sentences:  These forests have important lumber species such as mahogany and cedar trees and a broad panoply of other broadleaf tree species as well as numerous lianas.Fauna include the jaguar, margay, tapir and venomous pit viper Fer-de-lance, "Bothrops asper".Along the middle and lower reaches, the forest is secondary, betraying the heritage of banana farms and slash-and-burn practises used historically in this area.