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Huang L, Jiang L, Zhang Y, Yuan T, Sun Y, Liu C, Lei X, Yuan X, Lian J, Liu S, Huang H. Distribution patterns of reef-building corals in the Northwest Pacific and their environmental drivers. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 946:174429. [PMID: 38960185 DOI: 10.1016/j.scitotenv.2024.174429] [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: 03/21/2024] [Revised: 06/27/2024] [Accepted: 06/30/2024] [Indexed: 07/05/2024]
Abstract
Understanding species distribution and the related driving processes is a fundamental issue in ecology. However, incomplete data on reef-building corals in the ecoregions of the South China Sea have hindered a comprehensive understanding of coral distribution patterns and their ecological drivers in the Northwest Pacific (NWP). This study investigated the coral species diversity and distribution patterns in the NWP by collecting species presence/absence data from the South China Sea and compiling an extensive species distribution database for the region, and explored their major environmental drivers. Our NWP coral database included 612 recorded coral species across 15 ecoregions. Of these, 536 coral species were recorded in the South China Sea Oceanic Islands after compilation, confirming the extraordinary coral species diversity in this ecoregion. Coral alpha diversity was found to decrease with increasing latitude in the whole NWP, while the influence of the Kuroshio Current on environmental conditions in its path results in a slower decline in species richness with latitude compared to regions within the South China Sea. Beta-diversity decomposition revealed that nestedness patterns mainly occurred between low and high latitude ecoregions, while communities within similar latitudes exhibited a turnover component, particularly pronounced at high latitudes. The impact of environmental factors on coral assemblage structure outweighed the effects of spatial distance. Temperature, especially winter temperature, and light intensity strongly influenced alpha diversity and beta diversity's nestedness component. Additionally, turbidity and winter temperature variations at high latitudes contributed to the turnover pattern observed among communities in the NWP. These findings elucidate the assembly processes and major environmental drivers shaping different coral communities in the NWP, highlighting the significant role of specific environmental filtering in coral distribution patterns and providing valuable insights for coral species conservation efforts.
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Affiliation(s)
- Lintao Huang
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Lei Jiang
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China; Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou 511458, China
| | - Yuyang Zhang
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China; Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou 511458, China
| | - Tao Yuan
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China; Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou 511458, China
| | - Youfang Sun
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China; Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou 511458, China
| | - Chengyue Liu
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China; Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou 511458, China
| | - Xinming Lei
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China
| | - Xiangcheng Yuan
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China
| | - Jiansheng Lian
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China; Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou 511458, China
| | - Sheng Liu
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China
| | - Hui Huang
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China; Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou 511458, China; CAS-HKUST Sanya Joint Laboratory of Marine Science Research, Key Laboratory of Tropical Marine Biotechnology of Hainan Province, Sanya 572000, China; Sanya National Marine Ecosystem Research Station, Tropical Marine Biological Research Station in Hainan, Chinese Academy of Sciences, Sanya 572000, China.
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Zhu Y, Tu X, Bi Y, Song G, Mi W. Competition in the Periphytic Algal Community during the Colonization Process: Evidence from the World's Largest Water Diversion Project. PLANTS (BASEL, SWITZERLAND) 2024; 13:2067. [PMID: 39124185 PMCID: PMC11314427 DOI: 10.3390/plants13152067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2024] [Revised: 07/17/2024] [Accepted: 07/24/2024] [Indexed: 08/12/2024]
Abstract
Periphytic algal colonization is common in aquatic systems, but its interspecific competition remains poorly understood. In order to fill the gap, the process of periphytic algal colonization in the Middle Route of the South to North Water Diversion Project was studied. The results showed that the process was divided into three stages: the initial colonization stage (T1, 3-6 days), community formation stage (T2, 12-18 days) and primary succession stage (T3, 24-27 days). In T1, the dominant species were Diatoma vulgaris (Bory), Navicula phyllepta (Kützing) and Fragilaria amphicephaloides (Lange-Bertalot) belonging to Heterokontophyta; these species boasted wide niche widths (NWs), low niche overlap (NO) and low ecological response rates (ERRs). In T2, the dominant species were Diatoma vulgaris, Cymbella affinis (Kützing), Navicula phyllepta, Fragilaria amphicephaloides, Gogorevia exilis (Kützing), Melosira varians (C.Agardh), Phormidium willei (N.L.Gardner) and Cladophora rivularis (Kuntze). These species displayed wider NWs, lower NO, and lower ERRs than those in T1. In T3, the dominant species were Diatoma vulgaris, Cymbella affinis, Navicula phyllepta, Fragilaria amphicephaloides, Achnanthes exigu (Grunow), etc. Among them, Heterokontophyta such as Diatoma vulgaris and Cymbella affinis had a competitive advantage based on NWs and ERRs. Cyanobacteria like Phormidium willei lost their dominant status due to the narrower NW and the increased NO. It could be concluded the interspecific competition became fiercer and shaped the colonization process; this study will be helpful in understanding the colonization of periphytic algal communities.
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Affiliation(s)
- Yuxuan Zhu
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; (Y.Z.); (Y.B.); (G.S.)
| | - Xiaojie Tu
- Hubei Key Laboratory of Resources and Eco-Environment Geology (Hubei Geological Bureau), Wuhan 430034, China;
| | - Yonghong Bi
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; (Y.Z.); (Y.B.); (G.S.)
| | - Gaofei Song
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; (Y.Z.); (Y.B.); (G.S.)
| | - Wujuan Mi
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; (Y.Z.); (Y.B.); (G.S.)
