ing and comparative analysis of the mouse genome. Nature
420 : 520 – 62.
Mucignat-Caretta, C., A. Caretta, and A. Caviggioni. 1995.
Acceleration of puberty onset in female mice by male urinary
proteins. Journal of Physiology486 : 517–22.
Müller-Schwarze, D. 1992. Castoreum of beaver (Castor
canadensis): Function, chemistry and biological activity of its
components. In Chemical signals in vertebrates 6,ed. R. L.
Doty and D. Müller-Schwarze, 457– 64. New York: Plenum.
Müller-Schwarze, D., and B. A. Schulte. 1999. Behavioral and
ecological characteristics of a “climax” population of beaver
(Castor canadensis). In Beaver protection, management, and
utilization in Europe and North America,ed. P. E. Busher
and R. M. Dzieciolowski, 161–77. New York: Kluwer
Academic /Plenum.
Müller-Schwarze, D., and L. Sun. 2003. The beaver: Natural
history of a wetlands engineer.Ithaca, NY: Cornell University
Press.
Mumme, R. L. 1997. A bird’s eye view of mammalian coopera-
tive breeding. In Cooperative breeding in mammals,ed.
N. G. Solomon and J. A. French, 364 – 88. Cambridge:
Cambridge University Press.
Munn, L. C. 1993. Effects of prairie dogs on physical and chemi-
cal properties of soils. In Management of Prairie Dog Com-
plexes for the Reintroduction of the Black-footed Ferret,ed.
J. L. Oldemeyer, D. E. Biggins, and B. J. Miller, 11–17. Wash-
ington, DC: United States Department of the Interior.
Muñoz, A., and R. Murúa. 1987. Biología de Octodon bridgesi
bridgesi(Rodentia, Octodontidae) en la zona costera de Chile
central. Boletín de la Sociedad de Biología de Concepción
(Chile)58 : 107–17.
Muñoz-Pedreros, A. 1992. Ecología del ensamble de micro-
mamíferos en un agroecosistema forestal de Chile central:
Una comparación latitudinal. Revista Chilena de Historia
Natural65 : 417–28.
Murdock, H. G., and J. A. Randall. 2001. Olfactory communica-
tion and neighbor recognition in giant kangaroo rats. Ethol-
ogy107 : 149 – 60.
Murie, J. O. 1992. Predation by badgers on Columbian ground
squirrels. Journal of Mammalogy73 : 385 – 94.
———. 1995. Mating behavior of Columbian ground squirrels.
I. Multiple mating by females and multiple paternity. Cana-
dian Journal of Zoology73 : 1819 –26.
Murie, J. O., and D. A. Boag. 1984. The relationship of body
weight to overwinter survival in Columbian ground squirrels.
Journal of Mammalogy65 : 688 – 90.
Murie, J. O., D. A. Boag, and K. Kivett. 1980. Litter size in Co-
lumbian ground squirrels (Spermophilus columbianus). Jour-
nal of Mammalogy61 : 237– 44.
Murie, J. O., and M. A. Harris. 1984. The history of individuals
in a population of Columbian ground squirrels: Source, settle-
ment, and site attachment. In The biology of ground-dwelling
squirrels,ed. J. O. Murie and G. R. Michener, 353 –74. Lin-
coln: University of Nebraska Press.
———. 1994. Social interactions and dominance relationships
between female and male Columbian ground squirrels. Cana-
dian Journal of Zoology66 : 1414 –20.
Murie, J. O., and I. G. McLean. 1980. Copulatory plugs in
ground squirrels. Journal of Mammalogy61 : 355 –56.
Murie, J. O., and G. R. Michener, eds. 1984. The biology of
ground-dwelling squirrels: Annual cycles, behavioral ecology,
and sociality.Lincoln: University of Nebraska Press.
Murphy, G. 1968. Pattern in life history and the environment.
American Naturalist102 : 390 – 404.
Murphy, W. J., E. Eizirik, W. E. Johnson, Y. P. Zhang, O. A.
Ryder, and S. J. O’Brien. 2001a. Molecular phylogenetics
and the origins of placental mammals. Nature 409 :614 –18.
Murphy, W. J., E. Eizirik, S. J. O’Brien, O. Madsen, M. Scally,
C. J. Douady, E. Teeling, O. A. Ryder, M. J. Stanhope,
W. W. de Jong., and M. S. Springer. 2001b. Resolution of the
early placental mammal radiation using Bayesian phylogenet-
ics. Science294 : 2348 –51.
Musser, G. G., and M. D. Carleton. 1993. Family Muridae. In
Mammal species of the world,ed. D. E. Wilson and D. M.
Reeder, 501–755. Washington, DC: Smithsonian Institution
Press.
Myers, J. 1978. Sex ratio adjustment under food stress: Maxi-
mization of quality or numbers of offspring? American Natu-
ralist112 : 381– 88.
Myers, J. H. 1973. The absence of talleles in feral populations
of house mice. Evolution27 : 702 – 4.
Myers, J. H., and C. J. Krebs. 1971. Genetic, behavioral, and
reproductive attributes of dispersing field voles, Microtus
pennsylvanicusand Microtus ochrogaster. Ecological Mono-
graphs41 : 53 –78.
Myers, P., and L. L. Masters. 1983. Reproduction by Peromyscus
maniculatus: Size and compromise. Journal of Mammalogy
64 : 1–18.
Myers, P., L. L. Master, and A. Garrett. 1985. Ambient tempera-
ture and rainfall: An effect on sex ratio and litter size in deer
mice. Journal of Mammalogy66 : 289 – 98.
Myles, T. G. 1988. Resource inheritance in social evolution from
termites to man. In The ecology of social behavior,ed. C. N.
Slobodchikoff, 379 – 423. San Diego, CA: Academic Press.
Myllymaki, A. 1977. Intraspecific competition and home
range dynamics in the field vole Microtus agrestis. Oikos
29 : 553 – 69.
Nadachowski, A., and J. I. Mead. 1999a. Alticola argentatus.
Mammalian Species625 : 1– 4.
———. 1999b. Alticola strelzovi. Mammalian Species626 : 1–3.
Nadeau, J. H. 1985. Ontogeny. In Biology of New WorldMicro-
tus. Special publication no. 8, ed. R. H. Tamarin, 254 – 85.
Shippensburg, PA: American Society of Mammalogists.
Nadler, C. F., R. S. Hoffmann, and J. J. Pizzimenti. 1971. Chro-
mosomes and serum proteins of prairie dogs and a model of
Cynomysevolution. Journal of Mammalogy52 : 545 –55.
Nagorsen, D. W. 1987. Marmota vancouverensis. Mammalian
Species270 : 1–5.
Nathan, R. 2001. The challenges of studying dispersal. Trends in
Ecology and Evolution16 : 481– 83.
National Oceanic and Atmospheric Association (NOAA). 1994.
US divisional and station climatic data and normals vol. 1.
United States Department of Commerce. Retrieved from
http://www.ncdc.noaa.gov/oa/ncdc.html.
NatureServe. 2004. NatureServe Explorer: An online encyclope-
dia of life (Web application). Version 4.0. Available http://
http://www.natureserve.org /explorer. Arlington, VA: NatureServe.
Natynczuk, S. E., and D. W. Macdonald. 1994a. Scent, sex, and
the self-calibrating rat. Journal of Chemical Ecology20 :
1843 –57.
———. 1994b. Analysis of rat haunch odour using the dynamic
solvent effect and principal component analysis. Journal of
Chemical Ecology20 : 1859 – 66.
Naumov, N. P., and V. S. Lobachev. 1975. Ecology of desert560 References