The Effects of Host Availability and Fitness on Aedes albopictus Blood Feeding Patterns in New York
| Autor: | Elisabeth Martin, Sylvie A. Pitcher, Hannah Rosenthal, Sophia Qu, Kara Fikrig, Kimberly St Fleur, Laura C. Harrington, Sharon Dang, Henry Goldsmith |
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| Rok vydání: | 2022 |
| Předmět: |
Farms
Aedes albopictus Range (biology) Population New York Zoology Context (language use) Mosquito Vectors Article Host-Parasite Interactions Dogs Aedes Opossum Virology Animals Humans Horses education education.field_of_study CATS biology Host (biology) Goats Sciuridae Feeding Behavior Opossums biology.organism_classification Blood meal Rats Suburban Population Infectious Diseases Vector (epidemiology) Cats Female Raccoons Parasitology Rabbits |
| Zdroj: | Am J Trop Med Hyg |
| ISSN: | 1476-1645 0002-9637 |
| DOI: | 10.4269/ajtmh.21-0157 |
| Popis: | Aedes albopictus is a competent vector of numerous pathogens, representing a range of transmission cycles involving unique hosts. Despite the important status of this vector, variation in its feeding patterns is poorly understood. We examined the feeding patterns of Ae. albopictus utilizing resting collections in Long Island, NY, and contextualized blood meal sources with host availability measured by household interviews and camera traps. We identified 90 blood meals, including 29 humans, 22 cats, 16 horses, 12 opossums, 5 dogs, 2 goats, and 1 each of rabbit, rat, squirrel, and raccoon. This is only the third study of Ae. albopictus blood feeding biology that quantitatively assessed domestic host availability and is the first to do so with wild animals. Host feeding indices showed that cats and dogs were fed upon disproportionately often compared with humans. Forage ratios suggested a tendency to feed on cats and opossums and to avoid raccoons, squirrels, and birds. This feeding pattern was different from another published study from Baltimore, where Ae. albopictus fed more often on rats than humans. To understand whether these differences were because of host availability or mosquito population variation, we compared the fitness of New York and Baltimore Ae. albopictus after feeding on rat and human blood. In addition, we examined fitness within the New York population after feeding on human, rat, cat, horse, and opossum blood. Together, our results do not indicate major mosquito fitness differences by blood hosts, suggesting that fitness benefits do not drive Northeastern Ae. albopictus feeding patterns. |
| Databáze: | OpenAIRE |
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