78 Works

Data from: Global signal of top-down control of terrestrial plant communities by herbivores

Shihong Jia, Xugao Wang, Zuoqiang Yuan, Fei Lin, Ji Ye, Zhanqing Hao & Matthew Scott Luskin
The theory of “top-down” ecological regulation predicts that herbivory suppresses plant abundance, biomass, and survival but increases diversity through the disproportionate consumption of dominant species, which inhibits competitive exclusion. To date, these outcomes have been clear in aquatic ecosystems but not on land. We explicate this discrepancy using a meta-analysis of experimental results from 123 native animal exclusions in natural terrestrial ecosystems (623 pairwise comparisons). Consistent with top-down predictions, we found that herbivores significantly reduced...

Data from: 5′-(CGA)n sequence-assisted pH-controlled assembly of supramolecular DNA nanostructure

Yuting Yan, Yanwei Cao, Chunsheng Xiao, Yang Li, Xiaoxuan Xiang & Xinhua Guo
Herein, the DNA strands containing 5'-(CGA)n and consecutive guanines are used to construct supramolecular DNA nanostructures that are size-controlled by pH values. Additionally, the introduction of thymine linkers within DNA nanostructures is necessary to maintain the stability of long sized nanostructures. This work also demonstrates a method for accurately building DNA nanostructures.

Data from: Livestock grazing regulates ecosystem multifunctionality in semi‐arid grassland

Haiyan Ren, Valerie T. Eviner, Weiyang Gui, Gail W.T. Wilson, Adam B. Cobb, Gaowen Yang, Yingjun Zhang, Shuijin Hu, Yongfei Bai & Gail W. T. Wilson
1. Ecological theories and experimental evidence indicate that human activity induced losses in biodiversity can have substantial impacts on multiple ecosystem functions. It remains unclear, however, how grazing affects grassland biodiversity and ecosystem multifunctionallity (EMF). 2. Here, we assessed the grazing effects on different dimensions of biodiversity (i.e. plants and soil microbes) and EMF based on a 11-year field experiment in a semi-arid grassland. 3. We found that soil organic C, available nitrogen, and plant...

Data from: Multiple facets of stream macroinvertebrate alpha diversity are driven by different ecological factors across an extensive altitudinal gradient

Zhengfei Li, Xiaoming Jiang, Jun Wang, Xingliang Meng, Jani Heino & Zhicai Xie
Environmental filtering and spatial structuring are important ecological processes for the generation and maintenance of biodiversity. However, the relative importance of these ecological drivers for multiple facets of diversity is still poorly understood in highland streams. Here, we examined the responses of three facets of stream macroinvertebrate alpha diversity to local environmental, landscape-climate and spatial factors in a near-pristine highland riverine ecosystem. Taxonomic (species richness, Shannon diversity and evenness), functional (functional richness, evenness, divergence and...

Data from: Species richness and phylogenetic diversity of seed plants across vegetation zones of Mount Kenya, East Africa

Yadong Zhou, Sichong Chen, Guangwan Hu, Geoffrey Mwachala, Xue Yan, Qing-Feng Wang & Qingfeng Wang
Mount Kenya is of ecological importance in tropical east Africa due to the dramatic gradient in vegetation types that can be observed from low to high elevation zones. However, species richness and phylogenetic diversity of this mountain have not been well studied. Here, we surveyed distribution patterns for a total of 1,335 seed plants of this mountain and calculated species richness and phylogenetic diversity across seven vegetation zones. We also measured phylogenetic structure using the...

Data from: Nonlinear response of ecosystem respiration to multiple levels of temperature increases

Ning Chen, Juntao Zhu, Yangjian Zhang, Yaojie Liu, Junxiang Li, Jiaxing Zu & Ke Huang
Global warming exerts profound impacts on terrestrial carbon cycles and feedback to climates. Ecosystem respiration (ER) is one of the main components of biosphere CO2 fluxes. However, knowledge regarding how ER responds to warming is still lacking. In this study, a manipulative experiment with five simulated temperature increases (Control, Warming 1, Warming 2, Warming 3, Warming 4) was conducted to investigate ER responses to warming in an alpine meadow on the Tibetan Plateau. The results...

