Possible contemporary evolution in an endangered species, the Santa Cruz Island fox

Animal Conservation

Volumn 12, Issue 2, 2009, Pages 120-127

  Swarts, Hilary M ^a   Crooks, K R ^b   Willits, N ^a   Woodroffe, R ^a,c  

^a UNIVERSITY OF CALIFORNIA   (United States)

^b Veterinary Dentistry and Oral Surgery   (United States)

^c INSTITUTE OF ZOOLOGY   (United Kingdom)

Author keywords

Activity; Anti predator behaviour; Aquila chrysaetos; Channel Islands; Contemporary evolution; Urocyon littoralis

Indexed keywords

ANTIPREDATOR DEFENSE; BEHAVIORAL RESPONSE; DIURNAL ACTIVITY; ENDANGERED SPECIES; ENDEMIC SPECIES; MAMMAL; POPULATION DENSITY; RAPTOR; SPECIES DIVERSITY;

CALIFORNIA; CHANNEL ISLANDS [CALIFORNIA]; NORTH AMERICA; SANTA CATALINA ISLAND; SANTA CRUZ ISLAND; UNITED STATES;

AQUILA; AQUILA CHRYSAETOS; CANIDAE; UROCYON LITTORALIS;

EID: 63149135752     PISSN: 13679430     EISSN: 14691795     Source Type: Journal    
DOI: 10.1111/j.1469-1795.2008.00229.x     Document Type: Article

References (54)