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Rbiai O, Badaoui B, Chlaida M. Temporal β-diversity decomposition: Insights into fish biodiversity dynamics in the Moroccan South Atlantic. MARINE ENVIRONMENTAL RESEARCH 2024; 198:106504. [PMID: 38636277 DOI: 10.1016/j.marenvres.2024.106504] [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: 01/02/2024] [Revised: 04/09/2024] [Accepted: 04/10/2024] [Indexed: 04/20/2024]
Abstract
Understanding the various aspects of temporal β-diversity and their relationships can profoundly enhance the knowledge of the intricate dynamics of biodiversity over temporal scales. In this study, we examined extensive data on fish in the Moroccan South Atlantic, to quantify taxonomic and functional temporal β-diversity over three five-year periods, determine the relative contributions of turnover and nestedness to each facet, and elucidate the relationship between taxonomic and functional temporal β-diversity including their components using temporal and spatial comparisons. Our findings revealed a complex relationship between taxonomic and functional temporal β-diversity, with decoupled variation often observed. Furthermore, the predominant component of functional temporal β-diversity was functional nestedness, while species turnover had a greater impact on taxonomic temporal β-diversity. A noteworthy observation was the significant fluctuation in the turnover and nestedness components, despite consistent temporal β-diversity. These insights underscore the pivotal role of temporal β-diversity decomposition and advocate for the integration of functional aspects in temporal biodiversity research to provide additional key indicators for biodiversity sustainable management.
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Affiliation(s)
- Oussama Rbiai
- Biodiversity, Ecology and Genome Laboratory, Faculty of Sciences (FSR), Mohammed V University in Rabat (UM5), 4 Avenue Ibn Battouta, B.P. 1014 RP, Rabat, Morocco; Department of Fisheries Resources, National Institute of Fisheries Research (INRH), 2 BD Sidi Abderrahman 2, Ain Diab, 20180, Casablanca, Morocco
| | - Bouabid Badaoui
- Biodiversity, Ecology and Genome Laboratory, Faculty of Sciences (FSR), Mohammed V University in Rabat (UM5), 4 Avenue Ibn Battouta, B.P. 1014 RP, Rabat, Morocco; African Sustainable Agriculture Research Institute (ASARI), Mohammed VI University (UM6P), Laâyoune, Morocco
| | - Malika Chlaida
- Department of Fisheries Resources, National Institute of Fisheries Research (INRH), 2 BD Sidi Abderrahman 2, Ain Diab, 20180, Casablanca, Morocco.
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Marinchel N, Marchesini A, Nardi D, Girardi M, Casabianca S, Vernesi C, Penna A. Mock community experiments can inform on the reliability of eDNA metabarcoding data: a case study on marine phytoplankton. Sci Rep 2023; 13:20164. [PMID: 37978238 PMCID: PMC10656442 DOI: 10.1038/s41598-023-47462-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2023] [Accepted: 11/14/2023] [Indexed: 11/19/2023] Open
Abstract
Environmental DNA metabarcoding is increasingly implemented in biodiversity monitoring, including phytoplankton studies. Using 21 mock communities composed of seven unicellular diatom and dinoflagellate algae, assembled with different composition and abundance by controlling the number of cells, we tested the accuracy of an eDNA metabarcoding protocol in reconstructing patterns of alpha and beta diversity. This approach allowed us to directly evaluate both qualitative and quantitative metabarcoding estimates. Our results showed non-negligible rates (17-25%) of false negatives (i.e., failure to detect a taxon in a community where it was included), for three taxa. This led to a statistically significant underestimation of metabarcoding-derived alpha diversity (Wilcoxon p = 0.02), with the detected species richness being lower than expected (based on cell numbers) in 8/21 mock communities. Considering beta diversity, the correlation between metabarcoding-derived and expected community dissimilarities was significant but not strong (R2 = 0.41), indicating suboptimal accuracy of metabarcoding results. Average biovolume and rDNA gene copy number were estimated for the seven taxa, highlighting a potential, though not exhaustive, role of the latter in explaining the recorded biases. Our findings highlight the importance of mock communities for assessing the reliability of phytoplankton eDNA metabarcoding studies and identifying their limitations.
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Affiliation(s)
- Nadia Marinchel
- Department of Pure and Applied Sciences, University of Urbino, Urbino, Italy.
- Department of Biomolecular Sciences, University of Urbino, Urbino, Italy.
| | - Alexis Marchesini
- Research Institute on Terrestrial Ecosystems (IRET), National Research Council (CNR), Porano, Italy
- National Biodiversity Future Center, Palermo, Italy
| | - Davide Nardi
- DAFNAE, University of Padova, Legnaro, PD, Italy
| | - Matteo Girardi
- Conservation Genomics Research Unit, Research and Innovation Centre, Fondazione Edmund Mach, S. Michele all'Adige, Italy
| | - Silvia Casabianca
- Department of Biomolecular Sciences, University of Urbino, Urbino, Italy
- Fano Marine Center, Inter-Institute Center for Research on Marine Biodiversity, Resources and Biotechnologies, Fano, Italy
- CoNISMa, National Inter-University Consortium for Marine Sciences, Rome, Italy
| | - Cristiano Vernesi
- National Biodiversity Future Center, Palermo, Italy
- Forest Ecology Unit, Research and Innovation Centre, Fondazione Edmund Mach, S. Michele all'Adige, Italy
| | - Antonella Penna
- Department of Biomolecular Sciences, University of Urbino, Urbino, Italy.
- Fano Marine Center, Inter-Institute Center for Research on Marine Biodiversity, Resources and Biotechnologies, Fano, Italy.
