Essential oil diversity was studied in wild Achillea millefolium from two different high altitude Himalayan habitats (1600 m, 2850 m) and their cultivated populations under uniform environmental conditions at lower altitudes of Jammu (300 m). The populations proved to represent two different ecotypes: the 1,8-cineole type and the borneol type with appreciable differences in the contents of oils and mono- and sesquiterpenes. Populations from all these habitats showed considerable overlap in various constituents and the major components were characterized as beta-pinene (10.6 % - 17.7 %), 1,8-cineole (3.0 % - 15.1 %), borneol (0.2 % - 12.1 %), and beta-caryophyllene (8.5 % - 16.2 %). No variation in morphology and chromosome number was observed under comparable environmental conditions from different habitats. Preliminary investigation indicates the existence of different ecotypes from the Himalayan habitats.
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http://dx.doi.org/10.1055/s-2005-837828 | DOI Listing |
J Environ Manage
December 2024
Department of Geology, Delhi University(DU), New Delhi, 110007, India.
The study explores the structural and functional dynamics of rhizospheric bacterial diversity in the Pranmati basin, focusing on their ecological significance, diversity, and functional roles across dominant vegetation types; Rhododendron arboreum, Myrica esculenta, and Quercus leucotrichophora. The research provides critical insights into soil health and ecosystem functioning by analysing rhizospheric soil properties among the selected vegetations. The research findings reveal that Myrica esculenta exhibits the highest root colonization (95.
View Article and Find Full Text PDFEnviron Monit Assess
December 2024
Department of Botany, University of Jammu, Baba Saheb Ambedkar Road, Jammu Tawi, J&K, 180006, India.
The broad-scale inventories of alien species reveal macroecological patterns, but these often fall short in guiding local-level management strategies. Local authorities, tasked with on-the-ground management, require precise knowledge of the occurrence of invasive species tailored to their jurisdictional boundaries. What proves critical at the local scale may not hold the same significance at national or regional levels.
View Article and Find Full Text PDFJ Environ Manage
December 2024
School of Environmental Sciences, Jawaharlal Nehru University, New Delhi, 110067, India. Electronic address:
Understanding and regulating global carbon relies crucially on comprehending the components and services of forest ecosystems. In particular, interactions that govern carbon storage in trees, soil, and microbes, driven by factors like vegetation structure, function, and soil characteristics, remain poorly understood, especially in the central Himalayas. To address this gap, we investigated carbon storage in tree aboveground biomass, root biomass, and soil across different vegetation types.
View Article and Find Full Text PDFAnimals (Basel)
December 2024
Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China.
The red panda (Ailurus), a rare and endangered mammal native to the Himalayan-Hengduan Mountains, has a specialized bamboo diet. Combining morphological and genomic evidence, red pandas have been classified as and . However, previous studies focused on ecological aspects such as foraging behaviors, habitat use and threats within specific distributions; hence, there is still a gap in quantitative comparative studies on the trophic niches of these two species.
View Article and Find Full Text PDFFront Plant Sci
November 2024
Department of Biology, College of Science, King Khalid University, Abha, Saudi Arabia.
In India, the Trans-Himalayan zone lies in the rain shadow of the main Himalayan region and is usually described as a "high-altitude cold desert". These regions are represented by sparse but unique vegetation composition. The present study is an attempt to investigate the vegetation composition in the alpine ecosystem of the cold desert landscape of the Nelang Valley in Western Himalayas (Uttarakhand), India.
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