1. Aguilar, A., Roemer, G., Debenham, S., Binns, M., Garcelon, D. & Wayne, R.K. (2004). High MHC diversity maintained by balancing selection in an otherwise genetically monomorphic mammal. Proc. Natl. Acad. Sci. USA 101, 3490-3494.
2. Anholt, B.R. & Werner, E.E. (1995). Interaction between food availability and predation mortality mediated by adaptive-behavior. Ecology 76, 2230-2234.
3. Bakker, V., Garcelon, D., Aschehoug, E., Crooks, K., Newman, C., Schmidt, G., Van Vuren, D. & Woodroffe, R. (2003). Current status of the Santa Cruz Island fox (Urocyon littoralis santacruzae). Proceedings of the sixth Channel Islands symposium, Santa Barbara Museum of Natural History, Santa Barbara, CA, Ventura, CA.
4. Berger, J., Swenson, J.E. & Persson, I.L. (2001). Recolonizing carnivores and naive prey: Conservation lessons from Pleistocene extinctions. Science 291, 1036-1039.
5. Blackburn, T.M., Cassey, P., Duncan, R.P., Evans, K.L. & Gaston, K.J. (2004). Avian extinction and mammalian introductions on oceanic islands. Science 305, 1955-1958.
6. Blumstein, D.T. (2006). The multipredator hypothesis and the evolutionary persistence of antipredator behavior. Ethology 112, 209-217.
7. Blumstein, D.T. & Daniel, J.C. (2002). Isolation from mammalian predators differentially affects two congeners. Behav. Ecol. 13, 657-663.
8. Burbidge, A.A. & McKenzie, N.L. (1989). Patterns in the modern decline of western-Australia vertebrate fauna - causes and conservation implications. Biol. Conserv. 50, 143-198.
9. Cochran, W. & Lord, R. (1963). A radio-tracking system for wild animals. J. Wildl. Mgmt. 27, 9-24.
10. Collins, P. (1982). Origin and differentiation of the island fox: A study of evolution in insular populations. Santa Barbara, CA: University of California.
11. Coonan, T.J., Schwemm, C.A., Roemer, G.W., Garcelon, D.K. & Munson, L. (2005). Decline of an island fox subspecies to near extinction. Southwest. Nat. 50, 32-41.
12. Coss, R.G. (1999). Effects of relaxed natural selection on the evolution of behavior. In Geographic variation in behavior; perspectives in evolutionary mechanisms: 180-208. Foster, S.A. & Endler, J.A. (Eds). New York: Oxford University Press.
13. Courchamp, F., Chapuis, J.L. & Pascal, M. (2003). Mammal invaders on islands: Impact, control and control impact. Biological Reviews 78, 347-383.
14. Crooks, K. (1994). Demography and status of the island fox and the island spotted skunk on Santa Cruz Island, California. Southwest. Nat. 39, 257-262.
15. Crooks, K.R. & Van Vuren, D. (1995). Resource utilization by 2 insular endemic mammalian carnivores, the island fox and island spotted skunk. Oecologia 104, 301-307.
16. Crooks, K.R. & VanVuren, D. (1996). Spatial organization of the island fox (Urocyon littoralis) on Santa Cruz Island, California. J. Mammal. 77, 801-806.
17. Fausett, L.L. (1982). Activity and movement patterns of the island fox, Urocyon littoralis, Baird 1857 (Carnivora: Canidae). Los Angeles, CA: University of California Los Angeles.
18. Galef, B.G. & Laland, K.N. (2005). Social learning in animals: empirical studies and theoretical models. Bioscience 55, 489-499.
19. Griffin, A.S. (2004). Social learning about predators: A review and prospectus. Learn. Behav. 32, 131-140.
20. Griffin, A.S., Blumstein, D.T. & Evans, C.S. (2000). Training captive-bred or translocated animals to avoid predators. Conserv. Biol. 14, 1317-1326.
21. Griffin, A.S., Evans, C.S. & Blumstein, D.T. (2001). Learning specificity recognition. Anim. Behav. 62, 577-589.
22. Griffiths, R.A., Schley, L., Sharp, P.E., Dennis, J.L. & Roman, A. (1998). Behavioural responses of Mallorcan midwife toad tadpoles to natural and unnatural snake predators. Anim. Behav. 55, 207-214.
23. Hallberg, D.L. & Trapp, G.R. (1984). Gray fox temporal and spatial activity in a riparian/agricultural zone in California's Central Valley. In California Riparian Systems: Ecology, conservation, and productive management: 920-928. Warner, R.E. & Warner, K.M. (Eds). Berkeley, CA: University of California Press.
24. Hanna, W.C. (1930). Notes on the golden eagle in Southern California. The Condor 32, 121-123.
25. Haroldson, K.J. & Fritzell, E.K. (1984). Home ranges, activity, and habitat use by gray foxes in an oak hickory forest. J. Wildl. Mgmt. 48, 222-227.
26. Hendry, A.P. & Kinnison, M.T. (1999). Perspective: The pace of modern life: Measuring rates of contemporary microevolution. Evolution 53, 1637-1653.
27. Hendry, A.P. & Kinnison, M.T. (2001). An introduction to microevolution: Rate, pattern, process. Genetica 112, 1-8.
