Publications by authors named "Kim Lohmeyer"
White-tailed deer () serve as a host for cattle fever ticks ( [] and [] ; CFTs); therefore, deer are a concern for CFT control programs in southern Texas, US. Systemic (oral delivery of ivermectin) and topical (permethrin on pelage) treatment devices have been developed for white-tailed deer; however, the efficacy of these treatment options has not been determined for CFTs in southern Texas. Our objectives were to evaluate the effectiveness of CFT treatment strategies by 1) measuring exposure rates of deer to the acaricides permethrin and ivermectin, 2) determining the relationship between CFTs on deer and exposure to the acaricides, and 3) determining if photos from remote cameras at medicated bait sites can be used as a measure of acaricide treatment.
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- Lipids from the lone star tick, Amblyomma americanum, were analyzed using high resolution mass spectrometry, focusing on differences between unfed and fed ticks (on cattle) and their sex combinations.
- Notable findings included cholesteryl esters and high levels of specific fatty acids on fed females, implying roles in sex pheromones and survival.
- Additional lipids like sphingolipids were associated with sperm development in males, while wax esters, present only in fed ticks, may aid in egg coating or the cuticle elasticity of engorged females.
Article Synopsis
- Proteomic analysis focused on the fore tarsi and palps of the lone star tick, revealing distinct proteins compared to the third tarsi.
- The fore tarsi express unique proteins, including a lipocalin and odorant-binding proteins, suggesting specialized chemosensory functions.
- Findings also indicate differential expression patterns in male and female ticks, highlighting new avenues for research into tick chemosensory reception.