18 Works

Detritus decorations as the extended phenotype deflect avian predator attack increasing fitness in an orb‐web spider

Nina Ma, Long Yu, Deyong Gong, Zeyuan Hua, Hua Zeng, Luyao Chen, Aijia Mao, Zhizhao Chen, Ruxing Cai, Yubing Ma, Zengtao Zhang, DQ Li, Jing Luo & Shichang Zhang
A number of strategies that divert attacks of visually guided predators, such as birds, have evolved multiple times in animals. Detritus web decorations built by certain orb-web spider species are thought to deflect avian predator attacks away from spiders and towards their web decorations. Still, empirical evidence for this function and its adaptive significance is lacking. The orb-web spider, Cyclosa monticola, adorns its web using a linear detritus decoration consisting of moults, egg sacs, prey...

Conservation status of a plant family with high endemism, the Primulaceae, in China

Yun-Hao Bai, Si-Yi Zhang, Yanpei Guo & Zhiyao Tang
Primroses, ca 1000 species from the family Primulaceae, are mostly distributed in high mountains and attract people's attention with their high ornamental value. However, they are increasingly threatened by human activities and climate change in recent decades. China harbors more than half of global primrose species, most of which are endemic. To strengthen studies on their conservation, we established a distribution database for primroses in China, including 12 genera and 535 speceies. Based on this...

Long-term empirical evidence, early warning signals, and multiple drivers of regime shifts in a lake ecosystem

Haojie Su, Rong Wang, Yuhao Feng, Yanling Li, Yun Li, Jun Chen, Chi Xu, Shaopeng Wang, Jingyun Fang & Ping Xie
1. Catastrophic regime shifts in various ecosystems are increasing with the intensification of anthropogenic pressures. Understanding and predicting critical transitions are thus a key challenge in ecology. Previous studies have mainly focused on single environmental drivers (e.g., eutrophication) and early warning signals (EWSs) prior to population collapse. However, how multiple environmental stressors interact to shape ecological behaviour and whether EWSs were detectable prior to the recovery process in lake ecosystems are largely unknown. 2. We...

Leaf size of woody dicots predicts ecosystem primary productivity

Yaoqi Li, Peter Reich, Bernhard Schmid, Nawal Shrestha, Xiao Feng, Tong Lyv, Brian Maitner, Xiaoting Xu, Yichao Li, Dongting Zou, Zheng-Hong Tan, Xiangyan Su, Zhiyao Tang, Qinghua Guo, Xiaojuan Feng, Brian Enquist & Zhiheng Wang
A key challenge in ecology is to understand the relationships between organismal traits and ecosystem processes. Here, with a novel dataset of leaf length and width for 10,480 woody dicots in China and 2,374 in North America, we show that the variation in community mean leaf size is highly correlated with the variation in climate and ecosystem primary productivity, independent of plant life form. These relationships likely reflect how natural selection modifies leaf size across...

Data from: Phylogenetic conservatism and biogeographic affinity influence woody plant species richness-climate relationships in eastern Eurasia

Xiangyan Su, Nawal Shrestha, Xiaoting Xu, Denis Sandanov, Qinggang Wang, Siyang Wang, Dimitar Dimitrov & Zhiheng Wang
Mechanisms underlying species richness patterns remain a central yet controversial issue in biology. Climate has been regarded as a major determinant of species richness. However, the relative influences of different evolutionary processes, (i.e. niche conservatism, diversification rate, and time for speciation) on species richness-climate relationships remain to be tested. Here, using newly compiled distribution maps for 11,422 woody plant species in eastern Eurasia, we estimated species richness patterns for all species and for families with...

Data from: Chromosome-level reference genome assembly and gene editing of the dead-leaf butterfly Kallima inachus

Jie Yang, Wenting Wan, Meng Xie, Junlai Mao, Zhiwei Dong, Sihan Lu, Jinwu He, Feiang Xie, Guihun Liu, Xuelei Dai, Zhou Chang, Ruoping Zhao, Ru Zhang, Shuting Wang, Yiming Zhang, Wei Zhang, Wen Wang & Xueyan Li
The leaf resemblance of Kallima (Nymphalidae) butterflies is an important ecological adaptive mechanism that increases survival. However, the genetic mechanism underlying ecological adaptation remains unclear owing to a dearth of genomic information. Herein, we revealed the karyotype (n = 31) of the dead-leaf butterfly Kallima inachus, assembled its high-quality chromosome-level reference genome (568.92 Mb; contig N50: 19.20 Mb), and identified its Z and candidate W chromosomes. To our knowledge, this is the first study to...

