Modeling the impact of climate change on wild Piper nigrum (Black Pepper) in Western Ghats, India using ecological niche models

Sen, Sandeep and Gode, Ameya and Ramanujam, Srirama and Ravikanth, G and Aravind, NA (2016) Modeling the impact of climate change on wild Piper nigrum (Black Pepper) in Western Ghats, India using ecological niche models. Journal of Plant Research, 129 (6). pp. 1033-1040. ISSN 0918-9440

[img] PDF
Sen2016_Article_ModelingTheImpactOfClimateChan.pdf - Published Version
Restricted to Registered users only

Download (1MB) | Request a copy

Abstract

The center of diversity of Piper nigrum L. (Black Pepper), one of the highly valued spice crops is reported to be from India. Black pepper is naturally distributed in India in the Western Ghats biodiversity hotspot and is the only known existing source of its wild germplasm in the world. We used ecological niche models to predict the potential distribution of wild P. nigrum in the present and two future climate change scenarios viz (A1B) and (A2A) for the year 2080. Three topographic and nine uncorrelated bioclim variables were used to develop the niche models. The environmental variables influencing the distribution of wild P. nigrum across different climate change scenarios were identified. We also assessed the direction and magnitude of the niche centroid shift and the change in niche breadth to estimate the impact of projected climate change on the distribution of P. nigrum. The study shows a niche centroid shift in the future climate scenarios. Both the projected future climate scenarios predicted a reduction in the habitat of P. nigrum in Southern Western Ghats, which harbors many wild accessions of P. nigrum. Our results highlight the impact of future climate change on P. nigrum and provide useful information for designing sound germplasm conservation strategies for P. nigrum.

Item Type: Article
Uncontrolled Keywords: Piper nigrum; MaxEnt; niche centroid; future climate; centres of diversity.
Subjects: Research > Research Center - Health Sciences
Depositing User: KMC Library
Date Deposited: 01 Jul 2020 06:41
Last Modified: 01 Jul 2020 06:41
URI: http://eprints.manipal.edu/id/eprint/154971

Actions (login required)

View Item View Item