Elevated developmental temperatures below the lethal limit reduce Aedes aegypti fertility

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077344%3A_____%2F25%3A00644835" target="_blank" >RIV/60077344:_____/25:00644835 - isvavai.cz</a>

Alternative codes found

RIV/60076658:12310/25:43910114

Result on the web

<a href="https://doi.org/10.1242/jeb.249803" target="_blank" >https://doi.org/10.1242/jeb.249803</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1242/jeb.249803" target="_blank" >10.1242/jeb.249803</a>

Result language

angličtina

Original language name

Elevated developmental temperatures below the lethal limit reduce Aedes aegypti fertility

Original language description

Aedes aegypti mosquitoes are the principal vectors of dengue and continue to pose a threat to human health, with ongoing urbanization, climate change and trade all impacting the distribution and abundance of this species. Hot periods are becoming increasingly common and their impacts on insect mortality have been well established, but they may have even greater impacts on insect fertility. In this study, we investigated the impacts of high temperatures on Ae. aegypti fertility both within and across generations. Mosquitoes developing under elevated temperatures exhibited higher critical thermal maxima (CTmax), reflecting developmental acclimation, but their fertility declined with increasing developmental temperature. In females, elevated developmental temperatures decreased fecundity while in males it tended to decrease the proportion of eggs that hatched and the proportion of individuals producing viable offspring. Rearing both sexes at 35 degrees C increased fecundity in the subsequent generation but effects of elevated temperatures persisted across gonotrophic cycles within the same generation. Moreover, exposure of adults to 35 degrees C further decreased fertility beyond the effects of developmental temperature alone. These findings highlight sub-lethal impacts of elevated temperatures on Ae. aegypti fertility and plastic responses to thermal stress within and across generations. This has significant implications for predicting the distribution and abundance of mosquito populations thriving in increasingly warmer environments.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10606 - Microbiology

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2025

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Journal of Experimental Biology

ISSN

0022-0949

e-ISSN

1477-9145

Volume of the periodical

228

Issue of the periodical within the volume

3

Country of publishing house

GB - UNITED KINGDOM

Number of pages

12

Pages from-to

jeb249803

UT code for WoS article

001460332600022

EID of the result in the Scopus database

2-s2.0-85217549363