虎蟹(十足目,虎蟹科)已知分布范围的扩大和生境利用

IF 1.2 4区 环境科学与生态学 Q4 LIMNOLOGY Limnetica Pub Date : 2022-01-15 DOI:10.23818/limn.41.13
F. Correa-Araneda, Ximena Jaque-Jaramillo, C. Esse, Pablo Saavedra, Alfredo Ulloa-Yáñez, Juan Martin, P. R. De los Ríos-Escalante, L. Boyero, Katalina Ovalle
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引用次数: 0

摘要

概念虎蟹(Aegla concepcionensis Schmitt, 1942)是智利特有的濒危淡水十足动物,对其生物学和生态学的认识还存在很大的空白。本工作的目的是通过扩大其已知的分布范围,记录在一个新的生态系统中,并描述这些地点的物理化学、植被和底栖大型无脊椎动物和微藻群落,为该物种的栖息地利用提供信息,从而促进对该物种生态学的认识。我们的研究结果表明,在先前描述的范围以南270公里处,存在着A. concepcionensis,并揭示了该物种栖息在溪流和湖泊中。A. concepcionensis与寒冷和温带水域环境有关,氧合良好,pH值中性,电导率低,人为干预程度低,体现在原生河流植物物种比例高,大型无脊椎动物和微藻底栖群落多样性高。我们认为,这一物种的已知分布范围有限,主要是由于采样努力低或误认。研究结果表明,在城市扩张区和河流湖泊旅游活动区,应尽量避免或减少人工干预。水土保持学报,41(1):163-179(2022)。DOI: 10.23818 / limn.41.13
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Extension of the known distribution range and habitat use of the Tiger Crab Aegla concepcionensis Schmitt, 1942 (Decapoda, Aeglidae)
Extension of the known distribution range and habitat use of the Tiger Crab Aegla concepcionensis Schmitt, 1942 (Decapoda, Aeglidae) The tiger crab Aegla concepcionensis Schmitt, 1942 (Decapoda, Aeglidae) is a threatened freshwater decapod, endemic of Chile, with significant gaps in knowledge about its biology and ecology. The aim of this work was to contribute to the knowledge of the ecology of A. concepcionensis, through the extension of its known distribution range, recorded in a new type of ecosystem, and the description of the physicochemistry, vegetation and benthic macroinvertebrate and microalgal communities of those sites, which provides information about habitat use of the species. Our results show the presence of A. concepcionensis until 270 km south of the previously described range and reveal that the species inhabits streams and lakes. A. concepcionensis is associated to environments with cold and temperate waters, well oxygenated, with neutral pH and low conductivity, and characterized by low anthropic intervention, which is reflected in the high proportion of native riverine plant species and the high diversity of macroinvertebrate and microalgal benthic communities. We conclude that the previously restricted known distribution range of this species was mainly due to low sampling effort or misidentifications. Our results indicate that anthropic intervention should be avoided or minimized in the distribution area of A. concepcionensis, especially in those areas associated with urban expansion and touristic activities in streams and lakes. Limnetica, 41(1): 163-179 (2022). DOI: 10.23818/limn.41.13
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来源期刊
Limnetica
Limnetica LIMNOLOGY-MARINE & FRESHWATER BIOLOGY
CiteScore
3.70
自引率
7.10%
发文量
26
审稿时长
>12 weeks
期刊介绍: Limnetica publishes original research articles on the ecology of inland waters. The scope of Limnetica includes the ecology of rivers, lakes, reservoirs, coastal lagoons and wetlands, as well as biogeochemistry, paleolimnology, development of new methodologies, taxonomy, biogeography and any aspect of theoretical and applied continental aquatic ecology such as management and conservation, impact assessment, ecotoxicology and pollution. Limnetica will accept for its publication scientific articles presenting advances in knowledge or technological development, as well as as papers derived from new practical approaches on the topics covered by the journal.
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