Animaux discrets et sensibles au faisceau de nos lampes, c’est avec de nombreuses précautions que les naturalistes et scientifiques les étudient. Un monde fascinant est ainsi mis à jour, dont la symétrie avec le nôtre est frappante. Souterrain ou aérien, nocturne plus que diurne, sonore plus que visuel…
L’univers extraordinaire des chauves-souris est à découvrir au fil des 100 questions inspirées des sciences humaines, de la biologie, de l’écologie et d’une pratique quotidienne de terrain.
After a monoculture phase, it is becoming an unavoidable necessity to diversify perennial crops (cocoa, rubber, palm or coconut oil) in humid tropical areas. Why and when should these diversification processes take place? What type of planter is involved? What are the constraints to diversification? How do public policies and private actions interfere? The authors answer these questions through fifteen case studies, mainly located in Africa and South-East Asia, thereby providing a better understanding of the economies of family plantations and their recent changes.
Les populations de cerfs, de chevreuils et de sangliers explosent en Europe, générant des difficultés de gestion en ville et en milieu rural. Qui commet les dégâts : l’homme qui détériore l’environnement naturel de la faune dans son intérêt économique ou bien la faune qui prélève les productions humaines pour survivre ? Selon l'auteur, l’équilibre entre les Ongulés et les milieux forestier ou agricole repose sur la connaissance du comportement des animaux et sur la régulation par la chasse, sans oublier la mortalité naturelle due à la réapparition des grands prédateurs. La solution résiderait avant tout dans la concertation entre usagers de la nature.
Public : chasseurs, forestiers, agriculteurs et passionnés qui recherchent l’équilibre entre le grand gibier et son milieu.
This work provides an overview of various models of sensitivity analysis and exploration of models developed in oceanography, fishery, environment, water management, ecology, agronomy, etc. It suggests an approach for choosing the method most suitable for its need and shows how to apply these methods in reality. It is targeting modellers and model users who wish to acquire or consolidate their understanding of analytical methods and exploring models through simulations.
Already a reference in this field, the guide updates and adds sixty new species and ninety photos, thereby offering a panorama of these garden, glasshouse and nursery pests. From rose aphids via all the butterflies and their caterpillars, it lists, details and illustrates everything you need to know: scientific classification, damage caused, distribution area, favourite hosts, biology and control methods.
It will win over entomologists, researchers, technicians, experts in horticulture and fruit growing and also amateur gardeners.
Rupicolous environments include rock faces, coastal cliffs, screes, bare and stony soils of proglacial surfaces and also quarries and ore dumps. This book presents the riches of rupicolous environments, explains how they operate as ecosystems in relation with their media, explains their heritage interest as a species repository and innovation laboratory, discusses how to restore them and advocates their integrated and sustainable management.
The work presents a sociological and historical analysis of transformations in French agriculture since the Second World War. The author shows that some farmers continue to invent unusual productive forms that withstand the on-going extension of industrial agriculture. The work has six chapters and can be a medium for teaching the history of French agriculture.
Based on archive documents and surveys, the author analyses the transformation of farmers, both men and women, since the beginning of the last century. It addresses the influences of post-war modernisation and group farming in the 1960s. It examines the changes in certain farming populations, pig breeders, organic farmers and also women. Lastly, the author presents the effects of a reconstructed work area (rurbanisation, for example) on today's farmers.
This work plots the crazy saga of natural rubber production on American soil since the end of the 19th century to date. Between quarrels of enthusiasts, agronomic experimentation, lobbying by oil industrialists and political about-turns, the guayule and a few other latex plants have shown the potential for founding a new industry entirely separate from the rubber tree that currently provides the world with natural rubber almost exclusively.
Partly instrumentalised by the policies, the nature conservation movements and the economists, ecology is the vector for many perceived ideas. The ecologists themselves fuel the debate dramatising the future of the planet, in the belief that they are giving legitimacy to their discipline. But are the resources used for ecological research in line with the anxieties and appeals from society and managers? This work is the testimony of an ecologist at the heart of this multi-discipline research.