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Formation and functions of arbuscular mycorrhizae in coastal wetland ecosystems:A review

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Ecosystem Health and Sustainability 2022年第1期8卷 310-323页

作者： Xing-Qiang Wang Yan-Hong Wang Yao-Bin Song Ming Dong key laboratory of hangzhou city for Ecosystem protection and restoration College of Life and Environmental SciencesHangzhou Normal UniversityHangzhouChina State key laboratory of Subtropical Silviculture Zhejiang A&F UniversityHangzhouChina

Context:Coastal wetlands are ecotones interspaced by land and ocean and are among the most sensitive and vulnerable ecosystems *** are unique in hydrological,edaphic,atmospheric,and biological characteristics,and play important roles in maintaining the ecological security and ecosystem services of coastal *** mycorrhizae(AM)are symbiont composed of plant roots and arbuscular mycorrhizal fungi(AMF),which are soilborne microorganisms widely distributed in various *** previous studies on mycorrhiza have focused on terrestrial ecosystems while few on wetlands,especially coastal ***:We systematically reviewed previous relevant studies to explore the formation and functions of AM in coastal wetland ecosystems as well as the environmental factors that affect *** characteristics,morphological types,and species diversity of AMF in the coastal wetlands were *** responses of AMF to environmental factors during AM formation and the functions of AM in coastal wetlands were ***:AMF are worldwide distributed in coastal wetland and are mainly limited by flooding,hypoxia,soil pH,salinity and the host plants *** play important roles in coastal wetlands,involving promoting nutrient uptake of host plants,improving the characteristics of rhizospheric soil,and enhancing plant resistance to salt and flooding ***:More comprehensive studies of AMF in vitro in coastal wetlands would be helpful for the conservation and restoration of coastal wetland ecosystems in the changing world.

关键词： Arbuscular mycorrhizal fungi coastal wetlands ecological responses ecosystem effects environmental factors

Novel evidence from Taxus fuana forests for niche-neutral process assembling community

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Forest Ecosystems 2022年第3期9卷 378-386页

作者： Tianxiang Li Li Xu Feng Wang Weijun Zhang Junpeng Duan Xiaolu Shen-Tu Yaobin Song Runguo Zang Ming Dong key laboratory of hangzhou city for Ecosystem protection and restoration College of Life and Environmental SciencesHangzhou Normal UniversityHangzhou311121China Institute of Forest Ecology Environment and ProtectionChinese Academy of ForestryBeijing100091China

Background:Understanding the mechanisms underlying community assembly is helpful for conservation and restoration of communities, particularly those that contain rare and endangered species like Taxus fuana, which are endemic to the Western Himalayas. The niche (limiting similarity) vs. neutral (randomness) assembly of the *** forest community in Gyirong County, Tibet, China, was investigated. The net relatedness index (NRI) was calculated using a phylogenetic tree. The phylogenetic characteristics of the community and its relationships with environment were ***:The value of the mean NRI at the community level was less than-1.96, indicating that the phylogenetic structure was overdispersed;whereas majority of the NRIs at the tree, shrub, and herb layers were within-1.96 to1.96, indicating random dispersion. Environmental factors accounted for 44.38%, 46.52%, 24.04%, and 14.07%of the variation at the community level, tree, shrub, and herb layer, respectively. The phylogenetic structure at the community level and tree layer were significantly influenced by both topographic and soil factors, while shrub and herb layers tended to be affected by a single environmental ***:Community assembly of the T. fuana forest was simultaneously affected by niche and neutral processes, and their variations were closely related to the environment. Neutral process dominated community assembly in the shrub and herb layers. However, the interaction of limiting similarity and randomness played a dominant role at the community level and tree layer;and contributed to maintenance of biodiversity stability. The synergy of multiple environmental factors had a more obvious influence on community assembly than individual environmental factors, especially at the community level. These findings would help to understand the conservation of rare and endangered tree species, such as T. fuana, in the native community;and highlight the importance of random and non-random

关键词： Community assembly Environmental factors Limiting similarity Niche-neutral process Phylogenetic structure Randomness Rare and endangered species Taxus fuana

Abundance-weighted plant functional trait variation differs between terrestrial and wetland habitats along wide climatic gradients

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Science China(Life Sciences) 2021年第4期64卷 593-605页

