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Wang J, Li Y, Rahman MM, Li B, Yan Z, Song G, Zhao Y, Wu J, Chu C. Unraveling the drivers and impacts of leaf phenological diversity in a subtropical forest: A fine-scale analysis using PlanetScope CubeSats. THE NEW PHYTOLOGIST 2024; 243:607-619. [PMID: 38764134 DOI: 10.1111/nph.19850] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Accepted: 04/27/2024] [Indexed: 05/21/2024]
Abstract
Leaf phenology variations within plant communities shape community assemblages and influence ecosystem properties and services. However, questions remain regarding quantification, drivers, and productivity impacts of intra-site leaf phenological diversity. With a 50-ha subtropical forest plot in China's Heishiding Provincial Nature Reserve (part of the global ForestGEO network) as a testbed, we gathered a unique dataset combining ground-derived abiotic (topography, soil) and biotic (taxonomic diversity, functional diversity, functional traits) factors. We investigated drivers underlying leaf phenological diversity extracted from high-resolution PlanetScope data, and its influence on aboveground biomass (AGB) using structural equation modeling (SEM). Our results reveal considerable fine-scale leaf phenological diversity across the subtropical forest landscape. This diversity is directly and indirectly influenced by abiotic and biotic factors (e.g. slope, soil, traits, taxonomic diversity; r2 = 0.43). While a notable bivariate relationship between AGB and leaf phenological diversity was identified (r = -0.24, P < 0.05), this relationship did not hold in SEM analysis after considering interactions with other biotic and abiotic factors (P > 0.05). These findings unveil the underlying mechanism regulating intra-site leaf phenological diversity. While leaf phenology is known to be associated with ecosystem properties, our findings confirm that AGB is primarily influenced by functional trait composition and taxonomic diversity rather than leaf phenological diversity.
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Affiliation(s)
- Jing Wang
- School of Ecology, Shenzhen Campus of Sun Yat-sen University, Shenzhen, Guangdong, 518107, China
| | - Yuanzhi Li
- School of Ecology, Shenzhen Campus of Sun Yat-sen University, Shenzhen, Guangdong, 518107, China
| | - Md Mizanur Rahman
- Jiangmen Laboratory of Carbon Science and Technology, The Hong Kong University of Science and Technology, Shenzhen, Guangdong, 529100, China
- Research Area of Ecology and Biodiversity, School for Biological Sciences, The University of Hong Kong, Hong Kong SAR, 999077, China
- JC STEM Lab of Earth Observations, Research Centre for Artificial Intelligence in Geomatics, Department of Land Surveying and Geo-Informatics, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong SAR, 999077, China
| | - Buhang Li
- School of Life Sciences, Sun Yat-sen University, Guangzhou, Guangdong, 510275, China
| | - Zhengbing Yan
- State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences, Xiangshan, Beijing, 100093, China
| | - Guangqin Song
- Research Area of Ecology and Biodiversity, School for Biological Sciences, The University of Hong Kong, Hong Kong SAR, 999077, China
| | - Yingyi Zhao
- Research Area of Ecology and Biodiversity, School for Biological Sciences, The University of Hong Kong, Hong Kong SAR, 999077, China
| | - Jin Wu
- Research Area of Ecology and Biodiversity, School for Biological Sciences, The University of Hong Kong, Hong Kong SAR, 999077, China
| | - Chengjin Chu
- School of Ecology, Shenzhen Campus of Sun Yat-sen University, Shenzhen, Guangdong, 518107, China
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2
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Gong H, Song W, Wang J, Wang X, Ji Y, Zhang X, Gao J. Climate factors affect forest biomass allocation by altering soil nutrient availability and leaf traits. JOURNAL OF INTEGRATIVE PLANT BIOLOGY 2023; 65:2292-2303. [PMID: 37470341 DOI: 10.1111/jipb.13545] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Accepted: 07/19/2023] [Indexed: 07/21/2023]
Abstract
Biomass in forests sequesters substantial amounts of carbon; although the contribution of aboveground biomass has been extensively studied, the contribution of belowground biomass remains understudied. Investigating the forest biomass allocation is crucial for understanding the impacts of global change on carbon allocation and cycling. Moreover, the question of how climate factors affect biomass allocation in natural and planted forests remains unresolved. Here, we addressed this question by collecting data from 384 planted forests and 541 natural forests in China. We evaluated the direct and indirect effects of climate factors on the belowground biomass proportion (BGBP). The average BGBP was 31.09% in natural forests and was significantly higher (38.75%) in planted forests. Furthermore, we observed a significant decrease in BGBP with increasing temperature and precipitation. Climate factors, particularly those affecting soil factors, such as pH, strongly affected the BGBP in natural and planted forests. Based on our results, we propose that future studies should consider the effects of forest type (natural or planted) and soil factors on BGBP.
