Caribbean Journal of Science, Vol. 41, No. 4, 870-873, 2005 Copyright 2005 College of Arts and Sciences University of Puerto Rico, Mayagu ¨ ez The Influence of Temperature and Humidity on Activity Patterns of the Lizards Anolis stratulus and Ameiva exsul in the British Virgin Islands K ERRY L. N ICHOLSON , S HANNON M. TORRENCE,DANA M. GHIOCA,J OYDEEP B HATTACHARJEE , A DRIAN E. A NDREI , JENNIFER OWEN,NIKKI JO A. RADKE, AND GAD PERRY. Department of Range, Wildlife, and Fisheries Management, Box 42125, Texas Tech University, Lubbock, Texas 79409. Corresponding author: Gad Perry, email: gad.perry@ttu.edu ABSTRACT.—Many organisms modify their behav- ior to reduce exposure to unfavorable abiotic condi- tions, but detailed information is available for only a few species. We studied the diurnal activity patterns of Anolis stratulus and Ameiva exsul on Guana Is- land, British Virgin Islands, in order to determine how they are affected by temperature and humidity. We surveyed transects on foot between 0730 and ms. received December 10, 2004; accepted Septem- ber 20, 2005 NOTES 870