The Overwintering in Massachusetts of
            <i>Ixodiphagus caucurtei</i>

Larrousse, F.; King, Arthur G.; Wolbach, S. B.

doi:10.1126/science.67.1735.351

Cited by 34 publications

(26 citation statements)

References 1 publication

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“…The phylogeography of Borrelia burgdorferi suggests a wide prehistoric distribution that was reduced to localized refugia in the 19th and early 20th century by deforestation and unregulated deer hunting (28). The earliest records of I. scapularis in North America come from the 1920s for Naushon Island, MA (34), and the 1960s for Wisconsin (30); these areas may represent refugial foci from which deer, ticks, and tick-borne disease are expanding into the United States. This may explain the DTV foci and suggests the virus will spread beyond these localized areas.…”

Section: Resultsmentioning

confidence: 99%

Revisiting the Clinal Concept of Evolution and Dispersal for the Tick-Borne Flaviviruses by Using Phylogenetic and Biogeographic Analyses

Heinze

Gould

Forrester

2012

J Virol

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b Tick-borne flaviviruses (TBF) are widely dispersed across Africa, Europe, Asia, Oceania, and North America, and some present a significant threat to human health. Seminal studies on tick-borne encephalitis viruses (TBEV), based on partial envelope gene sequences, predicted a westward clinal pattern of evolution and dispersal across northern Eurasia, terminating in the British Isles. We tested this hypothesis using all available full-length open reading frame (ORF) TBF sequences. Phylogenetic analysis was consistent with current reports. However, linear and nonlinear regression analysis of genetic versus geographic distance combined with BEAST analysis identified two separate clines, suggesting that TBEV spread both east and west from a central point. In addition, BEAST analysis suggested that TBF emerged and dispersed more than 16,000 years ago, significantly earlier than previously predicted. Thus, climatic and ecological changes may have played a greater role in TBF dispersal than humans.

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Section: Resultsmentioning

confidence: 99%

Revisiting the Clinal Concept of Evolution and Dispersal for the Tick-Borne Flaviviruses by Using Phylogenetic and Biogeographic Analyses

Heinze

Gould

Forrester

2012

J Virol

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“…Although this wasp has been considered for the biological control of ticks for approximately 100 years, its efficacy is still debated (e.g. Larousse et al. 1928; Walter 1980; Mwangi et al.…”

Section: Introductionmentioning

confidence: 99%

“…Although this wasp has been considered for the biological control of ticks for approximately 100 years, its efficacy is still debated (e.g. Larousse et al 1928;Walter 1980;Mwangi et al 1997;Knipling and Steelman 2000). Besides, there are still considerable gaps of knowledge about the biology of I. hookeri, and the existing data were mostly obtained in Kenya and the United States.…”

Section: Introductionmentioning

confidence: 99%

A hidden beneficial: biology of the tick-wasp Ixodiphagus hookeri in Germany

Collatz

Selzer

Fuhrmann

et al. 2011

Journal of Applied Entomology

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The parasitic wasp Ixodiphagus hookeri parasitizes hard ticks and is therefore considered as a potential candidate for biological control of ticks. However, there are still considerable gaps of knowledge about the biology of I. hookeri, especially for European populations. Thus, the present study was performed to assess important life‐history parameters of the parasitoid in Germany. Field studies accomplished in three successive years revealed that unfed Ixodes ricinus nymphs are infested by the parasitoid at a low but constant rate of 1.9–3.8% and that adult wasps are present only during a short period in late summer. The mean developmental time of wasps in I. ricinus nymphs ranged from 28 to 70 days under constant laboratory conditions and was prolonged in the second half of the year. Bioassays on parasitization and host preference behaviour showed that unfed nymphs of the host species I. ricinus are significantly preferred in experiments, in which unfed and engorged larvae as well as fully engorged nymphs were offered as alternatives. The marsh tick Dermacentor reticulatus was not accepted as an alternative host. Our data show that the investigated I. hookeri populations differ markedly from populations in other regions of the world in many aspects. The adaptation of different strains to local conditions explains the limited success of imported strains in earlier biological control attempts and highlights the importance of doing research to enhance the control potential of native strains.

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“…The earliest collections of I. scapularis from the Northeast were made in the 1920s on Naushon Island, near Cape Cod, Massachusetts (19). With the return of white-tailed deer to other areas of the Northeast and Midwest, the range of I. scapularis began expanding.…”

mentioning

confidence: 99%

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

Hoen

Margos

Bent

et al. 2009

Proc. Natl. Acad. Sci. U.S.A.

151

179

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Since its first description in coastal Connecticut in 1976, both the incidence of Lyme disease and the geographic extent of endemic areas in the US have increased dramatically. The rapid expansion of Lyme disease into its current distribution in the eastern half of the US has been due to the range expansion of the tick vector, Ixodes scapularis, upon which the causative agent, Borrelia burgdorferi is dependent for transmission to humans. In this study, we examined the phylogeographic population structure of B. burgdorferi throughout the range of I. scapularis-borne Lyme disease using multilocus sequence typing based on bacterial housekeeping genes. We show that B. burgdorferi populations from the Northeast and Midwest are genetically distinct, but phylogenetically related. Our findings provide strong evidence of prehistoric population size expansion and east-to-west radiation of descendent clones from founding sequence types in the Northeast. 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. We conclude that B. burgdorferi populations have recently reemerged independently out of separate relict foci, where they have persisted since precolonial times.geography ͉ phylogeny ͉ ticks ͉ multilocus sequence typing

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The Overwintering in Massachusetts of Ixodiphagus caucurtei

Cited by 34 publications

References 1 publication

Revisiting the Clinal Concept of Evolution and Dispersal for the Tick-Borne Flaviviruses by Using Phylogenetic and Biogeographic Analyses

Revisiting the Clinal Concept of Evolution and Dispersal for the Tick-Borne Flaviviruses by Using Phylogenetic and Biogeographic Analyses

A hidden beneficial: biology of the tick-wasp Ixodiphagus hookeri in Germany

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

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