A comparison of alpha and beta diversity patterns of ferns, bryophytes and macrolichens in tropical montane forests of southern Ecuador
A comparison of alpha and beta diversity patterns of ferns, bryophytes and macrolichens in tropical montane forests of southern Ecuador
复制标题
厄瓜多尔南部热带山地森林中蕨类植物、苔藓植物和大型地衣的α和β多样性模式比较
DOI：
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发表时间：
2010
影响因子：
3.4
通讯作者：
S. Gradstein
中科院分区：
文献类型：
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作者：
N. Mandl;M. Lehnert;M. Kessler;S. Gradstein
我们提出了第一个比较模式的α和β多样性的蕨类植物，苔藓，地钱和macrolichens在新热带山地雨林，并探讨是否特定的类群可用于替代他人的问题。在厄瓜多尔南部的三个地方，我们调查了陆地和附生物种组合在山脊和斜坡森林中的28个地块，每个400平方米。附生的栖息地是显着丰富的蕨类植物，苔类，和macrolichens比陆地栖息地，苔藓，但是，主要是陆地。蕨类植物和地钱的阿尔法多样性是一致的，在这两个栖息地。藓类植物与蕨类植物和地钱类植物相似，仅在附生生境中。大型地衣没有共享模式的阿尔法多样性与任何其他组。蕨类植物，苔藓和苔类（地衣排除由于物种丰富度低）的β多样性在陆地栖息地相似，但不是在附生栖息地。我们的研究结果表明，所研究的类群的α多样性的模式不能用来预测β多样性的模式。此外，在附生植物中观察到的多样性模式与陆生植物不同。我们注意到苔类植物和蕨类植物的物种模式大体上是一致的。多样性模式的大型地衣，相反，是完全独立于任何其他分类组的研究。
We present a first comparison of patterns of alpha and beta diversity of ferns, mosses, liverworts and macrolichens in neotropical montane rainforests, and explore the question whether specific taxa may be used as surrogates for others. In three localities in southern Ecuador, we surveyed terrestrial and epiphytic species assemblages in ridge and slope forests in 28 plots of 400 m² each. The epiphytic habitat was significantly richer in ferns, liverworts, and macrolichens than the terrestrial habitat; mosses, however, were primarily terrestrial. Alpha diversity of ferns and of liverworts was congruent in both habitats. Mosses were similar to ferns and liverworts only in the epiphytic habitat. Macrolichens did not share patterns of alpha diversity with any other group. Beta diversity of ferns, mosses and liverworts (lichens excluded due to low species richness) was similar in the terrestrial habitat, but not in the epiphytic habitat. Our results demonstrate that patterns of alpha diversity of the studied taxa cannot be used to predict patterns of beta diversity. Moreover, diversity patterns observed in epiphytes are different from terrestrial plants. We noted a general coincidence in species patterns of liverworts and ferns. Diversity patterns of macrolichens, in contrast, were completely independent from any other taxonomic group studied.