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Amphibian assemblages and diversity patterns in two forest ecosystems of South‐Eastern Nigeria
African Journal of Ecology ( IF 1.1 ) Pub Date : 2020-08-13 , DOI: 10.1111/aje.12776
Md Mizanur Rahman 1, 2 , Lotanna M. Nneji 1, 3 , Adeola C. Adeniyi 1, 3 , Jinmin Chen 1 , Edem A. Eniang 4 , Segun O. Oladipo 5 , Omotoso Olatunde 6 , Abiodun B. Onadeko 7 , Felista Kasyoka Kilunda 1, 2 , Adeola O Ayoola 1 , Babatunde E. Adedeji 6 , Ifeanyi C. Nneji 8 , Nelson U. Akwaowo 6 , Adiaha A. A. Ugwumba 6 , Jie‐Qiong Jin 1 , Tingting Yin 1 , Min‐Sheng Peng 1, 3 , Caroline Olory 9 , Nsikan Eninekit 10 , Jing Che 1
Affiliation  

Despite recent anthropogenic interference, south‐eastern (SE) Nigeria historically hosts a myriad of pristine forest habitats that could sustain diverse amphibian assemblages. Currently, land conversion of primary forests through human activities has led to modified habitats, such as agricultural fields and secondary forest. This calls for biodiversity documentation and initiation of conservation plans. However, the dearth of herpetological studies has limited knowledge of the amphibian species richness and distribution patterns in some forest ecosystems of SE Nigeria. Thus, we surveyed two less‐explored intact forests in SE Nigeria—Afi Forest Reserve (AFR) and Ikpan forest ecosystem (IFE)—to document the patterns of amphibian diversity and distribution. Specimens were searched for opportunistically using visual and acoustic survey methods. Literature searches were conducted to document additional species that were not encountered. Using the observational records and arrays of diversity indices, the patterns of species richness and abundance across habitat types were evaluated. The result of our study revealed the presence of 30 and 31 amphibian species from AFR and IFE, respectively. Our field collections included two unidentified species (Sclerophrys sp. and Hyperolius sp.) from AFR and one (Phrynobatrachus sp.) from IFE. Analyses revealed high species diversity and richness in forest and swamps compared with the agricultural field and savannah. Given the increased human activities and the antecedent threats to forest ecosystems of SE Nigeria, we offer recommendations for the initiation of conservation plans for these two surveyed localities.

中文翻译:

尼日利亚东南部两个森​​林生态系统中的两栖动物组合和多样性模式

尽管最近有人为干扰,但尼日利亚东南(SE)历来仍拥有无数原始森林生境,这些生境可维持各种两栖动物组合。当前,通过人类活动对原始森林进行土地转化导致了诸如农田和次生林等栖息地的改变。这就需要生物多样性文件和保护计划的启动。但是,由于缺乏爬行动物学研究,因此对东南尼日利亚一些森林生态系统中两栖动物物种丰富度和分布模式的了解有限。因此,我们调查了尼日利亚东南部两个未开发的完整森林-Afi森林保护区(AFR)和Ikpan森林生态系统(IFE)-以记录两栖动物多样性和分布模式。使用视觉和声学调查方法对标本进行了机会性搜索。进行文献检索以记录未遇到的其他物种。使用观测记录和多样性指数阵列,评估了不同生境类型的物种丰富度和丰度模式。我们的研究结果表明,分别存在来自AFR和IFE的30种和31种两栖动物。我们的野外采集包括两个未识别物种(巩膜藻 和AFR中的Hyperolius sp。)和IFE中的Phrynobatrachus sp。)。分析表明,与农田和热带稀树草原相比,森林和沼泽地区的物种多样性和丰富度很高。考虑到人类活动的增加以及对尼日利亚东南部森林生态系统的前期威胁,我们为在这两个被调查地区启动保护计划提供了建议。
更新日期:2020-08-13
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