- CoNISMa, National Inter-University Consortium for Marine Sciences, Rome, Italy.
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Yuan H, Zhang R, Li Q, Han Q, Lu Q, Wu J. Unveiling the ecological significance of phosphorus fractions in shaping bacterial and archaeal beta diversity in mesotrophic lakes. Front Microbiol 2023; 14:1279751. [PMID: 37886062 PMCID: PMC10598868 DOI: 10.3389/fmicb.2023.1279751] [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: 08/25/2023] [Accepted: 09/27/2023] [Indexed: 10/28/2023] Open
Abstract
Both community variation and phosphorus (P) fractions have been extensively studied in aquatic ecosystems, but how P fractions affect the mechanism underlying microbial beta diversity remains elusive, especially in sediment cores. Here, we obtained two sediment cores to examine bacterial and archaeal beta diversity from mesotrophic lakes Hongfeng Lake and Aha Lake, having historically experienced severe eutrophication. Utilizing the Baselga's framework, we partitioned bacterial and archaeal total beta diversity into two components: species turnover and nestedness, and then examined their sediment-depth patterns and the effects of P fractions on them. We found that total beta diversity, species turnover or nestedness consistently increased with deeper sediment layers regarding bacteria and archaea. Notably, there were parallel patterns between bacteria and archaea for total beta diversity and species turnover, which is largely underlain by equivalent processes such as environmental selection. For both microbial taxa, total beta diversity and species turnover were primarily constrained by metal oxide-bound inorganic P (NaOH-Pi) and sediment total phosphorus (STP) in Hongfeng Lake, while largely affected by reductant-soluble total P or calcium-bound inorganic P in Aha Lake. Moreover, NaOH-Pi and STP could influence bacterial total beta diversity by driving species nestedness in Hongfeng Lake. The joint effects of organic P (Po), inorganic P (Pi) and total P fractions indicated that P fractions are important to bacterial and archaeal beta diversity. Compared to Po fractions, Pi fractions had greater pure effects on bacterial beta diversity. Intriguingly, for total beta diversity and species turnover, archaea rather than bacteria are well-explained by Po fractions in both lakes, implying that the archaeal community may be involved in Po mineralization. Overall, our study reveals the importance of P fractions to the mechanism underlying bacterial and archaeal beta diversity in sediments, and provides theoretical underpinnings for controlling P sources in biodiversity conservation.
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Affiliation(s)
- Haijun Yuan
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Runyu Zhang
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, China
| | - Qiuxing Li
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, China
- College of Earth Science, Chengdu University of Technology, Chengdu, China
| | - Qiao Han
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Qiping Lu
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Jing Wu
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, China
- University of Chinese Academy of Sciences, Beijing, China
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Bevilacqua S, Boero F, De Leo F, Guarnieri G, Mačić V, Benedetti-Cecchi L, Terlizzi A, Fraschetti S. β-diversity reveals ecological connectivity patterns underlying marine community recovery: Implications for conservation. ECOLOGICAL APPLICATIONS : A PUBLICATION OF THE ECOLOGICAL SOCIETY OF AMERICA 2023:e2867. [PMID: 37114630 DOI: 10.1002/eap.2867] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 03/30/2023] [Accepted: 04/19/2023] [Indexed: 05/17/2023]
Abstract
As β-diversity can be seen as a proxy of ecological connections among species assemblages, modeling the decay of similarity in species composition at increasing distance may help elucidate spatial patterns of connectivity and local- to large-scale processes driving community assembly within a marine region. This, in turn, may provide invaluable information for setting ecologically coherent networks of marine protected areas (MPAs) in which protected communities are potentially interrelated and can mutually sustain against environmental perturbations. However, field studies investigating changes in β-diversity patterns at a range of spatial scales and in relation to disturbance are scant, limiting our understanding of how spatial ecological connections among marine communities may affect their recovery dynamics. We carried out a manipulative experiment simulating a strong physical disturbance on subtidal rocky reefs at several locations spanning >1000 km of coast in the Adriatic Sea (Mediterranean Sea) and compared β-diversity patterns and decay of similarity with distance and time by current transport between undisturbed and experimentally disturbed macrobenthic assemblages to shed light on connectivity processes and scales involved in recovery. In contrast to the expectation that very local-scale processes, such as vegetative regrowth and larval supply from neighboring undisturbed assemblages, might be the major determinants of recovery in disturbed patches, we found that connectivity mediated by currents at larger spatial scales strongly contributed to shape community reassembly after disturbance. Across our study sites in the Adriatic Sea, β-diversity patterns suggested that additional protected sites that matched hotspots of propagule exchange could increase the complementarity and strengthen the ecological connectivity throughout the MPA network. More generally, conditional to habitat distribution and selection of sites of high conservation priority (e.g., biodiversity hotspots), setting network internode distance within 100-150 km, along with sizing no-take zones to cover at least 5 km of coast, would help enhance the potential connectivity of Mediterranean subtidal rocky reef assemblages from local to large scale. These results can help improve conservation planning to achieve the goals of promoting ecological connectivity within MPA networks and enhancing their effectiveness in protecting marine communities against rapidly increasing natural and anthropogenic disturbances.
