References

Baker, J.A. and R.J. Brooks. 1982. Impact of raptor predation on declining vole population. Journal of Mammology 63: 297-300.

Batzli, G.O. and F.A. Pitelka. 1970. Influence of meadow mouse populations on California grassland. Ecology 51: 1027-1039.
 
Cudworth, N.L and J.L. Koprowski. 2010. Microtus californicus (Rodentia: Cricetidae). Mammalian species 42: 230-243.
 
Lidicker, W.Z and P.K. Anderson. 1962. Colonization of an island by Microtus californicus, analyzed on the basis of runway transects. Journal of Animal Ecology 31: 503-517.
 
ADW. 2002. Microtus californicus. animaldiversity.ummz.umich.edu/accounts/Microtus_californicus/>. Accessed 25 October 2013.
 
McGuire, J. 2011. Identifying California Microtus species using geometric morphometrics    documents Quaternary geographic range contractions. Journal of Mammology 92:                  1383-1394.
 
Meadow Vole. 2009. Vertebrate Pest Control Handbook. http://www.vpcrac.org/images/meadowvolespart3peter.pdf>. Accessed 25 October 2013.
 
Vole Function. http://www.crittergetteronline.com/Voles/volefact.html>. Accessed 23 November 2013.
 

Picture Websites

http://www.volecontrol.com/california_vole.html
http://www.env.gov.nl.ca/env/snp/programs/education/animal_facts/mammals/meadow_vole.html
http://www.sbcounty.gov/museum/exhibits/etiwandafan/california_vole.htm
http://www.nps.gov/fiis/planyourvisit/sunken-forest-virtual-tour_11.htm
http://commons.wikimedia.org/wiki/File:The_Ancestors_Tale_Mammals_Phylogenetic_Tree_in_mya.png
http://tolweb.org/Muroidea/16461/2001.01.01
http://en.wikipedia.org/wiki/File:California_Vole_(Microtus_californicus).jpg
http://en.wikipedia.org/wiki/File:Hawk_eating_prey.jpg
http://www.newstimes.com/news/article/Vanquishing-voracious-voles-3828495.php#photo-3374778
http://www.env.gov.yk.ca/animals-habitat/mammals/voles.php
http://deltafarmland.ca/content/townsends-vole