美国鱼类和野生动物管理局表示，自1990年来，近十亿只帝王蝶在越冬地点消失了。
The US Fish and Wildlife Service said that nearly a billion monarchs have disappeared from overwintering sites since 1990.
例如，许多锈菌在转主寄主上越冬。
越冬黑颈鹤的种群结构合理。
The population structure of the wintering cranes is reasonable.
被寄生的幼虫在冻土层以下越冬，称为冬虫。
Were parasitized larvae overwinter in the frozen soil layer below, known as winter worm.
越冬的块茎基本组织细胞中富含单粒淀粉粒。
The single grain starch granules were rich in the basic tissue of winter tuber.
新疆冬季寒冷，石榴必须埋土才能安全越冬。
Pomegranate must be covered with soil to overwinter safely in Xingjiang.
因此，白头鹤在崇明东滩的越冬期约为5个月。
So the wintering period of Hooded Crane at Chongming Dongtan is about 5 months.
卵在室外土中越冬；
若整个蜂群的寿命预测低于200天，这会使得蜜蜂群越冬很难。
The life expectancy of entire colonies dropped below 200 days, making it difficult for honeybees to last through winter.
目的：本文对糖槭夏果与越冬果的有效成分进行比较。
Objective:Compare effective components of summer and winter fruits of acer saccharum.
为了使这些大田作物能够安全越冬，防霜作业具有极端重要意义。
In order that the crops in open field could survive safely the winter frost prevention operation is of Paramount importance.
无论在繁殖地或越冬地，生物学家还没有发现任何急剧变化的证据。
Biologists found no evidence of any dramatic changes on either the breeding or wintering grounds.
濒临灭绝的佛罗里达海牛在佛罗里达州水晶河的越冬场所三姐妹泉。
Endangered Florida manatee at the Three Sisters Spring wintering site, Crystal River, Florida.
人们心怀感激因为越冬的粮食收集起来了，农活结束了。
People are grateful because their food is gathered for the winter and the agriculture work is over.
越冬的粮食收集起来了，农活结束了，人们都心怀感激。
People are grateful because their food is gathered for the winter and the agricultural work is over.
实验还证明霍乱弧菌的越冬是通过活的非可培养状态实现的。
Experiments indicated that Vibrio Cholerae overwintered through the viable but non-culturable state.
同时还对热带牧草越冬、温带牧草越夏的气象指标进行了鉴定。
Meanwhile, it also identifies the meteorological indexes for the tropical herbage to survive winter and for the temperate herbage to survive summer.
本文也对改善黑颈鹤越冬栖息地的管理和保护提出了一些建议。
Some Suggestions were also put forward on the habitat protection for the wintering Black-necked Cranes.
研究结果表明温度是影响牙鲆在越冬期标准代谢的主要环境因子。
The result showed that temperature was an important environmental factor affecting basal metabolism of the wintering flounder.
冬季低温是限制柑桔潜叶蛾分布和决定越冬虫口基数的关键因子。
Consequently, the low winter temperature is the key factor confining the distribution and overwintering population base of this insect pest.
冬小麦的总茎数各品种均在越冬前达最大值，越冬后呈下降趋势。
The number of total stems of winter wheat reached the highest before overwintering stage and declined after overwintering.
据2月23日证实，亚洲大豆锈菌在佛罗里达州戴德市已成功越冬。
The first over-wintering of soybean rust was identified near Dade City, Florida, on February 23.
沼生植物：多年生的沼泽植物，具有水下越冬芽。例如芦苇(香蒲)。
Helophyte a perennial marsh plant that has its overwintering buds under water. An example is bulrush (Typha).
相关分析结果表明，总含水量和可溶性糖含量与越冬存活率关系密切。
Correlation analysis showed that total water content and soluble sugar content had close relations to the survival rates.
在进行种群数量调查的同时，还对越冬灰鹤种群的年龄结构进行了探讨。
At the same time of population census, the age structure of wintering common cranes had also been examined.
进行不同刈割次数处理，越冬期间取样测定其根系中可溶性糖含量及越冬率。
The results indicated that Cutting frequency was significantly negatively correlated with the soluble sugar content of the root and winter survival rate.
大约500万公顷的越冬农作物被估计受到严重危害，而春季农作物的播种面积被大幅减少。
Some five million hectares of winter crops are estimated to have been lost or damaged, and the areas planted in spring crops have been reduced substantially.
针对越冬期东西方蜜蜂的过冷却点进行了测试并对其与越冬性能的关系进行了分析。
The supercooling points of honeybees were tested, and the relationship between the supercooling point and the cold resistance was analyzed.
五颜六色的巢为幼虫生长提供了潮湿安全的空间。幼虫食用其父母准备的花蜜和花粉，结茧越冬。
The colorful nests make moist, secure Chambers for the larvae to grow, feast on nectar and pollen laid by its parents, and build a cocoon to wait out the winter.
五颜六色的巢为幼虫生长提供了潮湿安全的空间。幼虫食用其父母准备的花蜜和花粉，结茧越冬。
The colorful nests make moist, secure Chambers for the larvae to grow, feast on nectar and pollen laid by its parents, and build a cocoon to wait out the winter.
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