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Affiliation(s)
- Hede Gong
- School of Geography and Ecotourism, Southwest Forestry University, Kunming, 650224, China
| | - Wenchen Song
- College of Life Sciences, Minzu University of China, Beijing, 100081, China
| | - Jiangfeng Wang
- College of Life Sciences, Xinjiang Normal University, Urumqi, 830054, China
| | - Xianxian Wang
- College of Life Sciences, Xinjiang Normal University, Urumqi, 830054, China
| | - Yuhui Ji
- College of Life Sciences, Xinjiang Normal University, Urumqi, 830054, China
| | - Xinyu Zhang
- College of Biological Sciences, University of California Davis, Davis, 95616, California, USA
| | - Jie Gao
- College of Life Sciences, Xinjiang Normal University, Urumqi, 830054, China
- Key Laboratory of Earth Surface Processes of Ministry of Education, College of Urban and Environmental Sciences, Peking University, Beijing, 100091, China
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3
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Zhao K, Liu D, Chen Y, Feng J, He D, Huang C, Wang Z. Trait-mediated leaf retention of atmospheric particulate matter in fourteen tree species in southern China. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:33609-33623. [PMID: 36484939 DOI: 10.1007/s11356-022-24638-6] [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: 06/03/2022] [Accepted: 12/03/2022] [Indexed: 06/17/2023]
Abstract
Particulate air pollution is a serious threat to human health, especially in urban areas, and trees can act as biological filters and improve air quality. However, studies on greening tree species selection are rare. We measured three particular matter adsorption metrics (PM2.5, PM2.5-10, and PM>10 captured per leaf area) and six functional traits for each of fourteen species and estimated their minimum light requirements based on field surveys. We found that shade-tolerant species captured more coarse particles (PM2.5-10) than light-demanding species. For traits, a strong negative correlation was found between photosynthetic capacity and adsorption capacity for all three PM size fractions, indicating that in comparison to acquisitive species, conservative species captured larger amounts of particles. Moreover, denser wood species and smaller leaves were more efficient in capturing large particles (PM>10), while species with "expensive" leaves (high leaf N or P) were more efficient in capturing fine particles (PM2.5), indicating that capturing large and fine particles was related to mechanical stability traits and leaf surface traits, respectively. Our results demonstrated that the metabolism (e.g., photosynthetic capacity) and chemistry (e.g., leaf N and leaf P) of leaves help explain species capacity to capture PM. We encourage future studies to investigate the ecosystem functions and stress tolerance of tree species with the same framework and trait-based methods.
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Affiliation(s)
- Kangning Zhao
- School of Architecture, University of South China, Hengyang, 421001, China.
| | - Dandan Liu
- School of Architecture, University of South China, Hengyang, 421001, China
| | - Yongfa Chen
- School of Ecology, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Jiayi Feng
- South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510520, China
| | - Dong He
- School of Ecological and Environmental Sciences, East China Normal University, Shanghai, 200062, China
| | - Chunhua Huang
- School of Architecture, University of South China, Hengyang, 421001, China
| | - Zhiyuan Wang
- School of Architecture, University of South China, Hengyang, 421001, China
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4
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Li TX, Shen-Tu XL, Xu L, Zhang WJ, Duan JP, Song YB, Dong M. Intraspecific and sex-dependent variation of leaf traits along altitude gradient in the endangered dioecious tree Taxus fuana Nan Li & R.R. Mill. FRONTIERS IN PLANT SCIENCE 2022; 13:996750. [PMID: 36325570 PMCID: PMC9618961 DOI: 10.3389/fpls.2022.996750] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Accepted: 09/09/2022] [Indexed: 06/16/2023]
Abstract
Plant intraspecific trait variation (ITV) including sex-dependent differences are matters of many ecological consequences, from individual to ecosystem, especially in endangered and rare species. Taxus fuana is an endangered dioecious species with small and isolated populations endemic to the Himalayas region. Little is known about its trait variation between sexes, and among populations. In this study, 18 leaf traits from 179 reproductive trees (males and females) along the altitude (2600-3200m a.s.l.) of the T. fuana populations distributed in Gyirong County, Tibet, China, were measured. ITV and sources of variation in leaf traits were assessed. The relationship between leaf traits of males and females and altitude was analyzed separately. Variations in leaf traits of T. fuana ranged from 3.1% to 24.2%, with the smallest in leaf carbon content and the largest in leaf thickness to area ratio. On average 78.13% of the variation in leaf traits was from within populations and 21.87% among populations. The trends in leaf width, leaf nitrogen to phosphorus ratio, leaf carbon to nitrogen ratio, leaf carbon isotope ratio, and leaf nitrogen isotope ratio in relation to altitude were the same for males and females. Leaf length to width ratio varied significantly with altitude only in males, while leaf phosphorus content, leaf nitrogen content, and leaf carbon to phosphorus ratio varied significantly with altitude only in females. The correlation coefficients of most leaf traits of females with altitude were larger than that of males. In the relationship between leaf traits, there was a high similarity among males and females, but the altitude accounted for more explanation in females than in males. Our results suggested that the variation in leaf traits of T. fuana was small and did not dominate the interspecific competition in the local communities. Adaptation to the altitude gradient of T. fuana might be through altering nutrient storage processes and water use efficiency. Adaptation of male and female T. fuana to environmental changes showed differences, where the males were more tolerant and the females responded greatly to altitude. The differences in adaptation strategies between male and female T. fuana may be detrimental to the maintenance of their populations.
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Affiliation(s)
| | | | | | | | | | | | - Ming Dong
- *Correspondence: Yao-Bin Song, ; Ming Dong,
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Hu Y, Wang H, Jia H, Pen M, Liu N, Wei J, Zhou B. Ecological Niche and Interspecific Association of Plant Communities in Alpine Desertification Grasslands: A Case Study of Qinghai Lake Basin. PLANTS (BASEL, SWITZERLAND) 2022; 11:2724. [PMID: 36297752 PMCID: PMC9609917 DOI: 10.3390/plants11202724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 09/12/2022] [Accepted: 09/22/2022] [Indexed: 06/16/2023]
Abstract
The study of niche and interspecific relationships is one of the classical ecological theories. We set up four desertification gradients. The "Levins" and "Pianka" method were used to calculate the species' niche breadth and niche overlap. Interspecies associations were analyzed by the ratio of variance (VR), Chi-square test, association coefficient (AC) and Ochiai index (OI). The results showed that in grasslands with different degrees of desertification, Stellera chromosome (3.90), Thermopsis lanceolate (3.52) and Aster almanacs (3.99) had larger niche widths, which were wide-area species of plant communities in the desertification area. The ecological niches of the same species in different habitats or different species in the same habitat were multi-dimensional. Niche differentiation measured by niche overlap can occur at any community succession stage. Niche width and niche overlap were not always consistent with environmental changes. Moreover, there was no linear relationship between them. The interspecific connection coefficient fluctuated greatly with the environment. The results can provide a reference for the study of plant community competition mechanism and desertification control in desertification land of the study area. We still do not know the mechanism of how the plants were preserved and how the retained plants adapted to the new environment during the desertification process. We can further study these questions in the next step.
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Affiliation(s)
- Ying Hu
- College of Life Sciences, Qinghai Normal University, Xining 810008, China
| | - Huichun Wang
- College of Life Sciences, Qinghai Normal University, Xining 810008, China
- Key Laboratory of Tibet Plateau Biodiversity Formation Mechanism and Comprehensive Utilization, Xining 810008, China
- Key Laboratory of Medicinal Animal and Plant Resources on the Quinghai–Tibet Plateau, Xining 810008, China
| | - Huiping Jia
- College of Life Sciences, Qinghai Normal University, Xining 810008, China
| | - Maodeji Pen
- College of Life Sciences, Qinghai Normal University, Xining 810008, China
| | - Nian Liu
- College of Life Sciences, Qinghai Normal University, Xining 810008, China
- Key Laboratory of Tibet Plateau Biodiversity Formation Mechanism and Comprehensive Utilization, Xining 810008, China
- Key Laboratory of Medicinal Animal and Plant Resources on the Quinghai–Tibet Plateau, Xining 810008, China
| | - Jingjing Wei
- College of Geographical Sciences, Qinghai Normal University, Xining 810008, China
| | - Biyao Zhou
- College of Life Sciences, Qinghai Normal University, Xining 810008, China
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6
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Momayyezi M, Rippner DA, Duong FV, Raja PV, Brown PJ, Kluepfel DA, Earles JM, Forrestel EJ, Gilbert ME, McElrone AJ. Structural and functional leaf diversity lead to variability in photosynthetic capacity across a range of Juglans regia genotypes. PLANT, CELL & ENVIRONMENT 2022; 45:2351-2365. [PMID: 35642731 PMCID: PMC9543909 DOI: 10.1111/pce.14370] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 05/17/2022] [Accepted: 05/28/2022] [Indexed: 06/15/2023]
Abstract
Similar to other cropping systems, few walnut cultivars are used as scion in commercial production. Germplasm collections can be used to diversify cultivar options and hold potential for improving crop productivity, disease resistance and stress tolerance. In this study, we explored the anatomical and biochemical bases of photosynthetic capacity and response to water stress in 11 Juglans regia accessions in the U.S. department of agriculture, agricultural research service (USDA-ARS) National Clonal Germplasm. Net assimilation rate (An ) differed significantly among accessions and was greater in lower latitudes coincident with higher stomatal and mesophyll conductances, leaf thickness, mesophyll porosity, gas-phase diffusion, leaf nitrogen and lower leaf mass and stomatal density. High CO2 -saturated assimilation rates led to increases in An under diffusional and biochemical limitations. Greater An was found in lower-latitude accessions native to climates with more frost-free days, greater precipitation seasonality and lower temperature seasonality. As expected, water stress consistently impaired photosynthesis with the highest % reductions in lower-latitude accessions (A3, A5 and A9), which had the highest An under well-watered conditions. However, An for A3 and A5 remained among the highest under dehydration. J. regia accessions, which have leaf structural traits and biochemistry that enhance photosynthesis, could be used as commercial scions or breeding parents to enhance productivity.
