科技挖掘 TechDig

致力于知识的获取

生病的海洋哺乳动物

气候变化对海洋生物的影响


生病的海豹

原文 音频

北极变暖的速度是地球其他地区的两倍,这意味着每年融化的海冰越来越多。

 

“这确实关系到那里海冰的迅速流失,原因很多。”

 

特蕾西·戈尔茨坦,加州大学戴维斯分校的研究员和环保主义者。她说,其中一个原因是像海豹这样的动物需要冰来拖走并分娩。另一个原因?随着北极变暖,海豹吃的鱼可能会移动到更深更冷的水域。所以海豹必须走得更远才能猎杀它们。

 

“因此,随着时间的推移,所有这些因素的结合可能会影响他们的健康和身体状况。这将使他们不仅体重不足,而且更容易患上其他疾病。”

 

这些疾病也可能侵袭北极海洋哺乳动物,因为(在这里发现了一个趋势?)北极海冰正在融化。

 

“这完全是意外的结果,但是的。当曾经有一座冰桥的时候,某些种群会彼此分开,所以它们不能接触,也不能把它们的细菌、病毒等给彼此。但一旦这些通道开始开放,动物就能够进一步移动,接触到过去从未接触过的新物种。”

 

戈尔茨坦和她的同事记录了从2001年到2016年一种名为马蹄疫病毒的疾病的传播。它与麻疹有关,引起海洋哺乳动物的皮肤损伤、咳嗽、肺炎、癫痫发作,有时甚至死亡。

 

戈尔茨坦的研究小组扫描了历史上和当代海洋哺乳动物的血液样本,寻找抗该病毒的抗体。他们还寻找哺乳动物鼻拭子中活感染的证据。他们发现,病毒的爆发与多年来海冰的极度流失有关,这表明开阔水域有助于病原体的传播,可能是沿着西伯利亚北部融化的海岸线。

 

他们的分析发表在《科学报告》杂志上。[E.VanWormer等人,北太平洋海洋哺乳动物中病毒的出现可能与北极海冰减少有关]

 

戈尔茨坦说,随着北极融化,依赖冰生存的哺乳动物可能已经注定要灭绝。更频繁的像这种病毒性传染病可能会加速打击。但人类也可能受到影响。

 

“在北极,人们依靠这些物种生存,因此他们真正依靠这些动物维持生计和福祉。随着这些动物消失,或者它们的栖息地消失,这也将严重影响该地区的人类。因此,总的来说,我认为随着时间的推移,北极地区的环境、动物和人类的整体健康状况将继续恶化。”

 

当然,除非我们人类采取有意义的行动来减缓地球变暖。

博文最后更新时间:


评论

  • Irving

    What sort of work do you do? http://devinswany.com/stmap_19zwkycw.html?ziac.ansaid.lipothin.viagra aspirin complex oder ibuprofen The set-up is typical of swathes of U.S. companies usingIreland to cut their tax bill. A Reuters analysis of Irish andU.S. filings shows that more than 40 percent of the S&P 500 haveregistered subsidiaries in the country.

  • Sanford

    Have you read any good books lately? http://www.gregahern.us/stmap_54xzbfos.html?aygestin.moduretic.ketotifen.levitra tadalafil sunrise erfahrung President Barack Obama will press his case for a quickreopening of the entire federal government, coupled with ashort-term increase of U.S. borrowing authority to avoid a U.S.default, when he meets with Senate Republicans on Friday.

  • DE

    Languages https://dev.api.mosbeautyshop.com/stmap_31fqfoiz.html?viagra.rheumatrex.benicar.duratia baidyanath ashwagandha powder price This is one of many steps by the application company to capture the growing micro video blogging market that Twitter's long shot app Vine has made so popular. When Instagram announced its fifteen-second video functionality, it appeared to be an improvement on Vine in every way. The videos can be nine seconds longer, there are custom frames and filters, the videos can be clipped and sections can be reshot. However, in practice it's had trouble drawing users away from the well-established six-second video community Twitter has gained. Vine allows user's videos to be shared more easily and can be found through an easier-to-use explore feature. Meanwhile, Instagram is still the go-to place for personal videos people wish to share with their friends.

  • Raymundo

    Have you seen any good films recently? http://oxin.ist/stmap_54yebbug.html?colospa.sominex.cialis naproxeno con paracetamol suspension dosis Some of the speculation appears to stem from a protest lodged by New Zealand just before the finals began over an Oracle system that used an electrical switch to control the movements of the boat's daggerboards. The challenge was rejected by the jury that addresses rules disputes, in part because it was lodged too late.

  • Perry

    Could I make an appointment to see ? http://www.kobify.com/stmap_31monane.html?viracept.bimatoprost.cialis.ladygra kirkland ibuprofen 400mg canada A: No, that all sort of crept up on me, and then pretty much by accident I wrote a book with a friend of mine Peter de Jonge, a little goth novel 'Miracle on the 17th Green.' It turned out nicely and I liked the process. I think people just don't think through the notion of cooperative art or co-writing. The movie and television worlds are full of teams, so are museums. So it's not as odd as people think it is, but that obviously allowed me to explode the number of books I've involved myself with.

  • Vida

    I've got a part-time job http://banlaophen.go.th/stmap_31fqfoiz.html?combivir.levitra.avodart.cycrin clotrimazole based creams When President Xi Jinping took office earlier this year there had been expectations in some quarters he may take a softer line on Tibet, partly because his late father, a reformist vice premier, had a close bond with the Dalai Lama.

发表评论

博客统计

访问量:2870668

博文总数:5 评论总数:643336

原创2 转载0 翻译3