نتایج جستجو برای: ecosystem

تعداد نتایج: 83322  

2005
D. Kirby V. Allain David S. Kirby Valerie Allain Brett Molony

1) Ecosystem indicators are a way of reducing ecosystem complexity into a form that is most informative and useful to management. As a means of turning data into information, indicators are ultimately a communication tool facilitating science-based governance, i.e. the sustainable use of WCPO tuna resources and the conservation of associated species. 2) One framework suggested for the developme...

2017
Ruifang Hao Deyong Yu Jianguo Wu

Understanding the relationships between ecosystem services is important for promoting ecosystem service management and sustainable development. The relationships between ecosystem services have commonly been characterized as tradeoffs and synergies. Here, we report that a third type of relationship also exists, in which one ecosystem service constrains the other. Selecting the grassland and agr...

2010
Stephen K. Swallow Elizabeth C. Smith Emi Uchida Christopher M. Anderson

Ecosystem services have been identified as a central link between society, or human systems, and the structure and function of natural systems (e.g., U.S. LTER 2007, MEA 2005). A fundamental economic problem is that while almost everyone—environmental groups, policy makers, and broad segments of the general public—seems to believe ecosystem services are valuable, the available public policy too...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2007
Sandra Díaz Sandra Lavorel Francesco de Bello Fabien Quétier Karl Grigulis T Matthew Robson

Global environmental change affects the sustained provision of a wide set of ecosystem services. Although the delivery of ecosystem services is strongly affected by abiotic drivers and direct land use effects, it is also modulated by the functional diversity of biological communities (the value, range, and relative abundance of functional traits in a given ecosystem). The focus of this article ...

2015
SungYong Um Youngjin Yoo Sunil Wattal Rob J. Kulathinal Bin Zhang

Contemporary digital ecosystems are characterized by their generativity, where third-party developers primarily drive innovations. However, the underlying generative architecture of a digital ecosystem is not well known. In this study, we draw on a network biology approach to explore the architectural pattern of how individual software modules in a digital ecosystem interact with one another to...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2007
Hywel T P Williams Timothy M Lenton

Recent work with microbial communities has demonstrated an adaptive response to artificial selection at the level of the ecosystem. The reasons for this response and the level at which adaptation occurs are unclear: does selection act implicitly on traits of individual species, or are higher-level traits genuinely being selected? If the ecosystem response is just the additive combination of the...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2015
Belinda Reyers Jeanne L Nel Patrick J O'Farrell Nadia Sitas Deon C Nel

Achieving the policy and practice shifts needed to secure ecosystem services is hampered by the inherent complexities of ecosystem services and their management. Methods for the participatory production and exchange of knowledge offer an avenue to navigate this complexity together with the beneficiaries and managers of ecosystem services. We develop and apply a knowledge coproduction approach b...

2015
Konstantinos Manikas Slinger Jansen Yvonne Dittrich

As in many western countries, Denmark’s demographic changes and the organizational and financial changes of the Danish healthcare are challenging the levels of provided healthcare and point towards the establishment of telemedicine as means of patient support, diagnosis, and treatment. However, telemedical solutions, despite the benefits they provide, are faced with a number of challenges that ...

2006
Colin D. Butler

Ecosystem services are necessary, yet not sufficient for human well-being (however defined). Insufficient access to the ecosystem provisioning service of food is a particularly important factor in the loss of human well-being, but all ecosystem services contribute in some way to well-being. Although perhaps long obvious to ecologists, the links between ecosystems and aspects of human well-being...

Journal: :Ecological applications : a publication of the Ecological Society of America 2012
Fran Sheldon Erin E Peterson Ed L Boone Suzanne Sippel Stuart E Bunn Bronwyn D Harch

Catchment and riparian degradation has resulted in declining ecosystem health of streams worldwide. With restoration a priority in many regions, there is an increasing interest in the scale at which land use influences stream ecosystem health. Our goal was to use a substantial data set collected as part of a monitoring program (the Southeast Queensland, Australia, Ecological Health Monitoring P...

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