Article (Scientific journals)
Disturbance frequency, intensity and forest structure modulate cyclone-induced changes in mangrove forest canopy cover
Peereman, Jonathan; Hogan, J. Aaron; Lin, Teng-Chiu
2022In Global Ecology and Biogeography, 31 (1), p. 37 - 50
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Keywords :
canopy cover; disturbance; enhanced vegetation index; forest structure; mangroves; normalized difference infrared index; remote sensing; resilience; tropical cyclones; Global and Planetary Change; Ecology, Evolution, Behavior and Systematics; Ecology
Abstract :
[en] Aim: Tropical cyclones are large-scale disturbances that can shape the structure and dynamics of mangrove forests. Although tropical cyclone activity overlaps extensively with the latitudinal distribution of mangrove forests, the relationships between cyclone intensity and frequency and mangrove forest canopy damage and recovery are not understood at the global scale. Using remote sensing data, we examined how mangrove forest structure, climate and cyclone characteristics influence canopy cover loss and recovery dynamics. Location: Global tropics. Time period: 2000–2020. Major taxa studied: Mangrove trees. Methods: Using two satellite-derived vegetation indices (the enhanced vegetation index and the normalized difference infrared index) from 86 cyclones affecting 56 mangrove sites across the globe, we quantified mangrove canopy loss in relationship to cyclones. Using linear regression and variance decomposition, we identified and ranked significant predictors of cyclone-induced canopy loss and recovery. Results: Three-quarters of the studied cyclone disturbances resulted in canopy damage. Stands exposed to high wind speeds and those close to the cyclone paths were more severely damaged, whereas lower damage magnitudes were found in sites with greater past cyclone frequency. Canopy damage was greater in tall mangrove stands but decreased with higher aboveground biomass. The distance from the cyclone path and maximum wind speed were the most important factors, representing > 50% of the explained variation in cyclone damage. There was considerable variation in canopy damage among cyclones, but rates of recovery were similar across all mangrove sites, with the main predictor of recovery time being the degree of canopy loss. Main conclusions: Our results suggest that the resistance of mangrove canopy cover to cyclone disturbance is variably tuned to the cyclone regime and vegetation characteristics, but resilience is inherent to the magnitude of canopy damage because the rate of forest canopy recovery appears to be consistent globally.
Disciplines :
Environmental sciences & ecology
Author, co-author :
Peereman, Jonathan  ;  Université de Liège - ULiège > Sphères ; Department of Life Science, National Taiwan Normal University, Taipei, Taiwan
Hogan, J. Aaron ;  Department of Biological Sciences, Florida International University, Miami, United States
Lin, Teng-Chiu ;  Department of Life Science, National Taiwan Normal University, Taipei, Taiwan
Language :
English
Title :
Disturbance frequency, intensity and forest structure modulate cyclone-induced changes in mangrove forest canopy cover
Publication date :
2022
Journal title :
Global Ecology and Biogeography
ISSN :
1466-822X
eISSN :
1466-8238
Publisher :
John Wiley and Sons Inc
Volume :
31
Issue :
1
Pages :
37 - 50
Peer reviewed :
Peer Reviewed verified by ORBi
Funding text :
Ministry of Science and Technology grant number: MOST 107‐2313‐B‐003‐001‐MY3Ministry of Science and Technology grant number: MOST 107-2313-B-003-001-MY3 We thank Pei-Jen Lee Shaner for assistance with statistical analysis. We acknowledge the use of Landsat data, which are a NASA product. This research is supported by grants from the Ministry of Science and Technology (MOST 107-2313-B-003-001-MY3).
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