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Quantitative models are crucial to almost every area of ecosystem science. They provide a logical structure that guides and informs empirical observations of ecosystem processes. They play a particularly crucial role in synthesizing and integrating our understanding of the immense diversity of ecosystem structure and function. Increasingly, models are being called on to predict the effects of human actions on natural ecosystems. Despite the widespread use of models, there exists intense debate within the field over a wide range of practical and philosophical issues pertaining to quantitative modeling. This book--which grew out of a gathering of leading experts at the ninth Cary Conference--explores those issues. The book opens with an overview of the status and role of modeling in ecosystem science, including perspectives on the long-running debate over the appropriate level of complexity in models. This is followed by eight chapters that address the critical issue of evaluating ecosystem models, including methods of addressing uncertainty. Next come several case studies of the role of models in environmental policy and management. A section on the future of modeling in ecosystem science focuses on increasing the use of modeling in undergraduate education and the modeling skills of professionals within the field. The benefits and limitations of predictive (versus observational) models are also considered in detail. Written by stellar contributors, this book grants access to the state of the art and science of ecosystem modeling

The evidence-based science advice (ESA) effort of the Cameroon Academy of Sciences (CAS) since 23 years has been reviewed. The objective throughout has been to enable science influence policy/decision making at all levels – national, regional and global. The key partners of CAS included the United States National Academy of Sciences (USNAS), the German Academy of Sciences (Leopoldina), the Royal Society of United Kingdom, as well as the Network of African Science Academies (NASAC), the InterAcademy Partnership (Science, Health, Research), the Commonwealth Science Academies and the International Science Council. The mechanisms used included consensus studies, workshops, public lectures, participation in sectoral committees, summaries of key scientific publications and joint statements. Priorities handled through convening activities were triggered by policy/decision making sector requests or Academy foresights. The response/impact of the effort varied from media coverage through policy/programme change/orientation. The major challenges faced included insufficient financial/human resources, inadequate office space, and weak links with government. These challenges must be addressed to enable effective evidence-based science advice which is increasingly unavoidable for sustainable development.Keywords: Evidence-based science, advice, policy, decision-maker

"Together with sketches of its cities, villages and townships, educational, religious, civil, military, and political history; portraits of prominent persons, and biographies of representative citizens." ; Mode of access: Internet.

Part 1: Politics, History and the Data of Politics Introductory 1. What History Is 2. The Methods of the Historians 3. The Uses of History Part 2: The Method of Politics 1. The Possibility of a Political Science 2. The Place of Politics Among the Social Sciences 3. The Process of Politics Part 3: Politics and Ethics Politics and Ethics. Index.

Comment se comportent les frontières de la science politique dans le domaine de l'environnement, des politiques publiques environnementales, et plus spécialement de la "political ecology" ?Celle-ci et la recherche y relative ont-elles réussi à mobiliser, intégrer ou même renforcer la dimension politique au sein de l'interdisciplinarité de ce cadre conceptuel? Quelles sont les limites, les frontières de notre science politique face à cette étude des différentes réalités et perceptions de phénomènes écologiques et sociaux en interaction ?Le but du présent article est d'examiner l'implication de la science politique en son pan d'étude de la dimension discursive du pouvoir, via l'analyse du discours, dans les interactions sociétés-environnement couvertes par la "political ecology". Pour cela, nous partons de deux ouvrages sur l'analyse du discours (en sciences sociales, et en environnement) publiés en 2005 et 2006, et de deux manuels de "political ecology" publiés en 2015. Ce article été produit par l'auteur dans le cadre d'un séminaire doctoral de théorie, méthodologie et recherche en science politique. ; info:eu-repo/semantics/nonPublished