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Aboveground biomass stocks of species-rich natural forests in southern China are influenced by stand structural attributes,species richness and precipitation

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Plant Diversity 2024年第4期46卷 530-536页

作者： Wen-Hao Zeng Shi-Dan Zhu Ying-Hua Luo Wei Shi Yong-Qiang Wang Kun-Fang Cao State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources College of ForestryGuangxi UniversityNanning 530004China Guangxi Key Laboratory of Forest Ecology and Conservation College of ForestryGuangxi UniversityNanning 530004China Key Laboratory of National Forestry and Grassland Administration on biodiversity Conservation in Karst Mountainous Areas of Southwestern China School of Life SciencesGuizhou Normal UniversityHuaxi College TownGui'an DistrictGuiyang 550025China

Forests,the largest terrestrial carbon sinks,play an important role in carbon sequestration and climate change *** forest attributes and environmental factors have been shown to impact aboveground biomass,their influence on biomass stocks in species-rich forests in southern China,a biodiversity hotspot,has rarely been *** this study,we characterized the effects of environmental factors,forest structure,and species diversity on aboveground biomass stocks of 30 plots(1 ha each) in natural forests located within seven nature reserves distributed across subtropical and marginal tropical zones in Guangxi,*** results indicate that forest aboveground biomass stocks in this region are lower than those in mature tropical and subtropical forests in other ***,we found that aboveground biomass was positively correlated with stand age,mean annual precipitation,elevation,structural attributes and species richness,although not with species *** we compared stands with the same basal area,we found that aboveground biomass stock was higher in communities with a higher coefficient of variation of diameter at breast *** findings highlight the importance of maintaining forest structural diversity and species richness to promote aboveground biomass accumulation and reveal the potential impacts of precipitation changes resulting from climate warming on the ecosystem services of subtropical and northern tropical forests in ***,many natural forests in southern China are not fully ***,their continued growth will increase their carbon storage over time.

关键词： Subtropical forest Marginal tropical forest Aboveground biomass Species diversity Forest structural attribute Environment factor

Potential and progress of studying mountain biodiversity by means of butterfly genetics and genomics

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Journal of Genetics and Genomics 2024年第3期51卷 292-301页

作者： Shuting Wang Marco Girardello Wei Zhang State Key Laboratory of Protein and Plant Gene Research School of Life SciencesPeking UniversityBeijing 100871China Peking-Tsinghua Center for Life Sciences Academy for Advanced Interdisciplinary StudiesPeking UniversityBeijing 100871China cE3c-Centre for Ecology Evolution and Environmental Changes/Azorean Biodiversity GroupFaculdade de Ciencias Agrarias e do AmbienteUniversidade dos Açores9700-042 Angra do HeroísmoTerceiraPortugal

Mountains are rich in biodiversity,and butterflies are species-rich and have a good ecological and evolutionary research *** review addresses the potential and progress of studying mountain biodiversity using butterflies as a *** discuss the uniqueness of mountain ecosystems,factors influencing the distribution of mountain butterflies,representative genetic and evolutionary models in butterfly research,and evolutionary studies of mountain biodiversity involving butterfly genetics and ***,we demonstrate the necessity of studying mountain butterflies and propose future *** review provides insights for studying the biodiversity of mountain butterflies as well as a summary of research methods for reference.

关键词： Mountain ecosystem Butterfly biodiversity Adaptation Genomics Genetics

Variability of urban fractional vegetation cover and its driving factors in 328 cities in China

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Science China Earth Sciences 2024年第2期67卷 466-482页

作者： Fei FENG Xin YANG Baoquan JIA Xiaoting LI Xianwen LI Chengyang XU Kaicun WANG Research Centre of Urban Forestry Key Laboratory for Silviculture and Forest Ecosystem of State Forestry and Grassland AdministrationBeijing Forestry UniversityBeijing100083China State Key Laboratory of Earth Surface Processes and Resource Ecology Beijing Normal UniversityBeijing100875China Research Institute of Forestry Chinese Academy of ForestryBeijing100091China School of Architecture Tsinghua UniversityBeijing100084China College of Urban and Environmental Sciences Sino-French Institute for Earth System ScienceInstitute of Carbon NeutralityPeking UniversityBeijing100871China

Urban green space promotes the health of urban residents,enhances urban ecosystem biodiversity,mitigates environmental pollution,and attenuates urban heat island ***,urban vegetation cover is highly heterogeneous and difficult to *** this study,the variation of urban fractional vegetation cover(FVC)in 328 cities in China from 1990 to2022 was quantified based on Landsat satellite data at a 30-m *** was found that from 1990 to 2005,due to increases in building density and impervious surfaces in cities,the national mean urban vegetation cover decreased from 0.38 to ***2005,urban vegetation cover began to reverse,reaching 0.45 in *** increasing trend was most pronounced in newly built urban *** decrease in average urban vegetation cover before 2005 was mainly due to the expansion of low vegetation cover areas,while the increase in urban vegetation cover after 2005 manifested as the expansion of high vegetation cover *** reversal in the trend of urban vegetation cover change after 2004 is related to the gradual implementation of national policies requiring increased urban green space *** urban gross domestic product(GDP)showed the highest correlation with changes in urban vegetation *** large and medium-sized cities,the top three factors influencing vegetation cover were GDP,urban population,and ***,for cities in arid/semi-arid regions,changes in vegetation cover were more sensitive to climatic factors(such as precipitation).Although the urban vegetation cover in China has substantially increased in recent years,the urban green space in small-sized cities and in the old urban districts of large-sized cities still have room to improve.

