scholarly journals Recent and rapid population growth and range expansion of the Lyme disease tick vector,Ixodes scapularis, in North America

Evolution ◽  
2015 ◽  
Vol 69 (7) ◽  
pp. 1678-1689 ◽  
Author(s):  
Camilo E. Khatchikian ◽  
Melissa A. Prusinski ◽  
Melissa Stone ◽  
Peter Bryon Backenson ◽  
Ing-Nang Wang ◽  
...  
Keyword(s):  
North America ◽  
Lyme Disease ◽  
Population Growth ◽  
Range Expansion ◽  
Ixodes Scapularis ◽  
Rapid Population Growth ◽  
Tick Vector

scholarly journals Gut Microbiota of the Tick Vector Ixodes scapularis Modulate Colonization of the Lyme Disease Spirochete

2014 ◽  
Vol 15 (1) ◽  
pp. 58-71 ◽  
Author(s):  
Sukanya Narasimhan ◽  
Nallakkandi Rajeevan ◽  
Lei Liu ◽  
Yang O. Zhao ◽  
Julia Heisig ◽  
...  
Keyword(s):  
Lyme Disease ◽  
Gut Microbiota ◽  
Ixodes Scapularis ◽  
Tick Vector

scholarly journals Implications of climate change on the distribution of the tick vector Ixodes scapularis and risk for Lyme disease in the Texas-Mexico transboundary region

2014 ◽  
Vol 7 (1) ◽  
pp. 199 ◽  
Author(s):  
Teresa P Feria-Arroyo ◽  
Ivan Castro-Arellano ◽  
Guadalupe Gordillo-Perez ◽  
Ana L Cavazos ◽  
Margarita Vargas-Sandoval ◽  
...  
Keyword(s):  
Climate Change ◽  
Lyme Disease ◽  
Ixodes Scapularis ◽  
Tick Vector

The effect of infection with Lyme disease spirochetes (Borrelia burgdorferi) on the phototaxis, activity, and questing height of the tick vector Ixodes scapularis

Parasitology ◽  
1996 ◽  
Vol 113 (2) ◽  
pp. 97-103 ◽  
Author(s):  
H. Lefcort ◽  
L. A. Durden
Keyword(s):  
Lyme Disease ◽  
Borrelia Burgdorferi ◽  
Kin Selection ◽  
Ixodes Scapularis ◽  
Bacterial Pathogen ◽  
Pathogen Transmission ◽  
Ecological Effects ◽  
Infected Tick ◽  
Tick Vector ◽  
Tick Vectors

SUMMARYLittle is known about the effects of infection with Borrelia burgdorferi, the bacterium that causes Lyme disease, on its tick vectors. The purpose of this study was to determine the behavioural and ecological effects of infection by the bacterium in nymphal and adult black-legged (Ixodes scapularis) ticks. We found that the effects of infection were more pronounced in adults than in nymphs. Compared to uninfected adults, infected adults were less able to overcome physical obstacles, avoided vertical surfaces, were less active and quested at lower heights. Infected nymphs showed increased phototaxis and attraction to vertical surfaces. Infected nymphs also showed trends toward increased questing height and a greater tendency to overcome physical obstacles although these trends were not statistically significant. These altered behaviours in an infected tick may affect survival or pathogen transmission and may reflect kin selection in the bacterial pathogen.

scholarly journals Risk maps for range expansion of the Lyme disease vector, Ixodes scapularis, in Canada now and with climate change

2008 ◽  
Vol 7 (1) ◽  
pp. 24 ◽  
Author(s):  
Nicholas H Ogden ◽  
Laurie St-Onge ◽  
Ian K Barker ◽  
Stephanie Brazeau ◽  
Michel Bigras-Poulin ◽  
...  
Keyword(s):  
Climate Change ◽  
Lyme Disease ◽  
Range Expansion ◽  
Ixodes Scapularis ◽  
Disease Vector ◽  
Risk Maps

Climate change and the potential for range expansion of the Lyme disease vector Ixodes scapularis in Canada

2006 ◽  
Vol 36 (1) ◽  
pp. 63-70 ◽  
Author(s):  
N.H. Ogden ◽  
A. Maarouf ◽  
I.K. Barker ◽  
M. Bigras-Poulin ◽  
L.R. Lindsay ◽  
...  
Keyword(s):  
Climate Change ◽  
Lyme Disease ◽  
Range Expansion ◽  
Ixodes Scapularis ◽  
Disease Vector

scholarly journals Genomic insights into the Ixodes scapularis tick vector of Lyme disease

2016 ◽  
Vol 7 (1) ◽  
Author(s):  
Monika Gulia-Nuss ◽  
Andrew B. Nuss ◽  
Jason M. Meyer ◽  
Daniel E. Sonenshine ◽  
R. Michael Roe ◽  
...  
Keyword(s):  
Lyme Disease ◽  
Ixodes Scapularis ◽  
Tick Vector

scholarly journals The fungal alkaloid Okaramine-B activates an L-glutamate-gated chloride channel from Ixodes scapularis, a tick vector of Lyme disease

2018 ◽  
Vol 8 (2) ◽  
pp. 350-360 ◽  
Author(s):  
Shogo Furutani ◽  
Makoto Ihara ◽  
Kristin Lees ◽  
Steven D. Buckingham ◽  
Frederick A. Partridge ◽  
...  
Keyword(s):  
Lyme Disease ◽  
Chloride Channel ◽  
Ixodes Scapularis ◽  
Tick Vector

Geographic Uniformity of the Lyme Disease Spirochete (Borrelia burgdorferi) and Its Shared History With Tick Vector (Ixodes scapularis) in the Northeastern United States

Genetics ◽  
2002 ◽  
Vol 160 (3) ◽  
pp. 833-849
Author(s):  
Wei-Gang Qiu ◽  
Daniel E Dykhuizen ◽  
Michael S Acosta ◽  
Benjamin J Luft
Keyword(s):  
United States ◽  
Genetic Structure ◽  
Lyme Disease ◽  
Borrelia Burgdorferi ◽  
Ixodes Scapularis ◽  
Balancing Selection ◽  
Natural Populations ◽  
The United States ◽  
High Genetic Diversity ◽  
Tick Vector

Abstract Over 80% of reported cases of Lyme disease in the United States occur in coastal regions of northeastern and mid-Atlantic states. The genetic structure of the Lyme disease spirochete (Borrelia burgdorferi) and its main tick vector (Ixodes scapularis) was studied concurrently and comparatively by sampling natural populations of I. scapularis ticks along the East Coast from 1996 to 1998. Borrelia is genetically highly diverse at the outer surface protein ospC. Since Borrelia is highly clonal, the ospC alleles can be used to define clones. A newly designed reverse line blotting (RLB) assay shows that up to 10 Borrelia clones can infect a single tick. The clone frequencies in Borrelia populations are the same across the Northeast. On the other hand, I. scapularis populations show strong regional divergence (among northeastern, mid-Atlantic, and southern states) as well as local differentiation. The high genetic diversity within Borrelia populations and the disparity in the genetic structure between Borrelia and its tick vector are likely consequences of strong balancing selection on local Borrelia clones. Demographically, both Borrelia and I. scapularis populations in the Northeast show the characteristics of a species that has recently expanded from a population bottleneck. Major geological and ecological events, such as the last glacial maximum (18,000 years ago) and the modern-day expansion of tick habitats, are likely causes of the observed “founder effects” for the two organisms in the Northeast. We therefore conclude that the genetic structure of B. burgdorferi has been intimately shaped by the natural history of its main vector, the northern lineage of I. scapularis ticks.

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