| ecological niche modeling of lyme disease in british columbia, canada. | the purpose of this study was to describe the geographic distribution and model the ecological niche for borrelia burgdorferi (johnson, schmidt, hyde, steigerwaldt & brenner), ixodes pacificus (cooley & kohls), and ixodes angustus (neumann), the bacterium and primary tick vectors for lyme disease, in british columbia (bc), canada. we employed a landscape epidemiology approach using geographic information systems mapping and ecological niche modeling (genetic algorithm for rule-set prediction) to ... | 2010 | 20180315 |
| migratory songbirds disperse ticks across canada, and first isolation of the lyme disease spirochete, borrelia burgdorferi, from the avian tick, ixodes auritulus. | during a 3-yr comprehensive study, 196 ixodid ticks (9 species) were collected from 89 passerine birds (32 species) from 25 localities across canada to determine the distribution of avian-associated tick species and endogenous lyme disease spirochetes, borrelia burgdorferi johnson, schmid, hyde, steigerwalt, and brenner. we report the following first records of tick parasitism on avian hosts: the rabbit-associated tick, ixodes dentatus marx, from manitoba and ontario; the mouse tick, ixodes muri ... | 2005 | 17089744 |
| mitochondrial dna sequence variation in ixodes pacificus (acari: ixodidae). | the western black-legged tick, ixodes pacificus, is a primary vector of the spirochaete, borrelia burgdorferi, that causes lyme disease. we used variation in a 355-bp dna portion of the mitochondrial cytochrome oxidase iii gene to assess the population structure of the tick across its range from british columbia to southern california and east to utah. ixodes pacificus showed considerable haplotype diversity despite low nucleotide diversity. maximum parsimony and isolation-by-distance analyses r ... | 1999 | 10583539 |