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Avian Chemical Repellency: A Structure-Activity Approach And Implications, Pankaj Shah, Russell Mason, Larry Clark
Avian Chemical Repellency: A Structure-Activity Approach And Implications, Pankaj Shah, Russell Mason, Larry Clark
Larry Clark
Until recently, the discovery of avian sensory repellents has been empirical (MaRnn, AnAmR 'Inn l;qr\r FlR'l), Hm> !ilv!ilr, recent liltudilillil in our laboratory have shown that many avian repellents have similar perceptual and structural properties (Mason et al. 1989; Mason Clark and Shah 1991; Clark and Shah 1991; Clark, Shah and Mason 1991; Shah, Clark and Mason 1991). For example, methyl anthranilate, which has a grapy odor, is repel lent to birds (Kare and Pick, 1960). Ortho-aminoacetophenone has an odor and structure similar to that of methyl anthranilate, differing only in the substitution of a ketone for an ester group …
Capsaicin Effects On Consumption Of Food By Cedar Waxwings And House Finches., Donald Norman, Russell Mason, Larry Clark
Capsaicin Effects On Consumption Of Food By Cedar Waxwings And House Finches., Donald Norman, Russell Mason, Larry Clark
Larry Clark
Capsaicin effects on consumption of food by Cedar Waxwings and House Finches. Capsaicinoids (e.g., N-vanillyl-n-nonamide. norcapsaicin, nordihydrocapsaicin, capsaicin, dihydrocapsaicin, homocapsaicin, homodihydrocapsaicin; Hoffman 1983) are aromatic am ides and the pungent principles in Capsicum peppers. Although these substances are strong chemical irritants for most mammals (e.g.. Rozin et a!. 1979), the available data suggest that they are inoffensive to some birds. For example. European Starlings (Sturn us vulgaris) and Rock Doves (Columba Iivia) are unresponsive to these compounds, even when con centrations greatly exceed those which mammals avoid (Szolcsanyi et al. 1986; Mason et a!.. in press).