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Biology Faculty Publications and Presentations

2020

Texas

Articles 1 - 2 of 2

Full-Text Articles in Life Sciences

Partial Characterization Of The Voltage-Gated Sodium Channel Gene And Molecular Detection Of Permethrin Resistance In Rhipicephalus Annulatus (Say, 1821), Guilherme M. Klafke, Hannah C. Moreno, Jason Tidwell, Robert J. Miller, Teresa Patricia Feria-Arroyo, Adalberto A. Pérez De León May 2020

Partial Characterization Of The Voltage-Gated Sodium Channel Gene And Molecular Detection Of Permethrin Resistance In Rhipicephalus Annulatus (Say, 1821), Guilherme M. Klafke, Hannah C. Moreno, Jason Tidwell, Robert J. Miller, Teresa Patricia Feria-Arroyo, Adalberto A. Pérez De León

Biology Faculty Publications and Presentations

Highlights

  • Rhipicephalus annulatus tick is an important vector of diseases to cattle.

  • Pyrethroid resistance was detected in a field population of R. annulatus in the USA.

  • Fragments of the voltage-gated sodium channel gene of R. annulatus were sequenced.

  • A qPCR-HRM was adapted to detect pyrethroid-resistant mutations in R. annulatus.

Abstract

The cattle tick, Rhipicephalus annulatus (Say) is a vector of bovine babesiosis and responsible for direct and indirect losses to cattle producing areas located in temperate and subtropical dry regions. Resistance against pyrethroids has been reported for this species in Asia and Africa, but never before in North America. …


Terrestrial Snail Communities Of The Lower Rio Grande Valley Are Affected By Human Disturbance And Correlate With Vegetation Community Composition, Briante S. Lewis Najev, Alison Schofield, Raziel I. Flores, Benjamin T. Hutchins, J. Andrew Mcdonald, Kathryn E. Perez Jan 2020

Terrestrial Snail Communities Of The Lower Rio Grande Valley Are Affected By Human Disturbance And Correlate With Vegetation Community Composition, Briante S. Lewis Najev, Alison Schofield, Raziel I. Flores, Benjamin T. Hutchins, J. Andrew Mcdonald, Kathryn E. Perez

Biology Faculty Publications and Presentations

The lower Rio Grande Valley of Texas (LRGV) contains a unique, subtropical, semiarid floodplain with most of the few remaining Tamaulipan thorn forests in the United States. Less than 2% of Tamaulipan thorn forest remains, with urban and agricultural conversion potentially threatening diverse plant and animal communities native to the habitat. We performed vegetative community surveys and conducted a comprehensive survey of terrestrial snail communities in intact (refugia sites, minimally altered in recent times) and altered (previously cleared and regrown or restored) Tamaulipan thorn forest habitats of the LRGV. In a comparison of intact and altered sites that have comparable …