Krebs, Charles J. Ecology : the experimental analysis of distribution and abundance / Charles J. Krebs - 6th ed. - San Francisco : Pearson Benjamin Cummings, 2009 - xvi, 655 p. : ill. (some col.) ; 28 cm. Includes bibliographical references and index ISBN: 9780321507433 RM489.96 Subjects--Topical Terms: EcologyPopulation biologyBiogeography