Life-history adaptation under climate warming magnifies the agricultural footprint of a cosmopolitan insect pest

Nature Communications, Год журнала: 2025, Номер 16(1)

Опубликована: Янв. 18, 2025

Abstract Climate change is affecting population growth rates of ectothermic pests with potentially dire consequences for agriculture and global food security. However, current projection models pest impact typically overlook the potential rapid genetic adaptation, making forecasts uncertain. Here, we predict how climate adaptation in life-history traits insect affects their on agricultural yields by unifying thermodynamics classic theory resource acquisition allocation trade-offs between foraging, reproduction, maintenance. Our model predicts that warming temperatures will favour towards maintenance coupled increased through larval evolution this strategy results both per capita host consumption, causing a double-blow yields. We find support these predictions studying thermal gene expression wide-spread pest, Callosobruchus maculatus ; 5 years under experimental an almost two-fold increase its predicted footprint. These show can offset projections emphasize need integrating mechanistic understanding into change.

Язык: Английский

Repeatability of evolution and genomic predictions of temperature adaptation in seed beetles

Nature Ecology & Evolution, Год журнала: 2025, Номер unknown

Опубликована: Май 16, 2025

Climate warming is threatening biodiversity by increasing temperatures beyond the optima of many ectotherms. Owing to inherent non-linear relationship between temperature and rate cellular processes, such shifts towards hot are predicted impose stronger selection compared with corresponding cold temperature. This suggests that when adaptation occurs, it should be relatively rapid predictable. Here we tested this hypothesis from level single-nucleotide polymorphisms life-history traits in beetle Callosobruchus maculatus. We conducted an evolve-and-resequence experiment on three genetic backgrounds reared at or Indeed, find phenotypic evolution was faster more repeatable However, genomic level, heat less across backgrounds. As a result, predictions populations exposed were accurate within, but not between, These results seem best explained redundancy increased importance epistasis during heat, imply same mechanisms exert strong increase repeatability reduce level. Thus, key phenotypes data may become increasingly difficult as climates warm.

Язык: Английский

Temperature Drives the Evolutionary Diversification of Male Harm in Drosophila melanogaster Flies

Ecology Letters, Год журнала: 2025, Номер 28(3)

Опубликована: Март 1, 2025

Sexual selection often leads to sexual conflict via pre-copulatory (harassment) and/or copulatory (traumatic insemination) male harm females, impacting population growth, adaptation and evolutionary rescue. Male mechanisms are diverse taxonomically widespread, but we largely ignore what ecological factors modulate their diversification. Here, conducted experimental evolution under low- (20°C ± 4°C), moderate- (24°C 4°C) high-temperature (28°C regimes in Drosophila melanogaster, a species with harassment seminal fluid proteins (SFPs), show that temperature drives the divergent of conflict. At low-temperature regime, resulted reduced less plastic (i.e., harm) while at it was characterised by responses proteome driven differential expression SFPs. Our results suggest can be key understanding past diversification future (global warming) conflict, maintenance genetic variation traits.

Язык: Английский