Table of Contents

• Coverage
• Dataset Description
  • Methods & Sampling
  • Data Processing Description
  • BCO-DMO Processing Description
  • Problem Description
• Data Files
• Parameters
• Instruments
• Project Information
• Funding

Temperature loggers were attached to the inside of a white PVC cap with cable ties, and the cap was bolted flush with the rock in the intertidal zone. Loggers were deployed at 1.0 meter (m) elevation (and, at some sites, 0.5 and 1.5 m) above MLLW (mean lower-low water) as determined using a laser level and tide predictions (https://tide.arthroinfo.org/). The loggers recorded temperatures continuously at 30-minute intervals.

Temperature data were cleaned "by hand" at the start and end of deployments to ensure that all records are from the time that the loggers were deployed in the intertidal zone.

- Imported original file "Logger Data (Range Shift NSF) - FINAL.xlsx" into the BCO-DMO system.
- Replaced years of "0202" with "2022".
- Renamed fields to comply with BCO-DMO naming conventions.
- Converted date and time columns to ISO 8601 format in PDT (UTC-7:00); removed the original, separate Date and Time columns.
- Created an ISO 8601 date-time column in UTC.
- Removed duplicate rows as discussed with PI.
- Removed original rows numbered 7761 and 7762 as discussed with PI due to missing temperature values.
- Removed original rows numbered 182217 and 160838 as requested by PI because the logger had not equilibrated to field temperature.
- Saved the final file as "926813_v1_coastal_intertidal_temperatures.csv"

NSF Award Abstract:
This project will improve our ability to anticipate the impacts of shifts in the geographic range of coastal species in a changing climate. Although range shifts may be necessary for some species to avoid extinction as the climate warms, the arrival of new ones to an ecosystem can also lead to population declines and loss of biodiversity. The investigator is developing approaches to predict the impacts of range shifts along Pacific shorelines using techniques that have been previously validated for risk assessments for invasive species. The research objectives of this study are integrated with educational activities: engagement of undergraduate and graduate students in data collection and analysis and implementation of a hierarchical mentoring program to serve English Language Learners within the investigator’s Minority Serving Institution. The investigator is also partnering with outreach organizations in the U.S. and Mexico to educate K-12 students and multiple stakeholder groups about climate-driven range shifts and tools for predicting outcomes of redistribution, which can assist practitioners in creating management plans and policies.

This study is developing a framework for understanding the impacts of marine species redistribution with a focus on poleward-moving carnivorous whelk species in rocky shorelines from Northern California to Baja, Mexico. Project goals are to 1) quantify the impacts of shifting species on populations and communities in the expanded range; 2) assess whether impacts of shifting species differ between their native and expanded ranges; and 3) predict future impacts under climate warming. The investigator is addressing fundamental questions in community ecology about the degree to which species interactions are density- and context-dependent. She is combining observational and experimental approaches with a broader data synthesis effort to test whether the impacts of species redistribution can be predicted by key indicators of invasion impacts: abundance, trophic level, and impacts in the native range. Empirical data combined with paired demographic and distribution modeling will be used to project future impacts across the expanded ranges of these coastal marine species.