DOI: 10.5061/dryad.4b8gtht8x
title: Data from: Photoperiod sensitive plants have lower levels of flowering time advancement

description: Over the last few decades, many plant species have shown significant
 advances in the date on which they germinate, flush their leaves or begin
 flowering. However, some species are not changing their phenology and risk
 falling behind as their competitors and pollinators adapt to the warming
 climate. In this study, we tested the idea that photoperiod-sensitive
 species are less likely to advance their flowering time than species
 without photoperiod sensitivity and look for ways to predict which species
 are sensitive to photoperiod using phenology and two life history
 characteristics. We found that on average, plants that respond to long
 daylengths (over 12 hours) are not changing their flowering time as
 rapidly as plants that respond to short daylengths (under 12 hours) or
 plants with no photoperiod requirements. It is not possible to predict
 which species are sensitive to photoperiod with phylogeny, but herbs and
 annual species are more likely to be photoperiod-sensitive than are woody
 or perennial species. In the past, photoperiod sensitivity may have helped
 plants ignore unseasonal weather extremes. Our findings suggests plants
 with long-day photoperiod requirements are responding differently to
 climate change than other plants.
description: Data was compiled from an ISI Web of Science keyword search and
 additional papers and reference books were added by looking through
 references of those identified in the search, as well as highly cited
 literature reviews on photoperiod sensitivity. Data was manually entered
 after each source was read and species names were checked against The
 Plant List (http://www.theplantlist.org/).
description: Data gathered in the literature search for this study containing
 species, type of photoperiod sensitivity, whether there is a photoperiod
 requirement (y/n), source and notes collected on the photoperiod
 requirements for flowering. README contain extra
 information about using the data.
description: # Data from: Photoperiod sensitive plants have lower levels of flowering
 time advancement
 [https://doi.org/10.5061/dryad.4b8gtht8x](https://doi.org/10.5061/dryad.4b8gtht8x) Note that "null" indicates blank cells, whereas "na" means that a plant has been recorded as having no photoperiod requirements. ## Description of the data and file structure ## I. Details Appendix 1: Photoperiod Sensitivity Csv table with raw data manually entered for "Photoperiod Sensitive plants have lower rate of flowering time advancement". ## II. Data Fields species = species name photoperiodism = photoperiod sensitivity type (na = not photoperiod, ld = long-day, sd = short day, id = intermediate-day, sld/lsd = combinations of long and short day, ad = ambiphotoperiodic, yes = photoperiod responsive) cultivar = cultivar status if available reference = where the information was obtained notes sensitivity_yn = photoperiodism converted to logical format ## I. Details Appendix 2: Flowering Time Csv table with combined data for "Photoperiod Sensitive plants have lower rate of flowering time advancement". ## II. Data Fields species = species name doy = "day of year" where first flowering was observed for that year (in leap-years number was multiplied by 365/366 to maintain consistency with non-leap years) year = year in which the first flowering was observed source = original source of data