DOI: 10.5061/dryad.rfj6q57f5
title: Data from: Coleoptera associated with intermittent streams and their riparian zones in south coastal British Columbia

description: Intermittent streams that periodically cease surface flow have long been
 understudied in ecology and underrepresented in conservation policy.
 However, they currently account for 30-50% of the global river network,
 and that number is rising due to anthropogenic water extraction, land-use
 change, and climate change. We explored the Coleoptera biodiversity of the
 south Pacific-coast region of British Columbia, Canada, using pitfall
 traps at perennial and naturally-intermittent stream reaches, in
 shoreline, dry streambed, and riparian habitats, in both flowing
 (spring/early summer) and non-flowing (late summer) phases. We found that
 habitats around perennial reaches had significantly greater abundance of
 Coleoptera than those around intermittent reaches. However, neither
 habitat type nor flow regime were significant predictors of taxon
 richness, and intermittent stream sites featured unique taxa that were not
 found near perennial streams. This aligns with recent results from other
 taxonomic groups, finding that intermittent ecosystems can host high
 taxonomic diversity of Coleoptera, on par with or even greater than that
 of perennial streams. Because intermittent streams will likely become more
 prevalent within the global river network, we urgently need a better
 understanding of how different species use these habitats, which can
 inform appropriate biodiversity conservation efforts and flow management.
description: The dataset was collected in 2021 around four stream reaches in
 coastal British Columbia. Each row of data represents a pooled sample
 comprising six pitfall traps. Traps were deployed in either riparian
 habitat around the streams, or on the streambank (for flowing streams) or
 streambed (for dry streams), for an average of seven days per deployment
 period. Coleoptera individuals were identified to the lowest possible
 taxonomic level in the laboratory, using a microscope, species
 identification keys, and species lists from relevant areas. At the same
 time that pitfall traps were deployed, soil samples were collected from
 the same locations. Soil moisture was calculated by weighing soil samples
 before and after drying them in an oven, and ash-free dry mass (AFDM) was
 calculated after combusting subsamples of soil in a muffle
 furnace.
description: # Reference
 Information ## Provenance for this README * File name:
 README_Schutz_Little_Coleoptera_v1.0.1.txt * Authors: Chelsea J. Little *
 Date created: 2022-10-12 * Date modified: 2022-10-12 ## Dataset Version
 and Release History * Current Version: * Number: 1.0.1 * Date: 2024-11-14
 * Persistent identifier: DOI: 10.5061/dryad.rfj6q57f5 * Summary of
 changes: Correction of species identification for 1 species * Embargo
 Provenance: n/a * Scope of embargo: n/a * Embargo period: n/a ## Dataset
 Attribution and Usage * Dataset Title: Data From: "Coleoptera
 Associated with Intermittent Streams and Their Riparian Zones in South
 Coastal British Columbia" * Persistent Identifier:
 [https://doi.org/10.5061/dryad.rfj6q57f5](https://doi.org/10.5061/dryad.rfj6q57f5) * Dataset Contributors: * Creators: Zoey B. D. Schutz, Chelsea J. Little * Date of Issue: 2022-10-12 * Publisher: Simon Fraser University * License: Use of these data is covered by the following license: * Title: CC0 1.0 Universal (CC0 1.0) * Specification: [https://creativecommons.org/publicdomain/zero/1.0/](https://creativecommons.org/publicdomain/zero/1.0/); the authors respectfully request to be contacted by researchers interested in the re-use of these data so that the possibility of collaboration can be discussed. * Suggested Citations: * Dataset citation: &gt; Little, Chelsea J.; Schutz, Zoey B. D. (2022), Data from: Coleoptera associated with intermittent streams and their riparian zones in south coastal British Columbia, Dryad, Dataset, [https://doi.org/10.5061/dryad.rfj6q57f5](https://doi.org/10.5061/dryad.rfj6q57f5) ## Contact Information * Name: Chelsea J. Little * Affiliations: School of Environmental Science, Simon Fraser University * ORCID ID: [https://orcid.org/0000-0003-2803-7465](https://orcid.org/0000-0003-2803-7465) * Email: [chelsea_little@sfu.ca](mailto:chelsea_little@sfu.ca) * Alternate Email: [chelsea.little.does.ecology@gmail.com](mailto:chelsea.little.does.ecology@gmail.com) * Address: e-mail preferred * Contributor ORCID IDs: * Chelsea J. Little: [https://orcid.org/0000-0003-2803-7465](https://orcid.org/0000-0003-2803-7465) --- # Additional Dataset Metadata ## Acknowledgements * The authors would also like to sincerely thank the shíshálh Nation for granting us permission to conduct field research within their swiya. We are grateful to Ionut Aron at the Malcolm Knapp Research Forest for facilitating our research there, and John Richardson for invaluable advice in identifying study sites there. We thank Sage Dillabough for her help in processing soil and sediment samples. We also thank Thibault Datry for catalyzing this research and providing a sampling protocol through the 1000 Intermittent Rivers project. This project was funded by a Discovery Grant from the Natural Sciences and Engineering Council of Canada. ## Dates and Locations * Dates of data collection: Field data collected between May and August in 2021 * Geographic locations of data collection: Fieldwork conducted in Maple Ridge and Roberts Creek, British Columbia, Canada (see publication for more details) * Other locations pertaining to dataset contents: Wet lab work performed at Simon Fraser University and at Princeton University. --- # Methodological Information * Methods of data collection/generation: see manuscript for details --- # Data and File Overview ## Summary Metrics * File count: 2 * Total file size: 2.8 KB * Range of individual file sizes: 77 bytes - 2 KB * File formats: .csv ## Table of Contents * Schutz_Little_environmental_data.csv * Schutz_Little_Beetle_abundance.csv ## Setup * Unpacking instructions: n/a * Recommended software/tools: RStudio 2022.02.0; R version 4.0.3 --- # File/Folder Details ## Details for: Schutz\_Little\_environmental\_data.csv * Description: a comma-delimited file containing the soil moisture and ash free dry mass (AFDM) data collected at study sites in this research project. * Format(s): .csv * Size(s): 77 bytes * Dimensions: 17 rows x 6 columns * Variables: * Area: Denotes the study area. MKRF = Malcolm Knapp Research Forest, BNK = B&K Trail System. See manuscript for location details. * Stream_Type: The flow regime of the stream where data were collected (Perennial or Intermittent) * Habitat_Type: The type of location where the samples were collected. Riparian = riparian vegetation zone next to the stream; Shore = shoreline within 0.5 meters of stream (for perennial streams or intermittent streams during the flowing period) or the streambed itself (for intermittent streams during the non-flowing phase) * Flow_Period: The time of year where the samples were collected. Flowing = early summer, Non-Flowing = mid/late summer. (See manuscript for dates) * Soil_moisture: The percent moisture of the soil/sediment sample collected (lower and upper bounds: 0, 100). * Percent_AFDM: The ash-free dry mass of the soil/sediment sample collected (lower and upper bounds: 0, 100). * Missing data codes: blank cell ## Details for: Schutz\_Little\_Beetle\_abundance.csv * Description: a comma-delimited file containing the abundance of different taxa of Coleoptera collected in pitfall traps at different study sites in the research project. * Format(s): .csv * Size(s): 2 KB * Dimensions: 26 rows x 18 columns * Variables: * Family: Denotes the family of a taxa (see next column description) of beetle collected in the pitfall traps. More than one taxa were collected from some families, so there are repeat values of some family names in this column. * Taxa: Denotes the taxa of beetle collected in the pitfall traps. Taxa were identified to the lowest possible taxonomic unit. For some, these are families or orders. For others, this is genus, which is denoted by genus_sp (where genus is replaced with the name of the genus). For some, this was species, for which the format is genus_species. * Columns 3 through 18: The variable names for these columns are coded to each refer to one pooled pitfall trap sample, using variables 1-4 in the environmental dataset. The first part of the sample code refers to study area: MKRF = Malcolm Knapp Research Forest, BNK = B&K Trail System. The second part of the code refers to stream type: P = perennial, I = intermittent. The third part of the code refers to habitat type: R = riparian, S = streambed or shoreline. The last part of the code refers to flow period: F = early summer, N = late summer. Therefore, the first row contains these codes, and rows 2-26 contain the number of individual beetles of that taxa collected in that sample, with a lower bound of zero representing the taxa being absent from the sample. * Missing data codes: blank cell --- END OF README