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Lin X, Tian Z, Luo Q, Li J, Cai Q, Chiu MC, Resh VH. Spatial asymmetry of temporal ecological processes can shift in riverine macroinvertebrates responding to fluctuating climate conditions. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 952:175872. [PMID: 39218117 DOI: 10.1016/j.scitotenv.2024.175872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2024] [Revised: 08/21/2024] [Accepted: 08/27/2024] [Indexed: 09/04/2024]
Abstract
Exploring the temporal dynamics of biological communities can offer valuable insights into the underlying mechanisms driving changes in biodiversity in the context of short and long-term effects of climate fluctuations. However, an understanding of how temporal shifts in climatic fluctuations influence the spatial patterns of the temporary ecological processes remains unexplored. This study examined the relative importance of temporary deterministic and stochastic processes (i.e., the influence of environmental filtering compared to stochastic variation within the same community) on community dynamics across watersheds in 15 rivers of the European Iberian Peninsula using 21 years of data. This study was divided into two time periods (i.e., 1997-2006 and 2007-2017). The climatic differences between the periods included decreasing levels and heightened variability of precipitation. Additionally, there were declining minimum temperatures and rising maximum temperatures, accompanied by reduced fluctuations in both minimum and maximum temperatures. Water quality and its variations also occur along an elevation pattern and changed over the time period studied. Spatial patterns of the relative importance of the ecological processes shifted between the two decades. The significance of stochastic processes increased with elevation in the earlier period, although no clear elevation pattern emerged in the later period. At the same time, the importance of deterministic processes decreased with elevation in the earlier period, and there was no clear pattern of elevation in the later period. An understanding of the patterns in community dynamics existing at various elevations over time can lay the groundwork for predicting and mitigating the impacts of short-term climate changes on biodiversity and guide appropriate conservation actions.
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Affiliation(s)
- Xiaowei Lin
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China; College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing, China.
| | - Zhen Tian
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China.
| | - Qingyi Luo
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China; College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing, China; Department of Transdisciplinary Science and Engineering, Tokyo Institute of Technology, Tokyo 152-8550, Japan.
| | - Jingting Li
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China.
| | - Qinghua Cai
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China.
| | - Ming-Chih Chiu
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China.
| | - Vincent H Resh
- Department of Environmental Science, Policy & Management, University of California Berkeley, CA 94720, USA.
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Hernández-Lozano A, González-Zamora A, Baena ML, Perroni-Ventura Y, Juanz-Aguirre DG, Huesca-Domíguez I. Mountain caves of the central region of Veracruz: A vertebrate biodiversity reservoir in a Neotropical hotspot. PLoS One 2024; 19:e0306105. [PMID: 39121157 PMCID: PMC11315317 DOI: 10.1371/journal.pone.0306105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2023] [Accepted: 06/11/2024] [Indexed: 08/11/2024] Open
Abstract
The mountain region of central Veracruz, Mexico hosts a large system of karst and volcanic caves that are unexplored. In particular, the vertebrates that inhabit these subterranean ecosystems are unknown. This study evaluated the diversity of mammals, birds, reptiles, amphibians, and fish in three environments (euphotic, disphotic, and aphotic) of 16 caves of different geological origin (12 karst caves and 4 volcanic caves) distributed along an altitudinal gradient (300-2400 m a.s.l.). We found a richness of 242 vertebrate species (184 birds, 30 mammals, 15 reptiles, 12 amphibians, and 1 fish) and an abundance of a total of 11,323 individuals (4,969 mammals, 6,483 birds, 36 reptiles, 27 amphibians, and 5 fish). The richness of all vertebrate classes was higher in karst than in volcanic caves. Vertebrate diversity was also higher at mid-altitudes between 600-899 m a.s.l. Diversity varied between environments, where bird and reptile richness was higher in the euphotic environment, while mammal and amphibian diversity was higher in the aphotic environment. The similarity in the composition of vertebrate species does not depend on the distance between karstic and volcanic caves. Volcanic and karst caves shared on average up to 70% and 55% of vertebrate species, which indicates that only 30% and 45% of species, respectively, is different in each cave type. Given the vulnerability and fragility of these subterranean ecosystems, as well as the important diversity that they contain, we recommend including the caves of the central region of Veracruz in the conservation agenda of local governments and communities. Community-based conservation can help ensure the presence of vertebrate species in the caves of this region.