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Affiliation(s)
- Mina Momayyezi
- Department of Viticulture and EnologyUniversity of CaliforniaDavisCaliforniaUSA
| | | | - Fiona V. Duong
- Department of Viticulture and EnologyUniversity of CaliforniaDavisCaliforniaUSA
| | - Pranav V. Raja
- Department of Viticulture and EnologyUniversity of CaliforniaDavisCaliforniaUSA
| | - Patrick J. Brown
- Department of Plant SciencesUniversity of CaliforniaDavisCaliforniaUSA
| | | | - J. Mason Earles
- Department of Viticulture and EnologyUniversity of CaliforniaDavisCaliforniaUSA
| | | | | | - Andrew J. McElrone
- Department of Viticulture and EnologyUniversity of CaliforniaDavisCaliforniaUSA
- USDA‐ARS, Crops Pathology and Genetics Research UnitDavisCaliforniaUSA
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7
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Zhu C, Wang Z, Luo W, Feng J, Chen Y, He D, Ellwood MDF, Chu C, Li Y. Fungal phylogeny and plant functional traits structure plant–rhizosphere fungi networks in a subtropical forest. OIKOS 2022. [DOI: 10.1111/oik.08992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Chuchao Zhu
- Dept of Bioengineering, Zhuhai Campus of Zunyi Medical Univ. Zhuhai China
- State Key Laboratory of Biocontrol, School of Ecology and School of Life Sciences, Sun Yat‐sen Univ. Guangzhou China
| | - Zihui Wang
- State Key Laboratory of Biocontrol, School of Ecology and School of Life Sciences, Sun Yat‐sen Univ. Guangzhou China
| | - Wenqi Luo
- State Key Laboratory of Biocontrol, School of Ecology and School of Life Sciences, Sun Yat‐sen Univ. Guangzhou China
| | - Jiayi Feng
- State Key Laboratory of Biocontrol, School of Ecology and School of Life Sciences, Sun Yat‐sen Univ. Guangzhou China
| | - Yongfa Chen
- State Key Laboratory of Biocontrol, School of Ecology and School of Life Sciences, Sun Yat‐sen Univ. Guangzhou China
| | - Dong He
- State Key Laboratory of Biocontrol, School of Ecology and School of Life Sciences, Sun Yat‐sen Univ. Guangzhou China
| | | | - Chengjin Chu
- State Key Laboratory of Biocontrol, School of Ecology and School of Life Sciences, Sun Yat‐sen Univ. Guangzhou China
| | - Yuanzhi Li
- State Key Laboratory of Biocontrol, School of Ecology and School of Life Sciences, Sun Yat‐sen Univ. Guangzhou China
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Prada CM, Turner BL, Dalling JW. Growth responses of ectomycorrhizal and arbuscular mycorrhizal seedlings to low soil nitrogen availability in a tropical montane forest. Funct Ecol 2021. [DOI: 10.1111/1365-2435.13901] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Cecilia M. Prada
- Department of Plant Biology University of Illinois Urbana Illinois USA
| | - Benjamin L. Turner
- Soil and Water Science Department University of Florida Gainesville Florida USA
| | - James W. Dalling
- Department of Plant Biology University of Illinois Urbana Illinois USA
- Smithsonian Tropical Research Institute Balboa Republic of Panama
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9
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Jiang M, Yang X, Wang T, Xu Y, Dong K, He L, Liu Y, Wang J, Zhao N, Gao Y. A direct comparison of the effects and mechanisms between species richness and genotype richness in a dominant species on multiple ecosystem functions. Ecol Evol 2021; 11:14125-14134. [PMID: 34707845 PMCID: PMC8525171 DOI: 10.1002/ece3.8125] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Revised: 08/30/2021] [Accepted: 09/01/2021] [Indexed: 11/25/2022] Open
Abstract
Both species (interspecific) richness and genotype (intraspecific) richness of dominant species have significant effects on ecosystem functioning directly or indirectly by regulating plant community functional structure. However, the similarities and differences of the effects between inter- and intraspecific levels are poorly understood. In this study, we selected the main species in the semi-arid Eurasian typical steppe as study objects and simultaneously carried out a species richness experiment and a genotype richness experiment of Stipa grandis which is one of the dominant species in this region. We investigated how plants at each of the two richness levels affected multiple ecosystem functions (biomass, soil C, N and P cycles) directly and indirectly by regulating community functional structure, including community-weighted mean trait values (CWM) and functional dispersion (FDis). Both species richness and genotype richness showed significant direct effects on soil P cycle, and FDis significantly mediated the responses of aboveground biomass and soil N cycle to the changes of species richness and the response of belowground biomass to the changes of genotype richness in S. grandis. CWM showed significant effects on biomass in the species richness experiment and soil nutrient cycles in the genotype richness experiment, independently of the levels of plant richness. These findings provide experimental insights of intraspecific richness effects into the relationships between biodiversity and ecosystem functioning, and highlight the importance of conserving the intraspecific diversity of dominant species in the semi-arid steppe regions.
