bioRxiv (Cold Spring Harbor Laboratory), Год журнала: 2023, Номер unknown

Опубликована: Фев. 5, 2023

Abstract Plant interactions, understood as the net effect of an individual on fitness a neighbor, vary in strength and can shift from negative to positive environmental conditions change time space. Evolutionary theory questions stability non-reciprocal interactions which one plant has return impact its benefactor. This type interaction is known antagonistic facilitation. We develop spatially explicit consumer-resource model for below-ground competition, including plants able mine resources make them available any other community, termed ecosystem engineers. use assess whether under facilitation via soil resource engineering evolutionarily stable. find that stable highly stressful conditions, supports engineers drivers primary succession provides theoretical ground investigate mechanistically context stress gradient hypothesis. Among all potential causes considered model, key parameter driving changes between proportion limiting without mining. finding represents challenge empirical studies, usually measure input or loss system proxy stress. also total root biomass spatial allocation through system, often used nature plants, do not predict reliably. Synthesis. Antagonistic established engineer nurse neighbor opportunistic individuals be environments where engineers’ self-benefits mining outweigh competition with neighbors. These results align theories hypothesis they show stress, but it evolves into mutual interference milder environments. However, using inaccurate parameters gradients studies might mask these patterns.

Язык: Английский