Change in structural and compositional diversity with altitude: a study from Nanda Devi Biosphere Reserve (NDBR), West Himalaya, India

Hema, Joshi; Samant, S. S.

doi:10.54207/bsmps1000-2014-km91x3

Cited by 7 publications

(4 citation statements)

References 47 publications

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“…High endemism within a region indicates the presence of significant eco-regions and ecosystems that require protection [3]. The topography, climate, and altitude of mountainous areas act as barriers that promote speciation and make them potential hotspots for endemic elements [4,5]. Endemic plant species face greater susceptibility to human-induced threats and natural fluctuations, making them more prone to extinction.…”

Section: Conservation and Management Implications Of Endemic Speciesmentioning

confidence: 99%

“…A species is endemic if it is confined to a particular area through historical, ecological, or physiological reasons. Topography, climate, and altitude are the major barriers which restrict species' gene flow and thus allow speciation to occur [4]. Increased isolation at higher elevations promotes speciation and, if the mountain areas are large enough to allow for population persistence and divergence, they may be rich in endemic elements [5].…”

Section: Introductionmentioning

confidence: 99%

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A Bibliometric Analysis of Studies on Plant Endemism during the Period of 1991–2022

Wani,

Akhter,

Ridwan

et al. 2023

JZBG

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A bibliometric analysis of 349 scholarly documents published on the topic plant nativity and endemism from 1991–2022 was carried out using the ‘bibliometrix’ tool, developed through the R programming language. The results revealed a significant increase in the number of publications on plant nativity and endemism research since 1991. Of the total of 349 documents that were analyzed, 38 are single authored documents, and the average number of documents per author is 0.278. Each document has received an average of 33.67 citations, with 3.18 citations per year per document. The relationship between the number of authors and the number of articles that they have published follows a power-law distribution. Based on Bradford’s law, only eight were found to be the core sources. Mexico, followed by the USA, has produced the highest number of documents on plant nativity and endemism. The present study suggests that it is necessary to categorize data on endemism by floristic provinces, not by political subdivisions. Synecological studies are also needed, since endemic plants exist within communities. Models that accurately predict levels of endemism on the basis of easily measurable environmental variables should be useful for the rapid identification of endemic-rich areas. Recognition of the importance of plant endemism and the implementation of conservation measures is crucial for preserving biodiversity hotspots. Both in situ and ex situ conservation efforts are essential for protecting endemic species and preventing their extinction. By integrating these approaches, we can contribute to the long-term conservation and management of endemic plant species.

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Section: Conservation and Management Implications Of Endemic Speciesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A Bibliometric Analysis of Studies on Plant Endemism during the Period of 1991–2022

Wani,

Akhter,

Ridwan

et al. 2023

JZBG

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“…The status of their population in the wild was studied with the quantitative analysis of floristic diversity. The causes of depletion, habitat management, conservation strategies, and cultivation suggestions were studied [32,18].…”

Section: ➢ Simpson's Indexmentioning

confidence: 99%

Study on Arboreal Floristic Diversity, Phytosociology and Conservation Strategy of Endangered Species in Chandi Beat of Majathal Wildlife Sanctuary, Himachal Pradesh, Western Himalaya

