Data from: Predators, energetics and fitness drive neonatal reproductive failure in red squirrels

Studd EK, Boutin S, McAdam AG, Krebs CJ, Humphries MM

Date Published: August 8, 2014

DOI: http://dx.doi.org/10.5061/dryad.bj852

 

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Title Reproductive failure of red squirrels and associated measurements
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Description Data collected in the field from 1989 to 2012 on reproductive failure in red squirrels and associated variables. Columns are: LitID- litter ID # in analysis, Grid - study area in which squirrel was living, YR - Year of reproductive attempt, LN - reproductive attempt number of that year for the female (all are the first litter), BDATE - estimated parturition date of litter (based on live trap monitoring of females), FoodSup - whether squirrels were provided food supplementation (1) or not (0), MOMID - unique ear tag numbers of female squirrels, litsize - number of pups in litter, PCI - previous years spruce cone index (log transformed), weas - annual average number of weasel tracks/100km counted in area, marten - annual average number of marten tracks/100km counted in area, pYRSurv - proportion of that years cohort of juveniles that survived the winter to the following year, cold - coldest 4-day average temperature experienced during the first 14 days of lactation (Environment Canada’s National Climate Data and Information Archive (www.climate.weatheroffice.gc.ca)), mBY - birth year of the female, pred - annual average number of mustelid (marten and weasel) tracks/100km counted in area, MAge - maternal age.
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When using this data, please cite the original publication:

Studd EK, Boutin S, McAdam AG, Krebs CJ, Humphries MM (2015) Predators, energetics and fitness drive neonatal reproductive failure in red squirrels. Journal of Animal Ecology 84(1): 249-259. http://dx.doi.org/10.1111/1365-2656.12279

Additionally, please cite the Dryad data package:

Studd EK, Boutin S, McAdam AG, Krebs CJ, Humphries MM (2014) Data from: Predators, energetics and fitness drive neonatal reproductive failure in red squirrels. Dryad Digital Repository. http://dx.doi.org/10.5061/dryad.bj852
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