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Affiliation(s)
- Stanislao Bevilacqua
- Department of Life Sciences, University of Trieste, Trieste, Italy
- Consorzio Nazionale Interuniversitario per le Scienze del Mare, Rome, Italy
| | - Ferdinando Boero
- Istituto per lo Studio degli Impatti Antropici e Sostenibilità in Ambiente Marino (CNR-IAS), Consiglio Nazionale delle Ricerche, Genoa, Italy
- Stazione Zoologica Anton Dohrn, Naples, Italy
- Department of Biology, University of Naples Federico II, Naples, Italy
| | - Francesco De Leo
- Istituto di Ricerca sugli Ecosistemi Terrestri (CNR-IRET), Consiglio Nazionale delle Ricerche, Lecce, Italy
| | - Giuseppe Guarnieri
- Agenzia Regionale per la Prevenzione e la Protezione dell'Ambiente, Bari, Italy
| | - Vesna Mačić
- Institute of Marine Biology, University of Montenegro, Kotor, Montenegro
| | - Lisandro Benedetti-Cecchi
- Consorzio Nazionale Interuniversitario per le Scienze del Mare, Rome, Italy
- Department of Biology, University of Pisa, Pisa, Italy
| | - Antonio Terlizzi
- Department of Life Sciences, University of Trieste, Trieste, Italy
- Consorzio Nazionale Interuniversitario per le Scienze del Mare, Rome, Italy
- Stazione Zoologica Anton Dohrn, Naples, Italy
| | - Simonetta Fraschetti
- Consorzio Nazionale Interuniversitario per le Scienze del Mare, Rome, Italy
- Department of Biology, University of Naples Federico II, Naples, Italy
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Castro SA, Rojas P, Vila I, Jaksic FM. Covariation of taxonomic and functional facets of β-diversity in Chilean freshwater fish assemblages: Implications for current and future processes of biotic homogenization. PLoS One 2023; 18:e0281483. [PMID: 36757920 PMCID: PMC9910725 DOI: 10.1371/journal.pone.0281483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2022] [Accepted: 01/24/2023] [Indexed: 02/10/2023] Open
Abstract
The biodiversity of assemblages that experience the introduction and extinction of species may lead to responses in two important facets: The taxonomic and functional diversity. The way in which these facets are associated may reveal important implications and consequences for the conservation of those assemblages. Considering the critical situation of freshwater fishes in continental Chile (30° - 56° S), we analyzed how the taxonomic (TDβ) and functional (FDβ) facets of β-diversity, and their components of turnover and nestedness, are associated. We evaluated changes in β-diversity (ΔTDβ and ΔFDβ), turnover (ΔTDtur and ΔFDtur), and nestedness (ΔTDnes and ΔFDnes) in 20 fish assemblages from their historical (pre-European) to current composition. We also simulated future trends of these changes, assuming that native species with conservation issues would become extinct. Our results show that the fish assemblages studied are in a process of loss of β-diversity, both in taxonomic and functional facets (ΔTDβ = -3.9%; ΔFDβ = -30.4%); also, that these facets are positively correlated in the assemblages studied (r = 0.617; P < 0.05). Both components showed by loss in nestedness (ΔTDnes = -36.9%; ΔFDnes = -60.9%) but gain in turnover (ΔTDtur = 9.2%; ΔFDtur = 12.3%). The functional β-diversity decreased more than the taxonomic (ΔFDβ > ΔTDβ), which was caused chiefly by six exotic species of Salmonidae, whose geographical spread was wider and that at the same time shared several morpho-functional traits. Our forecasts, assuming an intensification in the extinction of Endangered and Vulnerable native species, indicate that the process of homogenization will continue, though at a lower rate. Our study shows that the freshwater ichthyofauna of continental Chile is undergoing biotic homogenization, and that this process involves the facets of taxonomic and functional β-diversity, which are show high correlation between historical and current compositions. Both facets show that process is influenced by nestedness, and while turnover contributes to differentiation (both taxonomic and functional), its importance is overshadowed by nestedness.
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Affiliation(s)
- Sergio A. Castro
- Laboratorio de Ecología y Biodiversidad, Universidad de Santiago de Chile, Santiago, Chile
- * E-mail:
| | - Pablo Rojas
- Laboratorio de Ecología y Biodiversidad, Universidad de Santiago de Chile, Santiago, Chile
- Departamento de Ciencias Ecológicas, Universidad de Chile, Santiago, Chile
| | - Irma Vila
- Departamento de Ciencias Ecológicas, Universidad de Chile, Santiago, Chile
| | - Fabian M. Jaksic
- Center of Applied Ecology and Sustainability (CAPES), Pontificia Universidad Católica de Chile, Santiago, Chile
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Li C, Wang X, Zhang B, Cui P, Feng G, Svenning J. Decomposing multiple β‐diversity reveals non‐random assembly of the waterbird communities across anthropogenic subsidence wetlands. DIVERS DISTRIB 2022. [DOI: 10.1111/ddi.13396] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Affiliation(s)
- Chunlin Li
- School of Resources and Environmental Engineering Anhui University Hefei China
- Anhui Province Key Laboratory of Wetland Ecosystem Protection and Restoration Anhui University Hefei China
| | - Xue Wang
- School of Resources and Environmental Engineering Anhui University Hefei China
| | - Baowei Zhang
- School of Life Sciences Anhui University Hefei China
| | - Peng Cui
- Nanjing Institute of Environmental Sciences Ministry of Ecology and Environment Nanjing China
| | - Gang Feng
- Ministry of Education Key Laboratory of Ecology and Resource Use of the Mongolian Plateau & Inner Mongolia Key Laboratory of Grassland Ecology School of Ecology and Environment Inner Mongolia University Hohhot China
| | - Jens‐Christian Svenning
- Center for Biodiversity Dynamics in a Changing World (BIOCHANGE) and Section for Ecoinformatics and Biodiversity Department of Biology Aarhus University Aarhus C Denmark
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Karkarey R, Arthur R, Nash KL, Pratchett MS, Sankaran M, Graham NA. Spatial decoupling of α and β diversity suggest different management needs for coral reef fish along an extensive mid-oceanic ridge. Glob Ecol Conserv 2022. [DOI: 10.1016/j.gecco.2022.e02110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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10
