Fix dodgy sentence

15-eco.Rmd

@@ -26,7 +26,7 @@ library(vegan)             # community ecology package
 ## Introduction
 
 This chapter models the floristic gradient of fog oases to reveal distinctive vegetation belts that are clearly controlled by water availability.
-The example, building on previous applied chapters, provides an opportunity to bring together and extend concepts presented in previous, to further enhance your skills at using R for geocomputation.
+The case study provides an opportunity to bring together and extend concepts presented in previous, chapters to further enhance your skills at using R for geocomputation.
 
 Fog oases, locally called *lomas*, are ecological systems found in the mountains along the coastal deserts of Peru and Chile.
 Similar ecosystems can be found elsewhere, including in the deserts of Namibia and along the coasts of Yemen and Oman [@galletti_land_2016].