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Affiliation(s)
- Alberto Hernández-Lozano
- Instituto de Investigaciones Biológicas, Posgrado en Biología Integrativa, Universidad Veracruzana, Xalapa, Veracruz, Mexico
- Unidad de Manejo para la Conservación de la Vida Silvestre La Coruja, Alberto Calderón, Xalapa, Veracruz, Mexico
| | - Arturo González-Zamora
- Instituto de Investigaciones Biológicas, Academia de Zoología, Universidad Veracruzana, Xalapa, Veracruz, Mexico
| | - Martha L. Baena
- Instituto de Investigaciones Biológicas, Academia de Zoología, Universidad Veracruzana, Xalapa, Veracruz, Mexico
| | - Yareni Perroni-Ventura
- Instituto de Ecología y Biotecnología Aplicada, Campus para la Cultura, las Artes y el Deporte, Universidad Veracruzana, Xalapa, Veracruz, Mexico
| | - Diana Gisell Juanz-Aguirre
- Instituto de Investigaciones Biológicas, Posgrado en Biología Integrativa, Universidad Veracruzana, Xalapa, Veracruz, Mexico
- Unidad de Manejo para la Conservación de la Vida Silvestre La Coruja, Alberto Calderón, Xalapa, Veracruz, Mexico
| | - Israel Huesca-Domíguez
- Instituto de Investigaciones Biológicas, Academia de Zoología, Universidad Veracruzana, Xalapa, Veracruz, Mexico
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Wei M, Feng T, Lin Y, He S, Yan H, Qiao R, Chen Q. Elevation-associated pathways mediate aquatic biodiversity at multi-trophic levels along a plateau inland river. WATER RESEARCH 2024; 258:121779. [PMID: 38772321 DOI: 10.1016/j.watres.2024.121779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2024] [Revised: 04/24/2024] [Accepted: 05/13/2024] [Indexed: 05/23/2024]
Abstract
Aquatic biodiversity plays a significant role in maintaining the ecological balance and the overall health of riverine ecosystems. Elevation is an important factor influencing biodiversity patterns. However, it is still unclear through which pathway elevation influences riverine biodiversity at different trophic levels. In this study, the elevation-associated pathways affecting aquatic biodiversity at different trophic levels were explored using structural equation modeling (SEM) and taking the Bayin River, China as the case. The results showed that the elevational patterns were different among aquatic organisms at different trophic levels. For macroinvertebrates and bacteria, the pattern was hump-shaped; while for phytoplankton and zooplankton, it was U-shaped. Building upon these observed elevational patterns, our investigation delved into the direct and indirect pathways through which elevation influences aquatic biodiversity. We found that elevation exerts an impact on aquatic biodiversity via indirect pathways. For all aquatic organisms investigated, the major pathway through which elevation influences biodiversity is mediated by water temperature and water quality. For aquatic organisms at higher trophic levels, like macroinvertebrates and zooplankton, the crucial pathway is also mediated by the landscape. The results of this study contributed to understanding the effects of elevation on aquatic organisms at different trophic levels and provided an important basis for the assessment of riverine biodiversity at large scales.
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Affiliation(s)
- Mengru Wei
- Yangtze Institute for Conservation and Development, Nanjing 210098, China; Center for Eco-Environment Research, Nanjing Hydraulic Research Institute, Nanjing 210029, China; College of Hydrology and Water Resources, Hohai University, Nanjing 210098, China
| | - Tao Feng
- Center for Eco-Environment Research, Nanjing Hydraulic Research Institute, Nanjing 210029, China.
| | - Yuqing Lin
- Yangtze Institute for Conservation and Development, Nanjing 210098, China; Center for Eco-Environment Research, Nanjing Hydraulic Research Institute, Nanjing 210029, China
| | - Shufeng He
- Center for Eco-Environment Research, Nanjing Hydraulic Research Institute, Nanjing 210029, China
| | - Hanlu Yan
- Center for Eco-Environment Research, Nanjing Hydraulic Research Institute, Nanjing 210029, China
| | - Ruxia Qiao
- Center for Eco-Environment Research, Nanjing Hydraulic Research Institute, Nanjing 210029, China
| | - Qiuwen Chen
- Yangtze Institute for Conservation and Development, Nanjing 210098, China; Center for Eco-Environment Research, Nanjing Hydraulic Research Institute, Nanjing 210029, China; College of Hydrology and Water Resources, Hohai University, Nanjing 210098, China.
