Leveraging Digital Mobility Data to Estimate Visitation in National Wildlife Refuges

Samantha G. Winder, Spencer A Wood, Matthew T.J. Brownlee and Emilia H. Lia
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Samantha G. Winder: University of Washington
Spencer A Wood: University of Washington

No 7crka, SocArXiv from Center for Open Science

Abstract: The US Fish and Wildlife Service (USFWS) manages over 560 National Wildlife Refuges and dozens of National Fish Hatcheries across the United States. Accurately estimating visitor numbers to these areas is essential for understanding current recreation demand, planning for future use, and ensuring the ongoing protection of the habitats, fish, and wildlife that refuges safeguard. However, accurately estimating visitation across the entire refuge system presents significant challenges. Building on previous research conducted on other federal lands, this study evaluates methods to overcome constraints in estimating visitation levels using statistical models and digital mobility data. We develop and test a visitation modeling approach using multiple linear regression, incorporating predictors from eight mobility data sources, including four social media platforms, one community science platform, and three mobile phone location datasets from two commercial vendors. We find that the number of observed visitors to refuges correlates with the volume of data from each mobility source. However, neither social media nor commercial mobile phone location data alone provide reliable proxies for visitation due to inconsistent relationships with observed visitation; these relationships vary by data source, refuge, and time. Our results demonstrate that a visitation model integrating multiple mobility datasets accounts for this variability and outperforms models based on individual mobility datasets. We find that a refuge-level effect is the single most important predictor, suggesting that including site characteristics in future models will make them more generalizable. We conclude that statistical models which incorporate digital mobility data have the potential to improve the accuracy of visitor estimates, standardize data collection methods, and simplify the estimation process for agency staff.

Date: 2024-09-26
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Persistent link: https://EconPapers.repec.org/RePEc:osf:socarx:7crka

DOI: 10.31219/osf.io/7crka

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