The community-level scaling relationship between leaf nitrogen and phosphorus changes with plant growth, climate and nutrient limitation

Yanpei Guo, Zhengbing Yan, Gheyur Gheyret, Guoyi Zhou, Zongqiang Xie & Zhiyao Tang
This dataset contains community-level leaf nitrogen (N) and phosphorus (P) concentration data from an intensive field investigation across China, including 1080 shrub-community sites from shrublands and 2087 tree-community sites from forests. Mean annual temperature and Thornthwaite moisture index, net primary productivity, and soil total N and P concentrations of each site are also included in this dataset.

A new Changhsingian (Lopingian) brachiopod fauna of the shallow-water clastic-shelf facies from Fujian Province, southeastern China

Huiting Wu, Yang Zhang, Thomas Stubbs, Jingqi Liu & Yuanlin Sun
Although much attention has been paid to Changhsingian brachiopods in South China, there are only two Chinese studies, published in 1979 and 1990, on Changhsingian brachiopods from the southeastern part of South China. Based on systematically collected fossil material, this paper describes and quantitatively analyses a Changhsingian brachiopod fauna from the Luokeng Formation at the Hongtian section, Fujian Province, southeastern China, for the first time. Among the brachiopods (30 species in 18 genera) described and...

Rainfall pulses mediate long-term plant community compositional dynamics in a semi-arid rangeland

Maowei Liang, Xiao Feng & Elise Gornish
1. Semi-arid rangelands, comprising more than 40% of the Earth’s land surface, provide critical ecosystem services. Worldwide, these ecosystems are experiencing rapid degradation due to overgrazing and precipitation changes. However, how plants respond to these interacting factors remains relatively unexplored, and precisely which and how rainfall factors determine plant community dynamics in rangelands has not been well developed. 2. We used a long-term (1953‒2018) dataset from semi-arid rangeland to investigate coupled effects of grazing intensity...

Soil extracellular enzyme activity and stoichiometry in China’s forests

Luhong Zhou, Shangshi Liu, Haihua Shen, Mengying Zhao, Longchao Xu, Aijun Xing & Jingyun Fang
1. Ecoenzymatic stoichiometry links microbial decomposition with nutrient mineralization and improves our understanding of nutrient cycling in terrestrial ecosystems. Microbial C:N:P acquisition in the topsoil converged at a ratio of 1:1:1 in global ecosystems. However, whether the ratio of microbial acquisition is stable in forest soils, and is applicable among different soil depths remain unknown. 2. Based on large-scale soil sampling in China’s forests, we examined the patterns and environmental drivers of the eight most-widely...

Data from: Phosphorus alleviation of nitrogen-suppressed methane sink in global grasslands

Lihua Zhang, Fenghui Yuan, Junhong Bai, Hongtao Duan, Xueying Gu, Longyu Hou, Yao Huang, Mingan Yang, Jinsheng He, Zhenghua Zhang, Lijun Yu, Changchun Song, David Lipson, Donatella Zona, Walter Oechel, Ivan Janssens & Xiaofeng Xu
Grassland ecosystems account for more than 10% of the global CH4 sink in soils. A 4-year field experiment found that addition of P alone did not affect CH4 uptake and experimental addition of N alone significantly suppressed CH4 uptake, while concurrent N and P additions suppressed CH4 uptake to a lesser degree. A meta-analysis including 382 data points in global grasslands corroborated these findings. Global extrapolation with an empirical modeling approach estimated that contemporary N...

Shifts in plant composition mediate grazing effects on carbon cycling in grasslands

Maowei Liang, Nicholas Smith, Jiquan Chen, Yantao Wu, Zhiwei Guo, Elise Gornish & Cunzhu Liang
Carbon cycling in grasslands can be impacted by livestock grazing, partially as an indirect result of herbivory-induced compositional shifts in the plant community. However, the underlying mechanisms of how these shifts impact carbon cycling are not well documented. We conducted a long-term grazing experiment with four sheep stocking rates in the semi-arid grasslands of Inner Mongolia, China, to examine grazing effects on the ratio of C3 to C4 species (C3:C4), shoot biomass, root biomass, root:shoot,...

