ERIC Number: ED233879
Record Type: Non-Journal
Publication Date: 1982
Reference Count: N/A
Estimating Aquatic Insect Populations. Introduction to Sampling.
Chihuahuan Desert Research Inst., Alpine, TX.
This booklet introduces high school and junior high school students to the major groups of aquatic insects and to population sampling techniques. Chapter 1 consists of a short field guide which can be used to identify five separate orders of aquatic insects: odonata (dragonflies and damselflies); ephemeroptera (mayflies); diptera (true flies); coleoptera (beetles); and hemiptera (true bugs). In addition, members of the coleoptera and hemiptera can be keyed to family. Pertinent illustrations are included. Chapter 2 includes a discussion of and procedures for the mark-capture technique, a method that biologists use to estimate the size of a wild population. Although other methods can be used, the mark-capture works particularly well in estimating the population of aquatic insects in a single, small body of water on a given day. In addition, the concepts of randomness, ratio, and proportion are stressed in the chapter. Team and class data sheets for insect population sampling are included. (JN)
Descriptors: Animals, Biology, Entomology, Estimation (Mathematics), Field Studies, Laboratory Procedures, Sampling, Science Education, Science Experiments, Secondary Education, Secondary School Science, Wildlife
Chihuahuan Desert Research Institute, Education Dept., Box 1334, Alpine, TX 79831 (single copy, $0.40; class set of 30, $10.00).
Publication Type: Guides - Classroom - Learner
Education Level: N/A
Authoring Institution: Chihuahuan Desert Research Inst., Alpine, TX.