Kumari,

Verma,

Kumar

et al. 2023

IJECC

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Himachal Pradesh, a land of snow-abode mountains is significant for its natural wealth and unique habitat, flora, and fauna. Majathal Wildlife Sanctuary, the site of the present study was located in Solan and Shimla districts (Wildlife Division, Shimla) of Himachal Pradesh spread over an area of 37.71 sq km. Phytosociological studies for arboreal flora were conducted in the Chandi beat, of the sanctuary by using the quadrate method and quantitative analysis. The altitude of this beat varied from 625m to 1960m amsl. Total number of plant species recorded in the study area was 155, belonging to 46 families and 97 genera. The dominant families included Fabaceae, Moraceae, Asteraceae, Malvaceae, Lamiaceae, and Rosaceae. Pinus roxburghii recorded the highest value of IVI and is the most dominant tree species in the forest followed by Quercus leucotrichophora. Results revealed that the range of Concentration of dominance (C) 0.04-0.06, Index of Diversity (H) 2.55-3.58, Richness index (R) 3.47-7.78 and Evenness Index (E) 0.84-0.93 was for trees and range of Concentration of dominance (C) 0.03-0.04, Index of Diversity (H) 3.37-3.86, Richness index (R) 6.22-6.12 and Evenness Index (E) 0.91-0.93 for shrubs at different elevation in Chandi beat. There were three woody plant species found as threatened category plant according to CAMP, 2013 i.e., Pleurolobus gangeticus, Oroxylum indicum and Zanthoxylum armatum which require conservation efforts suggested except Zanthoxylum armatum which has shown a good population in nature. Phytosocial and floristic diversity study on woody plants was not done before in this sanctuary so it will provide baseline information on the biodiversity status of the woody vegetation of the sanctuary and encourage conservation efforts, sustainable utilization of resources, and bio-perspective.

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“…To achieve this, a detailed study of 10.3389/fevo.2022.961345 species distribution, composition, species biology, disturbance level, and various scientific interventions in Q. semecarpifolia is urgently required. Several studies have been conducted covering various aspects of the Q. semecarpifolia such as taxonomy and distribution (Naithani, 1984;Singh and Rawat, 2000), composition, structure, and function (Singh et al, 1997;Joshi and Samant, 2014;Rawat and Negi, 2021;Rawat et al, 2021a;Singh et al, 2021), failure of regeneration (Negi and Naithani, 1995;Singh et al, 1997), and spatiotemporal changes (Rawat et al, 2021b;Shekhar et al, 2022); however, a detailed review is lacking, which is imperative for preparing long-term monitoring and management strategies of the species. In this article, the authors have tried to provide a comprehensive account of species distribution, plant biology, abundance, and present status with a special focus on regeneration patterns, human threat, and management interventions.…”

Section: Introductionmentioning

confidence: 99%

A comprehensive review of Quercus semecarpifolia Sm.: An ecologically and commercially important Himalayan tree

Rawat

Purohit

et al. 2022

Front. Ecol. Evol.

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Himalayan mountain forests have been a potential candidate for the investigation of perturbations due to the complex geography in which they sustain and the sensitivity of the species toward human disturbance and climate change. Among various tree species, brown oak (Quercus semecarpifolia), a very important component of the Himalayan mountains, has been identified as a keystone species due to its substantial economic and ecological benefits. Maintenance of microclimate and suitable habitats with a rich source of natural resources makes Q. semecarpifolia the most preferred forest for luxuriant growth of ground flora, shelter for fauna, and multipurpose uses by the local people. In a climax community, it plays a critical role in environmental balance both at the local and regional levels. Unfortunately, it has become one of the most overexploited tree species of the Himalayan region over the last few decades due to its high demand for dry season fodder and firewood. The wide range of seedling distribution 348–4,663 individuals ha–1 is evidence of the disturbance accompanied by poor regeneration in Q. semecarpifolia forests. Moreover, litter accumulation and grass cover adversely affect seed germination. The ecological cost of oak forest degradation is perhaps more important and damage is irreversible. Thus, continuous demand and extensive threats accompanied by poor regeneration have drawn the attention of stakeholders to conserve this species. However, propagation protocol, especially the pre-sowing treatment of the species, has not been impressive for large-scale multiplication. This review is comprehensive information on distribution, phenology, regeneration pattern, human threat, conservation approaches, and management of Q. semecarpifolia in the Himalayan region.

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Change in structural and compositional diversity with altitude: a study from Nanda Devi Biosphere Reserve (NDBR), West Himalaya, India

Cited by 7 publications

References 47 publications

A Bibliometric Analysis of Studies on Plant Endemism during the Period of 1991–2022

A Bibliometric Analysis of Studies on Plant Endemism during the Period of 1991–2022

Study on Arboreal Floristic Diversity, Phytosociology and Conservation Strategy of Endangered Species in Chandi Beat of Majathal Wildlife Sanctuary, Himachal Pradesh, Western Himalaya

A comprehensive review of Quercus semecarpifolia Sm.: An ecologically and commercially important Himalayan tree

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