Gulf Coast Tick (Amblyomma maculatum) Populations and Responses to Burning of Coastal Prairie Habitats

Scifres, C. J.; Oldham, Thomas W.; Teel, Pete D.; Drawe, D. Lynn

doi:10.2307/3672088

Cited by 34 publications

(28 citation statements)

References 8 publications

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“…In Texas, summer populations of the Gulf-Coast tick in mesquite-bunchgrass habitat were reduced by fires that occurred in the previous fall or winter (Scifres et al 1988). They reported that more than 75% of ticks were killed when the temperature in the fire-front was >3300 C, and > 60% of fine fuels were consumed.…”

Section: Discussionmentioning

confidence: 98%

Lone Star Tick Abundance, Fire, and Bison Grazing in Tallgrass Prairie

Cully¹

1999

Journal of Range Management

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Section: Discussionmentioning

confidence: 98%

Lone Star Tick Abundance, Fire, and Bison Grazing in Tallgrass Prairie

Cully¹

1999

Journal of Range Management

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“…In particular, prescribed burns to recreate lost grassland habitat have been increasing in recent decades, with the unintended result of creating ideal patches of A. maculatum habitat (Paddock and Goddard 2015). Burned areas are recolonized quickly by A. maculatum , and have even resulted in increased tick populations within a year of a prescribed burn (Scifres et al 1988). Human manipulation may create patches of ideal habitat in which a particular haplotype may establish and thrive for a sufficient amount of time to be picked up by a traveling host and redistributed across the landscape to another suitable spot.…”

Section: Discussionmentioning

confidence: 99%

Comparative population genetics of two invading ticks: Evidence of the ecological mechanisms underlying tick range expansions

Nadolny

Gaff

Carlsson

et al. 2015

Infection, Genetics and Evolution

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Two species of ixodid tick, Ixodes affinis Neumann and Amblyomma maculatum Koch, are simultaneously expanding their ranges throughout the mid-Atlantic region of the US. Although we have some understanding of the ecology and life history of these species, the ecological mechanisms governing where and how new populations establish and persist are unclear. To assess population connectivity and ancestry, we sequenced a fragment of the 16S mitochondrial rRNA gene from a representative sample of individuals of both species from populations throughout the eastern US. We found that despite overlapping host preferences throughout ontogeny, each species exhibited very different genetic and geographic patterns of population establishment and connectivity. Ixodes affinis was of two distinct mitochondrial clades, with a clear geographic break separating northern and southern populations. Both I. affinis populations showed evidence of recent expansion, although the southern population was more genetically diverse, indicating a longer history of establishment. Amblyomma maculatum exhibited diverse haplotypes that showed no significant relationship with geographic patterns and little apparent connectivity between sites. Heteroplasmy was also observed in the 16S mitochondrial rRNA gene in 3.5% of A. maculatum individuals. Genetic evidence suggests that these species rely on different key life stages to successfully disperse into novel environments, and that host vagility, habitat stability and habitat connectivity all play critical roles in the establishment of new tick populations.

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“…The lack of ticks in recently-burned areas is likely to be partly because of ticks being killed directly by the fire and unable to recover in the intervening time (Scrifes et al 1988). It was also notable that the sward height in areas burned the preceding year was extremely low (ca 2 cm; partly as a result of drought conditions that had affected regrowth: ticks (Gray 1991, Fyumagwa et al 2007, Polito et al 2007, del Fabbro et al 2015.…”

Section: Discussionmentioning

confidence: 99%