Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 6 of 6
Full-Text Articles in Life Sciences
Chapter 7: The Chemical Senses In Birds, Larry Clark
Chapter 7: The Chemical Senses In Birds, Larry Clark
Larry Clark
No abstract provided.
Chemical Bird Repellents: Possible Use In Cyanide Ponds, Larry Clark, Pankaj Shah
Chemical Bird Repellents: Possible Use In Cyanide Ponds, Larry Clark, Pankaj Shah
Larry Clark
No abstract provided.
Information Content Of Prey Odor Plumes: What Do Foraging Leach's Storm Petrels Know?, Larry Clark, Pankaj Shah
Information Content Of Prey Odor Plumes: What Do Foraging Leach's Storm Petrels Know?, Larry Clark, Pankaj Shah
Larry Clark
Electrophysiological responses to odor have been recorded for concen trations as low as 0.01 ppm for Manx shearwaters Puffinus puffinus and Black-footed Albatrosses Diomedea nigripes, indicating that relative to most birds, procellariiforms have a keen sense of smell (Wenzel and Sieck 1972, cf.clark 1991; Clark and Smeraski 1990; Clark and Mason 1989). Such acuity is not unexpected, given the extensive development of the olfactory anatomy of these species (Bang and Wenzel 1986). Field observations indi cate that Procellariiformes use their sense of smell to locate food (Grubb 1972; Hutchison and Wenzel 1980; Lequette, Verheyden and Jouventin 1989). -_ However, it …
Taxon-Specific Differences In Responsiveness To Capsaicin And Several Analogues: Correlates Between Chemical Structure And Behavioral Aversiveness, Russell Mason, Jay Bean, Pankaj Shah, Larry Clark
Taxon-Specific Differences In Responsiveness To Capsaicin And Several Analogues: Correlates Between Chemical Structure And Behavioral Aversiveness, Russell Mason, Jay Bean, Pankaj Shah, Larry Clark
Larry Clark
The present set of experiments was designed to explore avian insensitivity to capsaicin. Based upon a molecular model of avian chemosen sory repellency, we hypothesized that structural modifications of the basic capsaicin molecule, which is itself not aversive to birds, might produce aver sive analogues. To this end, European starlings (Sturnus vulgaris) and Nor way rats (Rattus norvegicus) were given varied concentrations of synthetic capsaicin and four analogues (methyl capsaicin, veratryl amine, veratryl acet amide, vanillyl acetamide) in feeding and drinking tests. The results agreed with a model that we are developing to describe the chemical nature of avian repellents. …
Prediction Of Avian Repellency From Chemical Structure: The Aversiveness Of Vanillin, Vanillyl Alcohol, And Veratryl Alcohol, Pankaj Shah, Larry Clark, Russel Mason
Prediction Of Avian Repellency From Chemical Structure: The Aversiveness Of Vanillin, Vanillyl Alcohol, And Veratryl Alcohol, Pankaj Shah, Larry Clark, Russel Mason
Larry Clark
The effectiveness of bird repellents is associated with the presence of an electron-withdrawing group (carbonyl or carboxyl) and an electron-donating group in resonance on a phenyl ring. The present experiments were designed to examine the relative importance of these structural features. European starlings (Sturnus vulgaris) were presented with vanillin, vanillyl alcohol, and veratryl alcohol in two-cup and one-cup feeding trials and in one-bottle drinking tests. In feeding trials, veratryl alcohol was significantly more aversive than the other two chemicals. In drinking tests. veratryl alcohol was repellent only at the highest concentration (0.5% ml/ml), and was lethal at that concentration and …
The Development Of Effective Endothermy And Homeothermy By Nestling Piñon Jays, Larry Clark
The Development Of Effective Endothermy And Homeothermy By Nestling Piñon Jays, Larry Clark
Larry Clark
No abstract provided.