Journal
BIOTROPICA
Volume 54, Issue 6, Pages 1412-1427Publisher
WILEY
DOI: 10.1111/btp.13112
Keywords
Central India; composition; diversity; Lantana camara; soils; stand structure; tropical forests
Categories
Funding
- Science and Engineering Research Board (SERB), Department of Science and Technology, New Delhi [PDF/2015/000447]
- Department of Biotechnology, Government of India [BT/PR12899/NDB/39/506/2015]
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This study assessed the impact of Lantana camara invasion on plant communities and soil properties in Central Indian forest ecosystems. The results showed that Lantana invasion significantly reduced the number of saplings and juveniles, and increased soil organic carbon, soil total nitrogen, and soil moisture content, while decreasing soil pH. Lantana invasion can greatly impact vegetation and soil, potentially increasing its invasive potential and threatening native species.
Lantana camara (hereafter Lantana) is a highly noxious invasive weed species of global concern. However, its impacts on floristic and soil properties in tropical dry deciduous forests are elusive and fragmented. We aimed to assess the changes in the flora and soil properties following the invasion by Lantana in Central Indian forest ecosystems. Three study sites were selected, and each site was further divided into two subsites: Lantana-invaded (LI) and uninvaded (UI). In total, 60 plots of 0.25 ha each (10 plots in each subsite) were laid randomly. Within each plot, floristic structure, composition, diversity, soil organic carbon (SOC), soil total nitrogen (STN), moisture (M%), pH, and bulk density (BD) were assessed. Lantana-invaded sites showed a significant decrease in density (D), basal area (BA), species richness (SR), and evenness (E) of saplings (<3 cm diameter at breast height [DBH]), juveniles (between 3 and 9.9 cm DBH), and herbs. In LI sites, a reduction of 57% and 25% was observed in lower DBH class of trees (saplings and juveniles). In all the LI sites, significant increase in SOC, STN, and M%, and a significant decrease in pH were recorded. Lantana may greatly impact the vegetation and soil properties, and successively, these strong changes may increase its invasive potential and ability to replace native species by averting their natural regeneration potential. Therefore, a proper management strategy of this noxious weed is imperative to prevent its further expansion and future problems.
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