Literature Cited - Alien Species and Evolution - page 326

Paterson, A. H., K. F. Schertz,Y. R. Lin, S. C. Liu, and Y. L. Chang. 1995.The weed-
iness of wild plants: molecular analysis of genes responsible for dispersal and per-
sistence of johnsongrass ( Sorghum halepense L. Pers.). Proceedings of the National
Academy of Sciences USA 92:6127-6131.
Patten, M. A., and K. F. Campbell. 1998. Has brood parasitism selected for earlier
nesting in the California Gnatcatcher? Western Birds 29:290-298.
Patton, J. L., and P. V. Brylski. 1987. Pocket gophers in alfalfa fields: causes and con-
sequences of habitat-related body size variation. American Naturalist

130:493-506.
Patton, J. L., and M. F. Smith. 1990. The evolutionary dynamics of the pocket gopher Tho-
momys bottae ,with emphasis on California populations. University of California
Publications in Zoology 123, 161 pp., Berkley, Calif.
Patton, J. L., S.Y.Yang, and P. Myers. 1975. Genetic and morphological divergence
among introduced rat populations ( Rattus rattus ) of the Galapagos archipelago,
Ecuador. Systematic Zoology 24:296-310.
Pemberton, R.W. 2000. Predictable risk to native plants in weed biological control.
Oecologia 125:489-494.
Peñuelas, J., and I. Filella. 2001. Responses to a warming world. Science
294:793-795.
Peñuelas, J., I. Filella, and P. Comas. 2002.Changed plant and animal life cycles from
1952 to 2000 in the Mediterranean region. Global Change Biology 8:531-544.
Pergams, O. R.W., and M.V. Ashley. 2001. Microevolution in island rodents. Genet-
ica 112-113:245-256.
Perry, W. L., J. E. Feder, G. Dwyer, and D. M. Lodge. 2001a. Hybrid zone dynamics
and species replacement between Orconectes crayfishes in a northern lake. Evolu-
tion 55:1153-1166.
Perry, W. L., J. E. Feder, and D. M. Lodge. 2001b. Implications of hybridization
between introduced and resident Orconectes crayfish. Conservation Biology

15:1656-1666.
Perry, W. L., D. M. Lodge, and J. L. Feder. 2002. Importance of hybridization
between indigenous and nonindigenous freshwater species: an overlooked threat
to North American biodiversity. Systematic Biology 51:255-275.
Peterson, R. A. 1962. Factors affecting resistance to heavy grazing in needle-and-
thread grass. Journal of Range Management 15:183-189.
Petren, K., B. R. Grant, and P. R. Grant. 1999. A phylogeny of Darwin's finches
based on microsatellite DNA length variation. Proceedings of the Royal Society of
London B, Biological Sciences 266:321-330.
Petrie, S. A., and R. W. Knapton. 1999. Rapid increase and subsequent decline of
zebra and quagga mussels in Long Point Bay, Lake Erie: possible influence of
waterfowl predation. Journal of Great Lakes Research 25:772-782.
Phillips, P.A., and M. M. Barnes. 1975. Host race formation among sympatric apple,
walnut, and plum populations of the codling moth, Laspeyresia pomonella . Annals
of the Entomological Society of America 68:1053-1060.
Pimentel, D., ed. 2002. Biological invasions: economic and environmental costs of alien
plant, animal, and microbe species. Boca Raton, Fla.: CRC Press.