Effects of stream drying, season, and distance to refuge on macroinvertebrate community structure in an arid intermittent stream basin
Effects of stream drying, season, and distance to refuge on macroinvertebrate community structure in an arid intermittent stream basin
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河流干燥、季节和避难所距离对干旱间歇性河流盆地大型无脊椎动物群落结构的影响
DOI：
10.1002/eco.2598
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发表时间：
2023
期刊：
影响因子：
2.6
通讯作者：
Bogan, Michael T.
中科院分区：
文献类型：
--
作者：
Hollien, Kelsey D.;Gill, Brian A.;Eppehimer, Drew E.;Bogan, Michael T.
间歇流在全球范围内普遍存在，并且在流网络中占很大比例。由于许多干旱地区的气候变化增加了干旱干扰的频率和强度，因此必须了解水生生物群将如何应对这种干扰以及它将如何影响水生生物多样性。为了解决这些问题，我们在西卡莫尔河流域（美国亚利桑那州中部的一条干旱河流）的10个河段进行了采样，河段规模的水流状态从常年到高度间歇性。我们采样水生大型无脊椎动物在4个季节，通过流动和干燥阶段，探索群落结构的季节性变化。我们还收集了连续流数据与远程数据记录器，以探讨的影响，不透明度和距离常年庇护所的物种丰富度，分类组成和性状组成。总体而言，丰富度是较低的间歇性河段比常年河段，丰富度值线性增加流持续时间的增加。我们没有发现丰富和距离最近的常年避难所之间的关系。群落组合显着不同的季节，但没有明显的多年生和间歇性河段。性状组成也是不同的季节和流量制度，与性状，如缺乏滞育，较长的寿命和捕食性摄食行为的指标，常年达到。由于气候变化改变了自然流动状况，了解大型无脊椎动物群落结构对干旱河流干燥干扰的反应可以提供更大尺度上水生群落对气候变化反应的见解。
Intermittent streams are globally ubiquitous and represent a large percentage of stream networks. As climate change in many arid regions increases the frequency and intensity of drying disturbances, it is important to understand how aquatic biota will respond to such disturbances and how it would impact aquatic biodiversity. To address these topics, we sampled 10 stream reaches in the Sycamore Creek basin, an arid‐land stream in central Arizona (USA), with reach‐scale flow regimes ranging from perennial to highly intermittent. We sampled aquatic macroinvertebrates during 4 seasons to explore seasonal variability in community structure through flowing and drying phases. We also collected continuous flow data with remote data loggers to explore the impacts of intermittency and distance to perennial refuges on species richness, taxonomic composition and trait composition. Overall, richness was lower at intermittent reaches than perennial reaches, and richness values increased linearly as flow duration increased. We found no relationship between richness and distance to the nearest perennial refuge. Community assemblages differed significantly by season but were not distinct between perennial and intermittent reaches. Trait composition was also distinct between seasons and flow regimes, with traits such as a lack of diapause, longer life span and predatory feeding behaviours being indicators for perennial reaches. As climate change alters natural flow regimes, understanding the responses of macroinvertebrate community structure to drying disturbances in arid‐land streams can provide insight on aquatic community responses to climate change at larger scales.
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干旱地区岩石池水生大型无脊椎动物扩散和功能性摄食特征的全球模式
影响因子：
4.6
作者：
Susan Washko;M. Bogan
通讯作者：
M. Bogan
DOI：
10.1899/28.1br.266.1
发表时间：
2009-03
期刊：
--
影响因子：
--
作者：
B. Kondratieff
通讯作者：
B. Kondratieff
为什么生活史信息很重要：干旱避难所和大型无脊椎动物在气候干燥的非常年溪流中的持久存在
影响因子：
1.8
作者：
B. Robson;E. Chester;C. Austin
通讯作者：
C. Austin
影响因子：
4.8
作者：
Boersma, Kate S.;Dee, Laura E.;Gitelman, Alix I.
通讯作者：
Gitelman, Alix I.
影响因子：
2.7
作者：
Bogan, Michael T.;Boersma, Kate S.;Lytle, David A.
通讯作者：
Lytle, David A.