r data how to find the species response what is the relationship between dryness and elevation in the r model how to model dryness and elevation what is the difference between dryness and elevation in r does dryness change during each site visit how many traps do i need to see species what is the function of r if a species is trapped at a site what is the relationship between dryness and elevation of plants how to find the relationship between dryness and elevation of a site how are dryness and elevation determined which factor does the species response to the dryness of the traps in the site what is the function for r to show species how to determine the presence and absence of two species how is dryness measured in traps how is dryness measured how to find out the difference between dryness and elevation in the data which variable is the only function of a data table? what is the difference between dryness and elevation data how to measure dryness how does dryness change between different trap locations