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Li R, Li X, Yang R, Farooq M, Tian Z, Xu Y, Shao N, Liu S, Xiao W. Bioassessment of Macroinvertebrate Communities Influenced by Gradients of Human Activities. INSECTS 2024; 15:131. [PMID: 38392550 PMCID: PMC10889158 DOI: 10.3390/insects15020131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Revised: 02/10/2024] [Accepted: 02/11/2024] [Indexed: 02/24/2024]
Abstract
This study explores the impact of anthropogenic land use changes on the macroinvertebrate community structure in the streams of the Cangshan Mountains. Through field collections of macroinvertebrates, measurement of water environments, and delineation of riparian zone land use in eight streams, we analyzed the relationship between land use types, stream water environments, and macroinvertebrate diversities. The results demonstrate urban land use type and water temperature are the key environmental factors driving the differences in macroinvertebrate communities up-, mid-, and downstream. The disturbed streams had lower aquatic biodiversity than those in their natural state, showing a decrease in disturbance-sensitive aquatic insect taxa and a more similar community structure. In the natural woodland area, species distributions may be constrained by watershed segmentation and present more complex community characteristics.
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Affiliation(s)
- Rui Li
- Institute of Eastern-Himalaya Biodiversity Research, Dali University, Dali 671003, China
- Collaborative Innovation Center for Biodiversity and Conservation in the Three Parallel Rivers Region of China, Dali 671003, China
- The Provincial Innovation Team of Biodiversity Conservation and Utility of the Three Parallel Rivers Region, Dali University, Dali 671003, China
| | - Xianfu Li
- Institute of Eastern-Himalaya Biodiversity Research, Dali University, Dali 671003, China
- Collaborative Innovation Center for Biodiversity and Conservation in the Three Parallel Rivers Region of China, Dali 671003, China
- The Provincial Innovation Team of Biodiversity Conservation and Utility of the Three Parallel Rivers Region, Dali University, Dali 671003, China
| | - Ronglong Yang
- Institute of Eastern-Himalaya Biodiversity Research, Dali University, Dali 671003, China
- Collaborative Innovation Center for Biodiversity and Conservation in the Three Parallel Rivers Region of China, Dali 671003, China
- The Provincial Innovation Team of Biodiversity Conservation and Utility of the Three Parallel Rivers Region, Dali University, Dali 671003, China
| | - Muhammad Farooq
- Institute of Eastern-Himalaya Biodiversity Research, Dali University, Dali 671003, China
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
| | - Zhen Tian
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
| | - Yaning Xu
- Institute of Eastern-Himalaya Biodiversity Research, Dali University, Dali 671003, China
- Collaborative Innovation Center for Biodiversity and Conservation in the Three Parallel Rivers Region of China, Dali 671003, China
- The Provincial Innovation Team of Biodiversity Conservation and Utility of the Three Parallel Rivers Region, Dali University, Dali 671003, China
| | - Nan Shao
- Institute of Eastern-Himalaya Biodiversity Research, Dali University, Dali 671003, China
- Collaborative Innovation Center for Biodiversity and Conservation in the Three Parallel Rivers Region of China, Dali 671003, China
- The Provincial Innovation Team of Biodiversity Conservation and Utility of the Three Parallel Rivers Region, Dali University, Dali 671003, China
| | - Shuoran Liu
- Institute of Eastern-Himalaya Biodiversity Research, Dali University, Dali 671003, China
- Collaborative Innovation Center for Biodiversity and Conservation in the Three Parallel Rivers Region of China, Dali 671003, China
- The Provincial Innovation Team of Biodiversity Conservation and Utility of the Three Parallel Rivers Region, Dali University, Dali 671003, China
| | - Wen Xiao
- Institute of Eastern-Himalaya Biodiversity Research, Dali University, Dali 671003, China
- Collaborative Innovation Center for Biodiversity and Conservation in the Three Parallel Rivers Region of China, Dali 671003, China
- The Provincial Innovation Team of Biodiversity Conservation and Utility of the Three Parallel Rivers Region, Dali University, Dali 671003, China
- Yunling Black-and-White Snub-Nosed Monkey Observation and Research Station of Yunnan Province, Dali 671003, China
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Zhang L, Li S, Zhang S, Cai H, Fang W, Shen Z. Recovery trajectories of the bacterial community at distances in the receiving river under wastewater treatment plant discharge. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 326:116622. [PMID: 36368207 DOI: 10.1016/j.jenvman.2022.116622] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2022] [Revised: 10/18/2022] [Accepted: 10/22/2022] [Indexed: 06/16/2023]
Abstract
