نتایج جستجو برای: ecosystem function

تعداد نتایج: 1288323  

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...

2014
Michael C. Dietze Shawn P. Serbin Carl Davidson Ankur R. Desai Xiaohui Feng Ryan Kelly Rob Kooper David LeBauer Joshua Mantooth Kenton McHenry Dan Wang

Terrestrial biosphere models are designed to synthesize our current understanding of how ecosystems function, test competing hypotheses of ecosystem function against observations, and predict responses to novel conditions such as those expected under climate change. Reducing uncertainties in such models can improve both basic scientific understanding and our predictive capacity, but rarely are ...

2012
Inés Ibáñez Elise S Gornish Lauren Buckley Diane M Debinski Jessica Hellmann Brian Helmuth Janneke HilleRisLambers Andrew M Latimer Abraham J Miller-Rushing Maria Uriarte

Natural resources managers are being asked to follow practices that accommodate for the impact of climate change on the ecosystems they manage, while global-ecosystems modelers aim to forecast future responses under different climate scenarios. However, the lack of scientific knowledge about short-term ecosystem responses to climate change has made it difficult to define set conservation practi...

Journal: :Ecology letters 2006
Justin P Wright Shahid Naeem Andy Hector Clarence Lehman Peter B Reich Bernhard Schmid David Tilman

Studies linking the functional diversity of a biota to ecosystem functioning typically employ a priori classifications of species into hypothetically complementary groups. However, multiple alternate classifications exist in which the number of functional groups, the number of species per functional group, and the grouping of species differ from the a priori scheme. Without assessing the relati...

2009
Slinger Jansen Sjaak Brinkkemper Anthony Finkelstein

Software vendors and software service providers can no longer function without taking their software ecosystem into account. Software vendors presently face three challenges in regards to software ecosystems: (1) they require insight into software ecosystems, (2) they require insight into the possible survival strategies that exist for software ecosystem participants, and (3) they require an ov...

Journal: :Science 2006
Brad W Taylor Alexander S Flecker Robert O Hall

Harvesting threatens many vertebrate species, yet few whole-system manipulations have been conducted to predict the consequences of vertebrate losses on ecosystem function. Here, we show that a harvested migratory detrital-feeding fish (Prochilodontidae: Prochilodus mariae) modulates carbon flow and ecosystem metabolism. Natural declines in and experimental removal of Prochilodus decreased down...

2015
Wei Song Xiangzheng Deng Enrico Sciubba

Since the implementation of market oriented economic reform in 1978, China has been on the track of rapid urbanization. The unprecedented urbanization in China has resulted in substantial cultivated land loss and rapid expansion of urban areas. The cultivated land loss due to urbanization not only threatens food security in China, but has also led to ecological system degradation to which close...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2014
Markus Reichstein Michael Bahn Miguel D Mahecha Jens Kattge Dennis D Baldocchi

Classical biogeographical observations suggest that ecosystems are strongly shaped by climatic constraints in terms of their structure and function. On the other hand, vegetation function feeds back on the climate system via biosphere-atmosphere exchange of matter and energy. Ecosystem-level observations of this exchange reveal very large functional biogeographical variation of climate-relevant...

Journal: :Ecology letters 2005
Trond H Larsen Neal M Williams Claire Kremen

By causing extinctions and altering community structure, anthropogenic disturbances can disrupt processes that maintain ecosystem integrity. However, the relationship between community structure and ecosystem functioning in natural systems is poorly understood. Here we show that habitat loss appeared to disrupt ecosystem functioning by affecting extinction order, species richness and abundance....

Journal: :Biological reviews of the Cambridge Philosophical Society 2017
Jennifer L Funk Julie E Larson Gregory M Ames Bradley J Butterfield Jeannine Cavender-Bares Jennifer Firn Daniel C Laughlin Ariana E Sutton-Grier Laura Williams Justin Wright

One of ecology's grand challenges is developing general rules to explain and predict highly complex systems. Understanding and predicting ecological processes from species' traits has been considered a 'Holy Grail' in ecology. Plant functional traits are increasingly being used to develop mechanistic models that can predict how ecological communities will respond to abiotic and biotic perturbat...

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