Plant species diversity and density patterns along altitude gradient covering high-altitude alpine regions of west Himalaya, India

Sekar, K. Chandra; Thapliyal, Neha; Pandey, Aseesh; Joshi, Bhaskar; Mukherjee, Sandipan; Bhojak, Puja; Bisht, M. S.; Bhatt, Deepika; Singh, Sourab; Bahukhandi, Amit

doi:10.1080/24749508.2022.2163606

Cited by 19 publications

(12 citation statements)

References 44 publications

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“…The study by Watanabe and Suzuki (2008) showed that rattan inhabits any altitude of the forested habitat, from the lowland to the mountainous region. Thus, to obtain a better picture of the numbers of Korthalsia throughout Peninsular Malaysia plus Sabah and Sarawak (Borneo), gathering more information on clustering climbing palms (rattans) is only possible when sampling across altitudinal (Stiegel et al 2011;Rozali et al 2014;Rawal et al 2018;Sekar et al 2023) and latitudinal (Shi et al 2014;Cuesta et al 2017) were conducted. In this case, the discovery of K. scortechinii was reported from Peninsular Thailand in this study collected from Narathiwat, Thailand, and it was deposited to Kew herbarium (Accession No.…”

Section: Discussionmentioning

confidence: 99%

Species richness and phytogeographic affinities of rattan genus Korthalsia in Malaysia

SHAHIMI,

JAMALUDIN,

AHMAD

2023

Biodiversitas

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Abstract. Shahimi S, Jamaludin AA, Ahmad A. 2023. Species richness and phytogeographic affinities of rattan genus Korthalsia in Malaysia. Biodiversitas 24: 5764-5778. The clustering climbing palm genus Korthalsia Blume (Arecaceae: Calamoideae: Calameae) is widespread in the Malesian region with 28 documented species. However, as many as 18 species are available in Malaysian rainforests. An inquiry was carried out in 2019 throughout Malaysia that included species richness and phytogeographic affinities for Korthalsia. Currently, Korthalsia is highly diverse in Sabah and Sarawak, with 15 species documented in this region, whereas 9 species are present in the Malay Peninsula. Species of Korthalsia were dominated by Korthalsia echinometra Becc., Korthalsia flagellaris Miq., Korthalsia hispida Becc., Korthalsia rigida Blume, and Korthalsia rostrata Blume, which suggests their prevalence in richness compared to being diverse; only 5 species found in all regions. The species accumulation curve indicates that this region's rattan community is moderately rich. There is an east-west separation for the distribution of rattan species in Peninsular Malaysia. This work's novelty reflects a new record for the distribution of K. hispida in Penang that indicates reductions in occurrence for known distributions. Perhaps underscores on significance and inadequacies related to continuous monitoring were responsible for efforts to develop a comprehensive understanding of the diversity, distribution, and potential discoveries for Korthalsia. This indicates risks from development because accessibility is improved and allows researchers to reach further terrain that previously could not be explored. However, despite this weakness, a correct checklist should be constructed for existing rainforests so Korthalsia dispersal, diversity, and richness can be correctly archived.

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Section: Discussionmentioning

confidence: 99%

Species richness and phytogeographic affinities of rattan genus Korthalsia in Malaysia

SHAHIMI,

JAMALUDIN,

AHMAD

2023

Biodiversitas

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“…Due to its wide altitudinal range and diverse climatic and soil types, the region supports a variety of habitats and vegetation [ 41 ]. As per the India State of Forest Report (ISFR), the recorded forest area in the state is 68.6% of the total geographical area ( ; accessed on 5 December 2023).…”

Section: Methodsmentioning

confidence: 99%

“…In 2022, the state witnessed variability in rainfall ranging from 5.7 mm (in March) to 263.4 mm (in July) with a total annual rainfall of 1086.4 mm (https://mausam.imd/gov.in.shimla/mcdata/cli_hp.pdf; accessed on 5 December 2023) and an annual snowfall varying from 25 to 204 cm (https://imdpune.gov.in/library/public/Cli-mate%20of%20Himachal%20Pradesh.pdf; accessed on 5 December 2023). Due to its wide altitudinal range and diverse climatic and soil types, the region supports a variety of habitats and vegetation [41]. As per the India State of Forest Report Due to its wide altitudinal range and diverse climatic and soil types, the region supports a variety of habitats and vegetation [41].…”

Section: Study Areamentioning

confidence: 99%

“…Due to its wide altitudinal range and diverse climatic and soil types, the region supports a variety of habitats and vegetation [41]. As per the India State of Forest Report Due to its wide altitudinal range and diverse climatic and soil types, the region supports a variety of habitats and vegetation [41]. As per the India State of Forest Report (ISFR), the recorded forest area in the state is 68.6% of the total geographical area (https://fsi.…”

