| Abstrakt: |
Biological invasion is the second most important threat to biodiversity and consequently is a cause of great concern for the ecology and economy of the invaded community. Documentation of invasive plants in a region is crucial as it provides the baseline information for future research and management activities. In this study, we have produced an annotated checklist of the invasive alien plants of Gorakhpur district in the Terai region of Eastern Uttar Pradesh based on field observation, existing literature, and herbarium consultation. A total 58 alien plants species are listed, belonging to 25 angiosperm families of which 15 alien species are invasive having high impact, 37 alien species are naturalized having moderate impact and 6 alien species are casual having low impact over ecological communities. All the invasive plants are not equally problematic and spread across the district while some of them viz. Ageratum houstonianum Mill., Alternanthera philoxeroides (Mart.) Abh., Chromolaena odorata (L.) R.M. King & H. Rob., Mesosphaerum suaveolens (L.) Kuntze., Mikania micrantha Kunth Nov., Parthenium hysterophorus L., Pontederia crassipes Mart., Antigonon leptopus Hook. & Arn., Lantana camara L., are spread in most parts of the district and they are capable of spreading into the protected areas of this region. The present study is based on firsthand field observations, and provides a detailed and recent checklist of invasive species of Gorakhpur district. Therefore, this information can help researchers and policymakers to develop effective management strategies. [ABSTRACT FROM AUTHOR] |
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