نتایج جستجو برای: ecosystem function

تعداد نتایج: 1288323  

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2017
Elisabeth J Forrestel Michael J Donoghue Erika J Edwards Walter Jetz Justin C O du Toit Melinda D Smith

Plant functional traits are viewed as key to predicting important ecosystem and community properties across resource gradients within and among biogeographic regions. Vegetation dynamics and ecosystem processes, such as aboveground net primary productivity (ANPP), are increasingly being modeled as a function of the quantitative traits of species, which are used as proxies for photosynthetic rat...

2002
Steven T. Overby Stephen C. Hart Daniel G. Neary

INTRODUCTION Forest soils are entities within themselves, selforganized and highly resilient over time. The transfer of energy bound in carbon (C) molecules drives the organization and functions of this biological system (Fisher and Binkley, 2000; Paul and Clark, 1996). Photosynthetic organisms reduce atmospheric C and store energy from solar radiation in the formation of complex C molecules. T...

Journal: :basic and clinical neuroscience 0
h farrokhi cognitive sciences & technologies council (cstc) of iran. i ghodratitoostani fanavaran gostaresh salamat cooperative (fgsco) of iran. m farasatkhah cognitive sciences & technologies council (cstc) of iran. h ekhtiari ognitive sciences & technologies council (cstc) of iran

0

1998
Franco Bagnoli Michele Bezzi

In this paper we consider a microscopic model of a simple ecosystem. The basic ingredients of this model are individuals, and both the phenotypic and genotypic levels are taken in account. The model is based on a long range cellular automaton (CA); introducing simple interactions between the individuals, we get some of the complex collective behaviors observed in a real ecosystem. Since our fit...

2011
Michael D. McGinnis Elinor Ostrom

This paper updates a general framework for the study of social-ecological systems that was initially proposed in “A Diagnostic Approach for Going Beyond Panaceas” (Ostrom 2007). This SES framework has inspired much of the specific research reported on elsewhere in this special issue. The initial changes introduced in this paper have emerged from continuing interactions among a growing network o...

2004
Michael L. Pace Yves T. Prairie

This chapter reviews, from a quantitative perspective, estimates and models of planktonic and benthic respiration in lakes, as derived from bottle and core incubations. Using data gleaned from the literature, empiricalmodels of planktonic andbenthic respiration are presented inwhich respiration is shown todepend primarily on lake trophic conditions and, secondarily, on temperature and other fac...

2010
Giuseppina Siciliano

This paper links development-induced urbanization strategies to changes in land use and associated impacts on rural communities and agro-ecosystems in a selected rural area of China. Energy, monetary and human time variables as well as information on environmental pressures, have been combined to obtain indicators that are useful to compare the metabolism of different patterns of land use from ...

2003
JAMES E. BYERS ERIK G. NOONBURG

As nonindigenous species continue to displace native species and disrupt ecosystems, understanding the degree to which native species richness affects the vulnerability of communities to nonindigenous species invasions has grown in importance. Native and exotic species diversity are often positively correlated in large-scale observational studies, but negatively correlated in small-scale experi...

2017
Sophia Barinova

Previously we are discussing the main systems of the water quality classification [1] that based on the Ecosystem model of [2]. The major point of this approach is the amplitude of the water variables that covered of all possible parameters for surface and technical waters, as well as the amplitude of variables in which the aquatic ecosystem can survive. Considering that water quality assessmen...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید