Predicting the speed of tick invasion: an empirical model of range expansion for the Lyme disease vector Ixodes scapularis in Canada

@article{Leighton2012PredictingTS,
  title={Predicting the speed of tick invasion: an empirical model of range expansion for the Lyme disease vector Ixodes scapularis in Canada},
  author={Patrick A Leighton and Jules K. Koffi and Yann Pelcat and L. Robbin Lindsay and Nicholas H. Ogden},
  journal={Journal of Applied Ecology},
  year={2012},
  volume={49},
  pages={457-464}
}
Summary 1. Over the past two decades, Ixodes scapularis, the primary tick vector of the Lyme disease pathogen Borrelia burgdorferi in North America has expanded its range northward from the USA to colonize new regions in southern Canada. We have previously projected range increases for I. scapularis based on temperature suitability, but to what extent this is matched by actual tick range expansion is unknown. 2. Since 1990, I. scapularis ticks have been collected across Canada offering a unique… 

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References

SHOWING 1-10 OF 44 REFERENCES

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

TLDR
Validation of the risk maps provides some confidence that they provide a useful first step in predicting the occurrence of I. scapularis populations, and directing public health objectives in minimizing risk from Lyme disease.

A Dispersal Model for the Range Expansion of Blacklegged Tick (Acari: Ixodidae)

TLDR
This simulation of the expansion of a theoretical tick population across a simple landscape by using a deterministic, spatially explicit, cellular automata model suggests that hosts with high tick burdens and large home ranges play a critical role in I. scapularis range expansion.

Passive Surveillance for I. scapularis Ticks: Enhanced Analysis for Early Detection of Emerging Lyme Disease Risk

TLDR
This study suggests that Alert Maps created using a logistic regression model based on the number of ticks submitted in passive surveillance and a model-derived environmental suitability index can provide a usefully rapid and accurate tool for early identification of emerging areas of LD risk at a geographic scale appropriate for local disease control and prevention activities.

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

Role of bird migration in the long-distance dispersal of Ixodes dammini, the vector of Lyme disease.

To evaluate the role of migratory birds in the long-distance dispersal of Ixodes dammini ticks and in the spread of Lyme disease, a 6-year study of migrating birds to an offshore New England island

Geographic uniformity of the Lyme disease spirochete (Borrelia burgdorferi) and its shared history with tick vector (Ixodes scapularis) in the Northeastern United States.

TLDR
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, which are likely causes of the observed "founder effects" for the two organisms in the Northeast.

Field and climate-based model for predicting the density of host-seeking nymphal Ixodes scapularis, an important vector of tick-borne disease agents in the eastern United States

TLDR
Climate and field sampling data are used to generate a predictive map of the density of host-seeking I. scapularis nymphs that can be used by the public, physicians and public health agencies to assist with the diagnosis and reporting of disease, and to better target disease prevention and control efforts.

Ixodes scapularis Ticks Collected by Passive Surveillance in Canada: Analysis of Geographic Distribution and Infection with Lyme Borreliosis Agent Borrelia burgdorferi

TLDR
The study suggests that B. burgdorferi-infected I. scapularis can be found over a wide geographic range in Canada, although most may be adventitious ticks carried from endemic areas in the United States and Canada by migrating birds.

Phylogeography of Borrelia burgdorferi in the eastern United States reflects multiple independent Lyme disease emergence events

TLDR
Estimates of the time scale of divergence of northeastern and midwestern populations suggest that B. burgdorferi was present in these regions of North America many thousands of years before European settlements.

Increasing habitat suitability in the United States for the tick that transmits Lyme disease: a remote sensing approach.

TLDR
A modeling approach used the recorded, current distribution of this tick and remotely sensed bioclimatic factors over the United States to establish the changes of habitat for this tick since 1982 and to detect the areas with factors adequate to support tick colonization.