The importance of fat accumulation and reserves for insect overwintering.

[en] Winter is a challenging season for ectothermic species such as insects. In addition to thermal stress imposed by cold temperatures, food scarcity during winter can lead to starvation and energy drain. In preparation for winter, most insects accumulate lipid (fat) reserves, which are the principal source of energetic fuel during overwintering. In this review, we highlight the most recent literature on lipid metabolism in response to cold. We first discuss how lipid metabolism is affected by biotic and abiotic environmental changes in preparation for winter. We then highlight how lipid dynamics are affected during winter, including physiological and (epi)genetic mechanisms. We end our review emphasizing the importance of remaining fat reserves in spring and how climate change can negatively impact lipid metabolism and fitness.

Disciplines :

Zoology

Author, co-author :

Enriquez, Thomas ; Université de Liège - ULiège > Département GxABT > Gestion durable des bio-agresseurs

Visser, Bertanne ; Université de Liège - ULiège > TERRA Research Centre > Gestion durable des bio-agresseurs

Language :

English

Title :

The importance of fat accumulation and reserves for insect overwintering.

Publication date :

December 2023

Journal title :

Current Opinion in Insect Science

ISSN :

2214-5745

eISSN :

2214-5753

Publisher :

Elsevier Inc.

Volume :

Pages :

101118

Peer reviewed :

Peer Reviewed verified by ORBi

Funders :

F.R.S.-FNRS - Fonds de la Recherche Scientifique
Fondation Fyssen
ULiège - Université de Liège

Funding text :

This work was supported by the Fyssen Foundation , the University of Liège , and the Fonds National de la Recherche Scientifique (F.R.S.-FNRS).

Available on ORBi :

since 29 January 2024

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