Nitrogen and Metal Ions Accumulation in Two Sensitive Himalayan Lichens From Western Nepal: A Reference for Ecosystem Health Monitoring

In this study, thalli nitrogen (N) and metal ions contents in the two fruticose lichens (Ramalina intermedia and Usnea cornuta) were quantified, which were collected from a pristine Himalayan forest of Shey Phoksundo National Park of western Nepal. Besides, the probable impacts of N and metal ions i...

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Main Authors: Suman Prakash Pradhan, Hirendra Bista, Bishal Lamsal, Nirvik Dotel, Bishnu Prasad Pandey, Subodh Sharma
Format: Article
Language:English
Published: Wiley 2025-01-01
Series:Journal of Chemistry
Online Access:http://dx.doi.org/10.1155/joch/6482278
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author Suman Prakash Pradhan
Hirendra Bista
Bishal Lamsal
Nirvik Dotel
Bishnu Prasad Pandey
Subodh Sharma
author_facet Suman Prakash Pradhan
Hirendra Bista
Bishal Lamsal
Nirvik Dotel
Bishnu Prasad Pandey
Subodh Sharma
author_sort Suman Prakash Pradhan
collection DOAJ
description In this study, thalli nitrogen (N) and metal ions contents in the two fruticose lichens (Ramalina intermedia and Usnea cornuta) were quantified, which were collected from a pristine Himalayan forest of Shey Phoksundo National Park of western Nepal. Besides, the probable impacts of N and metal ions in physicochemical responses such as electrical conductivity, chlorophyll contents, and chlorophyll degradation were studied. Our initial hypothesis was there are considerable amounts of thallus N and metal ions in lichens from the study area, and it has substantial impacts on physicochemical responses. In comparison, the thalli N concentration was observed to be the greatest in R. intermedia thalli (0.24%–1.15%). However, comparable amounts of metal ions in both lichen species were observed. Regression analysis revealed the least or no impacts of N and metal ions in physicochemical responses. The principal component analysis suggests the contribution of different environmental variable and their correlation with lichen’s variables. This study provides evidence of the least concentration of N and metal ions and only minor impacts on the physicochemical integrity of the two sensitive lichens in our study area. This study is likely to contribute as field-based reference information for further studies on the species-specific N and metal ions accumulation in lichens from different Himalayan forest systems to monitor ecosystem health.
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institution Kabale University
issn 2090-9071
language English
publishDate 2025-01-01
publisher Wiley
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series Journal of Chemistry
spelling doaj-art-d72356e08a26403c935dc7f337075f922025-01-14T00:00:02ZengWileyJournal of Chemistry2090-90712025-01-01202510.1155/joch/6482278Nitrogen and Metal Ions Accumulation in Two Sensitive Himalayan Lichens From Western Nepal: A Reference for Ecosystem Health MonitoringSuman Prakash Pradhan0Hirendra Bista1Bishal Lamsal2Nirvik Dotel3Bishnu Prasad Pandey4Subodh Sharma5Aquatic Ecology CentreAquatic Ecology CentreAquatic Ecology CentreDepartment of Environmental Science and EngineeringDepartment of Chemical Science and EngineeringAquatic Ecology CentreIn this study, thalli nitrogen (N) and metal ions contents in the two fruticose lichens (Ramalina intermedia and Usnea cornuta) were quantified, which were collected from a pristine Himalayan forest of Shey Phoksundo National Park of western Nepal. Besides, the probable impacts of N and metal ions in physicochemical responses such as electrical conductivity, chlorophyll contents, and chlorophyll degradation were studied. Our initial hypothesis was there are considerable amounts of thallus N and metal ions in lichens from the study area, and it has substantial impacts on physicochemical responses. In comparison, the thalli N concentration was observed to be the greatest in R. intermedia thalli (0.24%–1.15%). However, comparable amounts of metal ions in both lichen species were observed. Regression analysis revealed the least or no impacts of N and metal ions in physicochemical responses. The principal component analysis suggests the contribution of different environmental variable and their correlation with lichen’s variables. This study provides evidence of the least concentration of N and metal ions and only minor impacts on the physicochemical integrity of the two sensitive lichens in our study area. This study is likely to contribute as field-based reference information for further studies on the species-specific N and metal ions accumulation in lichens from different Himalayan forest systems to monitor ecosystem health.http://dx.doi.org/10.1155/joch/6482278
spellingShingle Suman Prakash Pradhan
Hirendra Bista
Bishal Lamsal
Nirvik Dotel
Bishnu Prasad Pandey
Subodh Sharma
Nitrogen and Metal Ions Accumulation in Two Sensitive Himalayan Lichens From Western Nepal: A Reference for Ecosystem Health Monitoring
Journal of Chemistry
title Nitrogen and Metal Ions Accumulation in Two Sensitive Himalayan Lichens From Western Nepal: A Reference for Ecosystem Health Monitoring
title_full Nitrogen and Metal Ions Accumulation in Two Sensitive Himalayan Lichens From Western Nepal: A Reference for Ecosystem Health Monitoring
title_fullStr Nitrogen and Metal Ions Accumulation in Two Sensitive Himalayan Lichens From Western Nepal: A Reference for Ecosystem Health Monitoring
title_full_unstemmed Nitrogen and Metal Ions Accumulation in Two Sensitive Himalayan Lichens From Western Nepal: A Reference for Ecosystem Health Monitoring
title_short Nitrogen and Metal Ions Accumulation in Two Sensitive Himalayan Lichens From Western Nepal: A Reference for Ecosystem Health Monitoring
title_sort nitrogen and metal ions accumulation in two sensitive himalayan lichens from western nepal a reference for ecosystem health monitoring
url http://dx.doi.org/10.1155/joch/6482278
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