Matthew D. Herron, Todd A. Castoe, Christopher L. Parkinson: Sciurid phylogeny and the paraphyly of holarctic ground squirrels (Spermophilus). Molecular Phylogenetics and Evolution 31, 2004; S. 1015–1030. (doi:10.1016/j.ympev.2003.09.015, Volltext, PMID 15120398)
C. N. Slobodchikoff, Andrea Paseka, Jennifer L. Verdolin: Prairie dog alarm calls encode labels about predator colors. In: Animal Cognition. Bd. 12, Nr. 3, 2009, ISSN1435-9448, S. 435–439, doi:10.1007/s10071-008-0203-y. newscientist.com vom 13. Mai 2009 (identisch mit New Scientist Nr. 2707 vom 9. Mai 2009): Prairie dogs issue warnings in glorious technicolour.
C. N. Slobodchikoff, Andrea Paseka, Jennifer L. Verdolin: Prairie dog alarm calls encode labels about predator colors. In: Animal Cognition. Bd. 12, Nr. 3, 2009, ISSN1435-9448, S. 435–439, doi:10.1007/s10071-008-0203-y. newscientist.com vom 13. Mai 2009 (identisch mit New Scientist Nr. 2707 vom 9. Mai 2009): Prairie dogs issue warnings in glorious technicolour.
nih.gov
ncbi.nlm.nih.gov
Matthew D. Herron, Todd A. Castoe, Christopher L. Parkinson: Sciurid phylogeny and the paraphyly of holarctic ground squirrels (Spermophilus). Molecular Phylogenetics and Evolution 31, 2004; S. 1015–1030. (doi:10.1016/j.ympev.2003.09.015, Volltext, PMID 15120398)
snakegenomics.org
Matthew D. Herron, Todd A. Castoe, Christopher L. Parkinson: Sciurid phylogeny and the paraphyly of holarctic ground squirrels (Spermophilus). Molecular Phylogenetics and Evolution 31, 2004; S. 1015–1030. (doi:10.1016/j.ympev.2003.09.015, Volltext, PMID 15120398)
C. N. Slobodchikoff, Andrea Paseka, Jennifer L. Verdolin: Prairie dog alarm calls encode labels about predator colors. In: Animal Cognition. Bd. 12, Nr. 3, 2009, ISSN1435-9448, S. 435–439, doi:10.1007/s10071-008-0203-y. newscientist.com vom 13. Mai 2009 (identisch mit New Scientist Nr. 2707 vom 9. Mai 2009): Prairie dogs issue warnings in glorious technicolour.