Archaeologists identify a corresponding shift in populations toward the south and west toward MesaVerde and away from higher elevations.
考古学家发现了一个人口迁移现象，人们向西部、南部的梅萨维德地区搬迁，离开了高海拔地区。
2
In the face of all these pushes, people in the MesaVerde area had yet another reason to move into communal villages: the need for greater cooperation.
在所有这些推动力面前，梅萨维德地区的人们提出了另外一个搬进公共村庄的理由：他们需要更多合作的机会。
3
The environmental changes associated with this transition are not fully understood, but people living closest to the San Juan Mountains, to the northeast of MesaVerde, were affected first.