侧向连通性维持了较高的淡水贻贝生物多样性

IF 2.8 2区 生物学 Q2 ECOLOGY Freshwater Biology Pub Date : 2024-07-22 DOI:10.1111/fwb.14296
Xiongjun Liu, Ronaldo Sousa, Shuhan Guo, Ruiwen Wu, Shan Ouyang, Xiaoping Wu
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引用次数: 0

摘要

淡水生态系统中横向水文连通性(LLHC)的丧失正日益威胁着生物多样性;然而,报告这种情况的研究却很有限,尤其是那些在大空间尺度上评估多测量生物多样性特征的研究。在此,我们利用淡水生态系统中最受威胁的分类群之一,研究了 LLHC 对长江冲积平原贻贝群的物种多样性、密度和生物量以及 Nodularia douglasiae(一种常见且广泛分布的本地物种)的遗传多样性和结构可能产生的影响。结果表明,淡水贻贝的物种多样性(α和β多样性)在连通区和断开区之间存在显著差异,连通区的α多样性较高,β多样性较低。同时,连通区域淡水贻贝的相对丰度、密度、生物量和遗传多样性均较高。在分析的 18 个 N. douglasiae 种群中,发现了高遗传分化和低基因流,这表明 LLHC 正在影响这一特定淡水贻贝物种的遗传结构。总之,研究结果表明,河湖连通性正在影响淡水贻贝的生物多样性。此外,本研究还强调,多测量生物多样性特征可提供有关生物多样性动态的独特信息,对于评估洪泛区断裂的影响至关重要。我们主张,为了有效保护大型河流生态系统的生物多样性,需要采取一种包含物种和遗传多样性的洪泛区综合管理方法。
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Lateral connectivity maintains higher freshwater mussel biodiversity

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来源期刊
Freshwater Biology
Freshwater Biology 生物-海洋与淡水生物学
CiteScore
5.90
自引率
3.70%
发文量
162
审稿时长
2 months
期刊介绍: Freshwater Biology publishes papers on all aspects of the ecology of inland waters, including rivers and lakes, ground waters, flood plains and other freshwater wetlands. We include studies of micro-organisms, algae, macrophytes, invertebrates, fish and other vertebrates, as well as those concerning whole systems and related physical and chemical aspects of the environment, provided that they have clear biological relevance. Studies may focus at any level in the ecological hierarchy from physiological ecology and animal behaviour, through population dynamics and evolutionary genetics, to community interactions, biogeography and ecosystem functioning. They may also be at any scale: from microhabitat to landscape, and continental to global. Preference is given to research, whether meta-analytical, experimental, theoretical or descriptive, highlighting causal (ecological) mechanisms from which clearly stated hypotheses are derived. Manuscripts with an experimental or conceptual flavour are particularly welcome, as are those or which integrate laboratory and field work, and studies from less well researched areas of the world. Priority is given to submissions that are likely to interest a wide range of readers. We encourage submission of papers well grounded in ecological theory that deal with issues related to the conservation and management of inland waters. Papers interpreting fundamental research in a way that makes clear its applied, strategic or socio-economic relevance are also welcome. Review articles (FRESHWATER BIOLOGY REVIEWS) and discussion papers (OPINION) are also invited: these enable authors to publish high-quality material outside the constraints of standard research papers.
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