One way these urchins influenced the ecosystem was by grazing down the large alage that grows in the area, making a clear area where juvenile coral could gain an easy foothold.
One way these urchins influenced the ecosystem was by grazing down the large alage that grows in the area, making a clear area where juvenile coral could gain an easy foothold.
这些海胆对生态系统的影响方式之一是吃该区域的大型藻类，从而清出一块区域，幼年珊瑚可以获得舒适的立足地。