Microbes in rivers are an important part of the biogeochemical cycle in aquatic ecosystems, and understanding the major factors that influence the composition of microbial communities has an important role in assessing and improving ecosystem functioning. A high-throughput 16 S rRNA gene sequencing technique was employed to sequence bacterial communities in 21 sediment samples and 21 water samples from an urban river WWTP (wastewater treatment plant) discharge. A systematic study of changes in bacterial community composition in downstream river sediment and water was conducted. The study found that compared with the bacterial diversity in the natural upstream area of the wastewater outfall, the bacterial diversity in the sediment lower reaches decreased significantly, while the bacterial abundance and diversity in the water increased significantly. The Mantel test and redundancy analysis showed that the downstream distance and physicochemical properties were significantly related to the succession of bacterial communities in the sediment downstream of the WWTP discharge. Among them, TOC (total organic carbon) was the most important factor affecting the change in the bacterial community in the downstream sediment. The physicochemical properties were significantly correlated with the succession of bacterial communities in the water downstream of the WWTP discharge. Among them, TN (total nitrogen), PO43--P (phosphorus phosphate) and TP (total phosphorus) were the main factors that affected the change in the bacterial community in the downstream water. Key taxa in the co-occurrence network at different distances downstream reflected the depth of the effect of the WWTP effluent on the bacterial community. The bacterial community in the lower reaches of the river sediment showed a strong recovery ability under the influence of pollutants, while the bacterial community in the lower reaches of the river water was difficult to recover under the influence of pollutants. In general, pollutants contained in effluent are the key to changing the composition of bacterial communities in the lower reaches of the river, but exogenous bacteria in effluent are not. This study provides a basis for further improving the effluent discharge standards of WWTPs in the future.
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Affiliation(s)
- Lei Zhang
- School of Civil Engineering and Architecture, Chuzhou University, Chuzhou, 239000, China.
| | - Shuo Li
- School of Civil Engineering and Architecture, Chuzhou University, Chuzhou, 239000, China
| | - Siqing Zhang
- School of Civil Engineering and Architecture, Chuzhou University, Chuzhou, 239000, China
| | - Hua Cai
- School of Civil Engineering and Architecture, Chuzhou University, Chuzhou, 239000, China
| | - Wangkai Fang
- School of Earth and Environment, Anhui University of Science & Technology, Huainan, 232000, China
| | - Zhen Shen
- Nanjing Institute of Geography and Limnology Chinese Academy of Sciences, Nanjing, 210008, China
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Evaluation of Gangetic dolphin habitat suitability under hydroclimatic changes using a coupled hydrological-hydrodynamic approach. ECOL INFORM 2022. [DOI: 10.1016/j.ecoinf.2022.101639] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Ao S, Li X, Tian Z, Hu J, Cai Q. Harmonizing and Searching Macroinvertebrate Trait Information in Alpine Streams: Method and Application–A Case Study in the Three Parallel Rivers Region, China. Front Ecol Evol 2022. [DOI: 10.3389/fevo.2022.945824] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The traits of organisms provide critical information for understanding changes in biodiversity and ecosystem function at large scales. In recent years, trait databases of macroinvertebrates have been developed across continents. Anyone using different databases to search for traits will encounter a series of problems that lead to uncertain results due to the inconsistency of the trait information. For example, traits for a particular macroinvertebrate taxon may be inconsistent across databases, coded in inconsistent ways, or cannot be found. However, most of the current studies do not clearly state their solutions, which seriously hinders the accuracy and comparability of global trait studies. To solve these problems, we collected representative databases from several continents, including the United States, Europe, South Africa, Bolivia, Australia, and New Zealand. By comparing the inconsistency of similar trait classifications in the nine databases, we harmonized 41 of these grouping features. We found that these databases differed widely in terms of the range and category of traits. And the method of coding traits also varies from database to database. Moreover, we showed a set of trait searching rules that integrate trait databases from different regions of the world, allowing traits to be identified more easily and uniformly using different trait databases worldwide. We also applied this method to determine the traits of 155 macroinvertebrate taxa in the Three Parallel Rivers Region (TPRR). The results showed that among a total of 155 macroinvertebrate taxa, the 41 grouping features of all genera were not fully identified, and 32 genera were not recorded (thus using family-level data). No trait information was found at all for two families, which contain two genera. This suggests that many macroinvertebrate taxa and their traits have not been fully studied, especially in those regions, including China, where macroinvertebrate trait studies are lagging. This inadequacy and unevenness have seriously hindered the study and development of macroinvertebrate trait and functional diversity worldwide. Our results complement the information on stream macroinvertebrate traits in the TPRR, a global biodiversity hotspot, and greatly promote the uniformity of global trait research and the accuracy and comparability of trait research in different regions.
