By Eric F. Lambin, Helmut J. Geist
By T. M. Smith (University of Virginia), H. H. Shugart (University of Virginia), F. I. Woodward (University of Sheffield)
By Peter D. Tyson, Roland Fuchs, Congbin Fu, Louis Lebel, Hermine Vloemans
By Josep G. Canadell, Diane E. Pataki, Louis F. Pitelka
By Brian H. Walker (Division of Wildlife and Ecology CSIRO, Australian Capital Territory), Will Steffen (Division of Wildlife and Ecology CSIRO
By Michael J. Wade
By Richard T. Holmes, Gene E. Likens
By Richard. S. K. Barnes, etc., P. Calow (Professor of Zoology, University of Sheffield), P.J.W. Olive (Senior Lecturer in Zoology), M. Dove
By Eugene Linden
By Marguerite S. Shaffer, Phoebe S. K. Young
By David Middleton
By Diane Ackerman
By Jonathan Crary
By Lodge, Thomas E.
By Chidumayo, Emmanuel
By Action contre la Faim
By Ricklefs, Robert E.
By Tony Sinclair, John Fryxell, Graeme Caughley
By Davies, Nicholas B., Krebs, John R.
By Drew, Patrick, Tutu, Archbishop Desmond
By Ellis, Derek
By Sutcliffe, David W., Jones, J.G.
By Joy Tivy
By Elizabeth Royte
By Alastair H. Fitter (University of York, U.K.), Robert K.M. Hay (Scottish Agricultural Science Agency, EDINBURGH, Scotland)
By Inland, David Pietro Serrano, Alejandro Alonso Diaz
By Peter Senge
By Siddarth Shrikanth
By Martin Walters, Bob Gibbons, Kenny Taylor, Michael Wood, Stella Tranah
By William Sweet (IEEE Spectrum magazine)