Time series of butterfly populations made available by Roland and Metter (2016).
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A tibble with ninety-nine variables:
year
Year
meada
Letter designating each of the 21 meadows/subpopulations
Nt
estimate of population size in year
logNt
log10-transformed estimate of population size (plus 0.5) in year
Rt
Rate of population growth from year
to year+1
maxsnow
Maximum recorded amount of snow for the entire winter (mm water-equivalent)
datesnowmelt
Julian date in spring on which snow amount declined to 150mm water equivalent
jansnow
Amount of snow on the ground on January 15 of year+1
jansnowfall
Amount of snow that has fallen since December 15 of year
janmean
Mean temperature (deg C) for the month of January
janmeanmax
Mean maximum temperature for January
janmeanmin
Mean minimum temperature for January
janextmax
Extreme maximum temperature recorded in January
janextmin
Extreme minimum temperature recorded in January
febsnow
Amount of snow on the ground on February 15 of year+1
febsnowfall
Amount of snow that has fallen since January 15 of year
febmean
Mean temperature (deg C) for the month of February
febmeanmax
Mean maximum temperature for February
febmeanmin
Mean minimum temperature for February
febextmax
Extreme maximum temperature recorded in February
febextmin
Extreme minimum temperature recorded in February
marsnow
Amount of snow on the ground on March 15 of year+1
marsnowfall
Amount of snow that has fallen since February 15 of year
marmean
Mean temperature (deg C) for the month of March
marmeanmax
Mean maximum temperature for March
marmeanmin
Mean minimum temperature for March
marextmax
Extreme maximum temperature recorded in March
marextmin
Extreme minimum temperature recorded in March
aprsnow
Amount of snow on the ground on April 15 of year+1
aprsnowfall
Amount of snow that has fallen since March 15 of year
aprmean
Mean temperature (deg C) for the month of April
aprmeanmax
Mean maximum temperature for April
aprmeanmin
Mean minimum temperature for April
aprextmax
Extreme maximum temperature recorded in April
aprextmin
Extreme minimum temperature recorded in April
maysnow
Amount of snow on the ground on May 15 of year+1
maysnowfall
Amount of snow that has fallen since April 15 of year
maymean
Mean temperature (deg C) for the month of May
maymeanmax
Mean maximum temperature for May
maymeanmin
Mean minimum temperature for May
mayextmax
Extreme maximum temperature recorded in May
mayextmin
Extreme minimum temperature recorded in May
junsnow
Amount of snow on the ground on June 15 of year+1
junsnowfall
Amount of snow that has fallen since May 15 of year
junmean
Mean temperature (deg C) for the month of June
junmeanmax
Mean maximum temperature for June
junmeanmin
Mean minimum temperature for June
junextmax
Extreme maximum temperature recorded in June
junextmin
Extreme minimum temperature recorded in June
julsnow
Amount of snow on the ground on July 15 of year+1
julsnowfall
Amount of snow that has fallen since June 15 of year
julmean
Mean temperature (deg C) for the month of July
julmeanmax
Mean maximum temperature for July
julmeanmin
Mean minimum temperature for July
julextmax
Extreme maximum temperature recorded in July
julextmin
Extreme minimum temperature recorded in July
augsnow
Amount of snow on the ground on August 15 of year+1
augsnowfall
Amount of snow that has fallen since July 15 of year
augmean
Mean temperature (deg C) for the month of August
augmeanmax
Mean maximum temperature for August
augmeanmin
Mean minimum temperature for August
augextmax
Extreme maximum temperature recorded in August
augextmin
Extreme minimum temperature recorded in August
sepsnow
Amount of snow on the ground on September 15 of year+1
sepsnowfall
Amount of snow that has fallen since August 15 of year
sepmean
Mean temperature (deg C) for the month of September
sepmeanmax
Mean maximum temperature for September
sepmeanmin
Mean minimum temperature for September
sepextmax
Extreme maximum temperature recorded in September
sepextmin
Extreme minimum temperature recorded in September
octsnow
Amount of snow on the ground on October 15 of year+1
octsnowfall
Amount of snow that has fallen since September 15 of year
octmean
Mean temperature (deg C) for the month of October
octmeanmax
Mean maximum temperature for October
octmeanmin
Mean minimum temperature for October
octextmax
Extreme maximum temperature recorded in October
octextmin
Extreme minimum temperature recorded in October
novsnow
Amount of snow on the ground on November 15 of year+1
novsnowfall
Amount of snow that has fallen since October 15 of year
novmean
Mean temperature (deg C) for the month of November
novmeanmax
Mean maximum temperature for November
novmeanmin
Mean minimum temperature for November
novextmax
Extreme maximum temperature recorded in November
novextmin
Extreme minimum temperature recorded in November
decsnow
Amount of snow on the ground on December 15 of year+1
decsnowfall
Amount of snow that has fallen since November 15 of year
decmean
Mean temperature (deg C) for the month of December
decmeanmax
Mean maximum temperature for December
decmeanmin
Mean minimum temperature for December
decextmax
Extreme maximum temperature recorded in December
decextmin
Extreme minimum temperature recorded in December
aprraint
Rainfall (mm) in April of year
mayraint
Rainfall (mm) in May of year
junraint
Rainfall (mm) in June of year
julraint
Rainfall (mm) in July of year
augraint
Rainfall (mm) in August of year
aprraintmn1
Rainfall (mm) in April of year-1
mayraintmn1
Rainfall (mm) in May of year-1
junraintmn1
Rainfall (mm) in June of year-1
julraintmn1
Rainfall (mm) in July of year-1
augraintmn1
Rainfall (mm) in August of year-1
sumraint
Total rainfall (mm) from May through July in year
sumraintmn1
Total rainfall (mm) from May through July in year-1
Note: This dataset is a subset of the full Roland and Matter data. We restricted the data to subpopulations (meadows) that had an observation in each year of the time series. This is 11 out of 21 meadows. For further details, see https://datadryad.org/resource/doi:10.5061/dryad.tp324
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