Wake Atoll: Evaluation of plant biosecurity

Date

2025-06-08

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University of Hawai'i at Hilo

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Number/Issue

112

Starting Page

i

Ending Page

14

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Abstract

Introduced organisms can cause substantial effects across most landscapes. Island ecosystems, especially tropical islands, are at elevated risk from introduced organisms. The risks are even higher for tropical islands with moderate or high levels of transit, yet this can be minimized by application of appropriate biosecurity requirements. In this study, we examined the potential for non-native plant species introductions, especially invasive plants, via shipping containers to be transported to Wake Atoll, one of the most remote terrestrial land masses in the Pacific Ocean. We sowed debris collected from 30 shipping containers in a greenhouse experiment to determine if any live plants could be germinated, identify any species that germinated, and ascertain if they posed a threat if they were to be transported to Wake Atoll and became established there. During this study 23 plant species were identified, including ferns, monocots, and dicots. Fifteen of these species reached reproductive maturity over the course of seven months. From previous plant surveys on the atoll, we know that 13 of the 23 identified species were not previously recorded, and four species are already known to be invasive on Wake Atoll. This study provides insight into the potential for debris found in shipping containers to contribute to the spread of non-native, possibly invasive species. This information may help with the refinement of biosecurity strategies to prevent the accidental introduction of invasive species into sensitive natural areas such as Wake Atoll.

Description

Keywords

biosecurity, Hawaiian Islands, invasive species management, plants, shipping containers, Wake Atoll

Citation

Yanger, C. M., J. D. Jacobi, S. G. Yelenik, and S. A. Hathaway. 2025. Wake Atoll: Evaluation of plant biosecurity. Hawai‘i Cooperative Studies Unit Technical Report HCSU-112. University of Hawai‘i at Hilo. 17 pages. http://hdl.handle.net/10790/5395

Extent

17 pages

Format

Technical Report

Geographic Location

Wake Atoll
Hawaiian Islands

Time Period

2018–2021

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Table of Contents

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http://rightsstatements.org/vocab/NoC-NC/1.0/
Work cannot be altered. Creative commons.

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