Interactions between the invasive Burmese python, Python bivittatus Kuhl, and the local mosquito community in...

Area of Science:

• Ecology
• Invasive Species Biology
• Vector-borne Disease Ecology

Background:

• The Burmese python (Python bivittatus) is an invasive species in Florida's Everglades.
• Ecological impacts of pythons primarily focus on predation, with limited knowledge of other interactions.
• Pythons may serve as hosts for native mosquito populations, influencing disease transmission dynamics.

Purpose of the Study:

• To investigate the host-feeding patterns of native mosquitoes in the presence of invasive Burmese pythons.
• To determine if Burmese pythons are a significant blood meal source for local mosquito communities.
• To assess the potential role of pythons in mosquito-borne pathogen transmission networks.

Main Methods:

• Mitochondrial DNA barcoding (cytochrome c oxidase subunit I) was used to identify blood meal sources.
• Blood-fed mosquitoes were collected from an outdoor research facility housing captive Burmese pythons and Argentine black and white tegus.
• Mosquito blood meal DNA was analyzed to identify vertebrate hosts.

Main Results:

• Python DNA was detected in blood meals of three Culex mosquito species: Culex erraticus, Culex quinquefasciatus, and Culex pilosus.
• Culex erraticus showed a statistically significant preference for feeding on Burmese pythons compared to other available hosts.
• The majority of identified blood meals were from Burmese pythons, with only one from the Argentine black and white tegu.

Conclusions:

• Native mosquitoes readily feed on invasive Burmese pythons, establishing a new host-parasite interaction.
• This interaction suggests that invasive pythons could become involved in the transmission cycles of mosquito-borne pathogens in Florida.
• Screening mosquito blood meals for python DNA offers a potential method for detecting the presence of invasive pythons in the wild.