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<p>Efforts to conserve biodiversity in the context of climate change require a better understanding of how agroforestry systems can effectively contribute to these conservation initiatives. This study was conducted in the Sudanian and Sahelo-Sudanian zones of the Senegalese Groundnut basin. It aimed to assess the difference in species richness, diversity and composition within agroforestry systems and climatic zones. The research focused on three main agroforestry systems: silvopastoral, agrisilvicultural, and agrosilvopastoral. Twenty-three (23) plots of 100 × 100&#xa0;m were inventoried in each climatic zone using stratified sampling. Species diversity and composition were determined using various metrics, including Shannon–Wiener, Pielou’s equitability index and Bray–Curtis dissimilarity, all performed with the BiodiversityR package. The study recorded a total of 43 species across 36 genera and 19 families. In the Sahelo-Sudanian zone, the agrisilvicultural and agrosilvopastoral systems exhibited a significantly higher (<i>p</i> ≤ 0.05) species richness and diversity than the silvopastoral system. A different pattern was observed in the Sudanian zone, showing no significant variation (<i>p</i> &gt; 0.05) in species richness and diversity within agroforestry systems. Furthermore, the results revealed a significant difference in species richness and composition between climatic zones, indicating that they host different ecological communities. The agroforestry systems also displayed a notable dissimilarity in species composition, ranging from moderate to high in both climatic zones. This suggests that each system serves as a habitat for specific woody species. Hence, they are all crucial for effective biodiversity conservation and should be given equal priority in conservation efforts.</p>

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Agroforestry systems and climatic conditions influence woody species composition in the Senegalese Groundnut Basin

  • 期刊论文

  • 发表日期：

    2025年8月12日

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  • Mariama Sambou,
  • Fatimata Niang,
  • Antoine Sambou,
  • Séyni Sané,
  • André A. Diatta,
  • Simon Sambou,
  • Hyacinthe Sambou,
  • Moctar Badji,
  • Ansoumana P. Sané,
  • Malainy Diatta,
  • Assane Goudiaby,
  • Bienvenu Sambou

摘要

Efforts to conserve biodiversity in the context of climate change require a better understanding of how agroforestry systems can effectively contribute to these conservation initiatives. This study was conducted in the Sudanian and Sahelo-Sudanian zones of the Senegalese Groundnut basin. It aimed to assess the difference in species richness, diversity and composition within agroforestry systems and climatic zones. The research focused on three main agroforestry systems: silvopastoral, agrisilvicultural, and agrosilvopastoral. Twenty-three (23) plots of 100 × 100 m were inventoried in each climatic zone using stratified sampling. Species diversity and composition were determined using various metrics, including Shannon–Wiener, Pielou’s equitability index and Bray–Curtis dissimilarity, all performed with the BiodiversityR package. The study recorded a total of 43 species across 36 genera and 19 families. In the Sahelo-Sudanian zone, the agrisilvicultural and agrosilvopastoral systems exhibited a significantly higher (p ≤ 0.05) species richness and diversity than the silvopastoral system. A different pattern was observed in the Sudanian zone, showing no significant variation (p > 0.05) in species richness and diversity within agroforestry systems. Furthermore, the results revealed a significant difference in species richness and composition between climatic zones, indicating that they host different ecological communities. The agroforestry systems also displayed a notable dissimilarity in species composition, ranging from moderate to high in both climatic zones. This suggests that each system serves as a habitat for specific woody species. Hence, they are all crucial for effective biodiversity conservation and should be given equal priority in conservation efforts.