ZOOL 469 Lecture Notes - Lecture 1: Lead, Toxicodendron Radicans, Fumigation
Document Summary
Chapter 11 estimating animal abundance12/1/2014 4:08:00 pm. Know which formula and how to use it. Easiest est of pop u can get. Little or no attempt to correct for incomplete detection or variable detection probability. Frequency (# of indiv animals or animal sign) information along transects, at quadrats, or points. Useful to compete relative animal number between treatments. Enumeration of the whole population ( ie. variability is present because you counted them all) Use if you have a small population. Data resulting from census should viewed skeptically biased. Fixed area: try to count limited sample areas. Point counts stand in one point and count every animal. Probability proportional to size (unequal sample areas based on availability if habitat in the stud area: strip count. D = sigma xi / sigma a. X = number of animals on transect x. A = area of each strip l x w. Estimated area": area sampled estimated from counts.
