The video introduces distance sampling as a method for estimating wildlife populations, differentiating it from plot sampling and discussing its application in wildlife population assessment. It explains the importance of understanding population trends and the challenges of various estimation methods, emphasizing the need for accurate and representative sampling techniques.

Eric Rexed introduces the fundamentals of distance sampling, a method used for estimating wildlife populations. He explains its relationship to wildlife population assessment, differentiates it from plot sampling, and discusses its application in understanding population trends and making future projections.

The chapter discusses various methods for estimating population size when a complete census is not feasible. It focuses on plot sampling and distance sampling, explaining how these methods can be used to derive estimates of animal density and abundance, while also highlighting the challenges and assumptions involved in these techniques.

The chapter explains the method of estimating population size using plot sampling, specifically through strip transects. It details the process of calculating the area covered, counting individuals within sampled plots, and extrapolating these counts to estimate the total population in the study area.