Bullfrogs: Reproductive success of male bullfrogs

Description Usage Format Source References Examples

Description

Raw data from the Howard (1979) study on sexual selection on body size in male Rana catesbeiana bullfrogs during 1976. These data were transcribed from Table 1 in Howard (1979) and then formatted for use in this R package. Bullfrogs contains the following variables:

BodySize_mm

Body size of the individual, based on snout-ischium length in millimeters

wTotalCops

Relative fitness for mating success (sexual selection), based on the total number of copulations.

wTotalZygotes

Relative fitness for fertility per mate (natural selection), based on the total number of zygotes produced.

wTotalHatchlings

Relative fitness for offspring survivorship (natural selection), based on the total number of hatchlings surviving.

WTotalCops

Absolute fitness for mating success (sexual selection), based on the total number of copulations.

WTotalZygotes

Absolute fitness for fertility per mate (natural selection), based on the total number of zygotes produced.

WTotalHatchlings

Absolute fitness for offspring survivorship (natural selection), based on the total number of hatchlings surviving.

Ind

Individual identification number. Note: one individual had a multi-number ID (i.e., 3-7) and another was not assigned a specific ID and was designated as "NA".

Usage

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Format

data.frame with 38 observations and 8 variables

Source

These data were obtained from Table 1 in Howard (1979): http://www.jstor.org/stable/2460219.

References

Howard RD. 1979. Estimating reproductive success in natural populations. American Naturalist 114(2):221-231. http://dx.doi.org/10.1086/667586

Examples

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# Load the data
data(Bullfrogs)

# Look at the structure of the data.frame
str(Bullfrogs)

# Run a linear regression with w.TotalCops as the response and the morphological traits as the predictors
lm(wTotalZygotes ~ BodySize.mm, data=Bullfrogs)

MorphoFun/psa documentation built on May 7, 2019, 4:59 p.m.