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Reichard M, Janáč M, Blažek R, Žák J, Alila OD, Polačik M. Patterns and drivers of
Nothobranchius
killifish diversity in lowland Tanzania. Ecol Evol 2022; 12:e8990. [PMID: 35784061 PMCID: PMC9198348 DOI: 10.1002/ece3.8990] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2022] [Revised: 05/16/2022] [Accepted: 05/17/2022] [Indexed: 11/12/2022] Open
Abstract
Temporary pools are seasonal wetland habitats with specifically adapted biota, including annual Nothobranchius killifishes that survive habitat desiccation as diapausing eggs encased in dry sediment. To understand the patterns in the structure of Nothobranchius assemblages and their potential in wetland conservation, we compared biodiversity components (alpha, beta, and gamma) between regions and estimated the role and sources of nestedness and turnover on their diversity. We sampled Nothobranchius assemblages from 127 pools across seven local regions in lowland Eastern Tanzania over 2 years, using dip net and seine nets. We estimated species composition and richness for each pool, and beta and gamma diversity for each region. We decomposed beta diversity into nestedness and turnover components. We tested nestedness in three main regions (Ruvu, Rufiji, and Mbezi) using the number of decreasing fills metric and compared the roles of pool area, isolation, and altitude on nestedness. A total of 15 species formed assemblages containing 1–6 species. Most Nothobranchius species were endemic to one or two adjacent regions. Regional diversity was highest in the Ruvu, Rufiji, and Mbezi regions. Nestedness was significant in Ruvu and Rufiji, with shared core (N. melanospilus, N. eggersi, and N. janpapi) and common (N. ocellatus and N. annectens) species, and distinctive rare species. Nestedness apparently resulted from selective colonization rather than selective extinction, and local species richness was negatively associated with altitude. The Nothobranchius assemblages in the Mbezi region were not nested, and had many endemic species and the highest beta diversity driven by species turnover. Overall, we found unexpected local variation in the sources of beta diversity (nestedness and turnover) within the study area. The Mbezi region contained the highest diversity and many endemic species, apparently due to repeated colonizations of the region rather than local diversification. We suggest that annual killifish can serve as a flagship taxon for small wetland conservation.
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Affiliation(s)
- Martin Reichard
- Institute of Vertebrate Biology Academy of Sciences of the Czech Republic Brno Czech Republic
- Department of Ecology and Vertebrate Zoology University of Łódź Łódź Poland
- Department of Botany and Zoology Faculty of Science Masaryk University Brno Czech Republic
| | - Michal Janáč
- Institute of Vertebrate Biology Academy of Sciences of the Czech Republic Brno Czech Republic
- Department of Botany and Zoology Faculty of Science Masaryk University Brno Czech Republic
| | - Radim Blažek
- Institute of Vertebrate Biology Academy of Sciences of the Czech Republic Brno Czech Republic
- Department of Botany and Zoology Faculty of Science Masaryk University Brno Czech Republic
| | - Jakub Žák
- Institute of Vertebrate Biology Academy of Sciences of the Czech Republic Brno Czech Republic
- Department of Zoology Faculty of Science Charles University Prague Czech Republic
| | - Okinyi David Alila
- Institute of Ecology and Evolution University of Bern Bern Switzerland
- Department of Fish Ecology and Evolution Centre of Ecology, Evolution and Biogeochemistry EAWAG Swiss Federal Institute of Aquatic Science and Technology Kastanienbaum Switzerland
| | - Matej Polačik
- Institute of Vertebrate Biology Academy of Sciences of the Czech Republic Brno Czech Republic
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11
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Sun X, Dong J, Zhang Y, Zhan Q, Ding X, Chen Y, Zhang X. Taxonomic and functional responses of macrofaunal assemblage provide insight into ecological impacts of bottom-based Manila clam aquaculture. MARINE POLLUTION BULLETIN 2022; 174:113270. [PMID: 34971984 DOI: 10.1016/j.marpolbul.2021.113270] [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: 07/02/2021] [Revised: 12/13/2021] [Accepted: 12/14/2021] [Indexed: 06/14/2023]
Abstract
Understanding ecological impacts of bottom-based clam aquaculture can improve its management. In this study, taxonomic and functional macrofaunal assemblage were evaluated for two clam farms located in Laizhou Bay, China. Beta diversity and factors potentially regulating the dissimilarity of macrofauna were estimated. Both taxonomic and functional composition of macrofauna showed large differences between the clam farm and the control area. Functional dissimilarity within the clam farms was found to be nestedness and negatively correlated to local clam abundance. Additionally, the cultured clam enhanced the functional richness but made the macrofaunal assemblage more fragile against species or function loss. This effect would increase with clam abundance, which highlights the importance of identifying optimal clam culture intensity in developing a bottom-based clam aquaculture program.
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Affiliation(s)
- Xin Sun
- The Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao 266003, China
| | - Jianyu Dong
- The Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao 266003, China
| | - Yuyang Zhang
- The Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao 266003, China
| | - Qipeng Zhan
- The Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao 266003, China
| | - Xiayang Ding
- The Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao 266003, China
| | - Yong Chen
- School of Marine and Atmospheric Sciences, Stony Brook University, Stony Brook, NY 11794, USA
| | - Xiumei Zhang
- Fisheries College, Zhejiang Ocean University, Zhoushan 316022, China.
