Vehicles kill birds on sandy beaches: The global evidence

Thomas A Schlacher; Michael A Weston; Brooke Maslo; Jenifer E Dugan; Kyle A Emery; David M Hubbard; Brendan P Kelaher; Mariano Lastra; Stuart E Parsons

doi:10.1016/j.scitotenv.2025.179258

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Vehicles kill birds on sandy beaches: The global evidence

Journal article

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Vehicles kill birds on sandy beaches: The global evidence

Thomas A Schlacher, Michael A Weston, Brooke Maslo, Jenifer E Dugan, Kyle A Emery, David M Hubbard, Brendan P Kelaher, Mariano Lastra and Stuart E Parsons

Science of the Total Environment, Vol.975, pp.1-11

2025

DOI: https://doi.org/10.1016/j.scitotenv.2025.179258

PMID: 40157036

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Abstract

Ocean beaches

Recreation

Conservation

Human-wildlife conflict

Management

Sandy shores

Road ecology

1. Ocean beaches provide essential habitats for a diversity of birds to forage, breed, and roost. Beaches can also be prime sites for motorized recreation where off-road vehicles (ORVs) interact with avifauna - this creates a complex threat landscape in the human-wildlife domain, translating into a wicked conservation challenge. 2. Because effective vehicle management aimed at mitigating the adverse impacts of ORVs on animals is, ideally, evidence-based, here we synthesize the global data on vehicle-bird conflicts on sandy beaches. 3. Our meta-analysis demonstrates that deleterious impacts of ORVs on beach birds are geographically widespread, impacting a diversity of species in multiple ways, representing serious harm to individuals, populations, and assemblages. 4. Significant declines in the abundance and diversity of birds stressed by ORVs are common. Fitness is compromised at all stages of the breeding cycle: a) there are fewer breeding pairs, nests and successful breeding attempts on shores open to ORVs; b) compromised incubating behaviour exposes eggs and chicks to heat, cold and predators; c) nests and eggs are directly crushed by vehicles; d) fewer chicks hatch, and e) the number of young fledged diminishes. ORVs also flush birds (‘escape on the wing’), curtail critical foraging time, cause physiological stress, and displace individuals to less favourable habitats. 5. The strength of the evidence for serious ecological harm unambiguously attributed to off-road vehicles emphasizes the need to permanently reduce the spatial reach of ORVs, creating adequately-sized ‘safe zones’ for coastal avifauna in a variety of seascape and human use settings.

Details

Title: Vehicles kill birds on sandy beaches: The global evidence
Authors: Thomas A Schlacher (Corresponding Author) - University of the Sunshine Coast, Queensland, School of Science, Technology and Engineering
Michael A Weston - Deakin University
Brooke Maslo - Rutgers, The State University of New Jersey
Jenifer E Dugan - University of California, Santa Barbara
Kyle A Emery - University of California, Santa Barbara
David M Hubbard - University of California, Santa Barbara
Brendan P Kelaher - Southern Cross University
Mariano Lastra - Universidade de Vigo
Stuart E Parsons - University of the Sunshine Coast, Queensland, School of Science, Technology and Engineering
Publication details: Science of the Total Environment, Vol.975, pp.1-11
Publisher: Elsevier BV
Date published: 2025
DOI: 10.1016/j.scitotenv.2025.179258
ISSN: 1879-1026; 0048-9697
PMID: 40157036
Data Availability: Data will be made available on request.
Grant note: We warmly thank the Moreton Bay Foundation for financially supporting this project.
Organisation Unit: School of Science, Technology and Engineering
Language: English
Record Identifier: 991114191402621
Output Type: Journal article

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