Artificial light at night (ALAN) disrupts behavioural patterns of reef corals.

Artificial light at night (ALAN) disrupts behavioural patterns of reef corals.
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夜间人造光 (ALAN) 会扰乱珊瑚礁的行为模式。

DOI:
10.1016/j.marpolbul.2023.115365
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发表时间:
2023
影响因子:
5.8
通讯作者:
Mardones ML
Mardones ML
中科院分区:
环境科学与生态学3区
文献类型:
--
作者:
Mardones ML

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夜间人造光(ALAN)水平的提高改变了全球范围内生物体的自然昼夜循环。 ALAN 对共生石珊瑚的光依赖功能构成了潜在威胁,石珊瑚是温暖浅水珊瑚礁的习性创始人。在这里,我们证明 ALAN 破坏了自然的昼夜触手扩张和收缩行为,这是珊瑚捕获猎物和获取营养的关键机制。我们将四种共生造石珊瑚物种暴露于不同的 ALAN 处理(0.4–2.5 μmol 量子 m−2s−1)中。暴露于 1.2 μmol 量子 m−2s−1 及以上的 ALAN 水平会改变昼夜物种(Stylophora pistillata 和 Duncanopsammia axifuga)的正常触手扩张反应。夜行性物种(Montastraea Cavernosa 和 Lobophyllia hemprichii)的触手扩张模式受到的影响较小,这可能表明其耐受 ALAN 暴露的能力更强。这项工作的结果表明,ALAN 有可能影响共生珊瑚的营养获取机制,进而可能导致 ALAN 暴露区域浅水珊瑚礁的珊瑚群落结构发生变化。
Increasing levels ofArtificialLightAtNight (ALAN) alter the natural diel cycles of organisms at global scale. ALAN constitutes a potential threat to the light-dependent functioning of symbiotic scleractinian corals, the habit-founders of warm, shallow water reefs. Here, we show that ALAN disrupts the natural diel tentacle expansion and contraction behaviour, a key mechanism for prey capture and nutrient acquisition in corals. We exposed four symbiotic scleractinian coral species to different ALAN treatments (0.4–2.5 μmol quanta m−2s−1). Exposure to ALAN levels of 1.2 μmol quanta m−2s−1and above altered the normal tentacle expansion response in diurnal species (Stylophora pistillataandDuncanopsammia axifuga). The tentacle expansion pattern of nocturnal species (Montastraea cavernosaandLobophyllia hemprichii) was less affected, which may indicate a greater capacity to tolerate ALAN exposure. The results of this work suggest that ALAN has the potential to affect nutrient acquisition mechanisms of symbiotic corals which may in turn result in changes in the coral community structure in shallow water reefs in ALAN-exposed areas.
DOI: 10.1073/pnas.2101985118
发表时间: 2021-08-24
影响因子: 11.1
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DOI: 10.3390/microorganisms8020193
发表时间: 2020-01
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期刊: SUSTAINABILITY
影响因子: 3.9
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DOI: 10.1016/j.envpol.2020.114987
发表时间: 2020-11-01
影响因子: 8.9
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通讯作者: Ferrier-Pages, Christine
DOI: 10.1371/journal.pone.0118571
发表时间: 2015
期刊: PloS one
影响因子: 3.7
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