作者： Yu-Kun Hu Guo-Fang Liu Xu Pan Yao-Bin Song Ming Dong Johannes H.C.Cornelissen key laboratory of hangzhou city for eeosystem protection and restoration College of Life and Environmental SciencesHangzhou Normal UniversityHangzhou 311121 China Srate key laboratory of Vegetation and Environmental Change Instiute of BotanyChinese Academy of SciencesBeijing 100093China Beijing key laboratory of Weland Services and restoration Institute of Wetland ResearchChinese Academy of Forestry.Beijing 100091China Systems Ecologv.Department of Ecological Science Vrije Universiteit AmsterdamDe Boelelaan 10851081 HV Amsterdamthe Netherlands

Patterns of plant trait variation across spatial scales are important for understanding ecosystem functioning and ***,habitat-related drivers of these patterns are poorly *** a conceptual model,we ask whether and how the patterns of within-and among-site plant trait variation are driven by habitat type(terrestrial ***)across large climatic *** tested these through spatial-hierarchical-sampling of leaves in herbaceous-dominated terrestrial and wetland communities within each of 26 sites across *** all 13 plant traits,within-site variation was larger than among-site variation in both terrestrial and wetland ***-site variation was similar in most leaf traits related to carbon and nutrient economics but larger in specific leaf area and size-related traits(plant height,leaf area and thickness)in wetland compared to terrestrial ***-site variation was larger in terrestrial than wetland habitats for 10 leaf traits but smaller for plant height,leaf area and leaf *** results indicate the important role of local ecological processes in driving plant trait variation among coexisting species and the dependence of functional variation across habitats on traits *** findings will help to understand and predict the effects of climatic or land-use changes on ecosystem functioning and services.

关键词： community-weighted mean(CWM) functional biogeography functional diversity leaf economic traits size-related traits spatial scale wetlands

Sexual size monomorphism may evolve in lizards with a body size maximizing reproductive performance for both sexes

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Current Zoology 2023年第3期69卷 277-283页

作者： Hong-Liang Lu Jian-Fang Gao Kun Guo Xiang Ji hangzhou key laboratory for Ecosystem protection and restoration School of Life and Environmental SciencesHangzhou Normal UniversityHangzhou 311121ZhejiangChina Zhejiang Provincial key laboratory for Water Environment and Marine Biological Resources protection College of Life and Environmental SciencesWenzhou UniversityWenzhou 325035ZhejiangChina

We used Takydromus septentrionalis,a sexually size-monomorphic lacertid lizard,as a model system to test the hypothesis that sexual size monomorphism may evolve in lizards where reproductive performance is maximized at a similar body size for both *** allowed lizards housed in laboratory enclosures to lay as many clutches(for females)as they could or to mate as many times(for males)as they could in a breeding ***-assortative mating was weak but evident in ***,as revealed by the fact that male and female snout–vent lengths(SVLs)in mating pairs were significantly and positively *** frequency(indicative of male reproductive performance)varied from 1 to 8 per breeding season,generally increasing as SVL increased in adult males smaller than 67.4 mm *** frequency varied from 1 to 7 per breeding season,with female reproductive performance(determined by clutch frequency,annual fecundity,and annual reproductive output)maximized in females with a SVL of 68.0 *** to our hypothesis,the reproductive performance was maximized in the intermediate sized rather than the largest individuals in both sexes,and the body size maximizing reproductive performance was similar for both *** work could usefully investigate other lineages of lizards with sexually monomorphic species in a phylogenetic context to corroborate the hypothesis of this study.

关键词： annual fecundity annual reproductive output clutch frequency mating frequency Takydromus septentrionalis

Developmental and Liver Metabolite Changes Induced by TPhP Exposure in Brown Frog(Rana zhenhaiensis)Tadpoles

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Asian Herpetological Research 2021年第1期12卷 135-142页

作者： Hongliang LU Yingchao HU Changqing XU Wei DANG Zhihua LIN key laboratory of hangzhou city for Ecosystem protection and restoration School of Life and Environmental SciencesHangzhou Nomal UniversityHangzhou 311121.ZhejiangChina Medical School Hangzhou Normal UniversityHangzhou 311121ZhejiangChina College of Ecology Lishui UniversityLishui 323000ZhejiangChina

