Drought effects on benthic macroinvertebrate community resilience and functional diversity in wetland mesocosms

IF 1.8 4区环境科学与生态学 Q3 ECOLOGY

Aquatic Ecology Pub Date : 2025-08-11 DOI:10.1007/s10452-025-10215-9

Min Kyung Kim, Tae Joong Yoon, Dong gun Kim

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Abstract

This study investigated the impacts of short-term (4 months) and long-term (8 months) drought on benthic macroinvertebrate (BMI) communities in wetland mesocosms, focusing on community composition, functional diversity, and resilience mechanisms. Using controlled experiments, we compared BMI communities in three treatments: control (C), short-term drought (S), and long-term drought (L). The results showed that drought duration significantly influenced on some community and functional diversity indices. While the C wetland maintained stable communities, S and L wetlands exhibited distinct recovery patterns post-drought. The S wetland demonstrated higher community similarity to pre-drought conditions compared to the L wetland, suggesting greater resilience to short-term disturbances. Functional diversity indices revealed complex responses, with drought altering feeding habits, living types, and voltinism traits. Long-term drought led to dominance by multivoltine species and reduced functional evenness. This study highlights the importance of drought duration in shaping BMI communities and emphasizes the need for long-term monitoring to understand wetland ecosystem recovery dynamics under climate change scenarios.

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干旱对湿地中生态系统底栖大型无脊椎动物群落恢复力和功能多样性的影响

研究了短期（4个月）和长期（8个月）干旱对湿地中生态系统底栖大型无脊椎动物（BMI）群落的影响，重点研究了群落组成、功能多样性和恢复机制。通过对照试验，我们比较了三种处理下的BMI群落：对照(C)、短期干旱(S)和长期干旱(L)。结果表明，干旱持续时间对部分群落和功能多样性指标有显著影响。C湿地保持群落稳定，S和L湿地在干旱后表现出不同的恢复模式。与L湿地相比，S湿地与干旱前条件具有更高的群落相似性，表明其对短期干扰的适应能力更强。功能多样性指数显示出复杂的响应，干旱改变了摄食习惯、生活方式和voltinism特征。长期干旱导致多伏特物种占优势，功能均一性降低。本研究强调了干旱持续时间在形成BMI群落中的重要性，并强调了长期监测的必要性，以了解气候变化情景下湿地生态系统恢复动态。

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来源期刊

Aquatic Ecology 环境科学-海洋与淡水生物学

CiteScore

3.90

自引率

0.00%

发文量

审稿时长

3 months

期刊介绍： Aquatic Ecology publishes timely, peer-reviewed original papers relating to the ecology of fresh, brackish, estuarine and marine environments. Papers on fundamental and applied novel research in both the field and the laboratory, including descriptive or experimental studies, will be included in the journal. Preference will be given to studies that address timely and current topics and are integrative and critical in approach. We discourage papers that describe presence and abundance of aquatic biota in local habitats as well as papers that are pure systematic. The journal provides a forum for the aquatic ecologist - limnologist and oceanologist alike- to discuss ecological issues related to processes and structures at different integration levels from individuals to populations, to communities and entire ecosystems.