دورية أكاديمية
Microclimate conditions alter Ixodes scapularis (Acari: Ixodidae) overwinter survival across climate gradients in Maine, United States.
| العنوان: | Microclimate conditions alter Ixodes scapularis (Acari: Ixodidae) overwinter survival across climate gradients in Maine, United States. |
|---|---|
| المؤلفون: | Volk MR; School of Biology and Ecology, University of Maine, 5722 Deering Hall, Orono, ME 04469., Lubelczyk CB; Vector-Borne Disease Laboratory, Maine Medical Center Research Institute, 81 Research Drive, Scarborough, ME 04074., Johnston JC; College of Arts and Sciences, University of Maine at Presque Isle, 181 Main Street, Presque Isle, ME 04769., Levesque DL; School of Biology and Ecology, University of Maine, 5722 Deering Hall, Orono, ME 04469., Gardner AM; School of Biology and Ecology, University of Maine, 5722 Deering Hall, Orono, ME 04469. Electronic address: allison.gardner@maine.edu. |
| المصدر: | Ticks and tick-borne diseases [Ticks Tick Borne Dis] 2022 Jan; Vol. 13 (1), pp. 101872. Date of Electronic Publication: 2021 Nov 19. |
| نوع المنشور: | Journal Article; Research Support, Non-U.S. Gov't |
| اللغة: | English |
| بيانات الدورية: | Publisher: Elsevier Country of Publication: Netherlands NLM ID: 101522599 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1877-9603 (Electronic) Linking ISSN: 1877959X NLM ISO Abbreviation: Ticks Tick Borne Dis Subsets: MEDLINE |
| أسماء مطبوعة: | Original Publication: Amsterdam : Elsevier, 2010- |
| مواضيع طبية MeSH: | Ixodes* , Ixodidae* , Lyme Disease*/epidemiology, Animals ; Maine/epidemiology ; Microclimate ; United States |
| مستخلص: | The incidence and geographic range of vector-borne diseases have been expanding in recent decades, attributed in part to global climate change. Blacklegged ticks (Ixodes scapularis), the primary vector for multiple tick-borne pathogens in North America, are spreading rapidly beyond their historic post-colonial range and are thought to be constrained mainly by winter temperature at northern latitudes. Our research explored whether winter climate currently limits the distribution of blacklegged ticks and the pathogens they transmit in Maine, U.S.A., by contributing to overwinter mortality of nymphs. We experimentally tested tick overwinter survival across large-scale temperature and snowfall gradients and assessed factors contributing to winter mortality in locations where blacklegged tick populations are currently established and locations where the blacklegged tick has not yet been detected. We also tested the hypothesis that insulation in the tick microhabitat (i.e., by leaf litter and snowpack) can facilitate winter survival of blacklegged tick nymphs despite inhospitable ambient conditions. Overwinter survival was not significantly different in coastal southern compared to coastal and inland northern Maine, most likely due to sufficient snowpack that protected against low ambient temperatures at high latitudes. Snow cover and leaf litter contributed significantly to overwinter survival at sites in both southern and northern Maine. To further assess whether the current distribution of blacklegged ticks in Maine aligns with patterns of overwinter survival, we systematically searched for and collected ticks at seven sites along latitudinal and coastal-inland climate gradients across the state. We found higher densities of blacklegged ticks in coastal southern Maine (90.2 ticks/1000 m 2 ) than inland central Maine (17.8 ticks/1000 m 2 ) and no blacklegged ticks in inland northern Maine. Our results suggest that overwinter survival is not the sole constraint on the blacklegged tick distribution even under extremely cold ambient conditions and additional mechanisms may limit the continued northward expansion of ticks. (Copyright © 2021. Published by Elsevier GmbH.) |
| فهرسة مساهمة: | Keywords: Blacklegged tick; Microhabitat; Mortality; Overwinter; Snow |
| تواريخ الأحداث: | Date Created: 20211126 Date Completed: 20220321 Latest Revision: 20220321 |
| رمز التحديث: | 20240513 |
| DOI: | 10.1016/j.ttbdis.2021.101872 |
| PMID: | 34826798 |
| قاعدة البيانات: | MEDLINE |
Full Text Finder | تدمد: | 1877-9603 |
|---|---|
| DOI: | 10.1016/j.ttbdis.2021.101872 |