Barnosky A.D; E.A. Hadly; J. Bascompte; E.L. Berlow; J.H. Brown; M. Fortelius; W.M. Getz; J. Harte; A. Hastings; P.A. Marquet; N.D. Martinez; A. Mooers; P. Roopnarine; G. Vermeij; J.W. Williams; R. Gillespie; J. Kitzes; Ch. Marshall; N. Matzke; D. P. Mindell; E. Revilla; and A.B. Smith.