当然，有些动物物种需要大面积的栖息地，有些则需要长途迁徙。
There are, of course, animal species that require large areas of habitat, and some migrate over very long distances.
大多数物种身体上的大部分面积都没有鳞片，这使得它们很光滑。
Most species lack scales over most of the body, making it smooth and slippery.
在这项研究里，科学家们把世界上宠物的主人进行划分，并且对超过500个现存的或已成为化石的物种的大脑面积进行了研究。
The findings, which are bound to divide pet owners around the world, come from a study into the brain size of more than 500 species of living and fossilised mammals.
根据国际自然和自然资源保护联盟的资料显示，对这个物种最大的威胁包括水污染，大坝建设和湿地面积缩小。
Major threats to the species' survival include water pollution, dam construction, and wetlands loss, according to the International Union for Conservation of Nature.
Wilson计算出了单位面积上的人类数量已经百倍于任何其他在地球上行走的大的动物物种。
Wilson calculates that human biomass is already a hundred times larger than that of any other large animal species that has ever walked the Earth.
物种损失的原因是生境面积的大量损失和鸟屿化过程的加剧。
Species are lost because of the overall loss of habitat area, and as a result of increasing insularization.
一些物种生息着一个面积只有葬身在另一个国家。
这些类似性将与已测量的环境变量一起纳入研究，以便将物种组成方面的差异性与海藻的覆盖面积、沉淀增长等联系起来。
These similarities are then examined against measured environmental variables to link differences in species composition with algal cover in creased sedimentation etc.
当空间异质性较高时，面积对鸟类物种数的影响是明显的。
The effect of area on the Numbers of bird species is obvious if the spatial heterogeneity is diverse.
我们希望通过保护和尽可能的扩大雨林面积，这个物种能够靠自己在这片土地上得以存活，成长兴旺。
By preserving and hopefully extending the rainforest it is hoped that this beautiful but shy species can be left to its own devices - and thrive.
线采样系统提出以线状样区代替以往成数抽样中的点样区与面积样区概念，通过统计线状样区内作物种植面积成数来反映区域总体农作物种植面积成数。
The GVG system is a new solution, with the conception of sampling lineage instead of the traditional sampling point or sampling area, to extracting crop acreage information.
同时，根据各海拔群落观测物种数与估计物种数的差异，进一步验证了最小取样面积的合理性。
By comparing the difference between estimated number of species and the number of observed species, rationality of critical sampling area for different communities were validated.
人类活动已经大面积地破坏了许多物种的栖息之地，现如今已经变得稀少。
Human actions have destroyed large areas where these and many other species live. They are now rare.
水稻是信阳市最主要的农作物之一，水稻种植面积占全市农作物种植总面积的84%。
Rice is one of the important crop in Xinyang City, rice plant area is 84% in the whole crop area.
中国不仅是当今世界上国土面积最大的国家之一，也是世界上生物种类最丰富的国家之一。
China is one of the largest countries in the world, as well as one having the richest fauna and flora.
粮食作物种植面积减少，但蔬菜、经济作物种植面积增加。
So the area of food crops decreased but the vegetables and cash crops planting area increased.
广西是中国喀斯特地貌发育面积最大、最完整的区域之一，其上孕育的特殊森林植被和丰富多样的植物物种又是国内其它地区所无法比拟的。
Guangxi is the largest ang the most complete regional areas of karst landforms in Guangxi. The birth of the special forest vegetation and variety of plants on karst areas is unique.
广西是中国喀斯特地貌发育面积最大、最完整的区域之一，其上孕育的特殊森林植被和丰富多样的植物物种又是国内其它地区所无法比拟的。
Guangxi is the largest ang the most complete regional areas of karst landforms in Guangxi. The birth of the special forest vegetation and variety of plants on karst areas is unique.
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