Effects of Early Contact with Maternal Parent on Locomotor Activity and Exploratory Behavior in Spiderlings of Hogna carolinensis (Araneae: Lycosidae) |
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Authors: | F Punzo J Alvarez |
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Institution: | (1) Department of Biology, University of Tampa, Box 5F, 401 W. Kennedy Blvd., Tampa, Florida, 33606;(2) 1345 Rolling Hills Dr., St. Charles, Missouri, 60716 |
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Abstract: | In this study we investigated the effect of rearing conditions (stimulus complexity) on the locomotor activity and exploratory behavior of spiderlings of Hogna carolinensis in a novel open field arena. Experimental groups consisted of spiderlings that were allowed to remain with their maternal parent for 1 day (group 1), 3 days (group 2), and 5 days (group 3) after emergence from their egg sacs, and those who had no contact (group 4) with a maternal parent. Spiderlings that had physical contact with their mothers for 3 and 5 days required significantly less time to enter the arena, to reach the central grid area of the arena, and for an initial return to the start box than spiderlings in groups 1 and 4. In addition, spiderlings in groups 2 and 3 exhibited a significantly greater number of grid crossings as compared to groups 1 and 4, and spent more time in the arena. This is the first demonstration that environmental complexity, in the form of a social factor such as physical contact with a maternal parent, can affect the subsequent behavior of spiderlings. |
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Keywords: | early experience exploratory behavior spiderlings Hogna |
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