vulnerable species

基本解釋

The IUCN red list identifies polar bears as a vulnerable species, citing global climate change as a "substantial threat" to their habitat.
世界自然保護聯(lián)盟紅色名錄已經將北極熊確定為漸危物種之一，將全球氣候變化定義為影響北極熊棲息地改變的“潛在殺手”。
Earth is experiencing its "sixth great extinction event" with disease and human activity taking a devastating toll on vulnerable species, according to a major review by conservationists.
根據(jù)自然資源保護者的重要回顧報告，地球正經歷“第六次大滅絕事件”，因為疾病和人類活動正在令脆弱的物種遭受到災難性打擊。
They were declared a vulnerable species in 2006 when the population was estimated to be between 125, 000 to 150, 000, a decline of 7% in 10 years.
他們宣稱這個脆弱物種的數(shù)量在2006年時估計在125000——150000只之間，十年內下降了百分之七。

Polar bears live along the Arctic Circle and are considered a vulnerable species by the International Union for Conservation of Nature in Switzerland.
FORBES: Russian Police Kill Three Polar Bears Following Deadly Attack
"That's why it's such a vulnerable species, " Lopez said.
NPR: Alarm Over Vanishing Frogs In The Caribbean