This study determined the effect of temperature on the gonotrophic cycle of Culiseta melanura and developed a thermal heat summation model to calculate its duration under field conditions. A colony of Cs. melanura was used from New Jersey (F13-F17 generation) and the length of the gonotrophic cycle was observed at 2, 10, 16, 22, 28, 32 and 34 degrees C. None of the mosquitos survived at 2 degrees C or 34 degrees C and none laid fertile eggs at 32 degrees C. A linear regression analysis on the data showed that the thermal minimum for ovarian development was 6.4 degrees C and 95.87 degree days were required above 6.4 degrees C to complete one gonotrophic cycle. A thermal heat summation model is presented to allow calculation of the duration of the gonotrophic cycle under field conditions when average temperatures are known.
Download full-text PDF |
Source |
|---|
Publication Analysis
Top Keywords
Similar Publications
Elevated developmental temperatures below the lethal limit reduce Aedes aegypti fertility.
J Exp Biol
January 2025
School of BioSciences, Bio21 Institute, The University of Melbourne, Parkville, Victoria 3010, Australia.
Article Synopsis
- Aedes aegypti mosquitoes are key carriers of dengue, and factors like urbanization, climate change, and trade are affecting their populations.
- Higher temperatures have been shown to impact insect mortality and fertility, with this study focusing on how heat influences the fertility of Ae. aegyti across different generations.
- Results indicated that while mosquitoes can acclimate to heat, their fertility declines with increasing temperatures, affecting both male and female mosquitoes’ ability to reproduce and produce viable offspring, which could impact their populations in warmer climates.
Seasonal life cycle of Pintomyia longiflocosa (Diptera: Psychodidae) under semi-controlled conditions in the Huila state, Colombia.
PLoS Negl Trop Dis
July 2024
Escuela de Ciencias Básicas y Aplicadas, Universidad de La Salle, Bogotá D. C, Colombia.
Background: Pintomyia longiflocosa is considered a vector of etiological agents of cutaneous leishmaniasis. The objective of this research was to establish the parameters of the life cycle of Pi. longiflocosa in semi-controlled conditions in a rural area of the Campoalegre municipality, Huila, Colombia.
View Article and Find Full Text PDFLong-term impacts of egg quiescence and Wolbachia infection on lipid profiles in Aedes aegypti: Ovarian roles in lipid synthesis during reproduction.
J Insect Physiol
September 2024
Pest and Environmental Adaptation Research Group, Bio21 Institute and the School of BioSciences, The University of Melbourne, Parkville, Victoria, Australia.
Wolbachia, an endosymbiotic bacterium, relies on nutrients from its host to complete its life cycle. The presence of Wolbachia strain wAlbB in the mosquito Aedes aegypti during egg or larval stages affects the host's development, leading to the absence of developed and visible ovaries in adult mosquito females. In this study, we investigated the impacts of egg quiescence and Wolbachia infection on lipid profiles of adult Ae.
View Article and Find Full Text PDFEffects of a blood-free mosquito diet on fitness and gonotrophic cycle parameters of laboratory reared Anopheles gambiae sensu stricto.
Parasit Vectors
July 2024
Environmental Health and Ecological Science Department, Ifakara Health Institute-Bagamoyo Office, P.O. Box 74, Bagamoyo, Tanzania.
Background: The current rise of new innovative tools for mosquito control, such as the release of transgenic mosquitoes carrying a dominant lethal gene and Wolbachia-based strategies, necessitates a massive production of mosquitoes in the insectary. However, currently laboratory rearing depends on vertebrate blood for egg production and maintenance. This practice raises ethical concerns, incurs logistical and cost limitations, and entails potential risk associated with pathogen transmission and blood storage.
View Article and Find Full Text PDFBackground: Development of insecticide resistance in the major malaria vectors has necessitated the development of novel vector control tools. One such strategy involves the use of toxic sugar baits that targets the sugar-feeding behaviour of mosquito vectors. In this study, we investigated the potential of polyols, as a toxic food (sugar) source in toxic sugar baits against the malaria vector Anopheles stephensi Liston.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!