Toxicity and Efficacy of the Antileishmanial Drug Meglumine Antimoniate in the Owl Monkey (Aotus trivirgatus)

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FIGURE 2. Average proportion of time spent moving by male Periplaneta americana infected with Moniliformis moniliformis and their uninfected counterparts. and sociology of the Norway rat. U.S. Dept. of Health, Education and Welfare, Public Health Service, 288 p.), peaking 2 to 3 hr after sunset (Takahashi and Lore, 1980, Behav. Neural Biol. 29: 527-531). Rats eat P. americana readily (Roth and Willis, 1960. The biotic associations of cockroaches, Smith. Misc. Collections 141, 470 p.), and infected cockroaches may be more vulnerable to predation by rats, especially if the cockroaches display positive phototaxis, increased activity, and movement when illuminated. Periplaneta americana generally shows a negative photoresponse (Roth, L. M., 1981. In The American cockroach, W. J. Bell and K. G. Adiyodi [eds.]. Chapman and Hall, London, pp. 1-14). I am very grateful to Dr. R. H. Barth, Jr., for laboratory space, animal care facilities, helpful discussion, and critically reading this manuscript. His encouragement and advice have long been invaluable to me. I also thank Dr. Bill Cade for reading and commenting on the manuscript. Dr. Gene Schroder helped me acquire wild Rattus norvegicus. Dr. James Larimer provided a workshop, advice, and supervision as I built activity wheels. Glenn Perrigo and Drs. William Bell, Frank Fisher, Terry Page, and Mary Ann Rankin also made useful suggestions. I thank Mr. Ed Evans for remarkable design, construction, and maintenance of inexpensive photocell apparatus and Drs. Frank Bronson and Claude Desjardins for wheel-monitoring equipment. The Department of Zoology at the University of Texas at Austin provided computer time.