Comparative analysis of floristic richness and diversity in six central forest reserves of north eastern Uganda.

IF 2.3 Q2 ECOLOGY
Samuel Ojelel, Esther Katuura, Patrick Mucunguzi, James Kalema
{"title":"Comparative analysis of floristic richness and diversity in six central forest reserves of north eastern Uganda.","authors":"Samuel Ojelel, Esther Katuura, Patrick Mucunguzi, James Kalema","doi":"10.1186/s12862-024-02323-1","DOIUrl":null,"url":null,"abstract":"<p><p>As the extinction risk of plants increases globally, there is need to prioritize areas with high floristic richness and diversity to inform the design of evidence-based conservation interventions. As such, this study aimed to comparatively analyse floristic diversity in six central forest reserves (CFR) of north eastern Uganda. This was guided by two objectives namely; (i) to determine the floristic richness and diversity in the CFRs and (ii) to evaluate the similarity and complementarity of floristic composition. Data was collected from nested quadrats (20 × 20 m for trees, 10 × 10 m for shrubs and 5 × 5 m for herbaceous climbers, forbs and grasses) placed at intervals of 100 m along a transect of 1000 - 1500 m. Species richness, diversity and evenness were determined for each CFR. Binary similarity coefficients were computed because only presence/absence data of plant species was recorded. A sum of 417 plant species in 76 families were recorded representing 8.7% of known vascular plants reported in Uganda. The CFRs have significantly variable Shannon-Wiener diversity indices ranging from 4.2 in Kano CFR to 4.47 in Bululu hill CFR (t = 85.291, df = 4, p = 0.00). The CFRs cluster into two groups namely Onyurut and Ogera hills and Akur, Kano, Bululu hills and Mount Moroto. The lowest similarity index was between Ogera hills and Moumt Moroto CFRs (0.37 or 37%) while the highest was between Akur and Kano CFRs (0.63 or 63%). The CFRs complement one another by supporting plant species not recorded elsewhere with three CFRs (Bululu hills, Mount Moroto and Onyurut) accounting for 81.53% of the plant taxa. The CFRs in NE Uganda have richness and floristic diversity with up to 8.7% of the known plants in Uganda present. The conservation status of these species is Vulnerable (4), Near Threatened (4), Least Concern (137), Data Deficient (1) and Not Evaluated (271). The two similarity clusters depict variation in altitudinal, proximity and climatic conditions. Five CFRs are required to conserve 95% of the species recorded. Therefore, the CFRs investigated play a complementary role in conserving the floristic diversity in north eastern Uganda.</p>","PeriodicalId":93910,"journal":{"name":"BMC ecology and evolution","volume":"25 1","pages":"12"},"PeriodicalIF":2.3000,"publicationDate":"2025-01-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11743001/pdf/","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"BMC ecology and evolution","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1186/s12862-024-02323-1","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ECOLOGY","Score":null,"Total":0}
引用次数: 0

Abstract

As the extinction risk of plants increases globally, there is need to prioritize areas with high floristic richness and diversity to inform the design of evidence-based conservation interventions. As such, this study aimed to comparatively analyse floristic diversity in six central forest reserves (CFR) of north eastern Uganda. This was guided by two objectives namely; (i) to determine the floristic richness and diversity in the CFRs and (ii) to evaluate the similarity and complementarity of floristic composition. Data was collected from nested quadrats (20 × 20 m for trees, 10 × 10 m for shrubs and 5 × 5 m for herbaceous climbers, forbs and grasses) placed at intervals of 100 m along a transect of 1000 - 1500 m. Species richness, diversity and evenness were determined for each CFR. Binary similarity coefficients were computed because only presence/absence data of plant species was recorded. A sum of 417 plant species in 76 families were recorded representing 8.7% of known vascular plants reported in Uganda. The CFRs have significantly variable Shannon-Wiener diversity indices ranging from 4.2 in Kano CFR to 4.47 in Bululu hill CFR (t = 85.291, df = 4, p = 0.00). The CFRs cluster into two groups namely Onyurut and Ogera hills and Akur, Kano, Bululu hills and Mount Moroto. The lowest similarity index was between Ogera hills and Moumt Moroto CFRs (0.37 or 37%) while the highest was between Akur and Kano CFRs (0.63 or 63%). The CFRs complement one another by supporting plant species not recorded elsewhere with three CFRs (Bululu hills, Mount Moroto and Onyurut) accounting for 81.53% of the plant taxa. The CFRs in NE Uganda have richness and floristic diversity with up to 8.7% of the known plants in Uganda present. The conservation status of these species is Vulnerable (4), Near Threatened (4), Least Concern (137), Data Deficient (1) and Not Evaluated (271). The two similarity clusters depict variation in altitudinal, proximity and climatic conditions. Five CFRs are required to conserve 95% of the species recorded. Therefore, the CFRs investigated play a complementary role in conserving the floristic diversity in north eastern Uganda.

乌干达东北部6个中央森林保护区区系丰富度和多样性的比较分析。
随着全球植物灭绝风险的增加,有必要优先考虑植物区系丰富度和多样性高的地区,为基于证据的保护干预措施的设计提供信息。因此,本研究旨在比较分析乌干达东北部6个中央森林保护区(CFR)的植物区系多样性。这是由两个目标指导的,即;(1)确定植物区系的丰富度和多样性;(2)评价植物区系组成的相似性和互补性。数据收集自沿1000 - 1500 m样带每隔100 m放置的巢状样方(树木20 × 20 m,灌木10 × 10 m,草本攀援植物、草本和禾草5 × 5 m)。物种丰富度、多样性和均匀度分别测定。由于只记录了植物物种的存在/缺失数据,因此计算了二元相似系数。共记录到76科417种植物,占乌干达已知维管植物的8.7%。群落的Shannon-Wiener多样性指数变化显著,从卡诺群落的4.2到布鲁鲁山群落的4.47 (t = 85.291, df = 4, p = 0.00)。病区分为两组,即奥尼鲁特山和奥格拉山以及阿库尔山、卡诺山、布鲁卢山和莫罗托山。Ogera山与Moroto山的相似度指数最低(0.37,37%),Akur山与Kano山的相似度指数最高(0.63,63%)。其中Bululu hills、Mount Moroto和Onyurut 3个CFRs占植物类群的81.53%。乌干达东北部的cfr具有丰富的植物种类和多样性,乌干达已知植物的8.7%存在于cfr中。这些物种的保护状况为脆弱(4),近危(4),最不关注(137),数据不足(1)和未评估(271)。这两个相似簇描述了海拔、邻近和气候条件的变化。要保护95%的已记录物种,需要五个生态保护区。因此,所调查的cfr在保护乌干达东北部植物区系多样性方面发挥了补充作用。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 求助全文
来源期刊
自引率
0.00%
发文量
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信