Mayflies: Mayfly Abundance
In dereksonderegger/dsData: Datasets for Teaching
Description
Usage
Format
References
Description
Because mayflies are sensitive to metal pollution, we might be interested in
looking at the presence/absence of mayflies in a stream relative to a pollution
gradient. This simulated dataset gives a pollution gradient is measured in
Cumulative Criterion Units (CCU), where CCU is defined as the ratio of the
measured metal concentration to the hardness adjusted chronic criterion
concentration, and then summed across each metal. Large values of CCU
imply more metal pollution.
Usage
1
Format
A data frame with 30 observations, with two columns
- CCU
Heavy metal pollution index (higher is more pollution).
- Occupancy
Whether Mayflies were present at the site.
References
This dataset was inspired by: Sonderegger, D.L., Wang, H.,
Clements, W.H., and Noon, B.R. (2009) Using SiZer to detect thresholds in
ecological data. Frontiers in Ecology and the Environment 7:190-195.
dereksonderegger/dsData documentation built on Nov. 22, 2020, 5:15 p.m.
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Description Usage Format References
Description
Because mayflies are sensitive to metal pollution, we might be interested in looking at the presence/absence of mayflies in a stream relative to a pollution gradient. This simulated dataset gives a pollution gradient is measured in Cumulative Criterion Units (CCU), where CCU is defined as the ratio of the measured metal concentration to the hardness adjusted chronic criterion concentration, and then summed across each metal. Large values of CCU imply more metal pollution.
Usage
1 |
Format
A data frame with 30 observations, with two columns
- CCU
Heavy metal pollution index (higher is more pollution).
- Occupancy
Whether Mayflies were present at the site.
References
This dataset was inspired by: Sonderegger, D.L., Wang, H., Clements, W.H., and Noon, B.R. (2009) Using SiZer to detect thresholds in ecological data. Frontiers in Ecology and the Environment 7:190-195.
R Package Documentation
Browse R Packages
We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
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