Section: Study Areamentioning

confidence: 99%

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Projected Impacts of Climate Change on the Range Expansion of the Invasive Straggler Daisy (Calyptocarpus vialis) in the Northwestern Indian Himalayan Region

Lal,

Chauhan,

Kaur

et al. 2023

Plants

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Human-induced climate change modifies plant species distribution, reorganizing ecologically suitable habitats for invasive species. In this study, we identified the environmental factors that are important for the spread of Calyptocarpus vialis, an emerging invasive weed in the northwestern Indian Himalayan Region (IHR), along with possible habitats of the weed under current climatic scenarios and potential range expansion under several representative concentration pathways (RCPs) using MaxEnt niche modeling. The prediction had a high AUC (area under the curve) value of 0.894 ± 0.010 and a remarkable correlation between the test and expected omission rates. BIO15 (precipitation seasonality; 38.8%) and BIO1 (annual mean temperature; 35.7%) had the greatest impact on the probable distribution of C. vialis, followed by elevation (11.7%) and landcover (6.3%). The findings show that, unlike the current situation, “high” and “very high” suitability areas would rise while less-suited habitats would disappear. All RCPs (2.6, 4.5, 6.0, and 8.5) indicate the expansion of C. vialis in “high” suitability areas, but RCP 4.5 predicts contraction, and RCPs 2.6, 6.0, and 8.5 predict expansion in “very high” probability areas. The current distribution of C. vialis is 21.59% of the total area of the state, with “medium” to “high” invasion suitability, but under the RCP 8.5 scenario, it might grow by 10% by 2070. The study also reveals that C. vialis may expand its niche at both lower and higher elevations. This study clarifies how bioclimatic and topographic factors affect the dispersion of invasive species in the biodiverse IHR. Policymakers and land-use managers can utilize the data to monitor C. vialis hotspots and develop scientifically sound management methods.

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“…In accordance with the assumption that many species may shift in search of suitable habitat (without considering adaptability criteria) and R. arboreum has some invasive properties, it may shift its location in the future. Since the study area comprises of Himalayas, at very high elevation locations (>4000m), climatic conditions may be very harsh for tree species to survive (Sekar et al 2023), and also a species may not be able to shift for thousands of meters in rapid elevation gradients. So, the inclusion of spatial metrics is important in the analysis to make it more realistic.…”

Section: Incorporation Of Spatial Measure Into Analysismentioning

confidence: 99%

R. arboreum’s altitudinal and latitudinal shift in future climate pivots on emission scenarios

Veera,

Behera,

Goel

et al. 2023

Preprint

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Global warming leads to changes in distribution of species across the globe. Himalayan altitudinal gradients are one of the most susceptible ecosystems to varying climatic drivers and predicting distribution of species on this rugged topography in future climate seeks attention in terms of both ecological and economic importance. Western Himalayan states of Himachal Pradesh and Uttarakhand shelter one-tenth of world’s known higher-altitude plant species. Rhododendron arboreum, the most widely distributed tree in Himalayas, was studied for its distribution in future climate. Ensemble models were employed to predict distribution by 2070 in Representative Concentration Pathways (RCP) 4.5 and RCP 6.0 scenarios. Altitudinal shift was studied by incorporating spatial measures, considering minimum horizontal distance the species can move. Centroidal shift was estimated in terms of both direction and magnitude, and altitudinal analysis was performed at centroidal shift. Results showed that, Himalayan locations in RCP 4.5 scenario would get warmer than RCP 6.0 scenario, and species is just as likely to shift upwards (higher elevations in RCP 4.5 scenario) as downward (lower elevations in RCP 6.0 scenario) despite consistent warming across the study area. Highest suitable elevation range for the species presence is likely to be ~ 2100m in current scenario, 2200m – 2400m in RCP 4.5 scenario, and 1800m – 2100m in RCP 6.0 scenario. Temperate zone of Himalayas may turn out as the most suitable zone for R. arboreum and species is likely to move in Northwest direction with a horizontal distance of 60km and 25km in RCP 4.5 and RCP 6.0 scenarios, respectively.

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Plant species diversity and density patterns along altitude gradient covering high-altitude alpine regions of west Himalaya, India

Cited by 19 publications

References 44 publications

Species richness and phytogeographic affinities of rattan genus Korthalsia in Malaysia

Species richness and phytogeographic affinities of rattan genus Korthalsia in Malaysia

Projected Impacts of Climate Change on the Range Expansion of the Invasive Straggler Daisy (Calyptocarpus vialis) in the Northwestern Indian Himalayan Region

R. arboreum’s altitudinal and latitudinal shift in future climate pivots on emission scenarios

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