Data from: Chemically-mediated sexual signals restrict hybrid speciation in a flea beetle

Huai-Jun Xue, Kari A. Segraves, Jing Wei, Bin Zhang, Rui-E Nie, Wen-Zhu Li & Xing-Ke Yang
The evolution of reproductive isolation following hybridization is a major obstacle that may limit the prevalence of hybrid speciation among specific groups of organisms. Here we use a flea beetle system to offer a behavioral hypothesis for why there are so few examples of homoploid hybrid speciation among insects. Specifically, we examined cuticular hydrocarbon (CHC) mating signals and mate choice decisions of Altica fragariae and A. viridicyanea to test whether the signals produced by hybrids...

Data from: Reticulate evolution within a spruce (Picea) species complex revealed by population genomic analysis

Yongshuai Sun, Richard J. Abbott, Zhiqiang Lu, Kangshan Mao, Lei Zhang, Xiaojuan Wang, Dafu Ru & Jianquan Liu
The role of reticulation in the rapid diversification of organisms is attracting greater attention in evolutionary biology. Here, we report a population genomics approach to test the role of hybridization and introgression in the evolution of the Picea likiangensis species complex. Based on 84,793 SNPs detected in transcriptomes of 82 trees collected from 35 localities, we identified 18 hybrids (including backcrosses) distributed within the range boundaries of the four taxa. Coalescent simulations, for each pair...

Data from: Association of in utero persistent organic pollutant exposure with placental thyroid hormones

Zhong-Min Li, David Hernandez-Moreno, Katharina Maria Main, Niels Erik Skakkebæk, Hannu Kiviranta, Jorma Toppari, Ulla Feldt-Rasmussen, Heqing Shen, Karl-Werner Schramm & Meri De Angelis
In utero exposure to persistent organic pollutants (POPs) can result in thyroid function disorder, leading to concerns about their impact on fetal and neonatal development. The present study was performed to investigate the associations between placental levels of various POPs and thyroid hormones (THs). In a prospective Danish study initially established for assessing congenital cryptorchidism, 58 placenta samples were collected from mothers of boys born with (28) and without (30) cryptorchidism. The concentrations of polybrominated...

Data from: Dryland soils in northern China sequester carbon during the early-2000s warming hiatus period

Dan Kou, Wenhong Ma, Jinzhi Ding, Beibei Zhang, Kai Fang, Huifeng Hu, Jianchun Yu, Tian Wang, Shuqi Qin, Xia Zhao, Jingyun Fang & Yuanhe Yang
1. Drylands, covering ~45% of the Earth’s terrestrial surface and supporting ~38% of the global population, play a dominant role in the trend and inter-annual variability of global land carbon (C) sink. Given that a large proportion of organic C is stored in soils, our knowledge on soil C dynamics in drylands is crucial to evaluate terrestrial C-climate feedback. However, credible understanding on this issue is still greatly limited by the lack of direct observations....

Data from: Chronic nitrogen addition induces a cascade of plant community responses with both seasonal and progressive dynamics

Xiaobing Zhou, Matthew Bowker, Ye Tao, Lin Wu, Yuanming Zhang & Matthew A. Bowker
Short-lived herbaceous plants provide a useful model to rapidly reveal how multiple generations of plants in natural plant communities of sensitive desert ecosystems will be affected by N deposition. We monitored dynamic responses of community structure, richness, evenness, density and biomass of herbaceous plants to experimental N addition (2:1 NH4+:NO3− added at 0, 0.5, 1, 3, 6 and 24 g N m− 2 a− 1) in three seasons in each of three years in the...

Data from: Abundance of small mammals correlates with their elevational range sizes and elevational distributions in the subtropics

Zhixin Wen, Yongjie Wu, Jilong Cheng, Tianlong Cai, Yuanbao Du, Deyan Ge, Lin Xia & Qisen Yang
The idea that a positive abundance-range size relationship (ARR) is pervasive in nature has been challenged by recent studies focused on montane and island vertebrate assemblages. However, because some of these studies used species’ local abundance and regional or global range size in examining the ARRs, the negative and neutral trends reported are questionable. Here, by relating species’ mean abundance along elevational gradients to elevational range size, we examined the ARRs of non-flying small mammals...

Data from: The early record of halysitid tabulate corals, and morphometrics of Catenipora from the Ordovician of north-central China

Kun Liang, Robert J. Elias & Dong-Jin Lee
Catenipora is one of the most common tabulate coral genera in the Upper Ordovician Jinghe and Beiguoshan formations on the southern margin of the Ordos Basin, north-central China. We distinguish and identify the species of Catenipora using multivariate morphometric procedures. Cluster analysis based on morphological characters of coralla yields a dendrogram showing five morphospecies. The validity and distinctiveness of the morphospecies are evaluated by discriminant analysis and non-metric multidimensional scaling. To identify the species represented...