关键词： Urban vegetation Urban vegetation cover Urbanization Remote sensing

Taxonomy on crane flies in family Tipulidae and Limoniidae(Diptera: Tipuloidea) from Yaoluoping National Nature Reserve, Anhui, China

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Zoological Systematics 2017年第4期42卷 476-489页

作者： Qiulei Men Zhiyong Lu Pingping Sheng Xiang Gui Zhizhong Wang Dan Mu School of Life Sciences Province Key Laboratory of the Biodiversity Study and Ecology Conservation in Southwest AnhuiResearch Centre of Aquatic Organism conservation and Water Ecosystem Restoration in AnhuiAnqing Normal University

The paper reports 13 species from Yaoluoping National Nature Reserve, Anhui, China, including a new species and a new subspecies, Tipula（Emodotipula） alexanderi Men, sp. nov. and Nephrotoma impigra anqingensis Men, subsp. nov. The female of Libnotes（Libnotes） pseudonohirai Men, 2015 is described and illustrated for the first time. The males of Holorusia henana Yang, 1999 and Tipula（Vestiplex） jiangi Yang ＆ Yang, 1991 are redescribed and illustrated with new morphological characters. A key to all species is provided.

关键词： Tipuloidea Limoniidae Emodotipula Nephrotoma new species

Selective Extraction Methods for Aluminium,Iron and Organic Carbon from Montane Volcanic Ash Soils

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Pedosphere 2011年第5期21卷 549-565页

作者： B.JANSEN F.H.TONNEIJCK J.M.VERSTRATEN Earth Surface Science Research Group Institute for Biodiversity and Ecosystem DynamicsUniversity of Amsterdam IUCN National Committee of the Netherlands Plantage Middenlaan 2C

Montane volcanic ash soils contain disproportionate amounts of soil organic carbon and thereby play an often underestimated role in the global carbon *** the central role of Al and Fe in stabilizing organic matter in volcanic ash soils,we assessed various extraction methods of Al,Fe,and C fractions from montane volcanic ash soils in northern Ecuador,aiming at elucidating the role of Al and Fe in stabilizing soil organic matter(SOM).We found extractions with cold sodium hydroxide,ammonium oxalate/oxalic acid,sodium pyrophosphate,and sodium tetraborate to be particularly *** of these methods yielded information about the role of the mineral phase in stabilizing organic matter and the differences in type and degree of complexation of organic matter with Al and Fe in the various horizons and soil *** tetraborate extraction proved the only soft extraction method that yielded simultaneous information about the Al,Fe,and C fractions *** also appeared to differentiate between SOM fractions of different *** fractions of copper chloride-and potassium chloride-extractable Al were useful in assessing the total reactive and toxic Al fractions,*** classical subdivision of organic matter into humic acids,fulvic acids,and humin added little useful *** use of fulvic acids as a proxy for mobile organic matter as done in several model-based approaches seems invalid in the soils studied.

关键词： complexation global carbon cycle soft extraction method soil organic matter

Characterisation of the Bacteria and Archaea Community Associated with Wild Oysters, At Three Possible Restoration Sites in the North Sea

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Open Journal of Marine Science 2024年第2期14卷 19-40页

作者： Natacha M. S. Juste-Poinapen Yang Lu Blanca Bolaños De Hoyos George C. Birch Camille Saurel Oyster Heaven Rotterdam Netherlands Nucleus Rotterdam Netherlands Microbial Ecology and Wastewater Microbiology Queensland University of Technology Brisbane Australia National Institute of aquatic Resources Technical University of Denmark Lyngby Denmark

With 85% of the global oyster reefs destroyed, there is an urgent need for large scale restoration to benefit from the ecosystem services provided by biogenic oyster reefs and their associated biodiversity, including microorganisms that drive marine biogeochemical cycles. This experiment established a baseline for the monitoring of the bacterial and archaeal community associated with wild oysters, using samples from their immediate environment of the Voordelta, with cohabiting Crassostrea gigas and Ostrea edulis, Duikplaats with only C. gigas attached to rocks, and the Dansk Skaldyrcentre, with no onsite oysters. The microbial profiling was carried out through DNA analysis of samples collected from the surfaces of oyster shells and their substrate, the sediment and seawater. Following 16S rRNA amplicon sequencing and bioinformatics, alpha indices implied high species abundance and diversity in sediment but low abundance in seawater. As expected, Proteobacteria, Bacteroidetes, Firmicutes and Thaumarchaeota dominated the top 20 OTUs. In the Voordelta, OTUs related to Colwellia, Shewanella and Psychrobium differentiated the oysters collected from a reef with those attached to rocks. Duikplaats were distinct for sulfur-oxidizers Sulfurimonas and sulfate-reducers from the Sva 0081 sediment group. Archaea were found mainly in sediments and the oyster associated microbiome, with greater abundance at the reef site, consisting mostly of Thaumarchaeota from the family Nitrosopumilaceae. The oyster free site displayed archaea in sediments only, and algal bloom indicator microorganisms from the Rhodobacteraceae, Flavobacteriaceae family and genus [Polaribacter] huanghezhanensis, in addition to the ascidian symbiotic partner, Synechococcus. This study suggests site specific microbiome shifts, influenced by the presence of oysters and the type of substrate.

