Suchergebnisse

International audience There is mounting evidence of pollinator decline all over the world and consequences in many agricultural areas could be significant. We assessed these consequences by measuring 1) the contribution of insect pollination to the world agricultural output economic value, and 2) the vulnerability of world agriculture in the face of pollinator decline. We used a bioeconomic approach, which integrated the production dependence ratio on pollinators, for the 100 crops used directly for human food worldwide as listed by FAO. The total economic value of pollination worldwide amounted to €153 billion, which represented 9.5% of the value of the world agricultural production used for human food in 2005. In terms of welfare, the consumer surplus loss was estimated between €190 and €310 billion based upon average price elasticities of –1.5 to –0.8, respectively. Vegetables and fruits were the leading crop categories in value of insect pollination with about €50 billion each, followed by edible oil crops, stimulants, nuts and spices. The production value of a ton of the crop categories that do not depend on insect pollination averaged €151 while that of those that are pollinator-dependent averaged €761. The vulnerability ratio was calculated for each crop category at the regional and world scales as the ratio between the economic value of pollination and the current total crop value. This ratio varied considerably among crop categories and there was a positive correlation between the rate of vulnerability to pollinators decline of a crop category and its value per production unit. Looking at the capacity to nourish the world population after pollinator loss, the production of 3 crop categories – namely fruits, vegetables, and stimulants– will clearly be below the current consumption level at the world scale and even more so for certain regions like Europe. Yet, although our valuation clearly demonstrates the economic importance of insect pollinators, it cannot be considered as a scenario since it does not ...

International audience ; Humans play an undeniable role in the acceleration of threats to the diversity of ecosystems, species and genes. This book is a response to the urgent need of policy oriented socio-ecological research, profoundly based on empirical evidence. Socio-environmental patterns and political responses are compared through the use of case studies analyzing a range of pressures to biodiversity. Aquatic bioinvasions in the Ebro River and Lake Izabal exemplify socio-environmental processes linked to river basins. Other cases examine processes at the regional level: the social attitudes to genetically modified organisms in Catalan agriculture, the implementation of a Regional Strategy for Biodiversity in the I^le-de-France, the management of an invasive insect in the city of Paris, and the comparative analysis in Kent (UK) and Tartu (Estonia) county of the effects of the Common Agricultural Policy on pollinators' diversity. An economic valuation of the decline of pollinators in Germany and Spain, and an analysis of land use changes in the new EU member states focus on processes at the national scale within the EU frame. A case study in Argentina, about the emergence of pesticide resistance in an invasive pest, embodies the relationship between a national state and the processes of the world economy. The ALARM project aims to promote creative thinking. Inspired by ecological economics, methodologies employed range from multi-criteria evaluation and participatory techniques to social network analysis, valuation of environmental services, scenario modelling and historical analysis. The authors have uniquely explored case-study-based research for socio-economic analyses of biodiversity risks. Emphasis is put both on the lessons learnt from the comparative analysis as well as on the methodological innovations.

International audience ; Humans play an undeniable role in the acceleration of threats to the diversity of ecosystems, species and genes. This book is a response to the urgent need of policy oriented socio-ecological research, profoundly based on empirical evidence. Socio-environmental patterns and political responses are compared through the use of case studies analyzing a range of pressures to biodiversity. Aquatic bioinvasions in the Ebro River and Lake Izabal exemplify socio-environmental processes linked to river basins. Other cases examine processes at the regional level: the social attitudes to genetically modified organisms in Catalan agriculture, the implementation of a Regional Strategy for Biodiversity in the I^le-de-France, the management of an invasive insect in the city of Paris, and the comparative analysis in Kent (UK) and Tartu (Estonia) county of the effects of the Common Agricultural Policy on pollinators' diversity. An economic valuation of the decline of pollinators in Germany and Spain, and an analysis of land use changes in the new EU member states focus on processes at the national scale within the EU frame. A case study in Argentina, about the emergence of pesticide resistance in an invasive pest, embodies the relationship between a national state and the processes of the world economy. The ALARM project aims to promote creative thinking. Inspired by ecological economics, methodologies employed range from multi-criteria evaluation and participatory techniques to social network analysis, valuation of environmental services, scenario modelling and historical analysis. The authors have uniquely explored case-study-based research for socio-economic analyses of biodiversity risks. Emphasis is put both on the lessons learnt from the comparative analysis as well as on the methodological innovations.