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12
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Coccia C, Almeida BA, Green AJ, Gutiérrez AB, Carbonell JA. Functional diversity of macroinvertebrates as a tool to evaluate wetland restoration. J Appl Ecol 2021. [DOI: 10.1111/1365-2664.14038] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Cristina Coccia
- Department of Wetland Ecology Estación Biológica de Doñana EBD‐CSIC Sevilla Spain
- Bahía Lomas Research Center Universidad Santo Tomás Santiago Chile
| | - Bia A. Almeida
- Department of Wetland Ecology Estación Biológica de Doñana EBD‐CSIC Sevilla Spain
| | - Andy J. Green
- Department of Wetland Ecology Estación Biológica de Doñana EBD‐CSIC Sevilla Spain
| | - Ana Belén Gutiérrez
- Department of Wetland Ecology Estación Biológica de Doñana EBD‐CSIC Sevilla Spain
| | - José Antonio Carbonell
- Department of Wetland Ecology Estación Biológica de Doñana EBD‐CSIC Sevilla Spain
- Department of Zoology Faculty of Biology University of Seville Sevilla Spain
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13
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Bevilacqua S, Airoldi L, Ballesteros E, Benedetti-Cecchi L, Boero F, Bulleri F, Cebrian E, Cerrano C, Claudet J, Colloca F, Coppari M, Di Franco A, Fraschetti S, Garrabou J, Guarnieri G, Guerranti C, Guidetti P, Halpern BS, Katsanevakis S, Mangano MC, Micheli F, Milazzo M, Pusceddu A, Renzi M, Rilov G, Sarà G, Terlizzi A. Mediterranean rocky reefs in the Anthropocene: Present status and future concerns. ADVANCES IN MARINE BIOLOGY 2021; 89:1-51. [PMID: 34583814 DOI: 10.1016/bs.amb.2021.08.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Global change is striking harder and faster in the Mediterranean Sea than elsewhere, where high levels of human pressure and proneness to climate change interact in modifying the structure and disrupting regulative mechanisms of marine ecosystems. Rocky reefs are particularly exposed to such environmental changes with ongoing trends of degradation being impressive. Due to the variety of habitat types and associated marine biodiversity, rocky reefs are critical for the functioning of marine ecosystems, and their decline could profoundly affect the provision of essential goods and services which human populations in coastal areas rely upon. Here, we provide an up-to-date overview of the status of rocky reefs, trends in human-driven changes undermining their integrity, and current and upcoming management and conservation strategies, attempting a projection on what could be the future of this essential component of Mediterranean marine ecosystems.
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Affiliation(s)
- Stanislao Bevilacqua
- Dipartimento di Scienze della Vita, University of Trieste, Trieste, Italy; Consorzio Nazionale Interuniversitario per le Scienze del Mare, Rome, Italy.
| | - Laura Airoldi
- Stazione Idrobiologica di Chioggia "Umberto D'Ancona", Dipartimento di Biologia, University of Padova, Padova, Italy; Dipartimento di Beni Culturali, University of Bologna, Ravenna, Italy
| | | | - Lisandro Benedetti-Cecchi
- Consorzio Nazionale Interuniversitario per le Scienze del Mare, Rome, Italy; Dipartimento di Biologia, University of Pisa, Pisa, Italy
| | - Ferdinando Boero
- Dipartimento di Biologia, University of Napoli Federico II, Napoli, Italy; Stazione Zoologica Anton Dohrn, Naples, Italy; National Research Council, Institute for the Study of Anthropic Impact and Sustainability in the Marine Environment (CNR-IAS), Genoa, Italy
| | - Fabio Bulleri
- Dipartimento di Biologia, University of Pisa, Pisa, Italy
| | - Emma Cebrian
- Centre d'Estudis Avançats de Blanes-CSIC, Girona, Spain
| | - Carlo Cerrano
- Consorzio Nazionale Interuniversitario per le Scienze del Mare, Rome, Italy; Stazione Zoologica Anton Dohrn, Naples, Italy; Dipartimento di Scienze della Vita e dell'Ambiente, Polytechnic University of Marche, Ancona, Italy
| | - Joachim Claudet
- National Center for Scientific Research, PSL Université Paris, CRIOBE, USR 3278 CNRS-EPHE-UPVD, Maison des Océans, Paris, France
| | - Francesco Colloca
- Department of Integrative Ecology, Stazione Zoologica A. Dohrn-National Institute of Marine Biology, Ecology and Biotechnology, Rome, Italy
| | - Martina Coppari
- Dipartimento di Scienze della Vita e dell'Ambiente, Polytechnic University of Marche, Ancona, Italy
| | - Antonio Di Franco
- Department of Integrative Marine Ecology, Stazione Zoologica Anton Dohrn, Sicily, Palermo, Italy
| | - Simonetta Fraschetti
- Consorzio Nazionale Interuniversitario per le Scienze del Mare, Rome, Italy; Dipartimento di Biologia, University of Napoli Federico II, Napoli, Italy; Stazione Zoologica Anton Dohrn, Naples, Italy
| | - Joaquim Garrabou
- Institut de Ciències del Mar, CSIC, Barcelona, Spain; Aix Marseille Univ, Université de Toulon, CNRS, IRD, MIO, Marseille, France
| | - Giuseppe Guarnieri
- Consorzio Nazionale Interuniversitario per le Scienze del Mare, Rome, Italy; Dipartimento di Scienze e Tecnologie Biologiche ed Ambientali, University of Salento, Lecce, Italy
| | | | - Paolo Guidetti
- National Research Council, Institute for the Study of Anthropic Impact and Sustainability in the Marine Environment (CNR-IAS), Genoa, Italy; Department of Integrative Marine Ecology, Stazione Zoologica A. Dohrn-National Institute of Marine Biology, Ecology and Biotechnology, Naples, Italy
| | - Benjamin S Halpern
- National Center for Ecological Analysis & Synthesis, University of California, Santa Barbara, CA, United States; Bren School of Environmental Science and Management, University of California, Santa Barbara, CA, United States
| | | | - Maria Cristina Mangano