Patterns of nitrogen and phosphorus pools in terrestrial ecosystems in China

Yi-Wei Zhang, Yanpei Guo, Zhiyao Tang, Yuhao Feng, Xinrong Zhu, Wenting Xu, Yongfei Bai, Guoyi Zhou, Zongqiang Xie & Jingyun Fang
Recent increases in atmospheric carbon dioxide (CO2) and temperature relieve their limitations on terrestrial ecosystem productivity, while nutrient availability constrains the increasing plant photosynthesis more intensively. Nitrogen (N) and phosphorus (P) are critical for plant physiological activities and consequently regulates ecosystem productivity. Here, for the first time, we mapped N and P densities and concentrations of leaves, woody stems, roots, litter and soil in forest, shrubland and grassland ecosystems across China, based on an intensive...

A comprehensive and comparative evaluation of primers for metabarcoding eDNA from fish

Shan Zhang, Jindong Zhao & Meng Yao
Accurate assessments of fish species diversity and community composition are essential for understanding fish ecology and conservation management. Environmental DNA (eDNA) metabarcoding has become an integrated method for monitoring fish species. The accuracy and efficacy of eDNA metabarcoding relies heavily on the choice of primers used for PCR amplification. A wide selection of metabarcoding primers for fish has been developed; however, there exists no comprehensive and comparative evaluation of their amplification or taxonomic classification of...

The effect of methylene blue on white matter injury after MCAO in rats and mice

Quancheng Cheng, Xuhao Chen, Jiayi Ma, Xingyuan Jiang, Jiahui Chen, Mengqin Zhang, Yejun Wu, Weiguang Zhang & Chunhua Chen
Objectives: Methylene blue, the FDA-grandfathered drug was proved to be neuroprotective in ischemic stroke in rat. However, the mechanism of the protective effect was unknown. In this study, we used different animal models to investigate the effect of MB administration given within and beyond the therapeutic time window on behavioral deficits and infarct volume and related mechanism about the white matter protection. Methods: Middle cerebral artery occlusion and reperfusion (MCAO) and photothrombotic middle cerebral artery...

Data from: Brachial supporting structure of Spiriferida (Brachiopoda)

Zhiwei Yuan, Wen Guo, Dan Lü & Yuanlin Sun
The filter-feeding organ of some extinct brachiopods is supported by a skeletal apparatus called the brachidium. Although relatively well-studied in Atrypida and Athyridida, the brachidial morphology is usually neglected in Spiriferida. To investigate the variations of brachidial morphology in Spiriferida, 65 species belonging to eight superfamilies were analyzed. Based on the presence/absence of the jugal processes and normal/modified primary lamellae of the spiralia, four types of brachidium are recognized. Type-I (with jugal processes) and Type-II...

Predicting reservoir hosts based on early SARS-CoV-2 samples and analyzing later world-wide pandemic

Qian Guo, Mo Li, Chunhui Wang, Jinyuan Guo, Xiaoqing Jiang, Jie Tan, Peihong Wang, Shufang Wu, Tingting Xiao, Man Zhou, Zhencheng Fang, Yonghong Xiao & Huaiqiu Zhu
The SARS-CoV-2 pandemic has raised the concern for reservoir hosts of the virus since the early-stage outbreak. To address this problem, we proposed a deep learning method, DeepHoF, based on extracting the viral genomic features, to calculate the infection likelihoods and further predict the probable hosts of novel viruses. Overcoming the limitation of sequence similarity-based methods, DeepHoF was applied to the analysis of SARS-CoV-2 in the 2020 pandemic. Using the isolates sequenced in the earliest...

Data from: Global prevalence and burden of HIV-associated neurocognitive disorder: A meta-analysis

Yunhe Wang, Moxuan Liu, Qingdong Lu, Michael Farrell, Julia Lappin, Jie Shi, Lin Lu & Yanping Bao
Objectives: We aimed to characterise the prevalence and burden of HAND and assess associated factors in the global population with HIV. Methods: We searched PubMed and Embase for cross-sectional or cohort studies reporting the prevalence of HAND or its subtypes in HIV-infected adult populations from Jan 1, 1996, to May 15, 2020, without language restrictions. Two reviewers independently undertook the study selection, data extraction, and quality assessment. We estimated pooled prevalence of HAND by a...

Registration Year

  • 2020
    18

Resource Types

  • Dataset
    18

Affiliations

  • Peking University
    18
  • Chinese Academy of Sciences
    7
  • University of Arizona
    3
  • Sichuan University
    2
  • Yunnan University
    1
  • Minzu University of China
    1
  • University of Antwerp
    1
  • Zhejiang University
    1
  • Inner Mongolia University
    1
  • University of Minnesota
    1