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Affiliation(s)
- Man Jiang
- Department of Plant Biology and EcologyCollege of Life ScienceNankai UniversityTianjinChina
| | - Xue Yang
- Department of Plant Biology and EcologyCollege of Life ScienceNankai UniversityTianjinChina
| | - Tao Wang
- Department of Plant Biology and EcologyCollege of Life ScienceNankai UniversityTianjinChina
| | - Yujuan Xu
- Department of Plant Biology and EcologyCollege of Life ScienceNankai UniversityTianjinChina
| | - Ke Dong
- Department of Plant Biology and EcologyCollege of Life ScienceNankai UniversityTianjinChina
| | - Luoyang He
- Department of Plant Biology and EcologyCollege of Life ScienceNankai UniversityTianjinChina
| | - Yulin Liu
- Department of Plant Biology and EcologyCollege of Life ScienceNankai UniversityTianjinChina
| | - Jinlong Wang
- College of Agronomy & Resources and EnvironmentTianjin Agricultural UniversityTianjinChina
| | - Nianxi Zhao
- Department of Plant Biology and EcologyCollege of Life ScienceNankai UniversityTianjinChina
| | - Yubao Gao
- Department of Plant Biology and EcologyCollege of Life ScienceNankai UniversityTianjinChina
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10
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Yin D, Liu Y, Ye Q, Cadotte MW, He F. Trait hierarchies are stronger than trait dissimilarities in structuring spatial co-occurrence patterns of common tree species in a subtropical forest. Ecol Evol 2021; 11:7366-7377. [PMID: 34188819 PMCID: PMC8216963 DOI: 10.1002/ece3.7567] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Revised: 03/16/2021] [Accepted: 03/23/2021] [Indexed: 11/11/2022] Open
Abstract
The dissimilarity and hierarchy of trait values that characterize niche and fitness differences, respectively, have been increasingly applied to infer mechanisms driving community assembly and to explain species co-occurrence patterns. Here, we predict that limiting similarity should result in the spatial segregation of functionally similar species, while functionally similar species will be more likely to co-occur either due to environmental filtering or due to competitive exclusion of inferior competitors (hereafter hierarchical competition).We used a fully mapped 50-ha subtropical forest plot in southern China to explore how pairwise spatial associations between saplings and between adult trees were influenced by trait dissimilarity and hierarchy in order to gain insight into assembly mechanisms. We assessed pairwise spatial associations using two summary statistics of spatial point patterns at different spatial scales and compared the effects of trait dissimilarity and trait hierarchy of different functional traits on the interspecific spatial associations. These comparisons allow us to disentangle the effects of limiting similarity, environmental filtering, and hierarchical competition on species co-occurrence.We found that trait dissimilarity was generally negatively related to interspecific spatial associations for both saplings and adult trees across spatial scales, meaning that species with similar trait values were more likely to co-occur and thus supporting environmental filtering or hierarchical competition. We further found that trait hierarchy outweighed trait dissimilarity in structuring pairwise spatial associations, suggesting that hierarchical competition played a more important role in structuring our forest community than environmental filtering across life stages.This study employed a novel method, by offering the integration of pairwise spatial association and trait dissimilarity as well as trait hierarchy, to disentangle the relative importance of multiple assembly mechanisms in structuring co-occurrence patterns, especially the mechanisms of environmental filtering and hierarchical competition, which lead to indistinguishable co-occurrence patterns. This study also reinforced the importance of trait hierarchy rather than trait dissimilarity in driving neighborhood competition.
