Phenological data on the start and end of the flight season of European damselflies

Data on the day of the year when the flight season of 15 European species of damselfies start ("Spring") and end ("Fall") based on literature records. Literature refererence IDs ("Ref") correspond to numbers used in Appendix B of the corresponding article and the records are graded from 1 to 4 based on their quality ("Quality"), with 4 being the most reliable

growthdata

Data on the growth of damselfly larvae when reared in microcosms under seasonally fluctuating temperatures. Growth is measured as larval headwidths (in mm) at the age of 0, 42, 84 and 136 days

temp_treatments

Temperature treatments used in the microcosms experiment on damselfly larvae. The two treatments mimic the temperature seasonality currently experienced at the sampled sites, and that predicted for these sites under climate change. Temperatures are given as the water temperature experienced in the microcosms on each day of the experiment

mortalitydata

Data on the survival of damsefly larvae when reared together or alone in microcosms under seasonally fluctuating temperatures. Survival is measured as the number of individuals alive on day 136 of the experiment

Appendix C. Tables showing results from Tukey’s HSD tests on larval head widths.

Tables showing results from Tukey’s HSD tests on larval head widths

Supplement 1. Raw data from the common garden and microcosm experiments, and R code for calculating relative growth rates and producing Fig. 1 and Table 2.

<h2>File List</h2><div> <p><a href="Labdata_ecology.txt">Labdata_ecology.txt</a> (MD5: b3a81f9c1ac9e672ffd7611a6a8eb085) -- Larval growth data, common garden</p> <p><a href="Microcosmdata_ecology.txt">Microcosmdata_ecology.txt</a> (MD5: 31305d93de45b80d1e54fe57e1366aa5) -- Larval growth data, microcosms</p> <p><a href="NilssonOrtman_Competition.R">NilssonOrtman_Competition.R</a> (MD5: a964c0e77773b43e43e45a7292174960) -- R code for calculating and analyzing RGRs</p> </div><h2>Description</h2><div> <p>The supplements are designed to allow the reader to understand the calculations of Relative Growth Rates in each of the two experiments, to run the statistical analysis of growth rate data used to produce Table 1 and Fig. 1 the Main text. To run the code included in the supplements requires an installation of the statistical package R and the R packages polynom, sampling, plyr and phia. The first supplement, labdata_ecology.txt, contains the raw data from the common garden experiment. The second supplement, microcosmdata_ecology.txt, contains the raw data from the common garden experiment. Using the R code in the third supplement, NilssonOrtman_Competition.R, together with the data in the two data files allows the reader to recreate Fig. 1 and Table 1 in the Main text.</p> </div

Progression of photoperiod (including half the Civil Twilights at sunrise and sunset) at five different latitudes between 52°N and 67°N.

<p>Filled circles connected by solid lines represent the two photoperiod treatments used during the experiment (northern, 64°N, above and southern, 52°N, below). Open circles connected by dashed lines represent photoperiods at latitudes where study damselflies were sampled (67°N, 66°N, and 62°N from the highest to the lowest lines, respectively). Arrows indicate dates of the start of the experiment (“Start”), the initiation of winter conditions (“Winter”), and the initiation of spring conditions (“Spring”).</p

Appendix B. Supplementary figures showing the larval size distribution at hatching, illustrating how growth rates were calculated in the microcosm experiment using stratified resampling, and a comparison of temporal changes in the size distribution of larvae in the intra- and interspecific treatment groups.

Supplementary figures showing the larval size distribution at hatching, illustrating how growth rates were calculated in the microcosm experiment using stratified resampling, and a comparison of temporal changes in the size distribution of larvae in the intra- and interspecific treatment groups

Appendix A. Additional details on the microcosm and common garden experiments.

Additional details on the microcosm and common garden experiments

Head width of field collected adults of <i>C. johanssoni</i> originating from three different latitudinal regions across Sweden.

<p>Shading symbols indicate mean (95% CI) adult head width of different populations in each sampled region. Note that individuals from the second population sampled from the northernmost part of Sweden (marked with grey shading) were not included in the laboratory rearing experiment.</p