نتایج جستجو برای: community size

تعداد نتایج: 906527  

2010
Laurie E. Damianos Lester J. Holtzblatt

We look at self-forming communities on one company’s externally-facing business networking tool to better understand factors contributing to the success of a community. We propose that there is no single measure of success of a community; success of different kinds of communities depends on a variety of factors, including the perspective of the stakeholders and the type of community established...

Journal: :Global change biology 2017
Daniel Nelson Jonathan P Benstead Alexander D Huryn Wyatt F Cross James M Hood Philip W Johnson James R Junker Gísli M Gíslason Jón S Ólafsson

How ecological communities respond to predicted increases in temperature will determine the extent to which Earth's biodiversity and ecosystem functioning can be maintained into a warmer future. Warming is predicted to alter the structure of natural communities, but robust tests of such predictions require appropriate large-scale manipulations of intact, natural habitat that is open to dispersa...

2013
Jong-Shik Kim David E. Crowley

The microbial community structure in various microaggregates in a loamy sand soil was investigated. The microaggregates were separated into outer and inner aggregates using a series of soil washes. Further physical fractionation of inner aggregates was achieved by separation into coarse and fine sand as macroaggregate fractions, coarse and fine silt as microaggregate fractions, and clay. Resear...

2014
Taina Ala-Nikkola Sami Pirkola Raija Kontio Grigori Joffe Maiju Pankakoski Maili Malin Minna Sadeniemi Minna Kaila Kristian Wahlbeck

Governances, structures and contents of mental health services are being reformed across countries. There is a need for data to support those changes. The aim of this study was to explore the quality, i.e., diversity and community orientation, and quantity, i.e., personnel resources, of mental health and substance abuse services (MHS) and evaluate correlation between population needs and qualit...

Journal: :Philosophical transactions of the Royal Society of London. Series B, Biological sciences 2012
Gabriel Yvon-Durocher Andrew P Allen

Understanding how biogeochemical cycles relate to the structure of ecological communities is a central research question in ecology. Here we approach this problem by focusing on body size, which is an easily measured species trait that has a pervasive influence on multiple aspects of community structure and ecosystem functioning. We test the predictions of a model derived from metabolic theory ...

Journal: :Proceedings. Biological sciences 2010
John L Orrock James I Watling

The outcome of competitive interactions is likely to be influenced by both competitive dominance (i.e. niche-based dynamics) and ecological drift (i.e. neutral dynamics governed by demographic stochasticity). However, spatial models of competition rarely consider the joint operation of these two processes. We develop a model based on the original competition-colonization trade-off model that in...

Journal: :American Journal of Public Health and the Nations Health 1928

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