Works Cited

References:

1. Geoffrey Hammerson, Georgina Santos-Barrera 2004. Anaxyrus californicus. In: IUCN 2012. IUCN Red List of Threatened Species. Version 2012.2. <www.iucnredlist.org>. Downloaded on 25 February 2013.
2. U.S. Fish and Wildlife Service. 2001. Final designation of critical habitat for the arroyo toad. Federal Register (12 February 2001): 9414-9474.
3. U.S. Fish and Wildlife Service. 2009. Arroyo Toad (Bufo californicus (=microscaphus)) 5-Year Review: Summary and Evaluation. Ventura, California.
4. U.S. Fish and Wildlife Service. 2012. 90-day Finding on a Petition to Delist or Reclassify From Endangered to Threatened Six California Species. Federal Register (4 June 2012): 92220-1113.
5. U.S. Fish and Wildlife Service. 2013. Arroyo Toad (Anaxyrus californicus) species profile. <ecos.fws.gov>. Downloaded on 26 February 2013. 

    

   Primary sources:

    

6. Chavez, Andreas. Personal communication February 26 2013. 
7. Groom, Martha J., C. Ronald Carroll, and Gary K. Meffe. "Chapter 14." Principles of Conservation Biology. Third ed. Sunderland [Mass.: Sinauer Associates, 2006. 520-522. Print.
8. Paul C. Griffin, Ted J. Case. Terrestrial Habitat Preferences of Adult Arroyo Southwestern Toads. The Journal of Wildlife Management , Vol. 65, No. 4 (Oct., 2001), pp. 633-64. <www.jstor.org>. Downloaded on 3 March 2013. 
9. "Saving the Arroyo Toad." Arroyo Toad. Center for Biological Diversity, n.d. Web. <http://www.biologicaldiversity.org>. Downloaded on 5 March 2013 
10.  David B. Wake, Vance T. Vrendenburg. "Are we in the midst of the sixth mass extinction? A view from the world of amphibians." PNAS, Vol. 105, suppl. 1 (Aug., 2008), pp.11466-11473.

     

    Also referenced:

11. U.S. Fish and Wildlife Service, Region 3. Revised March 2003. What Is the Difference Between Endangered and Threatened?.<http://www.fws.gov>. Downloaded on 5 March 2013.