Seasonal dynamics of macroinvertebrate community structure in a headwater stream in the Changbai Mountains

Lu, 王璐 Wang; Haijun, 杨海军 Yang; Kun, 李昆 Li; Ling, 李玲 Li; Xiaofei, 南晓飞 Nan; Zhenxing, 张振兴 Zhang

doi:10.5846/stxb201707121259

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“…The increased proportion of macroinvertebrates with "Bi-or multivoltine (Volt 3)", "Cool/warm eurythermal (Ther 2)" and "Small size at maturity (Size 1)" traits in the AM indicated that, the gradual increase in water temperature, the thermophilic macroinvertebrate eggs began to hatch (Füreder et al, 2005). In addition, macroinvertebrate taxa with the "Shredders (Trop 5)" traits also increased significantly due to the input of organic matters into streams (Wang et al, 2018). The rapid rebound in FRic, FDis, and RQE during this period reflected the quick response of macroinvertebrates to environmental changes and the gradual improvement in functional diversity under increasing temperature and food resources.…”

Section: Effects Of Snow and Ice Melt On Functional Characteristicsmentioning

confidence: 99%

Temporal changes in headwater streams macroinvertebrate assemblages during the snowmelt season in northeast china

Gao

Rong

Cao

et al. 2022

Front. Environ. Sci.

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Mid-latitude areas such as Northeast China are predicted to have warmer temperature according to IPCC sixth which may influence the duration of the snowmelt season. What remains unknown, however, is how annual snowmelt can influence the biodiversity of macroinvertebrate communities, especially in headwater streams in Northeast China. Here, we investigated the temporal changes (before, during, and after the snowmelt period) of macroinvertebrate communities and stream physicochemical characteristics in five headwater streams in Northeast China. We found that: (1) Macroinvertebrate taxa richness, density, Shannon diversity index, and functional diversity were lower in the melting period than in the other two periods, while biomass and percentage of dominant species were significantly higher in this period; (2) As to functional traits, “erosional”, “strong swimming ability”, “some attachment”, “streamlined shape” and “large size at maturity” traits of the macroinvertebrates taxa were significantly higher in the melting period than in the other two periods; and (3) Redundancy analysis (RDA) and multiple linear regression model found that temperature, turbidity, and velocity were key environmental factors affecting the functional traits of macroinvertebrates during the whole snowmelt process. This study could provide crucial data to support biodiversity conservation and ecosystem restoration of freshwater ecosystems in mid-to high-latitude and alpine areas.

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Section: Effects Of Snow and Ice Melt On Functional Characteristicsmentioning

confidence: 99%

Temporal changes in headwater streams macroinvertebrate assemblages during the snowmelt season in northeast china

Gao

Rong

Cao

et al. 2022

Front. Environ. Sci.

View full text Add to dashboard Cite

show abstract

Seasonal dynamics of macroinvertebrate community structure in a headwater stream in the Changbai Mountains

Cited by 1 publication

References 0 publications

Temporal changes in headwater streams macroinvertebrate assemblages during the snowmelt season in northeast china

Temporal changes in headwater streams macroinvertebrate assemblages during the snowmelt season in northeast china

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