Figure 2
From: What mechanism of niche segregation allows the coexistence of sympatric sibling rhinolophid bats?
CART model for habitat use by R. mehelyi and R. euryale in sympatry. Classification and regression tree model for differential habitat use by R. mehelyi and R. euryale in sympatric conditions in Villuercas (Spain). The response variables are presence of R. mehelyi and R. euryale and the explanatory variables are habitat type, distance to water, canopy perimeter, and canopy cover. Top node represents training data set (60% of entire data set), non-terminal nodes represent data splits, and terminal nodes represent homogeneous classes. All nodes are labelled with their determining variable’s value/category and the number of foraging fixes for both species in each group (italicised and in brackets), as well as probability of finding a foraging R. mehelyi or R. euryale (in parentheses). An illustration of how to use the CART model: in any site where habitat type is dehesa, olive grove, or riparian forest (follow middle branch in the 1st node habitat type), if distance to water is more than 100 m (follow right branch in the 2nd node distance to water), the resulting probability of this site being used for foraging by R. mehelyi is 0.16, whereas the probability for R. euryale is 0.84.