snowmelt: How flowering time relates to snowmelt date

In ecostats: Code and Data Accompanying the Eco-Stats Text (Warton 2022)

How flowering time relates to snowmelt date

Description

Data from a study of how time from snowmelt to flowering relates to snowmelt date and elevation (Wheeler et al 2016) in Salix herbacea, based on about 120 plots on each of three mountains in the Swiss Alps.

Usage

data(snowmelt)

Format

A dataframe containing:

id

Plot patch ID

flow

Number of days from snowmelt day to flowering

snow

Snowmelt day of year

sex

Sex of patch, corrected across years, NA - no flowering, 0 - male, 1 - female

elev

Elevation (from dGPS)

References

Wheeler, J. A., Cortés, A. J., Sedlacek, J., Karrenberg, S., van Kleunen, M., Wipf, S., Hoch G., Bossdorf, O. & Rixen C. (2016) The snow and the willows: earlier spring snowmelt reduces performance in the low-lying alpine shrub Salix herbacea. Journal of Ecology 104, 1041-50.

Examples

data(snowmelt)
plot(flow~snow,data=snowmelt, log="y")

ecostats documentation built on July 4, 2024, 9:06 a.m.