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Affiliation(s)
- Deyi Yin
- Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, Guangdong Provincial Key Laboratory of Applied BotanySouth China Botanical Garden, Chinese Academy of SciencesGuangzhouChina
- Center for Plant Ecology, Core Botanical GardenChinese Academy of SciencesGuangzhouChina
- Department of Biological SciencesUniversity of Toronto‐ScarboroughTorontoOntarioCanada
| | - Yu Liu
- ECNU‐Alberta Joint Lab for Biodiversity Study, Tiantong Forest Ecosystem National Observation and Research Station, School of Ecology and Environmental SciencesEast China Normal UniversityShanghaiChina
| | - Qing Ye
- Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, Guangdong Provincial Key Laboratory of Applied BotanySouth China Botanical Garden, Chinese Academy of SciencesGuangzhouChina
- Center for Plant Ecology, Core Botanical GardenChinese Academy of SciencesGuangzhouChina
| | - Marc W. Cadotte
- Department of Biological SciencesUniversity of Toronto‐ScarboroughTorontoOntarioCanada
- Ecology and Evolutionary BiologyUniversity of TorontoTorontoOntarioCanada
| | - Fangliang He
- ECNU‐Alberta Joint Lab for Biodiversity Study, Tiantong Forest Ecosystem National Observation and Research Station, School of Ecology and Environmental SciencesEast China Normal UniversityShanghaiChina
- Department of Renewable ResourcesUniversity of AlbertaEdmontonAlbertaCanada
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11
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Tusifujiang Y, Zhang X, Gong L. The relative contribution of intraspecific variation and species turnover to the community-level foliar stoichiometric characteristics in different soil moisture and salinity habitats. PLoS One 2021; 16:e0246672. [PMID: 33596232 PMCID: PMC7888666 DOI: 10.1371/journal.pone.0246672] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2020] [Accepted: 01/24/2021] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Trait-based approaches have been used to demonstrate the responses of plant functional traits to environmental change may manifest both among- and/or within-species. However, how community-level foliar stoichiometric characteristic variations respond to aridity and salinity is still not well-known. METHODS We calculated community weighted means (CWMs) and non-weighted means (CMs) of foliar C, N, and P concentrations (and their ratios) in a dryland plant community respond to high (HSW) and low soil moisture and salinity (LSW). Based on a sum of squares decomposition method, we determined the relative contributions of intraspecific variation and species turnover in both HSW and LSW habitats. RESULTS The CWMs of foliar C, C:N and C:P, and CM of N in the HSW habitat were significantly greater than those in the LSW habitat. The trait variations in two habitats were mainly driven by intraspecific variation, and its contribution to trait variation mostly declined with the decrease of soil moisture and salinity. The CWMs of foliar C-related stoichiometric characteristics were mainly dominated by species turnover in both habitats. Moreover, the contribution of species turnover to C and C:P variations showed an increasing trend in the LSW habitat. For CWMs, negative covariations between intraspecific variation and turnover occurred in HSW and positive covariations (except N:P) occurred in LSW; however, CMs were generally positively correlated in both habitats. CONCLUSIONS The intraspecific variation declined as drought stress intensified, which indicates that the adaptability of desert plants declined when the stress changed from salinity to aridity. The total variation of C-related traits in both habitats were mainly dominated by species turnover. These findings highlight the importance of intraspecific variation in driving desert plant response of community functional composition to salt stress, and the joint role of intraspecific variation and species turnover in resisting drought stress.
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Affiliation(s)
- Yelike Tusifujiang
- College of Resources and Environment Science, Xinjiang University, Urumqi, China.,Xinjiang Key Laboratory of Oasis Ecology, Xinjiang University, Urumqi, China
| | - Xueni Zhang
- College of Resources and Environment Science, Xinjiang University, Urumqi, China.,Xinjiang Key Laboratory of Oasis Ecology, Xinjiang University, Urumqi, China
| | - Lu Gong
- College of Resources and Environment Science, Xinjiang University, Urumqi, China.,Xinjiang Key Laboratory of Oasis Ecology, Xinjiang University, Urumqi, China
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12
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Shen Z, Li Y, Chen Z, Xi N, Luo W, He Q, Liu S, Lin W, Zhu X, Fang S, Wang Y, Li B, Chu C. Species Identity and Initial Size Rather Than Neighborhood Interactions Influence Survival in a Response-Surface Examination of Competition. FRONTIERS IN PLANT SCIENCE 2020; 11:1212. [PMID: 32903341 PMCID: PMC7434863 DOI: 10.3389/fpls.2020.01212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Accepted: 07/24/2020] [Indexed: 06/11/2023]
Abstract
To measure intraspecific and interspecific interaction coefficients among tree species is the key to explore the underlying mechanisms for species coexistence and biodiversity maintenance in forests. Through the response surface experimental design, we established a long-term field experiment by planting 27,300 seedlings of four tree species (Erythrophleum fordii, Pinus massoniana, Castanopsis fissa, and Castanopsis carlesii) in 504 plots in different species combinations (six pairwise combinations of four species), abundance proportions (five abundance proportions of two species, i.e. A: B = 1:0, 3:1, 1:1, 1:3, 0:1), and stand densities (25, 36, 64, and 100 seedlings per plot). In this initial report, we aimed to quantify the relative importance of biotic and abiotic factors on seedling survival at the early stage of growth, which is a critical period for seedling establishment. We found that plot-level seedling survival rate was determined by species combination and their abundance proportion rather than stand density. At the individual level, individual survival probability was mainly explained by species identity, initial seedling size, and soil conditions rather than neighborhood competition. Our study highlights that the seedling intrinsic properties may be the key factors in determining seedling survival rate, while neighborhood effects were not yet prominent at the seedling life stage.
