***************************** SIMAO et al. 2018 Bees, Flowers, Urban Landscapes, Management ***************************** File created 4 Dec 2017 ***************************** These data files accompany: Simao, M.C.M., Matthijs, J., Perfecto, I. 2018. “Experimental small-scale flower patches increase species density but not abundance of small urban bees”, Journal of Applied Ecology XX: xxx-xxx. ***************************** CONTENTS 1. Data.csv – This file provides the complete data set from 2015 and 2016. There is no landscape flower data (FlwAbun and FlwRich variables) for the first sampling session in 2015 (S1, or June), because it was only after the first round of bee sampling that a decision was made to sample landscape flowers. Full collection methods are described in the article and supplemental materials. Site locality information is provided in an online supplement (Appendix S1) to the article. ***************************** VARIABLE NAMES AND DESCRIPTIONS VARIABLE DESCRIPTION Date Date bees were collected. In YYYY-MM-DD format. Year Sampling year. Session Abbreviation for sampling session. S1 = June, S3 = July, S5 = August. Site Abbreviation for site in Ann Arbor, MI. Most sites on University of Michigan property, details in article and Supplemental Material. Trt Number of pots (out of 10) filled with sweet alyssum flowers at this site. (possibilities include: 0,3,6,10 in 2015, and 1,3,6,10 in 2016) FlwSwtAlysm Estimate of total number of open sweet alyssum flowers at a particular Site (on the specified Date). BeeAbun Bee Abundance (Total number of bees collected.) BeeSpDensity Bee Species Density (Total number of bee species collected within a standardized area.) BeeAbun.F Female bee abundance (Total number of female bees collected.) BeeABun.M Male bee abundance (Total number of male bees collected.) BeeAbun.ephialtum.F Number of female Lasioglossum ephialtum bees collected. BeeAbun.ephialtum.M Number of male Lasioglossum ephialtum bees collected. BeeAbun.ephialtum Total number of Lasioglossum ephialtum bees collected. FlwAbun.TotArea Total area of flowers in the landscape (across all sampling circles at a site, in m^2). [Excluding sweet alyssum added for experiment.] FlwAbun.TotArea.SMALL Total area of flowers categorized as 'small' in the landscape (across all sampling circles at a site, m^2)[Excluding sweet alyssum added for experiment.] FlwRich.Avg Average number of flower species recorded per sampling circle. [Excluding sweet alyssum added for experiment.] FlwRichSD Standard deviation of the number of flower species recorded per sampling circle. [Excluding sweet alyssum added for experiment.] StartTime Time pollinator collection started StopTime Time pollinator collection ended Nest.BareSoil Amount of bare soil within 120m of site. Nest.DeadWood Amount of dead wood within 120m of site. Nest.Aspect Amount of inclined land surface within 120m of site. Nest.MulchRock Amount of mulch rock (rocks bigger than gravel) within 120m of site. Nest.Herbacious Amount of herbaceous area (with soil underneath where bees might nest) Nest.BeeTotal Sum of total available nesting space for bees (sums the categories Nest.: BareSoil, DeadWood, Aspect, MulchRock, Herbacious) ***************************