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- species composition of birds 鸟类组成
- The composition of bird has obvious character of Palaearctic region. There are 98 species (42. 6%) of summer migrants, 60 species (26.1%) of travelers, 17 species (7. 4%) of winter migrants, 55 species (23.9%) of resident birds. 夏候鸟98种(42.;6%25);旅鸟60种(26
- The species composition of mollusca were markedly difference in different sediment. 不同底质的红树林区软体动物组成有显著差异。 污染可能是造成沙头角红树林区软体动物多样性低的重要环境因子。
- Objective To investigate species composition of gamasid mites,chigger mites and flea on the rodent in Zhuhai Port. 目的调查珠海口岸地区鼠体表寄生虫蚤、革螨、恙螨、蜱、吸虱的种群组成。
- Urban forest fragments are potential 'habitat islands' for urban birds.Landscape structure of the fragments may influence the composition of bird assemblages. 摘要都市中破碎的森林可能是都市鸟类的栖地岛屿,而这些栖地岛屿的地景结构可能影响著都市鸟类群聚之组成。
- He was pleased to get up to the singing of birds. 他很高兴起床听到鸟的歌唱。
- Conclusion The seasonal fluctuation of R. flavipectus and the species composition of parasitical fleas were clear.The host animal and Xenopsylla cheopis should be controled. 结论摸清了合浦县黄胸鼠及其寄生蚤的种类、构成和季节消长,表明它们仍是合浦县鼠疫预防控制的主要对象。
- Objective To study seasonal fluctuation of Rattus flavipectus and the species composition of fleas,and provide the evidences for the policy making in Hepu county of Guangxi. 目的研究广西壮族自治区合浦县鼠疫自然疫源地内黄胸鼠及其寄生蚤的种类、构成和季节消长,为制定鼠疫防制对策提供依据。
- Vast multitudes of birds visit this lake in spring. 春天有大批的鸟飞临此湖。
- Logging planner can justify the case by comparing the produced timber volume and potentially impacted adjacent trees;and the species composition of the impacted adjacent trees. 伐木计划者可以通过比较木材生产量、对潜在受影响的邻近树木、受影响邻近树木的物种构成来调整案例。
- Clouds of birds rose from the treetops. 黑压压一大群鸟儿从树梢飞起。
- He was awakened by the song of birds in the trees. 他被林中的鸟鸣声闹醒。
- Large numbers of birds migrate south every winter. 每年冬季大量的鸟类迁徙南方。
- The oil spill endangered thousands of birds. 石油的溢泄危及成千上万的鸟儿。
- You can find whole regiments of birds on the islet. 在那个小岛上你可以看到成群的鸟。
- These woods are frequented by all kinds of birds. 这些树林里经常栖息着各种鸟类。
- Having lobate toes. Used of birds. 蹼足的有叶状趾的。指鸟类
- The composition of the report took two months. 写这份报告花了两个月时间。
- Some of the species of birds are extinct. 有几种鸟类已经绝种了。
- species composition of urban green area 城市绿地植物组成