accidental species

基本解释

Introductions of new species, both accidental and deliberate, over the past few centuries show the problem.
在過去的幾百年裡，不琯是有意地還是無意地引進新物種，都暴露出一些問題。
Lewison said that long-lived species are particularly affected by accidental entanglement in fishing lines, because these species take so long to reproduce.
劉易森稱，長命物種很容易被釣絲意外纏住，因爲這些生物需要很長時間才能繁殖。
Noting the decline in hunts of whales and other sea mammals over the last few decades, the IUCN said accidental killing in fishing gear was now the "main threat" to these species.
注意到在過去幾十年間捕殺鯨魚和其他海洋哺乳類動物的下降，IUCN 說，在漁具中的意外死亡現在是這些物種的“主要威脇”。
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In summary, Dr Saetre and his colleagues have vindicated Dobzhansky and thus confirmed a mechanism for the origin of species that is directly caused by natural selection, rather than being an accidental by-product of it.
ECONOMIST: Evolution