An Experiment in Managing the Human Animal: The PHVA Process and Its Role in Conservation Decision-Making

  • Philip S. Miller
  • Frances R. Westley
  • Ann P. Byers
  • Robert C. Lacy
Part of the Developments in Primatology: Progress and Prospects book series (DIPR)


An alarming proportion of the world's catalog of biological diversity appears to be in decline (Wilson, 1992; Purvis and Hector, 2000), and the steady losses of species may have serious or even catastrophic impacts on the stability and functioning of ecosystems (Tilman and Downing, 1994; McGrady-Steed et al., 1997; Naeem and Li, 1997; McCann, 2000). Consequently, many of the services and benefits that humans derive from the natural world may be dangerously diminished (Chapin et al., 2000; Tilman, 2000). The primary causes of the decline of nearly all endangered species can be directly related to the activities of human populations, both urban and rural (Caughley, 1994): wildlife populations are over-harvested; landscapes are polluted with the infusion of toxins into the air, water, and soil through industrial activity; exotic competitors, predators, parasites, and diseases are introduced into naïve communities that lack the proper defenses to combat these new invaders;...


Network Member Extinction Risk Workshop Participant Workshop Process Mountain Gorilla 
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Copyright information

© Springer Science+Business Media, LLC 2008

Authors and Affiliations

  • Philip S. Miller
    • 1
  • Frances R. Westley
    • 2
  • Ann P. Byers
    • 1
  • Robert C. Lacy
    • 1
    • 3
  1. 1.Conservation Breeding Specialist Group (SSC/IUCN)MinneapolisUSA
  2. 2.Gaylord Nelson Institute for Environmental StudiesUniversity of WisconsinMadisonUSA
  3. 3.Chicago Zoological SocietyBrookfieldUSA

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