R. (1998) Population, commu- nity, and ecosystem variates as ecological indicators: phytoplankton responses to whole-lake enrichment. Ecol. Appl., 8, 508-530.Cottingham K.L. & Carpenter S.R. ( 1998 ) Population, community, and ecosystem variates as ecological indicator...
We quantified the reliability of phytoplankton population, community, and ecosystem variates as indicators of whole-lake enrichment. Variates with high sensitivity to perturbation and low background variability were assumed to be more reliable indicators than variates with low sensitivity or high variability...
Economic development and population growth along the U.S.-Mexico border have been determined by the natural resources available for the physical and social... GG Núñezmchiri - 《Southern Rural Sociology Srs》 被引量: 19发表: 2009年 Ecosystem Ecology: Linking population, community and ecosystem...
Succession Ecological succession- transition in species composition over ecological time Primary begun in lifeless area; no soil, perhaps volcanic activity or retreating glacier Secondary an existing community has been cleared by some disturbance that leaves the soil intact...
Describe the plant life, animal life, and geology of the ecosystem in the area in which you live. What populations and communities are present? How dependent is your community on this ecosystem? What are the limiting factors of the ecosystem...
The loss of species from a system will lead to changes in ecosystem structure, energetics and processes. Consequently, the changes in abundance and in part... DJ Spurgeon,RD Sandifer,SP Hopkin,... - The use of macro-invertebrates for population and community monitoring of metal contamination -...
The Biology of Soil: A Community and Ecosystem Approach This book is an up-to-date, comprehensive overview of the causes and consequences of biodiversity in soil, providing an accessible and authoritative summary of the field of soil ecology. It provides unique combination of information on t.....
All organisms alter their abiotic environment, but ecosystem engineers are species with abiotic effects that may have to be explicitly accounted for when making predictions about population and community dynamics. The goal of this analysis is to identify those conditions in which engineering leads to ...
Principal component ordination was a more sensitive metric of community-level effects than was taxon richness. Communities in the highest treatment concentration had not fully recovered by the last sampling date, 78 d after treatment. 展开 关键词: Azinphos methyl Biological indicator Freshwater pollution...
and thermodynamic constraints, (2) CUE C defines community-scale microbial efficiency as gross biomass production per unit substrate taken up over short time scales, largely excluding recycling of microbial necromass and exudates, and (3) CUE E reflects the ecosystem-scale efficiency of net microbial...