氣候暖化令海牛、海龜等草食動物往亞熱帶地區遷移，對海草床帶來新的威脅。亞熱帶地區的海草比熱帶地區吸收到陽光的機會較少，草食動物的增加令它們無法快速恢復。海草床除了為草食動物提供食糧，亦是其他物種重要繁殖及育兒的地方。

Herbivores like manatees and sea turtles are moving to subtropical area because of warming temperatures, creating new threat to seagrass meadows. Seagrass in subtropical area receive less sunlight than tropical areas and cannot recover fast enough with the increasing grazing. Seagrass meadows provide food for herbivores as well as breeding ground and nursery habitat for many other species.

https://www.earth.com/news/seagrass-meadows-under-threat-herbivores-migrating-warm-waters/