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13
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Carmona CP, Guerrero I, Peco B, Morales MB, Oñate JJ, Pärt T, Tscharntke T, Liira J, Aavik T, Emmerson M, Berendse F, Ceryngier P, Bretagnolle V, Weisser WW, Bengtsson J. Agriculture intensification reduces plant taxonomic and functional diversity across European arable systems. Funct Ecol 2020. [DOI: 10.1111/1365-2435.13608] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Carlos P. Carmona
- Institute of Ecology and Earth Sciences University of Tartu Tartu Estonia
| | - Irene Guerrero
- INEA Agricultural Engineering School Comillas Pontifical University Valladolid Spain
| | - Begoña Peco
- Terrestrial Ecology Group (TEG) Department of Ecology, Research Center on Biodiversity and Global Change Autónoma University of Madrid Madrid Spain
| | - Manuel B. Morales
- Terrestrial Ecology Group (TEG) Department of Ecology, Research Center on Biodiversity and Global Change Autónoma University of Madrid Madrid Spain
| | - Juan J. Oñate
- Terrestrial Ecology Group (TEG) Department of Ecology, Research Center on Biodiversity and Global Change Autónoma University of Madrid Madrid Spain
| | - Tomas Pärt
- Department of Ecology The Swedish University of Agricultural Sciences Uppsala Sweden
| | - Teja Tscharntke
- Agroecology Department of Crop Sciences University of Göttingen Göttingen Germany
| | - Jaan Liira
- Institute of Ecology and Earth Sciences University of Tartu Tartu Estonia
| | - Tsipe Aavik
- Institute of Ecology and Earth Sciences University of Tartu Tartu Estonia
| | - Mark Emmerson
- School of Biological Sciences Institute for Global Food Security Belfast UK
| | - Frank Berendse
- Department of Environmental Sciences Wageningen University Wageningen The Netherlands
| | - Piotr Ceryngier
- Institute of Biological Sciences Cardinal Stefan Wyszyński University Warsaw Poland
| | - Vincent Bretagnolle
- Centre d'Etudes Biologiques de Chizé UMR 7372 CNRS and Université La Rochelle Beauvoir‐sur‐Niort France
- LTSER “Zone Atelier Plaine & Val de Sèvre” CNRS Beauvoir sur Niort France
| | - Wolfgang W. Weisser
- Terrestrial Ecology Research Group Department of Ecology and Ecosystem Management School of Life Sciences Weihenstephan Technische Universität München Freising Germany
| | - Jan Bengtsson
- Department of Ecology Swedish University of Agricultural Sciences Uppsala Sweden
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14
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Carvalho CS, Forester BR, Mitre SK, Alves R, Imperatriz-Fonseca VL, Ramos SJ, Resende-Moreira LC, Siqueira JO, Trevelin LC, Caldeira CF, Gastauer M, Jaffé R. Combining genotype, phenotype, and environmental data to delineate site-adjusted provenance strategies for ecological restoration. Mol Ecol Resour 2020; 21:44-58. [PMID: 32419278 DOI: 10.1111/1755-0998.13191] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Revised: 04/23/2020] [Accepted: 05/11/2020] [Indexed: 12/29/2022]
Abstract
Despite the importance of climate-adjusted provenancing to mitigate the effects of environmental change, climatic considerations alone are insufficient when restoring highly degraded sites. Here we propose a comprehensive landscape genomic approach to assist the restoration of moderately disturbed and highly degraded sites. To illustrate it we employ genomic data sets comprising thousands of single nucleotide polymorphisms from two plant species suitable for the restoration of iron-rich Amazonian Savannas. We first use a subset of neutral loci to assess genetic structure and determine the genetic neighbourhood size. We then identify genotype-phenotype-environment associations, map adaptive genetic variation, and predict adaptive genotypes for restoration sites. Whereas local provenances were found optimal to restore a moderately disturbed site, a mixture of genotypes seemed the most promising strategy to recover a highly degraded mining site. We discuss how our results can help define site-adjusted provenancing strategies, and argue that our methods can be more broadly applied to assist other restoration initiatives.