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Li XF, Sun YK, Liu ZY, Jacobus LM, Xiao W. A new species of Notacanthella Jacobus & McCafferty, 2008 (Ephemeroptera, Ephemerellidae) from Yunnan, China. Zookeys 2022; 1103:25-44. [PMID: 36761787 PMCID: PMC9848866 DOI: 10.3897/zookeys.1103.82984] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Accepted: 04/28/2022] [Indexed: 11/12/2022] Open
Abstract
Notacanthellajinwu Li & Jacobus, sp. nov. is described based on egg, nymph, and winged stages from Dali Bai Autonomous Prefecture, Yunnan Province, China. The nymph of the new species is closely related to N.commodema (Allen, 1971), whose nymphs share a similar tuberculation of head, pronotum, and mesonotum. However, the nymph of our new species can be distinguished based on the structures of male sternum IX and abdominal tergal tubercles. In addition, the new species is distributed in subtropical high-altitude areas. The description of the male imago of the new species is the first certain one for the genus Notacanthella. Data associated with our new species allow for expanded discussion and diagnosis of Notacanthella and closely related genera. An identification key for nymphs of these groups is provided.
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Affiliation(s)
- Xian-Fu Li
- Institute of Eastern-Himalaya Biodiversity Research, Dali University, Dali 671000, Yunnan, China,Division of Science, Indiana University Purdue University Columbus, Columbus 47203, IN, USA
| | - Ye-Kang Sun
- Institute of Eastern-Himalaya Biodiversity Research, Dali University, Dali 671000, Yunnan, China
| | - Zi-Ye Liu
- Institute of Eastern-Himalaya Biodiversity Research, Dali University, Dali 671000, Yunnan, China
| | - Luke M. Jacobus
- Collaborative Innovation Center for Biodiversity and Conservation in the Tree Parallel Rivers Region of China, Dali University, Dali, Yunnan, China
| | - Wen Xiao
- Institute of Eastern-Himalaya Biodiversity Research, Dali University, Dali 671000, Yunnan, China,Division of Science, Indiana University Purdue University Columbus, Columbus 47203, IN, USA
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Wang B, He Y, Zhao Y, Cui Y. Distribution and Assemblage Variation of Benthic Macroinvertebrates: A Uniform Elevational Biodiversity Pattern Among Different Groups? Front Ecol Evol 2022. [DOI: 10.3389/fevo.2022.817708] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Biodiversity patterns along the elevational gradient of vertebrates have been widely focused on in previous studies, but they are still insufficient on invertebrates in lakes to a wide elevational extent. Based on field samplings and literature, we compared biodiversity patterns among different taxonomic groups of benthic macroinvertebrates in 104 lakes of China and India along an elevational gradient of 2–5,010 m a.s.l. and revealed the key driving factors, and then, we discussed the key mechanisms underlying elevational biodiversity patterns. We found that elevational biodiversity patterns of different taxonomic groups were not uniform, e.g., an exponentially decreasing pattern of Bivalvia, a first horizontal and then decreasing pattern of Gastropoda, and a linear decreasing pattern of Oligochaeta and Insecta. Elevation and elevation-controlled variables (temperature and salinity) were the key driving factors to biodiversity patterns. Their effects were strongest on Bivalvia and less on Gastropoda, whereas they were relatively weak on Oligochaeta and Insecta. Finally, we discussed three important mechanisms that shaped elevational biodiversity patterns and assemblage variations of benthic macroinvertebrates by linking our results with the classic hypotheses about biodiversity patterns, including climate/productivity, environmental heterogeneity, and dispersal/history. These results could improve our understanding of biodiversity patterns and biodiversity conservation.
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