- Department of Integrative Marine Ecology, Stazione Zoologica Anton Dohrn, Sicily, Palermo, Italy
| | - Fiorenza Micheli
- Hopkins Marine Station and Center for Ocean Solutions, Stanford University, Pacific Grove, CA, United States
| | - Marco Milazzo
- Consorzio Nazionale Interuniversitario per le Scienze del Mare, Rome, Italy; Consorzio Nazionale Interuniversitario per le Scienze del Mare, Rome, Italy
| | - Antonio Pusceddu
- Dipartimento di Scienze della Vita e dell'Ambiente, University of Cagliari, Cagliari, Italy
| | - Monia Renzi
- Dipartimento di Scienze della Vita, University of Trieste, Trieste, Italy; Consorzio Nazionale Interuniversitario per le Scienze del Mare, Rome, Italy
| | - Gil Rilov
- National Institute of Oceanography, Israel Oceanographic and Limnological Research, Haifa, Israel
| | - Gianluca Sarà
- Dipartimento di Scienze della Terra e del Mare, University of Palermo, Palermo, Italy
| | - Antonio Terlizzi
- Dipartimento di Scienze della Vita, University of Trieste, Trieste, Italy; Consorzio Nazionale Interuniversitario per le Scienze del Mare, Rome, Italy; Stazione Zoologica Anton Dohrn, Naples, Italy
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14
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Beta diversity differs among hydrothermal vent systems: Implications for conservation. PLoS One 2021; 16:e0256637. [PMID: 34437606 PMCID: PMC8389485 DOI: 10.1371/journal.pone.0256637] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Accepted: 08/11/2021] [Indexed: 11/19/2022] Open
Abstract
Deep-sea hydrothermal vent habitats are small, rare and support unique species through chemosynthesis. As this vulnerable ecosystem is increasingly threatened by human activities, management approaches should address biodiversity conservation. Diversity distribution data provide a useful basis for management approaches as patterns of β-diversity (the change in diversity from site to site) can guide conservation decisions. Our question is whether such patterns are similar enough across vent systems to support a conservation strategy that can be deployed regardless of location. We compile macrofaunal species occurrence data for vent systems in three geological settings in the North Pacific: volcanic arc, back-arc and mid-ocean ridge. Recent discoveries in the Mariana region provide the opportunity to characterize diversity at many vent sites. We examine the extent to which diversity distribution patterns differ among the systems by comparing pairwise β-diversity, nestedness and their additive components. A null model approach that tests whether species compositions of each site pair are more or less similar than random provides insight into community assembly processes. We resolve several taxonomic uncertainties and find that the Mariana arc and back-arc share only 8% of species despite their proximity. Species overlap, species replacement and richness differences create different diversity distributions within the three vent systems; the arc system exhibits much greater β-diversity than both the back-arc and mid-ocean ridge systems which, instead, show greater nestedness. The influence of nestedness on β-diversity also increased from the arc to back-arc to ridge. Community assembly processes appear more deterministic in the arc and ridge systems while back-arc site pairs deviate little from the null expectation. These analyses reflect the need for a variety of management strategies that consider the character of diversity distribution to protect hydrothermal vents, especially in the context of mining hydrothermal deposits.
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15
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Wang H, Fu H, Wen Z, Yuan C, Zhang X, Ni L, Cao T. Seasonal patterns of taxonomic and functional beta diversity in submerged macrophytes at a fine scale. Ecol Evol 2021; 11:9827-9836. [PMID: 34306665 PMCID: PMC8293774 DOI: 10.1002/ece3.7811] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Revised: 05/30/2021] [Accepted: 06/04/2021] [Indexed: 11/15/2022] Open
Abstract
Spatiotemporal variation in community composition is of considerable interest in ecology. However, few studies have focused on seasonal variation patterns in taxonomic and functional community composition at the fine scale. As such, we conducted seasonal high-density sampling of the submerged macrophyte community in Hongshan Bay of Erhai Lake in China and used the generalized dissimilarity model (GDM) to evaluate the effects of environmental factors and geographic distance on taxonomic and functional beta diversity as well as corresponding turnover and nestedness components. At the fine scale, taxonomic turnover and nestedness as well as functional turnover and nestedness showed comparable contributions to corresponding taxonomic and functional beta diversity, with different importance across seasons. All taxonomic and functional dissimilarity metrics showed seasonal variation. Of note, taxonomic beta diversity was highest in summer and lowest in winter, while functional beta diversity showed the opposite pattern. Taxonomic and functional turnover showed similar change patterns as taxonomic and functional beta diversity. Taxonomic nestedness was low in summer and high in winter. Functional nestedness was also lower in summer. These results suggest that under extreme environmental conditions, both turnover and nestedness can exist at the fine scale and seasonal community composition patterns in submerged macrophytes should be considered. Future investigations on community assembly mechanisms should pay greater attention to long-term dynamic characteristics and functional information.