Data from: Using functional trait diversity patterns to disentangle the scale-dependent ecological processes in a subtropical forest

Hui Zhang, Han Y.H. Chen, Juyu Lian, Robert John, Ronghua Li, Hui Liu, Wanhui Ye, Frank Berninger, Qing Ye & Li Ronghua
1. Disentangling ecological processes that influence community assembly and species diversity across spatial scales remains a major goal of community ecology. Community assembly processes influence spatial patterns of species diversity through their interactions with key functional traits. Hence, quantifying spatial patterns of functional trait diversity (FD) represents a useful tool for disentangling the relative importance of abiotic filtering, biotic interactions, random assembly, and dispersal limitation across spatial scales. 2. Here we measured 12 traits of...

Data from: Multi-dimensional patterns of variation in root traits among coexisting herbaceous species in temperate steppes

Meng Zhou, Wenming Bai, Yushi Zhang, Wen‐Hao Zhang & Wen-Hao Zhang
1. Characterizing patterns of variation in plant traits across species and environmental gradients is critical for understanding performance of species in ecosystems. One-dimensional pattern of variation has been demonstrated in leaf traits, which is known as the leaf economic spectrum. However, it is unclear whether such a spectrum exists for root traits. 2. For roots of 15 species from temperate grasslands, we determined respiration rate, relative growth rate, lifespan as well as 10 morphological, chemical...

Data from: Maternal density stress and coccidian parasitism: synergistic effects on overwinter survival in root voles

Yan-Bin Yang, Guo-Zhen Shang, Shou-Yang Du, Xin Zhang, Yan Wu & Jiang-Hui Bian
1. Individuals in poor physiological condition are known to be more susceptible to infection that, once it occurs, further deteriorates the individuals’ conditions, making them even more susceptible to infection and leading to death. This vicious synergy between the host condition and infection has recently been proposed to be among the key factors determining the oscillation characteristics in natural populations. Field studies that directly test such a hypothesis, however, are currently scarce, and the physiological...

Data from: A global test of the cold-climate hypothesis for the evolution of viviparity of squamate reptiles

Liang Ma, Lauren B. Buckley, Raymond B. Huey & Wei-Guo Du
Aim The evolution of viviparity in squamate reptiles has attracted considerable scientific attention since the beginning of last century. The cold climate hypothesis posits that cold regions favor viviparity (and therefore the incidence of viviparous squamates is increased in these regions) because viviparous females can use thermoregulatory behavior to shorten embryonic developmental time and to reduce exposure of embryos to stressful temperatures. However, a rigorous global-scale test of the impact of viviparity on the developmental...

Data from: RADseq data reveal ancient, but not pervasive, introgression between Californian tree and scrub oak species (Quercus sect. Quercus: Fagaceae)

Bernard Y. Kim, Xinzeng Wei, Sorel Fitz-Gibbon, Kirk E. Lohmueller, Joaquin Ortego, Paul F. Gugger & Victoria L. Sork
A long-term debate in evolutionary biology is the extent to which reproductive isolation is a necessary element of speciation. Hybridizing plants in general are cited as evidence against this notion and oaks specifically have been used as the classic example of species maintenance without reproductive isolation. Here, we use thousands of SNPs generated by RAD sequencing to describe the phylogeny of a set of sympatric white oak species in California and then test whether these...

Data from: A taxonomic, functional and phylogenetic perspective on the community assembly of passerine birds along an elevational gradient in southwest China

Xuelian He, Kang Luo, Calum Brown & Luxiang Lin
Integrating multiple-facets of biodiversity to describe spatial and temporal distribution patterns is one way of revealing the mechanisms driving community assembly. We assessed the species, functional and phylogenetic composition and structure of passerine bird communities along an elevational gradient both in wintering and breeding seasons in the Ailao Mountains, southwest China, in order to identify the dominant ecological processes structuring the communities and how these processes change with elevation and season. Our research confirms that...

