DOI: 10.5061/dryad.bg79cnpnx
title: Data from: Structure of bee communities in marginal lands of the Puget Sound, USA

description: Wild bee communities in urban ecosystems are often challenged by habitat
 fragmentation and low floral diversity. In such settings, marginal land
 surrounding airports or in power line corridors may support bees, even
 with small habitat patches. However, temporal surveys of wild bees are
 lacking for many urban areas such as the Puget Sound region of western
 Washington State, USA. Here, we conducted wild bee surveys at three
 peri-urban sites in the Puget Sound over 7 years. Specifically, a
 standardized protocol was used to sample wild bee communities monthly from
 April to October at two sites associated with airports and one site in a
 power line corridor. In total, our surveys collected 25,441 specimens
 representing 118 confirmed species within 24 genera, with individual
 subsites having between 15 and 35 species in any year. The Halictidae
 represented the most individuals collected, with 47% of specimens. By
 genus, Lasioglossum was the most speciose (n = 21), with Bombus, Osmia,
 and Andrena also ubiquitous and diverse. Bee diversity was high across
 spring and summer, and our surveys resolved the presumptive overlap of
 parasites with their hosts. Our study shows that marginal lands requiring
 little management can support diverse wild bee communities in urban areas.
 Our work also provides a baseline for future evaluations of wild bee
 communities in the Puget Sound and broader Pacific Northwest.
description: # Data from: Structure of bee communities in marginal lands of the Puget
 Sound, USA Dataset DOI: [10.5061/dryad.bg79cnpnx](10.5061/dryad.bg79cnpnx)
 ## Description of the data and file structure Bees were collected from
 marginal lands of the Puget Sound region in western WA (USA) from
 2014-2020. Trap and net collection methods were used at 3 sites: Port of
 Seattle (POS), Boeing Paine Field (BPF), and Seattle City Light (SCL)
 power line corridor. All 25,000 bee specimens collected have been
 identified to genus, and 98.3% have been identified to the species level. 
 **Files and variables** **File: MarginalBees.csv** **Description:**  #####
 Variables * Unique Specimen Number: A unique identifier for each row,
 which may be a single specimen, or many specimens of the same species for
 that collection event. Each row represents a single species and collection
 event. - Label Date: The date for each collection event as a string
 following the format “yyyymmdd”. * Site: Three letter abbreviation for the
 collection site. There are three sites, POS, BPF, and SCL. May contain NA
 values. - Display Date: Same as Label Date but in the format “DD-MMM-YY”.
 * Station: The subsite “station”. There are multiple stations per site.
 May contain NA values. - Collection Method: The method by which the
 specimen(s) was/were collected, either T for “trap” or N for “net”. May
 contain NA values. * Specimen Kind: How the specimen is stored, either P
 for “pinned” or V for “vial”. - Genus: Genus identification. * Subgenus:
 Subgenus identification. May contain NA values. - Species: Species
 identification. * Subspecies: Subspecies identification. May contain NA
 values. - New record: Binary Y/N whether the specimen is a new record
 (state, county, etc.). See main manuscript for more details about
 state/county records. * Label Name: A combination of Genus, Subgenus (if
 any), and Species. - Short label name: Genus, species nomenclature. * Sex:
 M for “male”, and F for “female”. May contain NA values. - Voucher
 Specimen: Binary Y/N describing whether the specimen is vouchered in the
 curated collection. May contain NA values. * Questionable or Incomplete
 Identification: Binary Y/N whether the specimen identification is
 incomplete. May contain NA values. - Broken Specimen: Binary Y/N whether
 the specimen was damaged. May contain NA values. * Entered by: Initials of
 the person who entered the specimen data. - Entered Date: Date at which
 the data was entered. * NOTES: Notes about the specimens. May contain NA
 values. - Count: This column denotes the number of individuals in each
 record. Most rows are 1, but some rows represent hundreds of bees of the
 same species from the same trap. **Code/software** The data is saved in
 .csv (comma separated values) format and can be viewed many types of
 software. Code is written in R, with 4 attached R markdown files
 (.Rmd)—composition_analyses.Rmd,genus_plots_v2.Rmd,ridge_plots.Rmd,
 and SAC_and_Chao.Rmd. Each markdown file contains all data preparation
 necessary to generate all analyses and figures reported in the manuscript
 and supplemental materials. These scripts were written within an R project
 so the working directory is set to find the root directory. If this is an
 unfamiliar workflow, simply save the data to a local folder, and select
 that folder as the working directory when running these scripts. All code
 was written in R V4.2.3. You will need rmarkdown_2.27, knitr_1.47,
 caret_6.0-94, randomForest_4.7-1.1, vegan_2.6-6.1, lattice.0.20-45,
 permute.0.9-7, cowplot.1.1.3, tidyverse.2.0.0, ggridges.0.5.6,
 sjPlot.2.8.16, fossil_0.4.0. **Access information** Other publicly
 accessible locations of the data: *
 [https://github.com/andersonrm/BeeSearch/tree/main](https://github.com/andersonrm/BeeSearch/tree/main) Data was derived from the following sources: * NA