Arthiyan, Sivasingham; Eswaramohan, Thampoe; Hemphill, Andrew; Surendran, Sinnathamby Noble (2024). Predatory Potential of Nymphal Odonates on Aedes aegypti Developing in Freshwater and Brackish Water Habitats. Insects, 15(7) MDPI 10.3390/insects15070547
|
Text
insects-15-00547-v2.pdf - Published Version Available under License Creative Commons: Attribution (CC-BY). Download (1MB) | Preview |
Aedes aegypti, the primary vector of dengue, undergoes preimaginal development in brackish water (BW). However, dengue vector control exclusively targets freshwater (FW) habitats. The present study evaluated the predatory efficacy of nymphal odonates that can develop in both FW and BW. Nymphs of three damselfly and three dragonfly species from FW and BW habitats were identified and acclimatized to FW (<0.5 gL-1 salt) and BW (10 gL-1 salt) mesocosm conditions. The experiment was repeated nine times with nine different individual predators per species under both salinity conditions. One hundred L3 Ae. aegypti from FW and BW laboratory colonies were introduced to determine the predatory rate (PR) and clearance rate (CR) after 24, 48, and 72 h, and one hundred L3 larvae were introduced every 24 h. The dragonfly nymph Hydrobasileus croceus and the damselfly nymph Paracercion hieroglyphicum showed the highest PR and CR under both rearing conditions at all times. However, damselfly and dragonfly nymphs significantly (p < 0.05) differed in their CR under both FW and BW conditions. Thus, all six odonate species have predatory potential and this suggests that they could be used as biological control agents to eliminate preimaginal stages of Ae. aegypti developing in both FW and BW habitats.
Item Type: |
Journal Article (Original Article) |
|---|---|
Division/Institute: |
05 Veterinary Medicine > Department of Infectious Diseases and Pathobiology (DIP) > Institute of Parasitology 05 Veterinary Medicine > Department of Infectious Diseases and Pathobiology (DIP) |
UniBE Contributor: |
Hemphill, Andrew |
Subjects: |
600 Technology > 630 Agriculture |
ISSN: |
2075-4450 |
Publisher: |
MDPI |
Language: |
English |
Submitter: |
Pubmed Import |
Date Deposited: |
29 Jul 2024 10:49 |
Last Modified: |
29 Jul 2024 10:59 |
Publisher DOI: |
10.3390/insects15070547 |
PubMed ID: |
39057279 |
Uncontrolled Keywords: |
Sri Lanka biological control clearance rate of predator dengue vector control predatory rate |
BORIS DOI: |
10.48350/199290 |
URI: |
https://boris.unibe.ch/id/eprint/199290 |
Actions (login required)
 |
Edit item |