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May 22, 2026Japanese Journal of Ornithology

The habitat characteristics and breeding status of Leach’s Storm-Petrel on Daikoku Island, Hokkaido

Futoshi Ujiie Jumpei Okado Yasuaki Niizuma Bungo Nishizawa Ryusei SUZUKI Yumi Kobayashi Akiko SHOJI

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Key Points

This research aims to analyze the nesting environment and breeding status of Leach’s Storm-Petrel on Daikoku Island.
Conducted surveys across Daikoku Island in 2021 and 2022 to map vegetation.
Set up multiple survey plots to record nest hole density, soil hardness, soil properties, and slope.
Analyzed nest hole utilization rates over five arbitrary years from a 15-year dataset (2009–2024).
Nest hole density showed a negative relationship with soil hardness and a positive relationship with slope.
Variability in nest hole density was observed due to different vegetation types, aligning with prior research trends.
Nest utilization rates fluctuated significantly by year, indicating potential for skipped breeding and variability in breeding success.

Implication

Examines nesting conditions affecting breeding status in Leach's Storm-Petrel, suggesting critical conservation insights.

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Cite This Study

Ujiie et al. (2026) studied this question.

synapsesocial.com/papers/6a34dc0f65a5b0777af2c827 https://doi.org/10.3838/jjo.75.65

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