By Welch, E
By Thomson, Ruth, Levy
By Townsend, John
By Mottershead, Rona
By Richard Lee Lyman, Mary Larson
By Sandy Sheehy (author)
By Jepson, Paul, Blythe, Cain
By Green, Jen
By Robinson, J. Lewis
By Millennium Ecosystem Assessment
By Engen, Steinar
By Armstrong, Patrick H.
By Leonard, M.G., Perel, Esther
By DK
By Jordan, Carl F.
By Olff, H., Drent, R. H., Brown, V. K.
By Martin Jackson
By Marjorie Guthrie
By Dudgeon, David
By Townsend, Colin R, Harper, John L., Begon, Michael, John L, Micheal
By Williamson, Tom, Reijntjes, Marc, Stevens, Rudy, Sengall, Françoise
By Krebs, J. R.
By Helmut van Emden
By Krause, Jens, Ruxton, Graeme D.
By Sutcliffe, David W.