What would spring be without the gentle drone of fuzzy bumblebees, lazily dipping in and out of flowers in the warm sunshine? Unfortunately, research suggests, much of the country may be at risk of finding out.
没有模糊的大黄蜂温柔的嗡嗡声，懒洋洋地在温暖的阳光下浸泡着花朵，春天会是什么样子呢？不幸的是，研究表明，这个国家的大部分地区可能都有发现的风险。
And climate change is at least partly to blame.
气候变化至少是部分原因。
Bumblebee populations have plunged in both Europe and North America over the last few decades, a new study suggests.
一项新的研究表明，在过去的几十年中，欧洲和北美的大黄蜂数量都大幅下降。
The likelihood that a given location is populated by bumbles has dropped by a whopping 46% in North America, compared with what it was prior to the 1970s.
与20世纪70年代之前相比，北美某一特定地点布满了乱七八糟的东西的可能性下降了46%。
And it’s fallen by about 17% in Europe.
而在欧洲，这一数字下降了约17%。
That’s likely due to a number of factors, including land use changes, habitat loss and pesticide use.
这可能是由于许多因素，包括土地使用的变化，栖息地的丧失和杀虫剂的使用。
But rising temperatures have also likely played a significant role, the research suggests.
但研究表明，气温上升也可能起到了重要作用。
The new study, conducted by researchers from Canada’s University of Ottawa and the United Kingdom’s University College London, found that bee declines tended to be linked to higher temperatures.
这项由加拿大渥太华大学和英国伦敦大学学院的研究人员进行的新研究发现，蜜蜂数量的下降往往与较高的温度有关。
The study was based on observations of 66 species across both continents.
这项研究基于对两大洲66个物种的观察。
Bees don’t function well once the temperature reaches a certain point, said lead study author Peter Soroye of the University of Ottawa.
渥太华大学的首席研究作者Peter Soroye说，一旦温度达到一定的温度，蜜蜂就不能正常工作。
“We know that when temperatures start to get really hot, bees start to have a lot of difficulty flying and foraging,” he told E&E News.
“我们知道，当温度开始变得非常热时，蜜蜂开始有很多飞行和觅食的困难，”他告诉E&E新闻。
Additionally, rising temperatures can also affect the vegetation that bees depend on for survival.
此外，气温升高也会影响蜜蜂赖以生存的植被。
The researchers note that different bee species have different temperature limits.
研究人员指出，不同的蜜蜂物种有不同的温度限制。
And in some cases, a warmer climate can open up new areas for bumblebees to move into.
在某些情况下，温暖的气候可以为大黄蜂开辟新的迁入领域。
But that’s only true up to a certain point—eventually, it’s likely to become too warm.
但这只在一定程度上是正确的-最终，它可能会变得太热。
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