TY - CHAP T1 - Measuring decomposition, nutrient turnover and stores in plant litter T2 - Standard Soil Methods for Long Term Ecological Research Y1 - 1999 A1 - Harmon, M.E. A1 - Naddlehoffer, K.J. A1 - John M. Blair ED - Robertson, G.P. ED - Bledsoe, C.S. ED - Coleman, D.C. ED - Sollins, P.S. JF - Standard Soil Methods for Long Term Ecological Research PB - Oxford University Press CY - New York ER - TY - CHAP T1 - Soil Carbon and nitrogen availability: Nitrogen mineralization, nitrification, soil respiration potentials T2 - Standard Soil Methods for Long Term Ecological Research Y1 - 1999 A1 - Robertson, G.P. A1 - Wedin, D. A1 - Groffman, P.M. A1 - John M. Blair A1 - Holland, E. A1 - Nadelhoffer, K.J. A1 - Harris, D. ED - Robertson, G.P. ED - Bledsoe, C.S. ED - Coleman, D.C. ED - Sollins, P.S. JF - Standard Soil Methods for Long Term Ecological Research PB - Oxford University Press CY - New York ER - TY - CHAP T1 - Soil invertebrates T2 - Standard Soil Methods for Long Term Ecological Research Y1 - 1999 A1 - Coleman, D.C. A1 - John M. Blair A1 - Elliott, E.T. A1 - Wall, D.H. ED - Robertson, G.P. ED - Bledsoe, C.S. ED - Coleman, D.C. ED - Sollins, P.S. JF - Standard Soil Methods for Long Term Ecological Research PB - Oxford University Press CY - New York ER - TY - CHAP T1 - Comparison of spatial and temporal variability of ecological parameters from 12 North American ecosystems T2 - Evaluating And Monitoring The Health Of Large-Scale Ecosystems, NATO ASI series, Vol I 28 Y1 - 1995 A1 - Kratz, T.K. A1 - Magnuson, J.J. A1 - Bayley, P. A1 - Benson, B.J. A1 - Berish, C.W. A1 - Bledsoe, C.S. A1 - Blood, E.R. A1 - Bowser, C.J. A1 - Carpenter, S.R. A1 - Cunningham, G.L. A1 - Dahlgren, R. A1 - Frost, T.M. A1 - Halfpenny, J.C. A1 - Hansen, J. A1 - Heisey, D. A1 - Inouye, R.S. A1 - D.W. Kaufman A1 - McKee, A. A1 - Yarie, J.A. ED - Rapport, D.J. ED - Gaudet, C.L. ED - Calow, P. JF - Evaluating And Monitoring The Health Of Large-Scale Ecosystems, NATO ASI series, Vol I 28 PB - Springer-Verlag CY - Berlin ER - TY - JOUR T1 - Contributions of the long-term ecological research program JF - BioScience Y1 - 1990 A1 - Franklin, J.F. A1 - Bledsoe, C.S. A1 - Callahan, J.T. AB -
The importance of long-term phenomena in ecology is well documented. Transient responses that extend over decades, or even centuries, are common, such as the gradual changes associated with community succession, soil development, and population of large vertebrates. Other ecological phenomena are infrequent (rare or episodic) events, including such disturbances as floods, hurricanes, wildfires, or volcanic eruptions, and the reproduction of long-lived plant species. Long-term studies are essential to understand such phenomena, as well as for the formation and testing of ecological theory. Research with an extended time perspective is crucial if one accepts the premise that long-term phenomena have a central role in ecological science. Such studies are uncommon despite this obvious need and repeated evidence of the misleading nature of short-term research. Factors contributing to the rarity of long-term studies include difficulties in obtaining sustained financial support and in providing continuing leadership. The National Science Foundation (NSF), responding to this need for support of long-term studies in ecology, initiated a program in Long-Term Ecological Research (LTER) in 1980. This initiative followed an extended planning period involving ecological scientists of varied interests. The LTER now has 17 sites with more than 400 associated scientific personnel
VL - 40 ER -