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1 March 2004 Seasonal Changes in Abundance of Host-Seeking Chiggers (Acari: Trombiculidae) and Infestations on Fence Lizards, Sceloporus undulatus
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Abstract

Eastern Fence Lizards (Sceloporus undulatus) in middle Tennessee are commonly parasitized by chiggers (Acari: Trombiculidae), but little is known about the ecological significance of this host-parasite system. Thus, I sampled S. undulatus and their habitats monthly to determine the seasonal pattern in chigger abundance and infestation intensity. Chigger abundance was low (mean = 1.8 chiggers) in the spring (April and May), eightfold higher throughout the summer, and declined sixfold in the fall (September and October). In general, infestation intensities on S. undulatus (males, females, and juveniles) followed the same pattern except that mean infestation intensity of males declined during the summer in spite of persistently high chigger abundance. The results of this study suggest that seasonal changes in chigger abundance are a major factor influencing infestation intensities on S. undulatus.

Matthew Klukowski "Seasonal Changes in Abundance of Host-Seeking Chiggers (Acari: Trombiculidae) and Infestations on Fence Lizards, Sceloporus undulatus," Journal of Herpetology 38(1), 141-144, (1 March 2004). https://doi.org/10.1670/127-03N
Accepted: 1 November 2003; Published: 1 March 2004
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