In Section 13.1, we introduce line and point transects and the objectives of density estimation methods. Then in sections 13.2-13.4, we will discuss three types of density estimation methods for line transects problems. In section 13.2, we will talk about the narrow strip method. In section 13.3, we will discuss the smooth-by-eye method and in section 13.4, we will discuss parametric methods.

 Lesson 13:  Ch. 17.1-17.4 of Sampling by Steven Thompson, 3rd edition.