The impact of forest thinning on microclimate in monarch butterfly ( Danaus pexippus L.) overwintering areas of Mexico

The effect of forest density on minimum temperature was measured in several Abies religiosa forest quadrants located in and near colonies of the monarch butterfly ( Danaus pexippus ), in the Neovolcanic Belt of Mexico. Regression analysis with forest density, altitude and date of the studies show that the minimum temperature is an inverse function of forest density. The date of the studies and the altitude were also important components of the...