International audience ; Humans play an undeniable role in the acceleration of threats to the diversity of ecosystems, species and genes. This book is a response to the urgent need of policy oriented socio-ecological research, profoundly based on empirical evidence. Socio-environmental patterns and political responses are compared through the use of case studies analyzing a range of pressures to biodiversity. Aquatic bioinvasions in the Ebro River and Lake Izabal exemplify socio-environmental processes linked to river basins. Other cases examine processes at the regional level: the social attitudes to genetically modified organisms in Catalan agriculture, the implementation of a Regional Strategy for Biodiversity in the I^le-de-France, the management of an invasive insect in the city of Paris, and the comparative analysis in Kent (UK) and Tartu (Estonia) county of the effects of the Common Agricultural Policy on pollinators' diversity. An economic valuation of the decline of pollinators in Germany and Spain, and an analysis of land use changes in the new EU member states focus on processes at the national scale within the EU frame. A case study in Argentina, about the emergence of pesticide resistance in an invasive pest, embodies the relationship between a national state and the processes of the world economy. The ALARM project aims to promote creative thinking. Inspired by ecological economics, methodologies employed range from multi-criteria evaluation and participatory techniques to social network analysis, valuation of environmental services, scenario modelling and historical analysis. The authors have uniquely explored case-study-based research for socio-economic analyses of biodiversity risks. Emphasis is put both on the lessons learnt from the comparative analysis as well as on the methodological innovations.

International audience ; Humans play an undeniable role in the acceleration of threats to the diversity of ecosystems, species and genes. This book is a response to the urgent need of policy oriented socio-ecological research, profoundly based on empirical evidence. Socio-environmental patterns and political responses are compared through the use of case studies analyzing a range of pressures to biodiversity. Aquatic bioinvasions in the Ebro River and Lake Izabal exemplify socio-environmental processes linked to river basins. Other cases examine processes at the regional level: the social attitudes to genetically modified organisms in Catalan agriculture, the implementation of a Regional Strategy for Biodiversity in the I^le-de-France, the management of an invasive insect in the city of Paris, and the comparative analysis in Kent (UK) and Tartu (Estonia) county of the effects of the Common Agricultural Policy on pollinators' diversity. An economic valuation of the decline of pollinators in Germany and Spain, and an analysis of land use changes in the new EU member states focus on processes at the national scale within the EU frame. A case study in Argentina, about the emergence of pesticide resistance in an invasive pest, embodies the relationship between a national state and the processes of the world economy. The ALARM project aims to promote creative thinking. Inspired by ecological economics, methodologies employed range from multi-criteria evaluation and participatory techniques to social network analysis, valuation of environmental services, scenario modelling and historical analysis. The authors have uniquely explored case-study-based research for socio-economic analyses of biodiversity risks. Emphasis is put both on the lessons learnt from the comparative analysis as well as on the methodological innovations.

Chaque année, entre 55000 et 70000 tonnes de substances actives phytopharmaceutiques, incluant celles utilisables en agriculture biologique et de biocontrôle, sont vendues sur le territoire français métropolitain et d'outre-mer et sont utilisées pour la protection des cultures ou l'entretien des jardins, espaces végétalisés et infrastructures (JEVI). Dans le même temps, le rapport sur l'évaluation mondiale de la biodiversité et des services écosystémiques établi en 2019 par la Plateforme intergouvernementale scientifique et politique sur la biodiversité et les services écosystémiques (IPBES) dresse le bilan alarmant d'une érosion sans précédent de la biodiversité. La pollution chimique générée par les activités humaines, incluant les produits phytopharmaceutiques (PPP), est identifiée parmi les causes de cette érosion. Cette pollution s'ajoute à d'autres pressions, comme les destructions d'habitats causées par l'urbanisation, l'intensification des pratiques agricoles et sylvicoles, et les conséquences du changement climatique. Face à ce constat, la réglementation européenne en matière de mise sur le marché des PPP vise un degré élevé de protection, avec en particulier pour principe d'éviter tout effet inacceptable sur l'environnement. Toutefois, elle ne parvient pas complètement à atteindre cet objectif, en raison notamment d'une prise en compte insuffisante de la diversité des interactions telles qu'elles se produisent dans l'environnement (entre substances, entre organismes, avec une variété de facteurs physico-chimiques, etc.). C'est dans ce contexte que les ministres chargés de l'Environnement, de l'Agriculture et de la Recherche ont sollicité INRAE et l'Ifremer pour réaliser un état des lieux des connaissances scientifiques relatives aux impacts des PPP sur la biodiversité et les services écosystémiques. La précédente expertise scientifique collective (ESCo) portant sur Pesticides, agriculture et environnement avait été réalisée en 2005. Le présent exercice consiste à en actualiser les résultats, en les ...