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Affiliation(s)
- Carolina S Carvalho
- Instituto Tecnológico Vale, Belém, Pará, Brazil.,Departamento de Genética e Evolução, Universidade Federal de São Carlos, São Paulo, São Paulo, Brazil
| | | | | | | | | | | | | | - José O Siqueira
- Instituto Tecnológico Vale, Belém, Pará, Brazil.,Departamento de Ciência do Solo, Universidade Federal de Lavras, Lavras, Minas Gerais, Brazil
| | | | | | | | - Rodolfo Jaffé
- Instituto Tecnológico Vale, Belém, Pará, Brazil.,Departamento de Ecologia, Universidade de São Paulo, São Paulo, São Paulo, Brazil
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15
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Niu K, Zhang S, Lechowicz MJ. Harsh environmental regimes increase the functional significance of intraspecific variation in plant communities. Funct Ecol 2020. [DOI: 10.1111/1365-2435.13582] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Kechang Niu
- Department of Ecology School of Life Sciences Nanjing University Nanjing China
- Department of Ecology & Evolutionary Biology Cornell University Ithaca NY USA
| | - Shiting Zhang
- State Key Laboratory of Grassland and Agro‐Ecosystems School of Life Science Lanzhou University Lanzhou China
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16
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Fazlioglu F, Chen L. Introduced non-native mangroves express better growth performance than co-occurring native mangroves. Sci Rep 2020; 10:3854. [PMID: 32123225 PMCID: PMC7052255 DOI: 10.1038/s41598-020-60454-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Accepted: 02/12/2020] [Indexed: 11/09/2022] Open
Abstract
Mangroves are salt-tolerant woody species occurring in tropical/subtropical coastal habitats. Plantation of fast-growing non-native mangrove species has been used as a tool for mangrove restoration/reforestation in several countries. However, the fast-growth ability can make recently introduced species invasive as they can possibly replace co-occurring native mangroves through expressing higher growth performance and phenotypic plasticity. Therefore, quantifying growth differences between native versus non-native mangrove species is important for forest ecology and management. In this meta-analysis, we compared the growth performance of non-native and native mangrove species pairs by analysing all available results in the literature (33 studies). We found that non-native mangrove species performed better than co-occurring native mangrove species in their introduced regions (Log response ratio = 0.51 ± 0.05) and they also expressed higher trait plasticity. Therefore, these species can be potentially invasive owing to their greater competitive advantage. However, the growth difference was diminished at higher latitudes where native mangrove species seem to perform as well as non-native mangrove species do. This is the first meta-analysis on the growth response of mangroves and it has consequential management implications. We suggest that planting of non-native mangrove species should be avoided and their spread should be monitored.
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Affiliation(s)
- Fatih Fazlioglu
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, College of the Environment and Ecology, Xiamen University, Xiamen, Fujian, 361102, China
- Faculty of Arts and Sciences, Department of Molecular Biology and Genetics, Ordu University, Ordu, 52200, Turkey
| | - Luzhen Chen
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, College of the Environment and Ecology, Xiamen University, Xiamen, Fujian, 361102, China.
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17
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He D, Biswas SR. Negative relationship between interspecies spatial association and trait dissimilarity. OIKOS 2018. [DOI: 10.1111/oik.05876] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Dong He
- School of Ecological and Environmental Sciences, East China Normal Univ CN‐200241 Shanghai China
| | - Shekhar R. Biswas
- Shanghai Key Lab for Urban Ecological Processes and Eco‐Restoration, School of Ecological and Environmental Sciences, East China Normal Univ Shanghai China
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18
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Feng J, Zhao K, He D, Fang S, Lee T, Chu C, He F. Comparing shade tolerance measures of woody forest species. PeerJ 2018; 6:e5736. [PMID: 30324021 PMCID: PMC6183557 DOI: 10.7717/peerj.5736] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Accepted: 09/12/2018] [Indexed: 11/20/2022] Open
Abstract
Shade tolerance, the minimum light requirement for plant survival, is a key trait for understanding community assembly and forest dynamics. However, it is poorly defined for tree species to date. Current methods of measuring shade tolerance vary considerably in their performance. For instance, some measures of shade tolerance are unreliable except under some specific conditions. Therefore, it is necessary to compare the performance of these methods to provide guidance of choosing appropriate shade tolerance measures in future studies. We collected a large dataset of light traits and other life history traits for 137 understory wood species in a subtropical forest and tested the performance of five commonly used shade-tolerance indices. Results showed that all the shade-tolerance measures, except the low-light abundance index, performed poorly in distinguishing and ranking shade tolerance of the tested species. The shade tolerance quantified by the low-light abundance was consistent with empirical classification of shade-tolerance/intolerance groups and successional seral stages of species. Comparison of the shade tolerance between trees of different diameter at breast height (DBH) or height classes further confirmed the reliability of low-light abundance. We conclude that low-light abundance is the most objective and practical of the five most commonly-used methods for measuring and ranking shade tolerance of understory wood species in our study forest, and likely in other forests as well. The simplicity of the method should greatly facilitate the assessment of light niche differentiation between species and thus contribute to understanding coexistence of tree species in forests.
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Affiliation(s)
- Jiayi Feng
- Department of Ecology, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Kangning Zhao
- Department of Ecology, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Dong He
- Tiantong National Station for Forest Ecosystem Research, School of Ecology and Environmental Science, East China Normal University, Shanghai, China
| | - Suqin Fang
- Department of Ecology, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - TienMing Lee
- Department of Ecology, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Chengjin Chu
- Department of Ecology, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Fangliang He
- Tiantong National Station for Forest Ecosystem Research, School of Ecology and Environmental Science, East China Normal University, Shanghai, China
- Department of Renewable Resources, University of Alberta, Edmonton, AB, Canada
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