Wood lice were confined within two adjacent corrals (identified as A and B), and were allowed free movement between the two. A total of 10 animals were selected from a group of more than 120, divided randomly into two groups, and then placed into the study corrals five per side. The position of each animal was then recorded at the end of each 60-second period for 10 minutes. Three exercises were run. The first involved identical environmental conditions in both corrals for 5 minutes, followed by covering corral B with a light shield producing dark conditions for the last 5 minutes. The... Show more

Wood lice were confined within two adjacent corrals (identified as A and B), and were allowed free movement between the two. A total of 10 animals were selected from a group of more than 120, divided randomly into two groups, and then placed into the study corrals five per side. The position of each animal was then recorded at the end of each 60-second period for 10 minutes.

Three exercises were run. The first involved identical environmental conditions in both corrals for 5 minutes, followed by covering corral B with a light shield producing dark conditions for the last 5 minutes. The second involved introducing a moist pad covering the floor surface in corral A while corral B remained dry. The animals were introduced in the same manner and allowed free range, with identical lighting on both sides for 5 minutes followed by a period of darkness only in corral B. The third run differed from the second in that moist pads were present on both sides, but after the first 5 minutes, a mild acid was added to the pad in corral B just prior to the placement of the light shield.

The data collected during these three runs follows, with corral A on top and corral B on the bottom for the three consecutive runs. The numbers in each cell represent the number of wood lice in each corral.

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