weaver dataset

Oxidative stress and group size in social weaver birds

Data from an experiment looking at the oxidative stress brought on by reproduction in white-browed sparrow weavers Plocepasser mahali. The birds live in groups but only one pair reproduces. Either eggs were left alone or some eggs were removed to reduce the stress caused by reproduction. Two measures of oxidative stress were made. data

data("weaver")

Format

A data frame with 34 observations on the following 6 variables.

• Bird_ID: Individual bird identifier
• Treatment: either control (eggs left) or some eggs removed to reduce the cost of reproduction
• GrpSize: Size of the social group
• SOD_final: Superoxide dismutase activity
• MDA_final: Malondialdehyde concentration
• mass_final: mass of the bird in g

Source

Cram, Dominic L.; Blount, Jonathan D.; Young, Andrew J. (2015), Data from: The oxidative costs of reproduction are group-size dependent in a wild cooperative breeder, Dryad, Dataset, https://doi.org/10.5061/dryad.j1305

References

Cram, D.L., Blount, J.D. & Young, A.J. (2015) The oxidative costs of reproduction are group-size dependent in a wild cooperative breeder. Proceedings. Biological sciences / The Royal Society, 282, 20152031.

Examples

data(weaver)
str(weaver)