Dynamics of top-down factors with relation to ecological attributes of an endangered species Commiphora wightii

Kulloli, R. N.; Mathur, Manish; Kumar, Suresh

doi:10.31018/jans.v8i3.1000

Cited by 3 publications

(1 citation statement)

References 19 publications

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“…1 Details of height, canopy and RIV (Table 1) revealed that it is a sub-dominant species (RIV=8.71 to 49.0). Similar dominance analysis in respect of another endangered species of Indian desert, Commiphora wightii, also revealed its sub-dominant status and this sub-dominant status was also related to soil potassium (Kulloli et al, 2016). It was recommended that for conservation of C. wightii, a mixed plantation with associated species would be more successful.…”

Section: Ecological Distributionmentioning

confidence: 71%

Traditional In-situ Rainwater Conservation Method for Sustaining Threatened Plant Species: A Case Study from the Indian Thar Desert

Kumar

Singh

Machiwal

et al. 2023

Preprint

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This study assessed natural diversity of rare, endemic and threatened arid plant, i.e., Glossonema varians, in the Indian Thar desert and that needs in-situ conservation. Furthermore, efficacy of a traditional method of rainwater conservation is investigated in sustaining its regeneration and conservation. Two biotypes of G. variancs on rocky crevices having crisped margin leaves with light yellow flowers and sand deposition having leaf margin entire and dark yellow flowers are found. Ecologically, it is a sub-dominant species with relative importance value raging from 8.71 to 49. Box-whisker plots revealed that rainwater conservation improved plant growth and population of G. varians. Results of t-test further evidenced the influence of rainwater conservation in regenerating and flourishing plants of G. varians. Rainfall and plant population showed a moderately positive linear relationship (R2 = 0.30, p<0.10) and 27-mm threshold rainfall over 6 days is essential for conserving G. varians.

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Section: Ecological Distributionmentioning

confidence: 71%

Traditional In-situ Rainwater Conservation Method for Sustaining Threatened Plant Species: A Case Study from the Indian Thar Desert

Kumar

Singh

Machiwal

et al. 2023

Preprint

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Evaluation of Soil Physical, Chemical Parameter and Enzyme Activities as Indicator of Soil Fertility with SFM Model in IA–AW Zone of Rajasthan

Sihag

Prakash

Yadav

2020

Advances in Intelligent Systems and Computing

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Ecological niche modelling of a critically endangered species Commiphora wightii (Arn.) Bhandari using bioclimatic and non-bioclimatic variables

Mathur

Purohit³

2023

Ecol Process

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Background The aim of this study is to examine the effects of four different bioclimatic predictors (current, 2050, 2070, and 2090 under Shared Socioeconomic Pathways SSP2-4.5) and non-bioclimatic variables (soil, habitat heterogeneity index, land use, slope, and aspect) on the habitat suitability and niche dimensions of the critically endangered plant species Commiphora wightii in India. We also evaluate how niche modelling affects its extent of occurrence (EOO) and area of occupancy (AOO). Results The area under the receiver operating curve (AUC) values produced by the maximum entropy (Maxent) under various bioclimatic time frames were more than 0.94, indicating excellent model accuracy. Non-bioclimatic characteristics, with the exception of terrain slope and aspect, decreased the accuracy of our model. Additionally, Maxent accuracy was the lowest across all combinations of bioclimatic and non-bioclimatic variables (AUC = 0.75 to 0.78). With current, 2050, and 2070 bioclimatic projections, our modelling revealed the significance of water availability parameters (BC-12 to BC-19, i.e. annual and seasonal precipitation as well as precipitation of wettest, driest, and coldest months and quarters) on habitat suitability for this species. However, with 2090 projection, energy variables such as mean temperature of wettest quarter (BC-8) and isothermality (BC-3) were identified as governing factors. Excessive salt, rooting conditions, land use type (grassland), characteristics of the plant community, and slope were also noticed to have an impact on this species. Through distribution modelling of this species in both its native (western India) and exotic (North-east, Central Part of India, as well as northern and eastern Ghat) habitats, we were also able to simulate both its fundamental niche and its realized niche. Our EOO and AOO analysis reflects the possibility of many new areas in India where this species can be planted and grown. Conclusion According to the calculated area under the various suitability classes, we can conclude that C. wightii's potentially suitable bioclimatic distribution under the optimum and moderate classes would increase under all future bioclimatic scenarios (2090 > 2050 ≈ current), with the exception of 2070, demonstrating that there are more suitable habitats available for C. wightii artificial cultivation and will be available for future bioclimatic projections of 2050 and 2090. Predictive sites indicated that this species also favours various types of landforms outside rocky environments, such as sand dunes, sandy plains, young alluvial plains, saline areas, and so on. Our research also revealed crucial information regarding the community dispersion variable, notably the coefficient of variation that, when bioclimatic + non-bioclimatic variables were coupled, disguised the effects of bioclimatic factors across all time frames.

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Dynamics of top-down factors with relation to ecological attributes of an endangered species Commiphora wightii

Cited by 3 publications

References 19 publications

Traditional In-situ Rainwater Conservation Method for Sustaining Threatened Plant Species: A Case Study from the Indian Thar Desert

Traditional In-situ Rainwater Conservation Method for Sustaining Threatened Plant Species: A Case Study from the Indian Thar Desert

Evaluation of Soil Physical, Chemical Parameter and Enzyme Activities as Indicator of Soil Fertility with SFM Model in IA–AW Zone of Rajasthan

Ecological niche modelling of a critically endangered species Commiphora wightii (Arn.) Bhandari using bioclimatic and non-bioclimatic variables

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