Data from: A grazing Gomphotherium in Middle Miocene Central Asia, 10 million years prior to the origin of the Elephantidae

Yan Wu, Tao Deng, Yaowu Hu, Jiao Ma, Xinying Zhou, Limi Mao, Hanwen Zhang, Jie Ye & Shi-Qi Wang
Feeding preference of fossil herbivorous mammals, concerning the coevolution of mammalian and floral ecosystems, has become of key research interest. In this paper, phytoliths in dental calculus from two gomphotheriid proboscideans of the middle Miocene Junggar Basin, Central Asia, have been identified, suggesting that Gomphotherium connexum was a mixed feeder, while the phytoliths from G. steinheimense indicates grazing preference. This is the earliest-known proboscidean with a predominantly grazing habit. These results are further confirmed by...

Data from: The spectre of too many species

Adam D. Leache, Tianqi Zhu, Bruce Rannala & Ziheng Yang
Recent simulation studies examining the performance of Bayesian species delimitation as implemented in the BPP program have suggested that BPP may detect population splits but not species divergences and that it tends to over-split when data of many loci are analyzed. Here we confirm these results and provide the mathematical justifications. We point out that the distinction between population and species splits made in the protracted speciation model has no influence on the generation of...

Data from: Intra-specific relatedness, spatial clustering and reduced demographic performance in tropical rainforest trees

Xiaona Shao, Calum Brown, Samantha J. Worthy, Lu Liu, Min Cao, Qiaoming Li, Luxiang Lin & Nathan G. Swenson
Intra-specific negative density dependence promotes species coexistence by regulating population sizes. Patterns consistent with such density dependence are frequently reported in diverse tropical tree communities. Empirical evidence demonstrating whether intra-specific variation is related to these patterns, however, is lacking. The present study addresses this important knowledge gap by genotyping all individuals of a tropical tree in a long-term forest dynamics plot in tropical China. We show that related individuals are often spatially clustered, but having...

Data from: Ecological correlates of Himalayan musk deer Moschus leucogaster

Paras Bikram Singh, Pradip Saud, Kumar Mainali, Doug Cram, Arjun Thapa, Nar Bahadur Chhetri, Laxman P. Poudyal, Hem Sagar Baral, Zhigang Jiang & Douglas Cram
Himalayan musk deer (Moschus leucogaster; hereafter musk deer) are endangered as a result of poaching and habitat loss. The species is nocturnal, crepuscular and elusive, making direct observation of habitat use and behavior difficult. However, musk deer establish and repeatedly use the same latrines for defecation. To quantify musk deer habitat correlates, we used observational spatial data based on presence-absence of musk deer latrines, as well as a range of fine spatial-scale ecological covariates. To...

Data from: Phylogenetic diversity correlated with aboveground biomass production during forest succession: evidence from tropical forests in Southeast Asia

Manichanh Satdichanh, Huaixia Ma, Kai Yan, Gbadamassi G.O. Dossa, Leigh Winowiecki, Tor-Gunnar Vågen, Anja Gassner, Jianchu Xu & Rhett D. Harrison
1. Enhancing knowledge on the role of evolutionary history during forest succession and its relationship with ecosystem function is particularly relevant in the context of forest landscape restoration for climate change mitigation and adaptation. 2. We used fine resolution vegetation and environmental data (soil, elevation and slope) from two large-scale surveys (320 x 1000 m2 plots in two 10 km x 10 km blocks) in the Upper Mekong to quantify (1) the role of abiotic...

Data from: Morphological responses of two plant species from different elevations in the Dongting Lake wetlands, China, to variation in water levels

Youzhi Li, Hualin Bian, Bo Ren, Yonghong Xie, Xiaohui Ding, Xin Yao & Qiaoqiao Zhou
Plants show strong zonation patterns in wetlands. Nevertheless, the mechanisms determining these patterns remain unclear. In the present study, growth and morphological responses to a water level gradient [-20 cm (i.e., water level 20 cm below soil surface), -10 cm, 0 cm, 10 cm, 20 cm] were compared between a higher elevation plant (Imperata cylindrica) and a lower elevation plant (Carex brevicuspis) in the Dongting Lake wetlands of China. The aboveground, belowground, and total biomass...

Registration Year

  • 2018
    78

Resource Types

  • Dataset
    78

Affiliations

  • Chinese Academy of Sciences
    78
  • University of Chinese Academy of Sciences
    35
  • Kunming Institute of Botany
    5
  • Zoological Society of London
    5
  • Biodiversity Research Institute
    4
  • Sichuan University
    4
  • University of Maryland, College Park
    4
  • Institute of Vertebrate Paleontology and Paleoanthropology
    3
  • Peking University
    3
  • North West Agriculture and Forestry University
    2