Revisiting global trends in freshwater insect biodiversity: A reply,WIREs Water

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Revisiting global trends in freshwater insect biodiversity: A reply
WIREs Water ( IF 6.8 ) Pub Date : 2020-12-31 , DOI: 10.1002/wat2.1501
Roel Klink _{1,

2} , Diana E. Bowler _{1,

3,

4} , Konstantin B. Gongalsky _{5,

6} , Jonathan M. Chase _{1,

2}

Affiliation

Jähnig et al. make some useful points regarding the conclusions that can be drawn from our meta‐analysis; however, some issues require clarification. First, we never suggested that there was a globally increasing trend of freshwater insect abundances, but only spoke of an average increasing trend in the available data. We also did not suggest that freshwater quality has improved globally, but rather that documented improvements in water quality can explain at least some of the trends we observed. Second, as we acknowledged, our data are not a representative set of freshwater ecosystems around the world, but they are what is currently accessible. Third, there is indeed no doubt that changes in abundance or biomass need not correlate with changes in other aspects of biodiversity, such as species richness or functional composition. Our analysis was specifically focused on trends in community abundance/biomass because it has been the subject of recent study and speculation, and is a widely available metric in long‐term studies. To better understand the recent changes in freshwater insect assemblages, we encourage freshwater ecologists to further open their troves of data from countless long‐term monitoring schemes so that larger and more comprehensive syntheses can be undertaken.

中文翻译：

重新审视淡水昆虫生物多样性的全球趋势：答复

Jähnig等。对可以从我们的荟萃分析中得出的结论提出一些有用的观点；但是，有些问题需要澄清。首先，我们从不认为全球淡水昆虫的数量有增加的趋势，而只是说现有数据的平均增加趋势。我们也没有建议全球范围内的淡水水质有所改善，而是有记录的水质改善至少可以解释我们观察到的某些趋势。其次，正如我们所承认的那样，我们的数据并不是世界上代表性的淡水生态系统，但它们是当前可获取的。第三，毫无疑问，丰度或生物量的变化不必与生物多样性其他方面的变化相关，例如物种丰富度或功能组成。我们的分析特别关注于社区丰富度/生物量的趋势，因为它已成为近期研究和推测的主题，并且是长期研究中广泛使用的指标。为了更好地了解淡水昆虫组合的最新变化，我们鼓励淡水生态学家从无数的长期监测计划中进一步开放他们的大量数据，以便进行更大，更全面的综合。

更新日期：2021-02-05

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