About
19
Publications
2,472
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
531
Citations
Introduction
Isis M. Arsnoe currently works in the Science and Math Department at Lansing Community College. Isis does research in tick-borne disease ecology. Their current project is 'The Lyme Gradient project'.
Skills and Expertise
Current institution
Publications
Publications (19)
[This corrects the article DOI: 10.1371/journal.pbio.3001066.].
Lyme disease is common in the northeastern United States, but rare in the southeast, even though the tick vector is found in both regions. Infection prevalence of Lyme spirochetes in host-seeking ticks, an important component to the risk of Lyme disease, is also high in the northeast and northern midwest, but declines sharply in the south. As ticks...
Ixodes scapularis is the primary vector of Lyme disease spirochetes in eastern and central North America, and local densities of this tick can affect human disease risk. We sampled larvae and nymphs from sites in Massachusetts and Wisconsin, USA, using flag/drag devices and by collecting ticks from hosts, and measured environmental variables to eva...
Most people who contract Lyme borreliosis in the eastern United States (US) acquire infection from the bite of the nymphal life stage of the vector tick Ixodes scapularis, which is present in all eastern states. Yet <5% of Lyme borreliosis cases are reported from outside the north-central and northeastern US. Geographical differences in nymphal que...
Recent reports suggest that host-seeking nymphs in southern populations of Ixodes scapularis remain below the leaf litter surface, while northern nymphs seek hosts on leaves and twigs above the litter surface. This behavioral difference potentially results in decreased tick contact with humans in the south, and fewer cases of Lyme disease. We studi...
Spreadsheet containing data displayed in Fig 2, Table 3.
(CSV)
Spreadsheet containing data displayed in Fig 3, Table 5.
(CSV)
Experimental vials in humid chamber.
(TIF)
Spreadsheet containing data displayed in Fig 5.
(CSV)
Spreadsheet containing data displayed in Fig 6.
(CSV)
Survival patterns of larval I. scapularis of different ages, from adults originating from Massachusetts, Wisconsin, and Michigan.
Mean proportion of larvae alive at end of experiments (672 hrs) for larvae from same cohorts that were tested twice at different ages. These were larvae whose survival was compared with those of southern populations unde...
Spreadsheet containing data displayed in Fig 1.
(CSV)
Spreadsheet containing data displayed in Fig 4.
(CSV)
Animal behavior can have profound effects on pathogen transmission and disease incidence. We studied the questing (= host-seeking) behavior of blacklegged tick (Ixodes scapularis) nymphs, which are the primary vectors of Lyme disease in the eastern United States. Lyme disease is common in northern but not in southern regions, and prior ecological s...
Although the genetic structure of Ixodes scapularis, the vector of Lyme disease in the eastern U. S., has already been the subject of several studies, none of the published information combines the analysis of maternally inherited (mitochondrial), and bi-parentally inherited (nuclear and microsatellite) markers on the same set of ticks. In addition...
Background
Several investigators have reported genetic differences between northern and southern populations of Ixodes scapularis in North America, as well as differences in patterns of disease transmission. Ecological and behavioral correlates of these genetic differences, which might have implications for disease transmission, have not been repor...
In the northeastern United States, the main vector of Lyme disease is the nymphal life-stage of the blacklegged tick (Ixodes scapularis). For example, the majority of Borrelia burgdorferi-infected ticks removed from humans in northeastern states by the Department of Defense (DoD) Tick Test program are nymphs. Consequently, in these states there is...
The nymphal stage of the blacklegged tick, Ixodes scapularis (Acari: Ixodidae), is responsible for most transmission of Borrelia burgdorferi, the etiologic agent of Lyme disease, to humans in North America. From 2010 to fall of 2012, we compared two commonly used techniques, flagging and dragging, as sampling methods for nymphal I. scapularis at th...
The blacklegged tick (Ixodes scapularis) -- which vectors the causal agents of Lyme disease, human anaplasmosis, human babesiosis, and Powassan virus -- exhibits variation in host-seeking behavior across its geographic range. A reciprocal transplant experiment was conducted to determine whether this difference in behavior is the result of genetic d...
