UBC Research Data

Data from: Flowering time of butterfly nectar food plants is more sensitive to temperature than the timing of butterfly adult flight Kharouba, Heather M.; Vellend, Mark


1. Variation among species in their phenological responses to temperature change suggests that shifts in the relative timing of key life cycle events between interacting species are likely to occur under climate warming. However, it remains difficult to predict the prevalence and magnitude of these shifts given that there have been few comparisons of phenological sensitivities to temperature across interacting species. 2. Here, we used a broad-scale approach utilizing collection records to compare the temperature sensitivity of the timing of adult flight in butterflies vs. flowering of their potential nectar food plants (days per °C) across space and time in British Columbia, Canada. 3. On average, the phenology of both butterflies and plants advanced in response to warmer temperatures. However, the two taxa were differentially sensitive to temperature across space vs. across time, indicating the additional importance of nontemperature cues and/or local adaptation for many species. 4. Across butterfly–plant associations, flowering time was significantly more sensitive to temperature than the timing of butterfly flight and these sensitivities were not correlated. 4. Our results indicate that warming-driven shifts in the relative timing of life cycle events between butterflies and plants are likely to be prevalent, but that predicting the magnitude and direction of such changes in particular cases is going to require detailed, fine-scale data.; Usage notes
Phenological data for select plant species in British Columbia, CanadaThis data was compiled from the University of British Columbia Herbarium. Each row represents a specimen that was in flower at the time of collection. 'Accession' is the unique identifier associated with the specimen that is found in the herbarium database. 'Vegetation' is the type of vegetation (tree, shrub, herbaceous). 'Family' is the species' family. 'Day/month/year' is the date associated with the specimen. 'x' is the longitude and 'y' is the latitude associated with the record. These coordinates were either listed directly on the specimen or achieved by georeferencing by the museum or by the authors. Georeferencing was done using locality descriptions on the specimen. 'Uncertainty (in meters)' is the uncertainty associated with the geographic coordinates achieved by georeferencing that was quantified whenever possible.dryad_plants.csv

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