A species may be accorded bonus poi

A species may be accorded bonus points in the biodiversity equation for another reason as
well; it may be deemed more significant by virtue of the role it plays in the ecosystem. An example
of this would be the California sea otter. [1] The preferred food of this species of marine mammal is
the sea urchin; a marine invertebrate, which feeds on a certain type of sea grass known as kelp. [2]
Were it not for the otter’s contribution in controlling the sea urchin population, the undersea kelp
forest would surely be decimated by a dramatic increase in the population of sea urchins. [3] This
would remove a key supporting element – the kelp – from the habitat of many fish and invertebrate
species that depend on it. [4] This, in turn, would fundamentally alter an entire undersea habitat and
undoubtedly put a risk a number of different species that have adapted to its peculiar characteristics.
Therefore, the behavior of the otter in actively maintaining the local diversity of species dictates that
it should be assigned a higher biodiversity value.

結果 (繁體中文) 2:

一個物種可能在另一個原因是生物多樣性公式給予加分
好; 它可被認為憑藉它在生態系統中所扮演的角色的更顯著。一個例子
中，這將是加州海獺。[1]這種海洋哺乳動物的首選食物是
海膽; 海洋無脊椎動物，它助長了某種類型的海草被稱為海帶。[2]
如果不是在控制海膽人口水獺的貢獻，海底海帶
森林將肯定會在海膽的人口急劇增加銳減。[3]這
將消除一個關鍵支撐因素-海帶-從許多魚類和無脊椎動物的棲息地
物種依賴於它。[4]這，反過來，會從根本上改變整個海底棲息地，並
毫無疑問把風險的號碼已經適應了其獨特的特點。不同種類的
因此，水獺的行為，積極維護物種的多樣性當地決定了
它應該被賦予更高的生物多樣性價值。