Survey on dynamics of wintering great bustard in mengjin wetland .
大鸨在孟津越冬动态调查。
But the poachers have not yet managed to put an end to the migration : jazu safely led a juvenile to the wintering grounds this year , making sure another generation will know where to go .
He says many migratory birds that breed in the united states are in decline even though the nation has a law to protect them and not just because of u.s. environmental problems , " but due to problems in their wintering grounds in latin america , such as loss of habitat and intensification of agriculture . "
Suitability evaluation of great bustard ( otis tarda ) 's wintering habitat in baiyangdian basin .
白洋淀流域大鸨越冬栖息地的适宜性评价。
Results the ginseng flower bud differentiation went through two years from bud differentiation to the end of the morphogenesis . The wintering bud was changing from leaf primordium differentiation stage to inflorescence primordium stage when the ginseng was at the red ripe stage .
Turkey , however , has historically been an important breeding or wintering location , and the loss of suitable habitat there can affect species 's total health .
The animals are " highly efficient and cost-effective " , laidre says , and they always return to the same wintering ground , so there is a geographical consistency in the data they record .