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April 23, 2026Remote SensingOpen Access

Identifying the Impact of Leaf-Miner Complex Insects on Nothofagus obliqua Forests by Assessing Changes in Land Surface Phenology

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Authors

BVBenjamin VergaraRLRegis Le-FeuvrePTPaula Tiara Torres

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Overview

Study identifies changes in land surface phenology in Nothofagus obliqua forests due to insect outbreaks, suggesting improved monitoring strategies.

Key Points

  • The study aims to evaluate the impact of a leaf-miner complex on land surface phenology in Nothofagus obliqua forests.
  • Analyzed MODIS Enhanced Vegetation Index time series data from 2003 to 2024.
  • Applied Seasonal-Trend decomposition (STL) to isolate long-term EVI anomalies.
  • Developed an EVI condition index to assess 2022–2023 observations against historical data.
  • Sharp decline in EVI trend during late 2022 was recorded, reaching the lowest value in 20 years.
  • Phenological decoupling began in November 2022, correlating with larval development and peak defoliation.
  • Ecosystem condition fell to a minimum of 42%, significantly below the historical probability region.

Cite This Study

Vergara et al. (2026) studied this question.

synapsesocial.com/papers/69e9b85585696592c86eb923https://doi.org/10.3390/rs18081260
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