Viitteet

Bertolino, S., & Genovesi, P. (2003). Spread and attempted eradication of the grey squirrel (Sciurus carolinensis) in Italy, and consequences for the red squirrel (Sciurus vulgaris) in Eurasia. Biological Conservation, 109(3), 351-358. doi:10.1016/S0006-3207(02)00161-1

Bertolino, S., Di Montezemolo, N. C., Preatoni, D. G., Wauters, L. A., & Martinoli, A. (2014). A grey future for Europe: Sciurus carolinensis is replacing native red squirrels in Italy. Biological invasions, 16(1), 53-62. DOI:10.1007/s10530-013-0502-3

Bonnington, C., Gaston, K. J., & Evans, K. L. (2014). Squirrels in suburbia: influence of urbanisation on the occurrence and distribution of a common exotic mammal. Urban Ecosystems, 17(2): 533-546. DOI:10.1007/s11252-013-0331-2

DEFRA 2004. Urban grey squirrels. Rural Development Service Technical Advice Note 09. (pdf, 3 pages) [cited 29.3.2016]

Genovesi, P., Bacher, S., Kobelt, M., Pascal, M., & Scalera, R. (2009). Alien mammals of Europe. In Handbook of alien species in Europe (pp. 119-128). Springer Netherlands. http://link.springer.com/chapter/10.1007%2F978-1-4020-8280-1_9 [cited 29.3.2016]

Koprowski, J.L. 1994. Sciurus carolinensis. Mammalian Species, 480:1-9. doi:10.2307/3504224; JSTOR:3504224 [cited 29.3.2016]

Linzey, A.V., Koprowski, J. & NatureServe (Hammerson, G.). 2008. Sciurus carolinensis. The IUCN Red List of Threatened Species 2008:e.T42462A10699433. DOI:10.2305/IUCN.UK.2008.RLTS.T42462A10699433.en. [cited 29.3.2016].

Sandro, B. (2008). Introduction of the American grey squirrel (Sciurus carolinensis) in Europe: a case study in biological invasion. Current Science 95(7): 903-906. PDF [cited 29.3.2016]

UNEP-WCMC. 2010. Review of the Grey Squirrel Sciurus carolinensis. UNEP-WCMC, Cambridge. (PDF 21 sivua) [cited 29.3.2016]

Eastern gray squirrel (grey squirrel) – Sciurus carolinensis