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Chen G, Gu X, Mo Y, Cui B. Monospecific mangrove reforestation changes relationship between benthic mollusc diversity and biomass: Implication for coastal wetland management. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 353:120140. [PMID: 38290263 DOI: 10.1016/j.jenvman.2024.120140] [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: 09/17/2023] [Revised: 11/24/2023] [Accepted: 01/18/2024] [Indexed: 02/01/2024]
Abstract
Anthropogenic causes are overtaking natural factors to reshape patterns of biodiversity and ecosystem functioning. Mangrove reforestation aimed at reversing losses of mangroves has been conducted worldwide for several decades. However, how reforestation influences the link between ecological processes that shape community diversity and the consequent effects on ecosystem functions such as biomass production is less well known. Here we used data collected before and after mangrove planting to examine the effects of reforestation on molluscan species richness and biomass production by testing the changes in species richness, compositional similarities, distance-decay effects (community similarity decreases with increasing geographical distance) in metacommunity across a regional scale of 480 km (23-27 °N) in southeast Chinese coasts. Additionally, we further detected the impact of landscape configuration caused by different intensities of reforestation on the mollusc community. After the mangrove reforestation, mollusc species richness and biomass increased significantly. The increases in species richness and biomass of mollusc community were mediated by reducing distance-decay effect, indicating an increase in relationship strength between species richness and biomass might be associated with a decrease in distance-decay effect with rising mangrove habitat. We highlight the importance of considering the effects of anthropogenic changes on the relationship between biodiversity and ecosystem functioning. Quantifying the distance-decay effect of these influences enables management decisions about coastal restoration to be based upon ecological mechanisms rather than wishful thinking or superficial appearance.
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Affiliation(s)
- Guogui Chen
- State Key Laboratory of Water Environmental Simulation, School of Environment, Beijing Normal University, Beijing, China; Research and Development Center for Watershed Environmental Eco-Engineering, Advanced Institute of Natural Sciences, Beijing Normal University, Zhuhai, China
| | - Xuan Gu
- Key Laboratory of the Coastal and Wetland Ecosystems (Xiamen University) Ministry of Education, College of the Environment & Ecology, Xiamen University, CN-361102, Xiamen, Fujian, China
| | - Yuanyuan Mo
- Aquatic EcoHealth Group, Key Laboratory of Urban Environment and Health, Fujian Key Laboratory of Watershed Ecology, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 361021, China; Key Laboratory of Urban Environment and Health, Ningbo Urban Environment Observation and Research Station, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 361021, China; Zhejiang Key Laboratory of Urban Environmental Processes and Pollution Control, CAS Haixi Industrial Technology Innovation Center in Beilun, Ningbo, 315830, China.
| | - Baoshan Cui
- State Key Laboratory of Water Environmental Simulation, School of Environment, Beijing Normal University, Beijing, China; Research and Development Center for Watershed Environmental Eco-Engineering, Advanced Institute of Natural Sciences, Beijing Normal University, Zhuhai, China.
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Heino J, Alahuhta J, Bini LM, Cai Y, Heiskanen AS, Hellsten S, Kortelainen P, Kotamäki N, Tolonen KT, Vihervaara P, Vilmi A, Angeler DG. Lakes in the era of global change: moving beyond single-lake thinking in maintaining biodiversity and ecosystem services. Biol Rev Camb Philos Soc 2021; 96:89-106. [PMID: 32869448 DOI: 10.1111/brv.12647] [Citation(s) in RCA: 62] [Impact Index Per Article: 20.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Revised: 08/17/2020] [Accepted: 08/19/2020] [Indexed: 12/25/2022]
Abstract
The Anthropocene presents formidable threats to freshwater ecosystems. Lakes are especially vulnerable and important at the same time. They cover only a small area worldwide but harbour high levels of biodiversity and contribute disproportionately to ecosystem services. Lakes differ with respect to their general type (e.g. land-locked, drainage, floodplain and large lakes) and position in the landscape (e.g. highland versus lowland lakes), which contribute to the dynamics of these systems. Lakes should be generally viewed as 'meta-systems', whereby biodiversity is strongly affected by species dispersal, and ecosystem dynamics are contributed by the flow of matter and substances among locations in a broader waterscape context. Lake connectivity in the waterscape and position in the landscape determine the degree to which a lake is prone to invasion by non-native species and accumulation of harmful substances. Highly connected lakes low in the landscape accumulate nutrients and pollutants originating from ecosystems higher in the landscape. The monitoring and restoration of lake biodiversity and ecosystem services should consider the fact that a high degree of dynamism is present at local, regional and global scales. However, local and regional monitoring may be plagued by the unpredictability of ecological phenomena, hindering adaptive management of lakes. Although monitoring data are increasingly becoming available to study responses of lakes to global change, we still lack suitable integration of models for entire waterscapes. Research across disciplinary boundaries is needed to address the challenges that lakes face in the Anthropocene because they may play an increasingly important role in harbouring unique aquatic biota as well as providing ecosystem goods and services in the future.