As an organophosphorus compound that frequently detected in water samples,triphenyl phosphate(TPhP)has been showed to have multiple toxicological effects on aquatic ***,no attention has been paid to its potential impact on non-model amphibian ***,tadpoles of the Zhenhai brown frog(Rana zhenhaiensis)were exposed to different concentrations of TPh P(0,0.02 and 0.1 mg/L)throughout the developmental period to assess physiological and meta bolic impacts of TPh P exposure on amphibian *** 30-day TPh P exposure,the developmental stage of tadpoles from the high-concentration treatment appeared to be more advanced than that from the other two treatments,but other measured traits(including body size,tail length and liver weight)did not differ among *** profiles in tadpole livers based on liquid chromatographymass spectrometry(LC-MS)revealed a distinct metabolic disorder in exposed ***,significant changes in various hepatic amino acids(such as glutamine,glutamate,valine and leucine)were ***,our results indicated that chronic TPhP exposure potentially caused developmental and hepatic physiological changes in *** tadpoles,although its impact on tadpole growth appeared to be minor.

关键词： larval development liver metabolite triphenyl phosphate exposure Zhenhai brown frog

The Mitochondrial Genome of Pseudocalotes microlepis (Squamata: Agamidae) and its Phylogenetic Position in Agamids

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Asian Herpetological Research 2018年第1期9卷 24-34页

作者： Xiuli YU Yu DU Mengchao FANG Hong LI Longhui LIN hangzhou key laboratory for Ecosystem protection and restoration College of Life and Environmental SciencesHangzhou Normal University Jiangsu key laboratory for Biodiversity and Biotechnology College of Life Sciences Nanjing Normal University Hainan key laboratory of Herpetology College of Tropical Biology and Agronomy Hainan Tropical Ocean University

We describe the complete mitochondrial genome of a small-scaled forest agamid （Pseudocalotes microlepis）, which is 17 873 bp in size, containing 13 PCGs, 2 rRNAs, 22 tRNAs and non-coding regions. The mitogenome has a typical gene order among squamates. 13 PCGs include 2 start codons （ATG and ATA）, 3 stop codons （TAG, TAA and AGG）, and an incomplete stop codon （T-）. Codon usage analyses showed that CUA-Leul and CGG-Arg are the most frequently and rarely used codon, respectively. All 22 tRNAs were predicted to form canonical cloverleaf secondary structures, except for two tRNAs （tRNAcys and tRNASer （AGY）） lacking the dihydorouridine （DHU） arm. The large non- coding region （control region） is 2 687 bp long （28.3% T, 18.2% C, 42.3% A, and 11.2% G）, with four different types of repeating sequences. The phylogenetic tree resulting from BEAST analyses based on concatenated 2 rRNAs and 13 PCGs in sequence revealed that the newly sequenced P. microlepis, where the genus Acanthosaura were aggregated. Together with Calotes versicolor, they constitute the subfamily Draconinae.

关键词： mitogenome Pseudocalotes microlepis agamids phylogeny

Global, regional, and cladistic patterns of variation in climatic niche breadths in terrestrial elapid snakes

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Current Zoology 2019年第1期65卷 1-9页

作者： Long-Hui Lin Xia-Ming Zhu Yu Du Meng-Chao Fang Xiang Ji hangzhou key laboratory for Ecosystem protection and restoration College of Life and Environmental SciencesHangzhou Normal University Hangzhou Zhejiang 310036 China Jiangsu key laboratory for Biodiversity and Biotechnology College of Life Sciences Nanjing Normal University Nanjing Jiangsu 210023 China Hainan key laboratory for Herpetology College of Tropical Biology and Agronomy Hainan Tropical Ocean UniversitySanya 572022 China

We obtai ned geo-refere need occurre nee and climatic data from in dividual localities for 59 species of terrestrial elapid snakes, used phylogenetic generalized least squares regression to investigate spatial and cladistic patter ns of variation in climatic niche breadths, and compared patter ns within and across regions and clades to see if they parallel or differ from each other. Specifically, we test (1) whether a species' climatic niche breadth on a given niche axis relates to its position along that axis, and to its climatic niche breadth on another niche axis, and (2) whether variation in niche breadths among species is explained by within-locality variation in climatic conditions or by among-locality variation. We found that:(1) there is an overall global patter n, and patter ns in individual regi ons or clades gen erally parallel each other and global patter ns;(2) species in wanner environments have narrower temperature niche breadths (TNBs);(3) precipitation niche breadth (PNB) and position are positively related;⑷ TNB and PNB are not related;and ⑸ within-locality variation in climatic conditions explains most variation in TNBs, whereas among-locality variation explains most variation in PNBs. Our results are consistent with those reported for lizards of the families Phrynosomatidae and Varanidae, con firm the importance of withi n-locality n iche breadth to species n iche breadth, and show a more im porta nt role of amon g-locality n iche breadth in affecting species niche breadth in terrestrial elapids than in lizards.

