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ANALYSIS OF THE SYSTEMATIC RELATIONSHIPS AMONG TICKS OF THE GENERA RHIPICEPHALUS AND BOOPHILUS (ACARI: IXODIDAE) BASED ON MITOCHONDRIAL 12S RIBOSOMAL DNA GENE SEQUENCES AND MORPHOLOGICAL CHARACTERS
- L. Beati, J. E. Keirans
- BiologyJournal of Parasitology
- 1 February 2001
A portion of mitochondrial 12S rDNA sequences (337–355 base pairs) and 63 morphological characters of 36 hard-tick species belonging to 7 genera were analyzed to determine the phylogenetic…
Ticks of Venezuela (Acarina: Ixodoidea) with a key to the species of Ambiyomma in the western hemisphere
- E. Jones, C. M. Clifford, J. E. Keirans, G. Kohls
- Biology
- 1972
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Population genetics of Ixodes scapularis (Acari: Ixodidae) based on mitochondrial 16S and 12S genes.
- D. E. Norris, J. Klompen, J. E. Keirans, W. Black
- BiologyJournal of medical entomology
- 1996
Analysis of sequence variation in the 16S and 12S mitochondrial ribosomal DNA genes suggests that I. scapularis arose in the South but that a large geographic split gave rise to 2 distinct lineages now interbreed and are partially sympatric.
The Argasidae, Ixodidae and Nuttalliellidae (Acari: Ixodida): A World List of Valid Tick Names
- I. Horak, J. Camicas, J. E. Keirans
- BiologyExperimental & applied acarology
- 2004
The world's argasid tick fauna comprises 183 species in four genera, namely Argas, Carios, Ornithodoros and Otobius in the family Argasidae and the genus Boophilus becoming a subgenus of the genus Rhipicephalus.
Ixodes (Ixodes) scapularis (Acari:Ixodidae): redescription of all active stages, distribution, hosts, geographical variation, and medical and veterinary importance.
- J. E. Keirans, H. J. Hutcheson, L. Durden, J. Klompen
- BiologyJournal of medical entomology
- 1 May 1996
The blacklegged tick, Ixodes (Ixodes) scapularis Say, 1821, is redescribed, based on laboratory reared specimens originating in Bulloch County, Georgia. Information on distribution, host…
Systematics and Biogeography of Hard Ticks, a Total Evidence Approach
- J. Klompen, W. C. Black, J. E. Keirans, D. Norris
- Biology
- 1 March 2000
The distribution pattern of endemic Australian taxa suggests that these lineages, and by extension the Ixodidae, originated after the isolation of Australia in the late Cretaceous, much more recently than previously indicated.
Evolution of ticks.
- J. Klompen, W. Black, J. E. Keirans, J. Oliver
- Biology, Environmental ScienceAnnual Review of Entomology
- 1996
An analysis of tick-host and -habitat associations and biogeographical patterns, in the context of the newly derived phylogenies, suggests that much of the existing host-association patterns may be explained as artifacts of biogeography and ecological specificity.
Nymphs of the genus Ixodes (Acari: Ixodidae) of the United States: taxonomy, identification key, distribution, hosts, and medical/veterinary importance.
- L. Durden, J. E. Keirans
- Biology
- 1996
The genus Ixodes in the United States: a scanning electron microscope study and key to the adults.
- J. E. Keirans, C. Clifford
- BiologyJournal of medical entomology. Supplement
- 1 July 1978
A scanning electron microscope study of adults of the genus Ixodes found in the United States is presented. Keys are given to the females of 35 species and males of 30 species. Host and…
Distribution, Seasonality, and Hosts of the Rocky Mountain Wood Tick in the United States
- A. James, J. Freier, J. E. Keirans, L. Durden, J. W. Mertins, J. Schlater
- Environmental ScienceJournal of medical entomology
- 2006
A centralized geographic database is developed that incorporates collection records for D. andersoni from two large national databases and reviews the geographic records in each database and postings from MEDLINE and AGRICOLA to produce a national county-level distribution map.
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