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| DOI | 10.23818/limn.43.09 |
| Benthic macroinvertebrates community structure and physical-chemical characteristics at Lauca River Basin high altitude wetlands, Altiplano, Chile | |
| Llanquin-Rosas, Francisco; Carcamo-Tejer, Violeta; Vila Pinto, Irma; Saez-Arteaga, Alberto; Correa-Araneda, Francisco; Guerrero-Jimenez, Claudia Jimena | |
| 发表日期 | 2024 |
| ISSN | 0213-8409 |
| EISSN | 1989-1806 |
| 起始页码 | 43 |
| 结束页码 | 1 |
| 卷号 | 43期号:1 |
| 英文摘要 | High Andean freshwater ecosystems are highly threatened by scarce water availability, species invasion, and global climate change, so generating knowledge about their ecological characteristics is extremely important for conservation decision-making. In this work, the seasonal variations and relationships between physico-chemical variables and the structure and composition of the macroinvertebrate community were analyzed considering season, type of ecosystem and site factors. Five sites of representative ecosystems at Lauca River Basin of the Chilean Altiplano were sampled, two of them lentic and three lotic. Two field-sampling periods within a year according to the pre- and post-rain seasons characteristic of the Altiplano climate were considered. Thirty-five taxa were identified, and it was observed that the taxa Orthocladiinae, Austrelmis sp., Hyallela cf kochi, Podonominae and Helicopsychidae were indicator taxa that contributed the most to differences among sites or ecosystems (>= 10 %.). No significant differences were found in the alpha diversity indicators used, except for some abundance values and Pielou's Evenness index (J '), which varied significantly between lotic and lentic systems. The results of the ordination analysis showed a significant differentiation considering physical and chemical variables and macroinvertebrates assemblages that responded to sites (ANOSIM R Global = 0.64, p = 0.001) and type of ecosystem factors (ANOSIM R Global = 0.31, p = 0.02). The season factor was not statistically significant to explain the variability of biological data (ANOSIM R Global = -0.003, p = 0.47) and was slight and marginally significant with the physical and chemical data (ANOSIM R Global = 0.1, p = 0.04). In addition, the linear redundancy analysis (RDA) showed that physico-chemical variables related to hardness, temperature, phosphorous, and nitrogen explained most of the variance in the biological data (the first two canonical axes RDA1 and RDA2 explained 45.23 % of the total variation, p = 0.004). These results support the relevance of local conditions for high altitude wetlands and how those environmental characteristics can be reflected in the macroinvertebrate assemblages that inhabit them. |
| 英文关键词 | biodiversity; endorheic basin; macroinvertebrate community; highland freshwater ecosystems |
| 语种 | 英语 |
| WOS研究方向 | Marine & Freshwater Biology |
| WOS类目 | Limnology ; Marine & Freshwater Biology |
| WOS记录号 | WOS:001153331600009 |
| 来源期刊 | LIMNETICA
 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/303817 |
| 作者单位 | Universidad de Chile; Universidad Catolica de Temuco; Universidad Autonoma de Chile; Universidad Autonoma de Chile |
| 推荐引用方式 GB/T 7714 | Llanquin-Rosas, Francisco,Carcamo-Tejer, Violeta,Vila Pinto, Irma,et al. Benthic macroinvertebrates community structure and physical-chemical characteristics at Lauca River Basin high altitude wetlands, Altiplano, Chile[J],2024,43(1). |
| APA | Llanquin-Rosas, Francisco,Carcamo-Tejer, Violeta,Vila Pinto, Irma,Saez-Arteaga, Alberto,Correa-Araneda, Francisco,&Guerrero-Jimenez, Claudia Jimena.(2024).Benthic macroinvertebrates community structure and physical-chemical characteristics at Lauca River Basin high altitude wetlands, Altiplano, Chile.LIMNETICA,43(1). |
| MLA | Llanquin-Rosas, Francisco,et al."Benthic macroinvertebrates community structure and physical-chemical characteristics at Lauca River Basin high altitude wetlands, Altiplano, Chile".LIMNETICA 43.1(2024). |
| 条目包含的文件 | 条目无相关文件。 | |||||
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