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Effects of Temperature on Mosquito Larvae Presence in Different Container Types of Varee Chiang Mai School, Mueang District, Chiang Mai

Organization(s):Varee Chiangmai school
Country:Thailand
Student(s):Cheuk hin lee Chuwen Li Hayul Kim Sayamine Kanta Yana Lim
Grade Level:Upper Primary (grades 3-5, ages 8-11)
GLOBE Member(s):Titthayaporn Kaewpingmaung
Contributors:Ms. Kingkanok Yodwiset Ms. Kritsana Ounanta Mr. Accadech Chaimoolthan
Report Type(s):Virtual Science Symposium Report, Mission Mosquito Report
Protocols:Mosquitoes
Presentation Video: View Video
Presentation Poster: View Document
Language(s):English
Date Submitted:2026-01-28
This cover image represents a student research project titled “Effects of Temperature on Mosquito Larvae Presence in Different Container Types of Varee Chiang Mai School, Mueang District, Chiang Mai.” The design highlights scientific inquiry and environmental awareness through images of students actively participating in fieldwork and laboratory investigations, such as collecting water samples, observing mosquito larvae, and using microscopes. The presence of The GLOBE Program and Varee Chiang Mai School logos emphasizes the academic and international nature of the project. A student presenter in school uniform appears on the right side, symbolizing student leadership and communication of scientific findings. The use of mosquito illustrations and a soft green background reflects the study’s focus on ecology, public health, and environmental science. Overall, the cover conveys hands-on learning, teamwork, and the importance of understanding environmental factors related to mosquito-borne diseases.
The objectives of this research were to investigate the effect of water temperature on mosquito larval density, to compare mosquito larvae species found within the vicinity of Varee Chiangmai School, Mueang District, Chiang Mai Province, and to disseminate the findings to the school and surrounding communities. The study area was confined to the grounds of Varee Chiangmai School. Mosquito larvae were collected once a week, every Thursday, over a five-week period from November 13 to December 11, 2025. The collected larvae were examined using a stereo microscope to identify morphological characteristics. Specimens were placed in Petri dishes with a small amount of water to facilitate clear observation, and morphological data were recorded using the GLOBE Mosquito Habitat Mapper application. Water temperature was measured using a thermometer attached to a string to avoid interference from body heat. The results showed that water temperatures ranged from 20.5°C to 22.8°C, with the highest mosquito larval density observed at temperatures between 21.8°C and 22.5°C. A total of 1,539 mosquito larvae were recorded, with Culex being the most prevalent species (39.44%), followed by Aedes aegypti (29.76%), Anopheles (18.33%), and Mansonia (12.47%). The Container Index (CI) was calculated to be 3.52%, indicating a low-risk level of mosquito breeding in the study area. Overall, the findings demonstrate a positive relationship between water temperature and mosquito larval abundance. Although water temperature influenced larval density, the relatively low CI suggests that environmental management and sanitation measures in the study area are effective. However, continued surveillance and source reduction are recommended to prevent potential increases in mosquito populations and reduce the risk of dengue transmission.


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