The US Long Term Ecological Research Program

Abstract The 24 projects of the National Science Foundation's Long Term Ecological Research Network, whose sites range from the poles to the Tropics, from rain forests to tundras and deserts, and from offshore marine to estuarine and freshwater habitats, address fundamental and applied ecological issues that can be understood only through a long-term approach. Each project addresses different ecological questions; even the scale of research differs across sites. Projects in the network are linked by the requirement for some research at each site on five core areas, including primary production, decomposition, and trophic dynamics, and by cross-site comparisons, which are aided by the universally available databases. Many species and environmental variables are studied, and a wide range of synthetic results have been generated.

[1]  P H Abelson,et al.  Acid rain. , 1983, Science.

[2]  J. T. Callahan.  Long-Term Ecological Research , 1984 .

[3]  J. Proctor.  Tropical rain forest , 1987 .

[4]  L. Taylor.  Objective and Experiment in Long-Term Research , 1989 .

[5]  Jerry F. Franklin,et al.  Importance and Justification of Long-Term Studies in Ecology , 1989 .

[6]  E. Holland,et al.  Plant Response to Herbivory and Belowground Nitrogen Cycling , 1990 .

[7]  J. Magnuson.  Long-Term Ecological Research and the Invisible Present , 1990 .

[8]  Jerry F. Franklin,et al.  Contributions of the Long-Term Ecological Research Program , 1990 .

[9]  G. Likens,et al.  Long-Term Studies in Ecology: Approaches and Alternatives , 1990 .

[10]  T. Kratz,et al.  The Influence of Landscape Position on Temporal Variability in Four North American Ecosystems , 1991, The American Naturalist.

[11]  O. Sala,et al.  Long-Term Forage Production of North American Shortgrass Steppe. , 1992, Ecological applications : a publication of the Ecological Society of America.

[12]  P. Risser,et al.  Long-term ecological research : an international perspective , 1992 .

[13]  J. Finlay,et al.  Long-term effects of PO4 fertilization on the distribution of bryophytes in an arctic river , 1994 .

[14]  J. Magnuson,et al.  Temporal and Spatial Variability as Neglected Ecosystem Properties: Lessons Learned From 12 North American Ecosystems , 1995 .

[15]  Peter Calow,et al.  Evaluating and monitoring the health of large-scale ecosystems. , 1995 .

[16]  Gene E. Likens,et al.  Biogeochemistry of a Forested Ecosystem , 1996, Springer New York.

[17]  Stephen R. Carpenter,et al.  Water clarity in Lake Mendota since 1900 : responses to differing levels of nutrients and herbivory , 1996 .

[18]  James Woodward,et al.  Biological invasions as global environmental change , 1996 .

[19]  B. Månsson.  Evaluating and Monitoring the Health of Large Scale Ecosystems , 1996 .

[20]  Outlook for Plant Invasions: Interactions with Other Agents of Global Change , 1997 .

[21]  Craig A. Stow,et al.  Phosphorus loading reductions needed to control blue green algal blooms in Lake Mendota , 1998 .

[22]  D. Wilcove,et al.  QUANTIFYING THREATS TO IMPERILED SPECIES IN THE UNITED STATES , 1998 .

[23]  J. Bergelson,et al.  Habitats of native and exotic plants in Colorado shortgrass steppe: a comparative approach , 1998 .

[24]  K. Gage,et al.  Incidence of plague associated with increased winter-spring precipitation in New Mexico. , 1999, The American journal of tropical medicine and hygiene.

[25]  M. Willig,et al.  The Relationship Between Productivity and Species Richness , 1999 .

[26]  Stephen R. Carpenter,et al.  Management of eutrophication for lakes subject to potentially irreversible change , 1999 .

[27]  G. Robertson,et al.  Measuring decomposition, nutrient turnover, and stores in plant litter. , 1999 .

[28]  D. Moorhead,et al.  Climate and litter quality controls on decomposition: An analysis of modeling approaches , 1999 .

[29]  Stephen R. Carpenter,et al.  Summer water clarity responses to phosphorus, Daphnia grazing, and internal mixing in Lake Mendota , 1999 .

[30]  J. Luoma.  The Hidden Forest: The Biography of an Ecosystem , 1999 .

[31]  G. Robertson,et al.  Standard soil methods for long-term ecological research , 1999 .

[32]  A. Knapp,et al.  Exotic plant species in a C4-dominated grassland: invasibility, disturbance, and community structure , 1999, Oecologia.

[33]  F. Chapin,et al.  Global Warming and Terrestrial Ecosystems: A Conceptual Framework for Analysis , 2000 .

[34]  N. Grimm,et al.  Integrated Approaches to Long-TermStudies of Urban Ecological Systems , 2000 .

[35]  W. Parton,et al.  Long‐term dynamics of pine and hardwood litter in contrasting environments: toward a global model of decomposition , 2000 .

[36]  E. David Ford,et al.  Scientific Method for Ecological Research , 2000 .

[37]  M. Willig,et al.  Patterns of species density and productivity at different spatial scales in herbaceous plant communities , 2000 .

[38]  N. Grimm,et al.  Integrated Approaches to Long-TermStudies of Urban Ecological Systems , 2000 .

[39]  W. Oechel,et al.  Observational Evidence of Recent Change in the Northern High-Latitude Environment , 2000 .

[40]  S. Carpenter,et al.  Hares and Tortoises: Interactions of Fast and Slow Variablesin Ecosystems , 2000, Ecosystems.

[41]  J. Magnuson,et al.  Historical trends in lake and river ice cover in the northern hemisphere , 2000, Science.

[42]  K. L. Cottingham,et al.  THE RELATIONSHIP IN LAKE COMMUNITIES BETWEEN PRIMARY PRODUCTIVITY AND SPECIES RICHNESS , 2000 .

[43]  T. Seastedt,et al.  Centaurea Species: the Forb That Won the West , 2001 .

[44]  S. Hamilton,et al.  Control of Nitrogen Export from Watersheds by Headwater Streams , 2001, Science.

[45]  J. Stoddard,et al.  Acidic Deposition in the Northeastern United States: Sources and Inputs, Ecosystem Effects, and Management Strategies , 2001 .

[46]  A. Knapp,et al.  Size of the local species pool determines invasibility of a C4‐dominated grassland , 2001 .

[47]  N. Caine.  Declining Ice Thickness on an Alpine Lake is Generated by Increased Winter Precipitation , 2002 .

[48]  D. Tilman,et al.  The Importance of Land-Use Legacies to Ecology and Conservation , 2003 .

[49]  J. Magnuson,et al.  Disturbance Dynamics and Ecological Response: The Contribution of Long-Term Ecological Research , 2003 .

[50]  E. Rastetter,et al.  Using Mechanistic Models to Scale Ecological Processes across Space and Time , 2003 .

[51]  M. Harmon,et al.  Ecological Variability in Space and Time: Insights Gained from the US LTER Program , 2003 .

[52]  J. Magnuson,et al.  Long-Term Research on Biosphere–Atmosphere Interactions , 2003 .

[53]  DEBRA P. C. PETERS,et al.  Long-Term and Large-Scale Perspectives on the Relationship between Biodiversity and Ecosystem Functioning , 2003 .

[54]  R. Fisher.  Statistical methods for research workers , 1927, Protoplasma.