The researchers suggest this animal survived because of high levels of fecundity and ecological flexibility and continuing low levels of isolation by distance.
研究者指出，驯鹿存活了下来是因为高产、高的生态环境适应性以及持续的由距离引起低隔离程度。
2
The isolation of the rural world because of distance and the lack of tansport facilities is compounded by the paucity of the information media.
由于距离远，又缺乏交通工具，农村社会与外界是隔绝的。而通讯工具的不足则使这种。
3
The isolation of the mountain areas because of distance and the lack of transport facilities is compounded by the paucity of the information media.