Teeri J A, Livingstone D A
Barnes Laboratory, The University of Chicago, 5630 S. Ingleside Avenue, 60637, Chicago, IL, USA.
Oecologia. 1980 Dec;47(3):307-310. doi: 10.1007/BF00398522.
The percent of species of the Cyperaceae possessing the C pathway was calculated for twenty-five regions of North America. A stepwise multiple regression analysis was used to determine which climatic variables were most highly correlated with the percent C species among the various regions. The square of the mean July minimum daily temperature exhibited the strongest correlation with the transformed percentage of C species. It appears that the relationship to climatic variables of the C species of the Cyperaceae is similar, but not identical to the relationship previously reported for C species of the Gramineae.
计算了北美25个地区拥有C途径的莎草科物种的百分比。采用逐步多元回归分析来确定哪些气候变量与不同地区C物种的百分比相关性最高。7月平均每日最低气温的平方与C物种转化后的百分比表现出最强的相关性。莎草科C物种与气候变量的关系似乎与之前报道的禾本科C物种的关系相似，但并不相同。