28. Jacobs, G.H., Deegan, J.F., Crognale, M.A. & Fenwick, J.A. (1993). Photopigments of dogs and foxes and their implications for canid vision. Vis. Neurosci. 10, 173-180.
29. Jones, K.L., Van Vuren, D.H. & Crooks, K.R. (2008). Sudden increase in a rare endemic carnivore: Ecology of the island spotted skunk. J. Mammal. 89, 75-86.
30. Kavanau, J.L. & Ramos, J. (1975). Influences of light on activity and phasing of carnivores. Am. Nat. 109, 391-418.
31. Kitchen, A.M., Gese, E.M. & Schauster, E.R. (2000). Changes in coyote activity patterns due to reduced exposure to human persecution. Can. J. Zool. - Rev. Can. Zool. 78, 853-857.
32. Laughrin, L. (1977). The island fox: A field study of its behavior and ecology. Observational study. Santa Barbara, CA: University of California Santa Barbara.
33. Lima, S.L. (1998). Nonlethal effects in the ecology of predator-prey interactions - What are the ecological effects of anti-predator decision-making? Bioscience 48, 25-34.
34. Loose, C.J. & Dawidowicz, P. (1994). Trade-offs in diel vertical migration by zooplankton - the costs of predator avoidance. Ecology 75, 2255-2263.
35. Macdonald, D.W. (1983). The ecology of carnivore social behavior. Nature 301, 379-384.
36. Magurran, A.E. (1999). The causes and consequences of geographic variation in antipredator behavior: Perspectives from fish populations. In Geographic variations in behavior: Perspectives on evolutionary mechanisms: 139-163. Foster, S.A. & Endler, J.A. (Eds). New York: Oxford University Press.
37. Mooney, H.A. & Cleland, E.E. (2001). The evolutionary impact of invasive species. Proc. Natl. Acad. Sci. USA 98, 5446-5451.
38. Moore, C.M. & Collins, P.W. (1995). Urocyon littoralis. Mamm. Species 489, 1-7.
39. Nel, J.A.J. (1999). Canid social learning. In Mammalian social learning: comparative and ecological perspectives: 258-278. Box, H.O. & Gibson, K.R. (Eds). Cambridge: Cambridge University Press.
40. Palomares, F. & Delibes, M. (1991). Assessing 3 methods to estimate daily activity patterns in radio-tracked mongooses. J. Wildl. Mgmt. 55, 698-700.
41. Pettersson, L.B., Andersson, K. & Nilsson, K. (2001). The diel activity of crucian carp, Carassius carassius, in relation to chemical cues from predators. Environmental Biology of Fishes 61, 341-345.
42. Pimm, S.L. (1991). The balance of nature?: Ecological issues in the conservation of species and communities. Chicago: University of Chicago Press.
43. Reznick, D.N. & Ghalambor, C.K. (2001). The population ecology of contemporary adaptations: What empirical studies reveal about the conditions that promote adaptive evolution. Genetica 112-113, 183-198.
44. Roemer, G.W. (1999). The ecology and conservation of the island fox (Urocyon littoralis). Observational. Los Angeles, CA: University of California Los Angeles.
45. Roemer, G.W., Coonan, T.J., Garcelon, D.K., Bascompte, J. & Laughrin, L. (2001a). Feral pigs facilitate hyperpredation by golden eagles and indirectly cause the decline of the island fox. Anim. Conserv. 4, 307-318.
46. Roemer, G.W., Donlan, C.J. & Courchamp, F. (2002). Golden eagles, feral pigs, and insular carnivores: How exotic species turn native predators into prey. Proc. Natl. Acad. Sci. USA 99, 791-796.
47. Roemer, G.W., Smith, D.A., Garcelon, D.K. & Wayne, R.K. (2001b). The behavioural ecology of the island fox (Urocyon littoralis). J. Zool. 255, 1-14.
48. de la Rosa, C. (2006). Santa Catalina Island 2006 Fox Recovery Update. In Annual Integrated Fox Recovery Team Meeting, Four Points Sheraton, Ventura, CA, Appendix 7, pp. 8-9.
49. Savidge, J.A. (1987). Extinction of an island forest avifauna by an introduced snake. Ecology 68, 660-668.
50. Sih, A. (1984). The behavioral-response race between predator and prey. Am. Nat. 123, 143-150.
51. Stockwell, C.A., Hendry, A.P. & Kinnison, M.T. (2003). Contemporary evolution meets conservation biology. Trends Ecol. Evol. 18, 94-101.
52. Timm, S.F., Stokely, J.M., Gehr, T.B., Peebles, R.L. & Garcelon, D.K. (2000). Investigation into the decline of island foxes on Santa Catalina Island. Arcata, CA: Institute for Wildlife Studies.
53. Vermeer, L. (2006). Santa Cruz 2006 Island Fox Update. In Annual Integrated Fox Recovery Team Meeting, Four Points Sheraton, Ventura, CA, Appendix 7, pp. 11-12.
54. Wayne, R.K., George, S.B., Gilbert, D., Collins, P.W., Kovach, S.D., Girman, D. & Lehman, N. (1991). A morphologic and genetic study of the island fox Urocyon littoralis. Evolution 45, 1849-1868.