Anal pocket

A predator odor affected a pocket gopher, Thomomys talpoides, population in western Canada. First live-trapping removed the gophers from plots of 4ha area in an orchard. Then synthetic sulfur compounds from stoat, Mustek erminea anal glands (1 1 mixture of 2-propylthietane and 3-propyl-l,2-dithiolane) were... 

Dickopf S, Prank M, Junker HD, Maier S, Metz G, Ottleben H, Rau H, Schellhaas N, Schmidt K, Sekul R, et al. Custom chemical microarray production and affinity fingerprinting for the SI pocket of factor Vila. Anal. Biochem. 2004 335 50-57. 

Custom chemical microarray production and affinity fingerprinting for the SI pocket of factor Vila. Anal. Biochem. 335, 50-57. 

AVOIDANCE RESPONSE OF POCKET GOPHERS (THOMOMYS TALPOIDES) TO MUSTELID ANAL GLAND COMPOUNDS... 

Fig. 3. Avoidance behavior responses ("capture" in live-traps) of pocket gophers to mustelid anal gland compounds and a novel odor in the laboratory bioassay arena. p < 0.05 p < 0.01 significant difference by chi-square. + p = 0.75 ...

This study has demonstrated that certain mustelid anal gland compounds will produce an avoidance response by pocket gophers in both laboratory and field environments. As discussed for snowshoe hares (Sullivan and Crump, 1984), this biological activity is presumably a fear response by gophers to one or more components of mustelid (predator) anal gland odor. 

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Sullivan, T.P. D.R. Crump. 1986. Avoidance of pocket gophers Thomomys talapoides) to mustelid anal gland compounds. In Chemical Signals in Vertebrates 4, Ecology, Evolution, and Comparative Biology, eds. D. Duvall, D. Muller-Schwarze R.M. Silverstein, pp. 514-531, Plenum, New York. 

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