Suchergebnisse

Coral reefs ecosystem -- Sponge and coral microbiomes -- Microbial diversity of sponge/coral microbiome -- Endolithic microbes in coral skeletons: algae or bacteria? -- The Bacteria Endozoicomonas: community dynamics, diversity, genomes and potential impacts on corals -- Microbes in gorgonian and soft corals -- Marine sponge holobionts in health and disease -- After the taxonomic identification phase: addressing the functions of symbiotic communities within marine invertebrates -- Carbon and nitrogen metabolism of sponge microbiome -- Integrative omics approach for the community function evaluation of sponge and coral microbiomes -- Response of sponge microbiomes to environmental variations -- Biosynthesis of antibiotics from microbial symbionts of sponges and corals -- Marine natural products from marine sponge-derived microorganisms -- Marine natural products from marine coral-derived microorganisms -- Natural products from sponge -- Natural products from corals -- Mass production of natural products from microbes derived from sponges and corals -- Marine enzymes from microbial symbionts of sponges and corals

Deciduous forests have been remarkably resilient throughout their history, recovering from major shifts in climate and surviving periods of massive deforestation. But today the world's great forests confront more ominous threats than ever before. This visionary book is the first to examine forests consisting of oaks, maples, hickories, beeches, chestnuts, birches and ecologically similar animals and plants on three continents-East Asia, Europe, and North America-to reveal their common origin back in time, the ecological patterns they share, and the approaches to conservation that have been attempted on their behalf. Although these forests face common problems, threats due to human activities vary. Different land use and agricultural practices on the three continents, as well as different attitudes about what is worth preserving, have led to strikingly different approaches to forest conservation. Robert Askins explores the strengths and weaknesses of conservation efforts across the continents and concludes that the ideal strategy for the future will blend the best ideas from each

Shipping list no.: 2009-0025-P. ; Distributed to some depository libraries in microfiche. ; Includes bibliographical references. ; Mode of access: Internet.

Grasslands cover around 30% of the Earth's terrestrial surface and provide important ecosystem services. On the other hand, grasslands are among the most endangered ecosystems, threatened by land-use change, mainly through agricultural intensification or abandonment, and ongoing climatic changes, such as warming and drought. The principal aim of this book is to give an overview of current knowledge and future challenges for ecological studies on grasslands and to provide new perspectives for the management and conservation of grassland ecosystems

Building on important themes that emerged from the 5th international canopy conference, this book summarizes the issue of "treetops at risk" and assembles a global authorship to examine past accomplishments and future initiatives critical in forest conservation.

Mountain ecosystems belong to the most endangered ecosystems in the world. Especially, the treeline ecotone acts as an indicator for environmental change. However, ecological processes in the treeline ecotone are not yet completely understood. The studies provided in this book may contribute to a better understanding of the interactions between vegetation, climate, fauna, and soils in the treeline ecotone. An introductory chapter is given on plants living under extreme conditions, climate change aspects, and methods for characterization of alpine soils. The following articles focus on mountainous areas in America, Europe and Asia. The Working Group on Mountain and Northern Ecosystems at the Insti- te of Landscape Ecology, University of Münster (Germany), has been working on topics related to the treeline ecotone for several decades. This period under the chairmanship of Friedrich-Karl Holtmeier has come to an end now when he retired in 2004. He initiated numerous studies in high mountains and in the North. Many of his students, who became infected by the 'mountain virus', will continue these investigations on ecological processes in the altitudinal and northern treeline ecotones. With this compilation of studies in mountain ecosystems we want to thank Friedrich-Karl Holtmeier for his excellent guidance in these cold and fascinating environments.

Einführung in die Renaturierungsökologie -- Welcher Lebensraum soll wiederhergestellt werden? Referenzökosysteme für die Renaturierung -- Maßnahmen der Ökosystemrenaturierung -- Wiedereinführung von Pflanzen- und Tierarten -- Zum Umgang mit nichteinheimischen Arten in der Ökosystemrenaturierung -- Monitoring und Erfolgskontrolle -- Wälder -- Moore -- Subalpines und alpines Grasland -- Fließgewässer -- Natürliche und anthropogene Stillgewässer -- Von Salz beeinflusste Ökosysteme und Nutzungstypen -- Marine Lebensräume in Nord- und Ostsee -- Heiden im Tief- und Bergland -- Wiesen und Weiden mesophiler, feuchter und kalkhaltiger Standorte -- Sandmager- bzw. Sandtrockenrasen der Küsten und des Binnenlandes -- Äcker -- Traditionelle Agroforstsysteme -- Städtische Ökosysteme -- Berg- bzw. Tagebaustandorte und Deponien -- Gründe und Motivationen für eine Ökosystemrenaturierung -- Akteure und ihre Rolle in der Ökosystemrenaturierung: Konfliktlösung und Akzeptanz durch Partizipation -- Ökonomische Aspekte der Renaturierung: Kosten und Nutzen -- Normen und Werte in der Ökosystemrenaturierung -- Zusammenfassende Überlegungen und Ausblick- Verzeichnis der Pflanzen- und Tierarten -- Literatur

Continuity and Change in Cultural Mountain Adaptations: From Prehistory to Contemporary Threats presents an international and interdisciplinary account of human cultural adaptation to mountainous environments over time. Mountain ecosystems are critical to the wellbeing of sizable populations in Eurasia, the Americas, and Africa. The book presents the evidence on continuity of human cultural adaptation to mountain ecosystems and also on contemporary threats and vulnerabilities caused by intensification in mining, agriculture, and tourism. The essays collected here discuss human responses to key physical and cultural stressors impacting human wellbeing in mountain ecosystems, such as aridity, quality of soils, steep slopes, industrialization and infrastructural change, low productivity, adverse effects of centralized political decision-making, deforestation and erosion, tourism, and the possible effects of climate change. The contributors who are cultural anthropologists, geographers, archaeologists, ecologists, and cultural resource managers and planners all point out that mountain populations cope with the stressors by adopting specific cultural strategies, such as seasonal migrations, integration of pastoral and agricultural production, animal crossbreeding, use of crop varieties, a mixture of communal and household control of land, trade, crop diversity, diversification of activities, and technological innovations and innovative scheduling of productive activities. Continuity and Change in Cultural Mountain Adaptations: From Prehistory to Contemporary Threats will be of interest to archaeologists, cultural resource managers, anthropologists, ecologists, climatologists, and geologists because mountainous ecosystems change fast, and cultures disappear and they need to be recorded. Most importantly, cultural responses of mountain populations provide clues for us all in this time of environmental change