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首页> 美国卫生研究院文献>PLoS Clinical Trials >Ecological traps in shallow coastal waters—Potential effect of heat-waves in tropical and temperate organisms
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Ecological traps in shallow coastal waters—Potential effect of heat-waves in tropical and temperate organisms

机译：沿海浅水区的生态陷阱—热带和温带生物中热浪的潜在作用

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Mortality of fish has been reported in tide pools during warm days. That means that tide pools are potential ecological traps for coastal organisms, which happen when environmental changes cause maladaptive habitat selection. Heat-waves are predicted to increase in intensity, duration and frequency, making it relevant to investigate the role of tide pools as traps for coastal organisms. However, heat waves can also lead to acclimatization. If organisms undergo acclimatization prior to being trapped in tide pools, their survival chances may increase. Common tide pool species (46 species in total) were collected at a tropical and a temperate area and their upper thermal limits estimated. They were maintained for 10 days at their mean summer sea surface temperature +3°C, mimicking a heat-wave. Their upper thermal limits were estimated again, after this acclimation period, to calculate each species’ acclimation response. The upper thermal limits of the organisms were compared to the temperatures attained by tide pool waters to investigate if 1) tide pools could be considered ecological traps and 2) if the increase in upper thermal limits elicited by the acclimation period could make the organisms less vulnerable to this threat. Tropical tide pools were found to be ecological traps for an important number of common coastal species, given that they can attain temperatures higher than the upper thermal limits of most of those species. Tide pools are not ecological traps in temperate zones. Tropical species have higher thermal limits than temperate species, but lower acclimation response, that does not allow them to survive the maximum habitat temperature of tropical tide pools. This way, tropical coastal organisms seem to be, not only more vulnerable to climate warming per se, but also to an increase in the ecological trap effect of tide pools.
机译：据报道，在温暖的日子里，潮汐池中鱼的死亡率很高。这意味着潮汐池是沿海生物的潜在生态陷阱，当环境变化导致适应不良的栖息地选择时就会发生。预计热浪会增加强度，持续时间和频率，这使其有必要研究潮汐池作为沿海生物陷阱的作用。但是，热浪也可能导致适应环境。如果生物在陷入潮汐池之前先进行了驯化，它们的生存机会可能会增加。在热带和温带地区收集了常见的潮汐池物种（总共46种），并估算了其高温上限。将它们维持在平均夏季海面温度+ 3°C下10天，模仿热浪。在此适应期过后，再次估算了它们的温度上限，以计算每个物种的适应响应。将生物体的高温上限与潮汐池水所达到的温度进行比较，以调查是否1）潮汐池可被视为生态陷阱，以及2）如果适应期引起的高温上限的升高会使生物体较不脆弱对这种威胁。人们发现热带潮汐池是许多重要沿海物种的生态陷阱，因为它们可以达到的温度高于大多数此类物种的高温上限。潮池不是温带地区的生态陷阱。热带物种比温带物种具有更高的热极限，但是适应性响应较低，这使其无法在热带潮池的最大栖息地温度下生存。这样，热带沿海生物似乎不仅更容易受到气候变暖的影响，而且更容易受到潮汐池生态陷阱的影响。

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