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Likens, G. E. ;Hedin, L. O. ;Butler, T. J. 1990. “Some long-term precipitation chemistry patterns at the Hubbard Brook Experimental Forest: extremes and averages” 24 (1): 128-135.
Likens, G. E. ;Bormann, F. H. ;Hedin, L. O. ;Driscoll, C. T. ;Eaton, J. S. 1990. “Dry deposition of sulfur: a 23-year record for the Hubbard Brook Forest Ecosystem” 42B: 319-329.
Likens, G. E. 1990. “Long-term consequences of human effects on ecosystems” : 17.
Likens, G. E. 1990. “Sustained ecological research and formulation of public policy” : 16.
Likens, G. E. 1990. “Use, abuse and limits of the ecosystem concept”
Likens, G. E. ;Bormann, F. H. ;Hedin, L. O. ;Driscoll, C. T. ;Eaton, J. S. 1990. “Dry deposition of sulfur: A 23-yr record for the Hubbard Brook Forest Ecosystem” 71 (2): 231.
Lovett, G. M. ;Kinsman, J. D. 1990. “Atmospheric pollutant deposition to high-elevation ecosystems” 24A: 2767-2786.
Martin, C. W. ;Hornbeck, J. W. 1990. “Regeneration after strip cutting and block clearcutting in northern hardwoods” 7 (2): 65-88.
Martin, C. W. 1990. “Chemistry of precipitation falling on New Hampshire forests, 1979-88”
Mattson, M. D. ;Likens, G. E. 1990. “Air pressure and methane fluxes” 347 (6295): 718-719.
Pardo, L. H. ;Driscoll, C. T. ;Siccama, T. G. ;Zhang, Y. 1990. “Trends in wood tissue nitrogen concentration in a northern hardwood ecosystem” 71 (2): 277-278.
Pierce, R. S. ;Bormann, F. H. ;Likens, G. E.  Guertin, D. P. 1990. “The ecosystem approach to forest hydrological research” : 92-98.
Reitsma, L. R. ;Holmes, R. T. ;Sherry, T. W. 1990. “Effects of removal of red squirrels, Tamiasciurus hudsonicus, and eastern chipmunks, Tamias striatus nest predation in a northern hardwood forest: an experiment with artificial nests” 57 (3): 375-380.
Reitsma, L. 1990. “Importance of nest predation to avian population regulation and community structure in a northern hardwoods forest” : 104.
Sherry, T. W. 1990. “Review of 'Where Have All the Birds Gone?' by John Terborgh. Princeton University Press” 71: 1224-1225.
Sherry, T. W.  Jehl, J. R. 1990. “When are birds dietarily specialized? Distinguishing ecological from evolutionary approaches” : 337-352.
Sherry, T. W. ;Holmes, R. T. 1990. “Population dynamics of a long-distance migrant songbird: variability in time and space” : 295.
Smith, R. B. ;Hornbeck, J. W. ;Federer, C. A. ;Krusic, P. J., Jr. 1990. “Regionally-averaged diameter growth in New England forests” : 26.
Hedin, L. O. ;Likens, G. E. ;Postek, K. M. ;Driscoll, C. T. 1990. “A field experiment to test whether organic acids buffer acid deposition” 345: 798-800.
Hedin, L. O. ;Granat, L. ;Likens, G. E. ;Rodhe, H. 1990. “Strong similarities in seasonal concentration ratios of SO42- , NO3- and NH4+ in precipitation between Sweden and the northeastern US” 42B: 454-462.