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159 results on '"Ahmad, Rameez"'

2. Fine-scale classification and mapping of subalpine-alpine vegetation and their environmental correlates in the Himalayan global biodiversity hotspot

Author

Padalia, Hitendra, Rai, Ishwari Datt, Pangtey, Divesh, Rana, Kuldeep, Khuroo, Anzar Ahmad, Nandy, Subrata, Singh, Gajendra, Sekar, K. Chandra, Sharma, Neeraj, Uniyal, Sanjay K., Talukdar, Gautam, Saran, Sameer, Chandra, Naveen, Bushra, Aimon, Ahmad, Rameez, Thakar, Anil, Deepak, Stanzin, Jikmat, and Rawat, Gopal Singh

Published
2023
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17. Ecological impacts of a global plant invader: synthesizing mean and variance effects using meta‐analysis.

Author

Ahmad, Rameez, Lone, Showkeen Ahmad, Rashid, Irfan, and Khuroo, Anzar Ahmad

Subjects
*ECOLOGICAL impact, *GLOBAL environmental change, *INVASIVE plants, *INTRODUCED species, *LANTANA camara
Abstract

Invasive alien species (IAS) are one amongst the dominant drivers of global environmental change. The reported effects of IAS on biodiversity and ecosystems are often highly variable across species, habitats, and environmental settings, which constrains our capacity to empirically generalise their overall impact. To date, meta‐analyses have investigated the ecological impacts of IAS using only mean effects, while variance effects – an equally important measure in quantifying the efficacy or generalizability of a treatment – has largely remained ignored. Using a global meta‐analysis of 586 and 522 effect sizes related to mean and variance measures respectively from 30 studies, here we provide the first quantitative synthesis of the extent to which a global plant invader Lantana camara affects the mean and variance of ecological variables relevant at species, community and ecosystem levels. Our results suggest that for individual response classes, both the mean and variance effects from the species invasion differed considerably in their magnitude and direction, with the effect on most response classes being highly heterogeneous and non‐significant. The study design had a significant effect on both the mean and variance effects from the species invasion, but the ecosystem type, continent, and latitude act as weak predictors of both mean and variance effects. By investigating both mean and variance effects, our study provides first quantitative synthesis on ecological impacts of a globally problematic invasive plant. Based on our findings, we highlight the current knowledge gaps and suggest future research directions, particularly the need to focus on causes of variance in invasion impact studies for effective management and restoration of invaded landscapes. [ABSTRACT FROM AUTHOR]

Published
2024
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20. Forest Ecosystems of Jammu and Kashmir State

Author

Haq, Shiekh Marifatul, Khuroo, Anzar A., Malik, Akhtar H., Rashid, Irfan, Ahmad, Rameez, Hamid, Maroof, Dar, Ghulam Hassan, Hawksworth, David L., Series Editor, Dar, Ghulam Hassan, editor, and Khuroo, Anzar A., editor

Published
2020
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31. Altitudinal gradient drives significant changes in soil physico-chemical and eco-physiological properties of Rhododendron anthopogon: a case study from Himalaya

Author

Mangral, Zahid Ahmed, primary, Islam, Shahid Ul, additional, Tariq, Lubna, additional, Kaur, Sharanjeet, additional, Ahmad, Rameez, additional, Malik, Akhtar H., additional, Goel, Shailendra, additional, Baishya, Ratul, additional, Barik, Saroj Kanta, additional, and Dar, Tanvir Ul Hassan, additional

Published
2023
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43. Taxonomy and threat assessment of Lagotis Kunawurensis Rupr. (Plantaginaceae), an endemic medicinal plant species of the Himalaya, India.

Author

Ganie, Aiũanj Hassan, Butt, Tariq Ahmad, Khuroo, Annjar Ahmad, Rasool, Nanjima, Ahmad, Rameez, Basharat, Syed, and Reshi, Zafar A.

Subjects
PLANT species, ENDEMIC plants, ENDANGERED species, TAXONOMY, PLANTAGINACEAE
Abstract

Lagotis Kunawurensis Rupr. (Plantaginaceae), a rare plant species endemic to the Himalaya, is reported here after a gap of 50 years from Ladakh. This species has often been taxonomically misidentified and confused with Wicrorhinja Kurroa, an important medicinal plant of the Himalaya. The present study clarifies the taxonomy of L. Kunawurensis by providing description and photo illustrations of diagnostic characters which will aid its proper field identification. Furthermore, the threat assessment of L. Kunawurensis using the IUCN Red List of Threatened Species has been conducted based on the available occurrence records, and the species currently falls under the ‘Near Threatened’ category. This species is used for medicinal purposes by locals in the study area. As the species is simultaneously experiencing various kinds of threats and the known distribution range is relatively smaller, it is right time to develop conservation strategies for the sustainable utilization of this endemic medicinal plant species of the Himalaya. [ABSTRACT FROM AUTHOR]

Published
2022
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