关键词： Oyster Reefs Microbiome Marine Bacteria Marine Archaea Restoration

Consistency in responses to conspecific advertisement calls with various signal-to-noise ratios in both sexes of the Anhui tree frog

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Current Zoology 2023年第6期69卷 718-726页

作者： Zhiyue Wang Haohao Ma Cheng Chen Ruolei Sun Kai Liu Baowei Zhang Guangzhan Fang School of LifeScience Anhui UniversityHefei230601China Thematic Area of biodiversity and ecosystem Services Chengdu Institute of BiologyChinese Academy of SciencesChengdu 610041China

Environmental noise has a significant negative impact on acoustic communication in most situations,as it influences the production,transmis-sion,and reception of acoustic ***,how animals respond to conspecific sounds when there is interference from environmental noise,and whether males and females display convergent behavioral responses in the face of noise masking remain poorly *** this study,we investigated the effects of conspecific male advertisement calls with different signal-to-noise ratios on male-male competition and female choice in the Anhui tree frog Rhacophorus zhoukaiyae using playback and phonotaxis experiments,*** results showed that(1)female Anhui tree frogs preferentially selected the conspecific calls with higher SNR compared to calls with lower SNR;(2)males preferen-tially responded vocally to the conspecific calls with higher SNR compared to calls with lower SNR;and(3)males'competitive strategies were flexible in the face of noise *** results suggest that preferences of both sexes converge in outcome,and that male competitive strategies may depend on predictable female *** study will provide an important basis for further research on decision-making in animals.

关键词： advertisement call female choice male-male competition noise signal-to-noise ratio(SNR)

Convergent adaptation of the genomes of woody plants at the land–sea interface

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National Science Review 2020年第6期7卷 978-993页

作者： Ziwen He Shaohua Xu Zhang Zhang Wuxia Guo Haomin Lyu Cairong Zhong David E.Boufford Norman C.Duke The International Mangrove Consortium Suhua Shi State Key Laboratory of Biocontrol Guangdong Provincial Key Laboratory of Plant Resources Key Laboratory of Biodiversity Dynamics and Conservation of Guangdong Higher Education Institutes School of Life Sciences Sun Yat-Sen University Hainan Dongzhai Harbor National Nature Reserve Administration Harvard University Herbaria Centre for Tropical Water and aquatic ecosystem Research James Cook University the Consortium of 26 Institutions

Sequencing multiple species that share the same ecological niche may be a new frontier for genomic *** such studies should shed light on molecular convergence, genomic-level analyses have been unsuccessful, due mainly to the absence of empirical controls. Woody plant species that colonized the global tropical coasts, collectively referred to as mangroves, are ideal for convergence studies. Here, we sequenced the genomes/transcriptomes of 16 species belonging in three major mangrove clades. To detect convergence in a large phylogeny, a CCS+ model is implemented, extending the more limited CCS method(convergence at conservative sites). Using the empirical control for reference, the CCS+ model reduces the noises drastically, thus permitting the identification of 73 convergent genes with Ptrue(probability of true convergence) > 0.9. Products of the convergent genes tend to be on the plasma membrane associated with salinity tolerance. Importantly, convergence is more often manifested at a higher level than at amino-acid(AA) sites. Relative to >50 plant species, mangroves strongly prefer 4 AAs and avoid 5 others across the genome. AA substitutions between mangrove species strongly reflect these tendencies. In conclusion, the selection of taxa, the number of species and, in particular, the empirical control are all crucial for detecting genome-wide convergence. We believe this large study of mangroves is the first successful attempt at detecting genome-wide site convergence.

关键词： convergent evolution genome mangrove adaptive evolution woody plants

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发展综合地理学,支撑共同体理念

Science Bulletin 2024年第6期69卷 727-731页

作者：彭建刘学邦顾恬玮傅伯杰 Technology Innovation Center for Integrated ecosystem Restoration and Sustainable Utilization Ministry of Natural ResourcesCollege of Urban and Environmental SciencesPeking UniversityBeijing 100871China State Key Laboratory of Urban and Regional Ecology Research Center for Eco-Environmental SciencesChinese Academy of SciencesBeijing 100085China

Human history has gone through three stages of development,including primitive civilization,agricultural civilization,and industrial *** productivity and production tools improve by leaps and bounds,material conditions and social relations have undergone great changes,which have also brought a series of global problems such as resource shortage,climate change,ecosystem degradation and the sharp decline in biodiversity[1].

关键词： civilization sharp bounds