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首页> 外文期刊>Scientia Africana: An International Journal of Pure & Applied Sciences >TERRESTRIAL MOLLUSCS SPECIES RICHNESS AND DIVERSITY IN GASHAKA - GUMTI NATIONAL PARK, TARABA STATE , NIGERIA.
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TERRESTRIAL MOLLUSCS SPECIES RICHNESS AND DIVERSITY IN GASHAKA - GUMTI NATIONAL PARK, TARABA STATE , NIGERIA.

机译：Gashaka的陆地软体动物物种丰富和多样性 - 尼日利亚塔拉巴州Gumti国家公园。

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To assess the biodiversity of terrestrial molluscs in Gashaka-Gumti National Park, a four plot (20 x 20m) each within the park were sampled by searching the forest floor, tree trunk, fallen logs, root fades, and vegetation for the presence of mollusks. The species found were collected by hand picking. A total of 819 specimens comprising 22 species belonging to six molluscan families were collected from four plots. Each plot yielded between 8 tol4 species (Mean: 10, Standard Deviation:2.71) and 33 to683 individuals (Mean:204.75, Standard Deviation : 319.09). The most abundant species in the park was Curvella sp. represented by 683 individuals (79.4%) of the total sampled species. The most abundant family is Streptaxidae represented by 8 species (36.4%) of the total sample. The sample intensity was 37.22 while the Inventory Completeness is 79.31%. Eleven (11) species occurred as singleton across plots while ten (10) species occurred as doubleton across the four plots sampled.The Whittaker Index is 4.00. The rarefaction curve nearly reached an asymptote as sampling stopped. The nonparametric estimator Chao 2 and jackknife 2 were 28.05 and 33.99 of all sample collected. The dendogram of similarity by plots using Bray-Curtis similarity of index show the close relationship of two plots in terms of species. It shows that there is no significant difference between plots. Plot 1 and 4(P-0.4329), Plot 2 and 3 (P=0.9595), Plot 1 and 3 (P=0.2390), Plot 2 and 4 (P= 0.78). In conclusion/ the family Subulinidae has the most abundant individuals with 733 individuals representing 89.4% while Streptaxidae occur as the most abundant family with 8 species of the total sample.
机译：为了评估Gashaka-Gumti国家公园的陆地软体动物的生物多样性，通过搜索森林地板，树干，倒下的原木，掉落的原木，根褪色和植被，以在公园内进行四个地块（20 x 20m），以进行软体动物。 。发现的物种是通过手拾取收集的。从四个地块收集了总共819个标本，其中包括22种属于6个软体动物家族的物种。每个图在8个TOL4物种（平均值：10，标准偏差：2.71）和33至683个个体之间产生（平均值：204.75，标准偏差：319.09）。公园中最丰富的物种是库尔维拉（Curvella Sp）。由683个个体（79.4％）代表总样采样物种。最丰富的家族是链霉菌科代表的总样本的8种（36.4％）。样本强度为37.22，而库存完整性为79.31％。十一（11）种出现在跨地块的单例中，而十（10）个物种则以Doubleton的身份出现在所采样的四个地块中。惠特克指数为4.00。随着采样停止，稀疏曲线几乎达到了渐近线。非参数估计器Chao 2和折刀2分别为所有样品的28.05和33.99。使用Bray-Curtis相似性相似性相似性的模拟图显示了两个图在物种方面的密切关系。它表明图之间没有显着差异。图1和4（p-0.4329），图2和3（p = 0.9595），情节1和3（p = 0.2390），图2和4（p = 0.78）。总而言之/家族亚硫代科拥有最丰富的个体，有733个个体代表89.4％，而链霉菌是最丰富的家族，总样本中有8种。

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