod Charter (Collectif ComMod 2005). In this founding document, two fields of application were identified: to produce knowledge on the social and ecological systems under study and to facilitate cooperation between different stakeholders i...
Article
Full-text available
1. Connectivity is a crucial process underpinning the persistence, recovery, and productivity of marine ecosystems. The Convention on Biological Diversity, through the Aichi Target 11, has set the ambitious objective of implementing a “well connected system of protected areas” by 2020. 2. This paper identifies eight challenges toward the integratio...
Technical Report
Full-text available
The project is based on the Systematic Conservation Planning (SCP) concept. This is the process of deciding where, when and how to allocate limited biodiversity conservation resources to minimize the loss of biodiversity, ecosystem services and other valuable aspects of the natural environment. The process has been particularly influential in South...
Book
Full-text available
As mentioned in previous chapters, the companion modelling approach is based on principles laid down in the ComMod Charter (Collectif ComMod 2005). In this founding document, two fields of application were identified: to produce knowledge on the social and ecological systems under study and to facilitate cooperation between different stakeholders i...
Chapter
Full-text available
The islands of the Western Indian Ocean are well known for their unique biodiversity. However, much of the native habitat has been destroyed and the remainder is threatened by invasive alien species. In this review we assessed the different protected area systems, synthesised the history of invasive alien plants and actions against them, and compar...
Article
The islands of the Western Indian Ocean are well known for their unique biodiversity. However, much of the native habitat has been destroyed and the remainder is threatened by invasive alien species. In this review we assessed the different protected area systems, synthesised the history of invasive alien plants and actions against them, and compar...
Technical Report
Full-text available
Analyse des conditions environnementales et des usages de la mer associés aux attaques de requin à l'île de la Réunion entre 1980 et 2011
Article
Full-text available
The Government of Madagascar plans to increase marine protected area coverage by over one million hectares. To assist this process, we compare four methods for marine spatial planning of Madagascar's west coast. Input data for each method was drawn from the same variables: fishing pressure, exposure to climate change, and biodiversity (habitats, sp...
Data
This text provides additional information on methods including modeling fish species distributions with MaxEnt, details of Marxan and Zonation runs, measuring representation of conservation features across results, and measuring exposure. (DOC)
Data
Focal fish species list. This list shows the 274 fish species with distributions modeled in MaxEnt for use in the analysis and data sources. OBIS refers to the Ocean Biogeographic Information System (http://www.iobis.org/). WCS, WWF, and CI refer to data provided by Wildlife Conservation Society, World Wildlife Fund, and Conservation International,...
Book
Full-text available
The aim of this study is to evaluate in 2012 the progress that has been made, since the first inventory done in 2008, on the Mediterranean system of MPAs in view of the above mentioned objectives: does the network cover 10% of the Mediterranean, is it repre- sentative of the Mediterranean’s diversity, are MPAs well-connected and well managed? The M...
Technical Report
Full-text available
This report provides a summary of the updated products of the KwaZulu-Natal (KZN) Coastal and Marine Biodiversity Plan previously referred to as the SeaPLAN project, and aims to 1) provide a systematic framework for assessment of the status of biodiversity protection in the province of KZN, and 2) enable planning for marine biodiversity protection...
Article
Dans un contexte d'erosion globale de la biodiversite mondiale, la planification de la conservation vise a identifier des aires prioritaires pour les actions de conservation in situ. Cet article propose une synthese historique et methodologique de la planification de la conservation depuis les approches ad hoc jusqu'au Systematic Conservation Plann...
Chapter
Full-text available
The companion modelling approach initially was conceived and tested at a local level because of the focus on resource users. Based on the premise that different stakeholders involved in resource management operate with different areas of reference and time scales in mind, the approach focuses on the representation of this diversity in its tools and...
Book
Full-text available
L’approche de modélisation d’accompagnement a historiquement été conçue et expérimentée à un niveau local du fait d’une entrée privilégiée par l’usager de la ressource. Dès ses prémisses la démarche reconnait la diversité des territoires de référence et des échelles de temps mobilisés par les différents acteurs engagés dans la gestion des ressource...
Article
Full-text available
Over the last century, island biodiversity has become one of the most threatened in the world. Although many island conservation plans address biodiversity requirements at the species level, few plans address the spatial requirements of the biodiversity processes that underpin the persistence of these species. Using systematic conservation planning...
Book
Full-text available
Ce chapitre fait la synthèse des référents théoriques aux sources ou proches de la posture de modélisation d'accompagnement: sciences de la complexité, apprentissage, simulation, sciences de la décision. Il aborde également les questions transdisciplinaires soulevées par la mise en oeuvre de cette démarche: enjeux de pouvoir et positionnement des c...
Article
Full-text available
Urban sprawl has been identified as one of the most negative effects of global population growth on the environment and biodiversity. Frequent monitoring of urban sprawl is needed to limit the impact of this ongoing phenomenon. This paper proposes precise monitoring of building construction using an object-based classification methodology applied t...
Article
Full-text available
Reunion Island in the Indian Ocean is experiencing rapid socio-economic change. The spatial component of this change was mapped using Spot images between 1989 and 2002. The change detection method used is a comparison of classifications (maximum likelihood and structural analysis). The results confirm a rapid increase in urban spread, a spatial mig...
Article
Full-text available
La Réunion (océan Indien) est un espace insulaire en essor socio-économique rapide. La composante spatiale observable de ces mutations a été cartographiée par télédétection à partir d’images Spot sur la période 1989-2002. La méthode de détection des changements mise en œuvre est une comparaison de classifications (maximum de vraisemblance et analys...
Article
Full-text available
Dans cette thèse nous développons des concepts, des méthodes et des outils pour intégrer la conservation de la biodiversité dans l'aménagement du territoire. Le site d'application est l'île de la Réunion (2512 km²) qui appartient à l'un des 34 points chauds de la biodiversité mondiale. Dans cet espace insulaire, les rapides mutations socio-économiq...
Book
Chapitre rédigé par le collectif ComMod regroupant 40 personnes. Son correspondant est François Bousquet (CIRAD, green)