Seasonal dynamics of arboreal spider diversity in a temperate forest.
Seasonal dynamics of arboreal spider diversity in a temperate forest.
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DOI：
10.1002/ece3.221
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发表时间：
2012-04
影响因子：
2.6
通讯作者：
Linsenmair, Karl Eduard
中科院分区：
文献类型：
--
作者：
Hsieh, Yu-Lung;Linsenmair, Karl Eduard
测量和估计生物多样性模式是科学家的一项基本任务，致力于支持保护并为管理决策提供信息。温带地区的大多数生物多样性研究往往是在很短的时间内进行的（例如，一个单一的季节），它是经常-至少是默认-假设这些短期的调查结果是长期的一般模式的代表。然而，如果研究的生物多样性格局实际上包含显着的时间动态，可能会导致矛盾的结论。在这里，我们研究了216个欧洲山毛榉（Fagus sylvatica L.）在以下季节评估蜘蛛群落组成：两个冷季（I：2005年11月至2006年1月; II：2月至4月）和两个暖季（III：5月至7月; IV：8月至10月）。我们表明，通常测量的暖季社区（IV：58估计物种）的多样性单独没有提供一个可靠的图像，目前在这些树木的整体多样性，因此，我们建议它不应该被用于采样协议，旨在提供一个完整的图片在温带森林的生物多样性。特别是，当包括其他季节（I，II，III）的额外采样时，估计的物种丰富度几乎翻了一番（108）。由于冬季条件恶劣，群落I的多样性和均匀度最低：该群落由一个优势种和多个低丰度种组成。季节性群落I和III之间的相似性最低（38.6%），表明由于群落的退化，物种的周转率很高，因此群落III具有最高的多样性。最后，使用非参数估计，我们发现，在冬季后期（2月至4月）进一步采样是最需要完成我们的库存。我们的研究清楚地表明，在研究蜘蛛的生物多样性模式时，应该考虑到群落的季节动态，可能还有一般的森林节肢动物。
Measuring and estimating biodiversity patterns is a fundamental task of the scientist working to support conservation and inform management decisions. Most biodiversity studies in temperate regions were often carried out over a very short period of time (e.g., a single season) and it is often—at least tacitly—assumed that these short-term findings are representative of long-term general patterns. However, should the studied biodiversity pattern in fact contain significant temporal dynamics, perhaps leading to contradictory conclusions. Here, we studied the seasonal diversity dynamics of arboreal spider communities dwelling in 216 European beeches (Fagus sylvatica L.) to assess the spider community composition in the following seasons: two cold seasons (I: November 2005–January 2006; II: February–April) and two warm seasons (III: May–July; IV: August–October). We show that the usually measured diversity of the warm season community (IV: 58 estimated species) alone did not deliver a reliable image of the overall diversity present in these trees, and therefore, we recommend it should not be used for sampling protocols aimed at providing a full picture of a forest's biodiversity in the temperate zones. In particular, when the additional samplings of other seasons (I, II, III) were included, the estimated species richness nearly doubled (108). Community I possessed the lowest diversity and evenness due to the harsh winter conditions: this community was comprised of one dominant species together with several species low in abundance. Similarity was lowest (38.6%) between seasonal communities I and III, indicating a significant species turnover due to recolonization, so that community III had the highest diversity. Finally, using nonparametric estimators, we found that further sampling in late winter (February–April) is most needed to complete our inventory. Our study clearly demonstrates that seasonal dynamics of communities should be taken into account when studying biodiversity patterns of spiders, and probably forest arthropods in general.
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影响因子：
5.9
作者：
Cardoso, P;Silva, I;Serrano, ARM
通讯作者：
Serrano, ARM
影响因子：
3.4
作者：
Leps, J;Spitzer, K;Jaros, J
通讯作者：
Jaros, J
影响因子：
4.8
作者：
Chao, Anne;Colwell, Robert K.;Gotelli, Nicholas J.
通讯作者：
Gotelli, Nicholas J.
DOI：
10.1073/pnas.0806830105
发表时间：
2008-11-04
影响因子：
11.1
作者：
Bonte, Dries;Travis, Justin M. J.;Lens, Luc
通讯作者：
Lens, Luc
影响因子：
4.8
作者：
Jost, Lou
通讯作者：
Jost, Lou