Dawei Wu, Zhenqi Wang, Wei Hu, Changhu Lu, Pan Chen
College of Biology and the Environment Nanjing Forestry University Nanjing China.
College of Life Sciences Anhui Normal University Wuhu China.
Ecol Evol. 2023 Aug 9;13(8):e10417. doi: 10.1002/ece3.10417. eCollection 2023 Aug.
After the smooth cordgrass invaded coastal China, native birds started avoiding the green desert, and bird diversity declined. After many years, a few passerine birds began to enter and use smooth cordgrass, but only birds with a nonspecialised habitat. In this study, we found that a native reed-specific bird, the parrotbill flocked and sang in a smooth cordgrass habitat throughout the overwintering period near Sheyang Port in Yancheng, Jiangsu Province. This observation suggests that native obligate birds may be forced to adapt to exotic smooth cordgrass habitats after long-term coexistence, which would, obviously, affect the distribution, feeding and reproduction of birds. The concern is that this could be an ecological trap, leading to unknown consequences. More research is required to examine the process occurring along the Chinese coast.
互花米草入侵中国沿海地区后，本地鸟类开始避开这片绿色荒漠，鸟类多样性下降。多年后，一些雀形目鸟类开始进入并利用互花米草，但仅限于栖息地不特殊的鸟类。在本研究中，我们发现一种本地特有的食草鸟类——鹪莺，在江苏省盐城市射阳港附近的互花米草栖息地整个越冬期内聚集并鸣叫。这一观察结果表明，本地专性鸟类可能在长期共存后被迫适应外来的互花米草栖息地，这显然会影响鸟类的分布、觅食和繁殖。令人担忧的是，这可能是一个生态陷阱，会导致未知的后果。需要更多研究来考察中国沿海地区正在发生的这一过程。
