Ryan Perroy

Associate Professor

University of Hawaii

United States

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Dr. Ryan Perroy is an Associate Professor at the University of Hawaii at Hilo, United States. His research focuses on the deployment of biocontrol methods, remote sensing for environmental monitoring, and the impacts of invasive species in Hawaiian ecosystems. Recent publications highlight his work on seedling regeneration, mapping biological soil crusts, and the geolocation of aerial imaging for invasive plant surveys.

Articles (11)

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2025

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2024

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2024

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2024

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2024

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2023

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2022

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2022

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2021

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2021

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2020

Collaborators (6)

Roberto Rodriguez III

University of Hawaii

UNITED STATES

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Rebecca Ostertag

Professor

University of Hawaii

UNITED STATES

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Nicolas Oestreicher

WSL-Institut für Schnee- und Lawinenforschung SLF

SWITZERLAND

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Nina Buchmann

Professor at ETH Zürich

ETH Zürich

SWITZERLAND

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Daniel Jenkins

Professor

University of Hawaii at Manoa

UNITED STATES

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Joël Ruch

Associate Professor

University of Geneva

SWITZERLAND

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Ryan Perroy

Research Interests

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About

Articles (11)

Scaling up the deployment of Psidium cattleyanum biocontrol in a Tropical Forest

A direct geolocation method for aerial imaging surveys of invasive plants

Light quality and spatial variability influences on seedling regeneration in Hawaiian lowland wet forests

Tracking magma pathways and surface faulting in the Southwest Rift Zone and the Koaʻe fault system (Kīlauea volcano, Hawai ‘i) using photogrammetry and structural observations

Five-Year Evaluation of Sentinel-2 Cloud-Free Mosaic Generation Under Varied Cloud Cover Conditions in Hawai’i

A framework for establishing a rapid ‘Ōhi‘a death resistance program

Aerial Branch Sampling to Detect Forest Pathogens

Mapping biological soil crusts in a Hawaiian dryland

Comparing Interpretation of High-Resolution Aerial Imagery by Humans and Artificial Intelligence to Detect an Invasive Tree Species

Spatial Patterns of ‘Ōhi‘a Mortality Associated with Rapid ‘Ōhi‘a Death and Ungulate Presence

Examining the Utility of Visible Near-Infrared and Optical Remote Sensing for the Early Detection of Rapid ‘Ōhi‘a Death

Collaborators (6)

Roberto Rodriguez III

Rebecca Ostertag

Nicolas Oestreicher

Nina Buchmann

Daniel Jenkins

Joël Ruch

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