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.
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.
Threatened by changing environmental conditions and anthropogenic actions, cold water corals are currently classed as a vulnerable ecosystem by several international institutions. One objective of this study is to characterise their habitats from the geological shapes of the sea bed.
Why do desert mammals have such large ears?Why do the cactus breathe in reverse fashion to other plants?How did human beings choose to live in such hostile regions?What pushes man to cross these immense open spaces?The author is a specialist in deserts. He leads us through grandiose landscapes of stone and sand, in the wake of caravans, in the world of gold seekers, he makes us share the hard life of hunters-collectors and discover marvellous plants and animals as well as sometimes surprising stories of lost explorers or entire towns appearing from nowhere.
The authors propose an "opening" through the garrigues starting from the soil composition and its history up to the tops of trees found there like the holm oak. The exceptional diversity of the fauna can also be explored when turning the pages.
A stellar case is Amazonia, which the authors use to analyse the complex relationships between territory, sustainable development and modernity. They highlight the conditions for adopting sustainable development by the authorities and populations.
The advanced age of the forests that serve to protect against natural hazards suggests that they may become unstable in the near future. This illustrated guide should help forest managers renew the plant cover in these forests at a reasonable cost.
This summary places Lake Annecy within its environment. It describes how the physico-chemistry of its water and its microoorganisms have changed, along with its biocoenosis, from the appearance of new fish species to the disappearance of others.
Why are forest ecosystems so vulnerable to storms? Why do such events occur? How can we reduce their effects? This book gives the scientific community's answers to those questions.