Predicting invasion potential and niche dynamics of Parthenium hysterophorus (Congress grass) in India under projected climate change.

摘要: In an era of climate change, predictive distribution modelling and niche dynamics invasive species can help in understanding current future invasion potential. Parthenium hysterophorus (Congress grass), native to tropical America, is one the world’s worst weeds with huge ecological economic impacts, including India. Here we report potential P. India under change scenarios describe its dynamics. The results revealed that climate, 65% total area suitable for three hotspots identified: Western Himalaya, North-East parts Peninsular study predicts overall decrease habitat suitability this about half reduced RCP 8.5-2070; but some currently invaded regions will remain equally (North-East) or become highly vulnerable (Western Himalaya) climate. Interestingly, has shifted climatic range India, more due unfilling. Based on univariate analysis, dynamic processes analogous (expansion) non-analogous (abandonment pioneering) environments were also evident. from present developing change-integrated region-specific management strategies More importantly, between ranges offer novel insights understand nature shifts predict change.