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Affiliation(s)
- Hao Wang
- State Key Laboratory of Freshwater Ecology and BiotechnologyInstitute of HydrobiologyChinese Academy of SciencesWuhanChina
- University of Chinese Academy of SciencesBeijingChina
| | - Hui Fu
- Ecology DepartmentCollege of Bioscience & BiotechnologyHunan Provincial Key Laboratory of Rural Ecosystem Health in Dongting Lake AreaHunan Agricultural UniversityChangshaChina
| | - Zihao Wen
- State Key Laboratory of Freshwater Ecology and BiotechnologyInstitute of HydrobiologyChinese Academy of SciencesWuhanChina
- University of Chinese Academy of SciencesBeijingChina
| | - Changbo Yuan
- State Key Laboratory of Freshwater Ecology and BiotechnologyInstitute of HydrobiologyChinese Academy of SciencesWuhanChina
- University of Chinese Academy of SciencesBeijingChina
| | - Xiaolin Zhang
- State Key Laboratory of Freshwater Ecology and BiotechnologyInstitute of HydrobiologyChinese Academy of SciencesWuhanChina
| | - Leyi Ni
- State Key Laboratory of Freshwater Ecology and BiotechnologyInstitute of HydrobiologyChinese Academy of SciencesWuhanChina
| | - Te Cao
- State Key Laboratory of Freshwater Ecology and BiotechnologyInstitute of HydrobiologyChinese Academy of SciencesWuhanChina
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16
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Musthafa MM, Abdullah F, Martínez-Falcón AP, de Bruyn M. How mountains and elevations shape the spatial distribution of beetles in Peninsular Malaysia. Sci Rep 2021; 11:5791. [PMID: 33707515 PMCID: PMC7970977 DOI: 10.1038/s41598-021-84965-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Accepted: 02/15/2021] [Indexed: 11/15/2022] Open
Abstract
This study was conducted to assess the spatial distribution of beetles in mountain ecosystems and their elevational diversity. Malaise, pitfall and light traps were used to collect beetles from nine different mountains in Malaysia from September 2014 to September 2016, where from Gunung Angsi, Gunung Belumut, Gunung Basor and Gunung Tebu samples were collected at 500 m and 1000 m (above sea level) elevations, while beetles were sampled at 500 m, 1000 m and 1500 masl from Gunung Benom, Gunung Inas, Cameron Highland, Gunung Besar Hantu and Gunung Basor. In this study, 9628 beetles belonging to 879 different species were collected with highest representation from family Staphylinidae and Carabidae. Chamah Highland had the highest beetle diversity followed by Gunung Benom, Gunung Inas, Cameron Highland, Gunung Belumut, and Gunung Basor. Chamah Highland was different to all mountains on abundance and species richness. The highest species richness was observed at 1000 m, followed by 500 m and 1500 m. We identified characteristic species associated with habitat conditions at Gunung Benoum and Gunung Inas mountains, according to INDVAL values. The beetle diversity of the sampled mountains showed multiple alpha and beta patterns according to type of mountain ecosystem and elevation, providing guidelines for the scientific community to underpin conservation efforts in Malaysia.
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Affiliation(s)
- Muneeb M Musthafa
- Department of Biosystems Technology, Faculty of Technology, South Eastern University of Sri Lanka, University Park, Oluvil, 32360, Sri Lanka. .,Institute of Biological Science, Faculty of Science, University of Malaya, 50603, Kuala Lumpur, Malaysia.
| | - Fauziah Abdullah
- Institute of Biological Science, Faculty of Science, University of Malaya, 50603, Kuala Lumpur, Malaysia
| | - Ana Paola Martínez-Falcón
- Centro de Investigaciones Biológicas, Instituto de Ciencias Básicas e Ingeniería, Universidad Autónoma del Estado de Hidalgo, Carretera Pachuca-Tulancingo km 4.5, C.P. 42184, Mineral de La Reforma, Hidalgo, Mexico
| | - Mark de Bruyn
- School of Life and Environmental Sciences, The University of Sydney, Camperdown, NSW, 2006, Australia
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17
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Tsianou MA, Touloumis K, Kallimanis AS. Low spatial congruence between temporal functional β‐diversity and temporal taxonomic and phylogenetic β‐diversity in British avifauna. Ecol Res 2021. [DOI: 10.1111/1440-1703.12209] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Affiliation(s)
- Mariana A. Tsianou
- Department of Ecology Aristotle University of Thessaloniki Thessaloniki Greece
| | - Konstantinos Touloumis
- Department of Ecology Aristotle University of Thessaloniki Thessaloniki Greece
- Hellenic Agricultural Organisation Fisheries Research Institute Kavala Greece
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18
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Abstract
We compiled an updated global catalogue of parasites in cephalopods. Data were used to assess changes in taxonomic distinctness of parasites over two centuries and across the world’s oceans, to quantify turnover and nestedness components of parasite β-diversity, and to attempt estimating their γ-diversity at a global scale. A total of 309 parasites infecting 164 cephalopods were found. We hypothesize that this diversity counts for less than half the potential parasite richness in this molluscan taxon. Taxonomic breadth of parasites was significantly above expectations from null models for Mediterranean Sea and NE Atlantic Ocean, whereas the opposite occurred for NW Pacific Ocean, where a few closely related genera characterized the parasite pool. β-diversity of parasites was very high and dominated by turnover, except for the Atlantic Ocean where a nested pattern among sub-basins emerged. Taxonomic relatedness of parasite species remained substantially unchanged through time, but species replacements largely occurred over the last two centuries. Our findings highlighted potential hotspots of taxonomic distinctness in cephalopod parasites, geographic regions deserving future research, and the need for a deeper understanding of the magnitude of marine parasite diversity, their biogeography, and their role in marine ecosystems. Our global overview may represent a baseline step for future advances in this direction.
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