Concordance among lacustrine communities are low and inconsistent in the conterminous United States.

IF 2.3 2区 环境科学与生态学 Q2 ECOLOGY
Oecologia Pub Date : 2024-06-01 Epub Date: 2024-05-31 DOI:10.1007/s00442-024-05573-4
Carlos H L Liborio, Luis M Bini
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引用次数: 0

Abstract

Concordance occurs when two or more biological groups are correlated to each other. Examining the degree of concordance between communities has been a central goal in ecology. However, few studies have assessed the levels of community concordance at large spatial scales. We used a dataset obtained by the National Lakes Assessment (United States Environmental Protection Agency) to evaluate whether (i) the levels of concordance between aquatic communities were higher at the continental scale than within individual ecoregions of the United States and (ii) whether the levels of concordance between phytoplankton and zooplankton were higher than those between the plankton and macroinvertebrates communities. At the continental scale, the levels of concordance between different pairs of aquatic communities were low and did not exceed those within the ecoregions. Furthermore, levels of concordance varied considerably among ecoregions. Our results suggest that interactions between aquatic communities likely determined concordance patterns; however, the expectation of higher levels of concordance between the phytoplankton and zooplankton communities than between them and the macroinvertebrates community was not supported. The consistently low and variable levels of concordance suggest that using surrogate groups is not recommendable for monitoring lakes in the United States, both at the continental and regional scales. According to our results, the prospect of using the surrogacy approach was low even for aquatic communities that are highly interactive or driven by similar environmental factors.

Abstract Image

在美国本土,湖沼群落之间的一致性很低,而且不一致。
当两个或两个以上的生物群落相互关联时,就会出现一致性。研究群落间的一致程度一直是生态学的核心目标。然而,很少有研究对大空间尺度上的群落一致性水平进行评估。我们利用国家湖泊评估(美国环境保护局)获得的数据集,评估了(i)在美国大陆尺度上,水生群落之间的协调程度是否高于单个生态区域内的协调程度,以及(ii)浮游植物和浮游动物之间的协调程度是否高于浮游生物和大型无脊椎动物群落之间的协调程度。在大陆范围内,不同对水生群落之间的一致性水平较低,没有超过生态区内的一致性水平。此外,不同生态区之间的吻合程度也有很大差异。我们的研究结果表明,水生群落之间的相互作用可能决定了一致性模式;然而,浮游植物群落和浮游动物群落之间的一致性水平高于浮游植物群落和大型无脊椎动物群落之间的一致性水平的预期并没有得到支持。一致性水平一直较低且不稳定,这表明在美国的湖泊监测中,无论是大陆尺度还是区域尺度,都不建议使用代用群组。根据我们的研究结果,即使对于高度互动或受类似环境因素影响的水生群落,使用代用方法的前景也很渺茫。
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来源期刊
Oecologia
Oecologia 环境科学-生态学
CiteScore
5.10
自引率
0.00%
发文量
192
审稿时长
5.3 months
期刊介绍: Oecologia publishes innovative ecological research of international interest. We seek reviews, advances in methodology, and original contributions, emphasizing the following areas: Population ecology, Plant-microbe-animal interactions, Ecosystem ecology, Community ecology, Global change ecology, Conservation ecology, Behavioral ecology and Physiological Ecology. In general, studies that are purely descriptive, mathematical, documentary, and/or natural history will not be considered.
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