当前位置: X-MOL 学术Freshwater Biol. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
From distraction to habituation: Ecological and behavioural responses of invasive fish to anthropogenic noise
Freshwater Biology ( IF 2.7 ) Pub Date : 2021-06-07 , DOI: 10.1111/fwb.13778
Emilie Rojas 1 , Simon Thévenin 1 , Gabriella Montes 1 , Nicolas Boyer 1 , Vincent Médoc 1
Affiliation  

  1. Tolerance to human-induced environmental stressors is known to contribute to the spread and success of invasive species but their response to anthropogenic noise has still to be explored. Anthropogenic noise might modulate the trophic impact of invasive species and their competitiveness against native species.
  2. We used an ecological approach through the derivation of the functional response to test whether the strength of the trophic interaction between the invasive pumpkinseed sunfish and Chaoborus larvae was influenced by motorboat noise, with or without pre-exposure.
  3. Boat noise decreased maximum feeding rate in the fish that never experienced boat noise before, resulting in a lower functional response compared to the ambient noise condition. We hypothesised that fish were distracted and reallocated a part of their finite attention to this new acoustic stimulus at the expense of prey processing.
  4. The distraction effect weakened with repeated exposure suggesting a habituation process. Although we cannot exclude persistent adjustments in behaviour, we did not find evidence for altered predation by fish pre-exposed to boat noise.
  5. Pumpkinseed sunfish did not exhibit clear symptoms of a behavioural stress response. Chaoborus movements were more numerous under boat noise but this was unlikely to influence trophic interaction strength relative to fish behaviour. Local species might experience increased trophic competition if they are disturbed and do not habituate contrary to invasive species.


中文翻译:

从分心到习惯:入侵鱼类对人为噪声的生态和行为反应

  1. 众所周知,对人为环境压力的耐受性有助于入侵物种的传播和成功,但它们对人为噪声的反应仍有待探索。人为噪声可能会调节入侵物种的营养影响及其对本地物种的竞争力。
  2. 我们通过功能反应的推导使用生态方法来测试入侵的南瓜籽翻车鱼和Chaoborus幼虫之间的营养相互作用的强度是否受到摩托艇噪音的影响,无论是否预先暴露。
  3. 船噪声降低了以前从未经历过船噪声的鱼的最大摄食率,导致与环境噪声条件相比功能响应较低。我们假设鱼会分心并将其有限的一部分注意力重新分配到这种新的声学刺激上,而牺牲了对猎物的处理。
  4. 分散注意力的效果随着反复暴露而减弱,表明这是一个习惯过程。虽然我们不能排除行为的持续调整,但我们没有发现预先暴露于船只噪音的鱼改变捕食的证据。
  5. 南瓜籽太阳鱼没有表现出明显的行为压力反应症状。Chaoborus运动在船只噪音下更多,但这不太可能影响相对于鱼类行为的营养相互作用强度。如果本地物种受到干扰并且不与入侵物种相反地习惯,它们可能会经历更多的营养竞争。
更新日期:2021-07-23
down
wechat
bug