Impacts of artificial light at night on the early life history of two ecosystem engineers.
Impacts of artificial light at night on the early life history of two ecosystem engineers.
复制标题
夜间人造光对两名生态系统工程师早期生活史的影响。
DOI：
10.1098/rstb.2022.0363
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发表时间：
2023
期刊：
影响因子：
--
通讯作者：
Tidau S
中科院分区：
文献类型：
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作者：
Tidau S
固着海洋无脊椎动物作为生态系统工程师和在底栖-中上层耦合中发挥着至关重要的作用。大多数底栖动物都是通过幼虫阶段发育的，自然光周期对幼虫生物学和生态学的重要性早已确立。自然光暗周期调节两个最大的海洋规模的过程，是根本的幼虫的生命周期：广播产卵的时间成功受精和昼夜垂直迁移觅食和捕食者回避。鉴于对光的依赖和幼虫的生态作用，令人惊讶的是，人们对夜间人工光（ALAN）对栖息地形成物种早期生活史的影响知之甚少。我们量化了ALAN对温带海洋生态系统中两个世界性生态系统工程师的幼虫性能（生存，生长，发育）的影响，贻贝和藤壶。较高的ALAN辐照度降低了两种物种的存活率（分别为57%和13%）。ALAN对发育和生长的影响总体上较小，并且在种属、时间点和亲本之间存在差异。我们的研究结果表明，ALAN对幼虫的生存产生不利影响，并重申了父系对后代表现的影响的重要性。ALAN对生态系统工程物种早期生命阶段的影响不仅对种群生存能力有影响，而且对这些物种所支持的生态群落也有影响。本文是主题“复杂生态系统中的光污染”的一部分。
Sessile marine invertebrates play a vital role as ecosystem engineers and in benthic–pelagic coupling. Most benthic fauna develop through larval stages and the importance of natural light cycles for larval biology and ecology is long-established. Natural light–dark cycles regulate two of the largest ocean-scale processes that are fundamental to larvae's life cycle: the timing of broadcast spawning for successful fertilization and diel vertical migration for foraging and predator avoidance. Given the reliance on light and the ecological role of larvae, surprisingly little is known about the impacts of artificial light at night (ALAN) on the early life history of habitat-forming species. We quantified ALAN impacts on larval performance (survival, growth, development) of two cosmopolitan ecosystem engineers in temperate marine ecosystems, the musselMytilus edulisand the barnacleAustrominius modestus. Higher ALAN irradiance reduced survival in both species (57% and 13%, respectively). ALAN effects on development and growth were small overall, and different between species, time-points and parentage. Our results show that ALAN adversely affects larval survival and reiterates the importance of paternal influence on offspring performance. ALAN impacts on the early life stages of ecosystem engineering species have implications not only for population viability but also the ecological communities that these species support.This article is part of the theme issue ‘Light pollution in complex ecological systems’.