Publication details

Spectral characteristics of bryophyte carpet and mat subformation showing a vitality-dependent color pattern: Comparison for two distant regions of maritime Antarctica

Authors

PUHOVKIN Anton SMYKLA Jerzy VÁCZI Peter PARNIKOZA Ivan

Year of publication 2023
Type Article in Periodical
Magazine / Source Czech Polar Reports
MU Faculty or unit

Faculty of Science

Citation
Web https://doi.org/10.5817/CPR2023-1-9
Doi http://dx.doi.org/10.5817/CPR2023-1-9
Keywords spectral reflectance; maritime Antarctica; moss communities; ecological; monitoring; NDVI; PRI; moss species resistance; Galindez Island; Nelson Island
Description Spectral characteristics of the bryophyte carpet and mat subformation on Nelson Island (South Shetlands Islands) and Galindez Island (Argentine Islands, Graham Coast) were analyzed using spectral reflectance characteristics. A set of 9 specific reflectance indices were calculated and compared between two locations for the same type of moss vegetation formed by Sanionia georgicouncinata and Warnstorfia spp. The Normalized Difference Vegetation Index (NDVI) is efficient in discriminating between the two contrasting color/ecological moss community classes, i.e. such as less vigorous or dead and vigorous. However, NDVI is not sufficiently sensitive to discriminate intermediate vitality states. Presented data also demonstrates that complementary application of two indices, NDVI and Photochemical Reflectance Index (PRI), can be promising for follow-up studies focused on the determination of the color differences attributed to ecolophysiological state of a moss community. With the same values of NDVI, bryophyte carpet and mat subformation on Galindez Island are characterized by higher values of the OSAVI, which can be used as an indicator for further monitoring.

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