Functional diversity: a review of methodology and current knowledge in freshwater macroinvertebrate research
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- 作者：Dénes Schmera ; Jani Heino ; János Podani ; Tibor Erős ; Sylvain Dolédec
- 关键词：Environmental variables ; Functional redundancy ; Human impact ; Taxonomic resolution ; Traits
- 刊名：Hydrobiologia
- 出版年：2017
- 出版时间：February 2017
- 年：2017
- 卷：787
- 期：1
- 页码：27-44
- 全文大小：759KB
- 刊物类别：Biomedical and Life Sciences
- 刊物主题：Freshwater & Marine Ecology; Ecology; Zoology;
- 出版者：Springer International Publishing
- ISSN：1573-5117
- 卷排序：787
文摘
Although several studies have examined the functional diversity of freshwater macroinvertebrates, the variety of methodologies combined with the absence of a synthetic review make our understanding of this field incomplete. Therefore, we reviewed the current methodology for assessing functional diversity in freshwater macroinvertebrate research. Our review showed that most papers quantified functional diversity using biological traits, among which feeding habits were the most common traits probably due to the assumed links between feeding and ecosystem functions. A large number of diversity measures have been applied for quantifying functional diversity of freshwater macroinvertebrate assemblages, among which Rao’s quadratic entropy looks like the most frequent. In most papers, functional diversity was positively related to taxon richness, and functional redundancy was a key concept in explaining this correlation. Most studies detected strong influence of the environmental factors as well as human impact on functional diversity. Finally, our review revealed that functional diversity research is biased towards European running waters and is hindered by yet insufficient information on the autecology of macroinvertebrates.