ex2414: Amphibian Crisis and UV-B

Description Usage Format Source References Examples

Description

Data frame contains the percentage of unsuccessful hatching from enclosures containing 150 eggs each in a study to investigate whether UV-B is responsible for low hatch rates.

Usage

1

Format

A data frame with 71 observations on the following 4 variables.

Percent

percentage of frog eggs failing to hatch

Treatment

factor variable with levels "NoFilter", "UV-BTransmitting" and "UV-BBlocking"

Location

factor variable with levels "ThreeCreeks", "SparksLake", "SmallLake" and "LostLake"

Photolyase

Photolyase activity

Source

Ramsey, F.L. and Schafer, D.W. (2013). The Statistical Sleuth: A Course in Methods of Data Analysis (3rd ed), Cengage Learning.

References

Blaustein, A.R., Hoffman, P.D., Hokit, D.G., Kiesecker, J.M., Walls, S.C. and Hays, J.B. (1994). UV Repair and Resistance to Solar UV-B in Amphibian Eggs: A Link to Population Declines? Proceedings of the National Academy of Science, USA 91: 1791–1795.

Examples

1

Sleuth3 documentation built on May 31, 2017, 1:56 a.m.