A stabilizing eco-evolutionary feedback loop in the wild

被引:7
|
作者
Zamorano, Laura S. [1 ,2 ,4 ]
Gompert, Zachariah [3 ]
Fronhofer, Emanuel A. [4 ]
Feder, Jeffrey L. [5 ]
Nosil, Patrik [1 ,2 ]
机构
[1] CNRS, Theoret & Expt Ecol SETE, 2 Route CNRS, F-09200 Moulis, France
[2] Univ Montpellier, Univ Paul Valery Montpellier 3, CEFE, IRD,CNRS,EPHE, F-34095 Montpellier, France
[3] Utah State Univ, Dept Biol, Logan, UT 84322 USA
[4] Univ Montpellier, CNRS, ISEM, IRD,EPHE, F-34095 Montpellier, France
[5] Univ Notre Dame, Dept Biol Sci, South Bend, IN 46556 USA
关键词
NATURAL-SELECTION; VISUAL PREDATION; RAPID EVOLUTION; DYNAMICS; POLYMORPHISM; POPULATIONS; DIVERGENCE; CRYPSIS; TIME;
D O I
10.1016/j.cub.2023.06.056
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
There is increasing evidence that evolutionary and ecological processes can operate on the same time-scale1,2 (i.e., contemporary time). As such, evolution can be sufficiently rapid to affect ecological processes such as predation or competition. Thus, evolution can influence population, community, and ecosystem-level dynamics. Indeed, studies have now shown that evolutionary dynamics can alter community structure3-6 and ecosystem function.7-10 In turn, shifts in ecological dynamics driven by evolution might feed back to affect the evolutionary trajectory of individual species.11 This feedback loop, where evolutionary and ecological changes reciprocally affect one another, is a central tenet of eco-evolutionary dynamics.1,12 However, most work on such dynamics in natural populations has focused on one-way causal associations between ecology and evolution.13 Hence, direct empirical evidence for eco-evolutionary feedback is rare and limited to laboratory or mesocosm experiments.13-16 Here, we show in the wild that eco-evolutionary dynamics in a plant-feeding arthropod community involve a negative feedback loop. Specifically, adaptation in cryptic coloration in a stick-insect species mediates bird predation, with local maladaptation increasing predation. In turn, the abundance of arthropods is reduced by predation. Here, we experimentally manipulate arthropod abundance to show that these changes at the community level feed back to affect the stick-insect evolution. Specifically, low-arthropod abundance increases the strength of selection on crypsis, increasing local adap-tation of stick insects in a negative feedback loop. Our results suggest that eco-evolutionary feedbacks are able to stabilize complex systems by preventing consistent directional change and therefore increasing resilience.
引用
收藏
页码:3272 / +
页数:11
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