This ancestral species might have evolved at a time when the islands were connected.

这种祖先物种可能是在岛屿相连的时候进化而来的。

youdao

If such practices are unchecked, half the species in the Coral triangle will continue to disappear at a rate of 1-2% a year.

如果这些行为不加以制止，那么珊瑚三角区内一半的物种将以每年1-2％的速度继续消亡。

youdao

Boundary clay layers are used by scientists to determine the rate at which an extinct species declined.

边界粘土层被科学家用来确定一个灭绝物种衰落的速度。

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Lead author Beth Polidoro works for the Global Marine Species Assessment Unit, based at Old Dominion University in Richmond,Virginia.

VOA: special.2010.04.20

At depths of nearly four hundred meters, the researchers found the oldest examples of two species of coral.

VOA: special.2009.05.12

The researchers looked at seventy species of mangrove.

VOA: special.2010.04.20

Biodiversity impacts can occur at the species level and at the ecosystem level.

FORBES: Operationalizing the Precautionary Principle for Biodiversity

So you get both the possibility of having new zones along that side of the mountain and then of course for the species at the top of the mountain, there's no place for them to go.

NPR: Warming Will Create Micro-Climates, Scientists Say

The forthcoming project will study productivity and nesting success and look at the foraging habits of the species to see what ancillary habitats are used for foraging.

BBC: nightjar-RSPB images