据了解，最近的海洋热浪对海洋生态系统产生了广泛的影响，从初级生产力的下降到顶级捕食者的死亡。海鸠的死亡经常被观察到与热浪有关，但人们对热浪影响海鸠种群的强度尚不清楚。
在这项研究中，研究人员报道了阿拉斯加常见海鸠（Uria aalge） 种群的大约一半，在极端海洋热浪的影响下迅速死亡。在热浪之前（2008-2014年）和之后（2016-2022年）的7年间，两个大型海洋生态系统中的13个种群的海鸠数量下降了52%至78%。
研究人员通过计算得出有400万只常见的海鸠死亡，这是现代记录在案的最大的野生动物死亡事件。目前还没有观察到恢复的证据，表明这些生态系统可能不再支持海鸟顶级捕食者的历史数量。
附：英文原文
Title: Catastrophic and persistent loss of common murres after a marine heatwave
Author: Heather M. Renner, John F. Piatt, Martin Renner, Brie A. Drummond, Jared S. Laufenberg, Julia K. Parrish
Issue&Volume: 2024-12-13
Abstract: Recent marine heatwaves have had pervasive effects on marine ecosystems, from declines in primary production to die-offs of top predators. Seabird mortalities are often observed in association with heatwaves, but population impacts are not well understood. In this work, we report the rapid mortality of approximately half of Alaska’s common murre (Uria aalge) population in response to an extreme marine heatwave. Between the 7-year period before (2008–2014) and after (2016–2022) the heatwave, murre numbers plummeted 52 to 78% at 13 colonies across two large marine ecosystems. We calculated a loss of 4.00 million common murres, the largest documented wildlife mortality event in the modern era. No evidence of recovery has yet been observed, suggesting that these ecosystems may no longer support historic numbers of seabird top predators.
DOI: adq4330
Source: https://www.science.org/doi/10.1126/science.adq4330