Certain shorebirds depend on these eggs for food during their annual spring migration to their northern breeding grounds.
某些海鸟在每年春季迁徙到北方繁殖地时，以这些鸟蛋为食。
What we've shown is that there are three clear migration routes as they head back to feeding grounds after breeding in Gabon, although the Numbers adopting each strategy varied each year.
我们所能得到的结果是他们在加蓬反之后返回觅食区的路径有三条，尽管他们的数量逐年发生改变。
'What we've shown is that there are three clear migration routes as they head back to feeding grounds after breeding in Gabon, although the Numbers adopting each strategy varied each year.
我们所能得到的结果是他们在加蓬反之后返回觅食区的路径有三条，尽管他们的数量逐年发生改变。
Shorter days affect migration and breeding behavior, so British birds return to summer breeding grounds about ten days earlier than birds that went south.
白昼短这一点可以影响到鸟类的迁移和繁殖行为，所以，英国的这些鸟类会在后院的梁上繁殖十天，之后才飞往南方。
The pilot test result of MEOR was evaluated and the reproduction, breeding and migration of micro organism in strata, and the MEOR's mechanism were discussed.
综合评价微生物采油现场试验研究及试验效果，讨论微生物在地层中的生长繁殖、运移及提高采收率机理。
Yangtze River had always been the ideal habitat, breeding ground, and migration channel by aquatic organisms.
长江流域历来是水生生物理想的栖息地、繁殖场及重要的洄游通道。
Yangtze River had always been the ideal habitat, breeding ground, and migration channel by aquatic organisms.
长江流域历来是水生生物理想的栖息地、繁殖场及重要的洄游通道。
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