Bark beetle pre-emergence detection using multi-temporal hyperspectral drone images: Green shoulder indices can indicate subtle tree vitality decline

Topics

bark beetle pre-emergence detection · Ips typographus · UAV imagery · green shoulder region · first derivative reflectance · second derivative reflectance · green shoulder region · multi-temporal monitoring · tree vitality decline · brood emergence timing · filial generation (F1 and F2) · spectral separability · Photochemical Reflectance Index · Red Edge Inflection Position · Picea abies · forest health monitoring · photochemical functioning · bi-weekly image acquisition · detection rate quantification · simplified multispectral indices

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Pepkio Research Index (PRI). Topics and Trends in Most Cited Forest Insect Ecology and Management Papers, Class of 2026. https://pri.pepkio.com/top-papers/forest-insect-ecology-and-management/2026. Accessed 2026-07-31.

Methodology
Zheng Su, Tinsley Li, Thematic Shifts in Early-High-Impact Cancer Genomics and Diagnostics Research: A Bibliometric and Semantic Analysis. bioRxiv 2026.07.04.736459; doi: https://doi.org/10.64898/2026.07.04.736459