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Affiliation(s)
- Jani Heino
- Freshwater Centre, Finnish Environment Institute, Latokartanonkaari 11, FI-00790, Helsinki, Finland
| | - Janne Alahuhta
- Geography Research Unit, University of Oulu, P.O. Box 3000, FI-90014, Oulu, Finland
| | - Luis Mauricio Bini
- Departamento de Ecologia, Universidade Federal de Goiás, Goiânia, GO, 74690-900, Brazil
| | - Yongjiu Cai
- Key Laboratory of Watershed Geographic Sciences, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, 73 East Beijing Road, 210008, Nanjing, China
| | - Anna-Stiina Heiskanen
- Freshwater Centre, Finnish Environment Institute, Latokartanonkaari 11, FI-00790, Helsinki, Finland
| | - Seppo Hellsten
- Freshwater Centre, Finnish Environment Institute, Latokartanonkaari 11, FI-00790, Helsinki, Finland
| | - Pirkko Kortelainen
- Freshwater Centre, Finnish Environment Institute, Latokartanonkaari 11, FI-00790, Helsinki, Finland
- Biodiversity Centre, Finnish Environment Institute, Latokartanonkaari 11, FI-00790, Helsinki, Finland
| | - Niina Kotamäki
- Freshwater Centre, Finnish Environment Institute, Latokartanonkaari 11, FI-00790, Helsinki, Finland
| | - Kimmo T Tolonen
- Freshwater Centre, Finnish Environment Institute, Latokartanonkaari 11, FI-00790, Helsinki, Finland
- Department of Biological and Environmental Sciences, University of Jyväskylä, P.O. Box 35, FI-40014, Jyväskylä, Finland
| | - Petteri Vihervaara
- Biodiversity Centre, Finnish Environment Institute, Latokartanonkaari 11, FI-00790, Helsinki, Finland
| | - Annika Vilmi
- Freshwater Centre, Finnish Environment Institute, Latokartanonkaari 11, FI-00790, Helsinki, Finland
| | - David G Angeler
- Department of Aquatic Sciences and Assessment, Swedish University of Agricultural Sciences, Box 7050, 750 07, Uppsala, Sweden
- School of Natural Resources, University of Nebraska-Lincoln, Lincoln, NE, 68583-0984, U.S.A
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Mony C, Vandenkoornhuyse P, Bohannan BJM, Peay K, Leibold MA. A Landscape of Opportunities for Microbial Ecology Research. Front Microbiol 2020; 11:561427. [PMID: 33329422 PMCID: PMC7718007 DOI: 10.3389/fmicb.2020.561427] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Accepted: 10/30/2020] [Indexed: 11/13/2022] Open
Abstract
Microbes encompass tremendous biodiversity, provide support to all living forms, including humans, and play an important role in many ecosystem services. The rules that govern microorganism community assembly are increasingly revealed due to key advances in molecular and analytical methods but their understanding remain a key challenge in microbial ecology. The existence of biogeographic patterns within microbial communities has been established and explained in relation to landscape-scale processes, including selection, drift, dispersal and mutation. The effect of habitat patchiness on microorganisms' assembly rules remains though incompletely understood. Here, we review how landscape ecology principles can be adapted to explore new perspectives on the mechanisms that determine microbial community structure. To provide a general overview, we characterize microbial landscapes, the spatial and temporal scales of the mechanisms that drive microbial assembly and the feedback between microorganisms and landscape structure. We provide evidence for the effects of landscape heterogeneity, landscape fragmentation and landscape dynamics on microbial community structure, and show that predictions made for macro-organisms at least partly also apply to microorganisms. We explain why emerging metacommunity approaches in microbial ecology should include explicit characterization of landscape structure in their development and interpretation. We also explain how biotic interactions, such as competition, prey-predator or mutualist relations may influence the microbial landscape and may be involved in the above-mentioned feedback process. However, we argue that the application of landscape ecology to the microbial world cannot simply involve transposing existing theoretical frameworks. This is due to the particularity of these organisms, in terms of size, generation time, and for some of them, tight interaction with hosts. These characteristics imply dealing with unusual and dependent space and time scales of effect. Evolutionary processes have also a strong importance in microorganisms' response to their landscapes. Lastly, microorganisms' activity and distribution induce feedback effects on the landscape that have to be taken into account. The transposition of the landscape ecology framework to microorganisms provides many challenging research directions for microbial ecology.
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Affiliation(s)
- Cendrine Mony
- UMR CNRS ECOBIO, Université de Rennes, Rennes, France
| | | | | | - Kabir Peay
- Department of Biology, University of Stanford, Stanford, CA, United States
| | - Mathew A Leibold
- Department of Biology, University of Florida, Gainesville, FL, United States
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