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Kondolf,12 P. S. Lake,4 R. Lave,12 J. L. Meyer,13 T. K. O’Donnell,9 L. Pagano,12 B. Powell,14 E. Sudduth13 he importance of rivers and streams for fresh water, food, and recreation is well known, yet there is increasing evidence that degradation of running waters is at an alltime high (1). More than one-third of the rivers in the United States are listed as impaired or polluted (2), and freshwater withdrawals in some regions are so extreme that some major rivers no longer flow to the sea year round (3).

M. Vitousek, Ecology 65, 285 (1984). 12. P. J. Edwards, P. J. Grubb, J. Ecol. 65, 943 (1977). 13. E. V. J. Tanner, J. Ecol. 65, 883 (1977). 14. E. V. J. Tanner, J. Ecol. 68, 573 (1980). 15. P. J. Edwards, J. Ecol. 70, 807 (1982). 1109537 29 APRIL 2005 633b TECHNICAL COMMENT Response to Comment on ‘‘Ecosystem Properties and Forest Decline in Contrasting Long-Term Chronosequences’’ Kitayama (1) correctly recognizes that the six forested chronosequences we studied (2) do not include any of the hyperdiverse forests commonly found in the tropics.

Peltzer, R. B. Allen, M. S. McGlone, R. L. Parfitt, Oecologia 139, 267 (2004). 13. D. A. Wardle, G. Ho¨rnberg, O. Zackrisson, M. KalelaBrundin, D. Coomes, Science 300, 972 (2003). 14. A. F. Mark, C. Grealish, C. M. Ward, J. B. Wilson, J. R. Soc. Z. 18, 29 (1983). 15. We thank R. Allen, P. Bellingham, and D. Peltzer for helpful discussions during the preparation of this response. 1126/science/1109723 29 APRIL 2005 633c H I G H E R E D U C AT I O N Ideals Drowned in the Marketplace Harold T. Shapiro ennifer Washburn has written a very engaging and useful book.

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