全球变暖逆转鸟类捕食规律

Many biological patterns have a latitudinal component.

很多的生物规律都有纬度的因素。

One long-recognized pattern is that predation rates are higher at lower latitudes.

其中一个大家熟知的规律就是纬度越低，捕食率越高。

This may explain why many migratory birds travel thousands of miles from the tropics to the poles to breed.

这也许可以解释为什么很多的候鸟都会从热带迁徙上千英里到极地来繁殖。

Looking across thousands of records, Kubelka et al. found that climate change seems to have altered this fundamental pattern.

在查看了上千份记录后，库贝卡等发现气候变化似乎已经改变了这种基本的规律。

In shorebirds, at least, predation rates on nests are now higher in the Arctic than in the tropics.

至少在滨鸟中，极地的在巢捕食率比热带要更高了。

Ongoing climate change is thought to disrupt trophic relationships, with consequences for complex interspecific interactions, yet the effects of climate change on species interactions are poorly understood, and such effects have not been documented at a global scale.

持续的气候变化据说破坏了营养关系，导致了复杂的种间相互作用，然而气候变化对物种相互作用的影响人们知之甚少，而且这种影响在全球范围内尚未有记录下来。

Using a single database of 38,191 nests from 237 populations, we found that shorebirds have experienced a worldwide increase in nest predation over the past 70 years.

利用一个来自237个种群的38191个巢穴的数据库，我们发现在过去70年里，滨候鸟在世界范围内经历在巢捕食的增加。

Historically, there existed a latitudinal gradient in nest predation, with the highest rates in the tropics; however, this pattern has been recently reversed in the Northern Hemisphere, most notably in the Arctic.

从以往来看，在巢捕食上存在着一个纬度梯度，最高的出现在热带；然而，这种规律最近在北半球发生了逆转，其中最明显的就是北极。

This increased nest predation is consistent with climate-induced shifts in predator-prey relationships.

这种增加的巢捕食与气候引起的捕食-猎物关系的变化是一致的。

对于全球变暖引起的原有生物规律的逆转，朋友们有什么看法呢？欢迎给amber留言哦！

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