关键词： climate Elapidae niche breadth niche position niche variance precipitation temperature

Macroecological Patterns of Climatic Niche Breadth Variation in Lacertid Lizards

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Asian Herpetological Research 2019年第1期10卷 41-47页

作者： Mengchao FANG Xiaming ZHU Yu DU Lin ZHANG Longhui LIN hangzhou key Lab for Ecosystem protection and restoration College of Life and Environmental Sciences Hangzhou Normal University Hainan key Lab for Herpetological Research College of Fisheries and Life Science Hainan Tropical Ocean University

Measuring climatic niche position and breadth may help to determine where species can occur over space and time. Using GIS-based and phylogenetic comparative methods, we investigated global patterns of variation in climatic niche breadth in lacertid lizards to test the following three hypotheses about climatic niche widths. First, does a species' temperature or precipitation niche breadth relate to its temperature or precipitation niche position(the mean value of annual mean temperature or annual precipitation across sampled localities in the range of each species)? Second, are there trade-offs between a species' temperature niche breadth and precipitation niche breadth? Third, does a species' temperature or precipitation niche breadth relate to altitude or latitude? We expect that:(1) species distributed in cold regions are specialized for low-temperature environments(i.e. narrow niche breadth center around low temperatures);(2) a negative relationship between species niche breadth on temperature and precipitation axes according to the tradeoff hypothesis(i.e. species that tolerate a broad range of precipitation regimes cannot also tolerate a broad range of temperatures);(3) precipitation niche breadth decreases with altitude or latitude, whereas temperature climatic niche breadth increases with altitude or latitude. Based on the analytical results we found that:(1) temperature niche breadth and position are negatively related, while precipitation niche breadth and position are positively related;(2) there is no trade-off between temperature and precipitation niche breadths; and (3) temperature niche breadth and latitude/altitude are positively related, but precipitation niche breadth and latitude/altitude are not significantly related. Our results show many similarities with previous studies on climatic niche widths reported for amphibians and lizards, which provide further evidence that such macroecological patterns of variation in climatic niche breadths may be

关键词： Macroecological pattern climatic niche breadth climatic niche position Lacertidae

Lineage diversification and niche evolution in the Reeves’Butterfly Lizard Leiolepis reevesii(Agamidae)

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Integrative Zoology 2021年第3期16卷 404-419页

作者： Xiaming ZHU Lei HUA Mengchao FANG Yu DU Chixian LIN Longhui LIN Xiang JI hangzhou key laboratory for Ecosystem protection and restoration College of Life and Environmental SciencesHangzhou Normal UniversityHangzhouZhejiangChina Jiangsu key laboratory for Biodiversity and Biotechnology College of Life SciencesNanjing Normal UniversityNanjingJiangsuChina Hainan key laboratory of Herpetological Research College of Fisheries and Life SciencesHainan Tropical Ocean UniversitySanyaHainanChina College of Life and Environmental Sciences Wenzhou UniversityWenzhouZhejiangChina

We used mitochondrial cytochrome b and ND4 genes and 9 microsatellite loci to determine genetic diversity,population structure,evolutionary history,and migration patterns within the Reeves’butterfly lizard Leiolepis reevesii(Agamidae).Considering molecular-based phylogeographical lineages,we then performed niche equivalency and similarity tests between divergent *** analyses based on mitochondrial DNA(mtDNA)data revealed 2 lineages(A and B)diverging≈0.84 million years ago and,respectively,restricted to the northern and southern portions of the Wuzhishan and Yinggeling mountain *** B contains individuals from southern Hainan;Lineage A includes individuals from all other localities and can be further divided into 3 clusters according to microsatellite *** null hypothesis that the 2 lineages shared identical niches was rejected in all niche equivalency tests,indicating niche shifts during genetic *** tests provided evidence of niche conservatism,suggesting that the 2 lineages share more characteristics of their niche spaces than randomly *** niche similarity and equivalency tests indicated a complex niche pattern in which both lineages share a main portion of their ecological *** climatic niche of Lineage B represented a marginal and specialized fraction of the entire ecological space of the climatic niche of Lineage A,with warmer *** caused by orogenesis and subsequent niche divergence,together with local adaptation,may have led to genetic differentiation and further lineage sorting in ***.

关键词： genetic structure Leiolepis reevesii niche conservatism niche divergence phylogeography