90 Works

Grazing intensity significantly changes the C:N:P stoichiometry in grassland ecosystems

Guiyao Zhou, Miao He, Tengfei Yuan, Kees Jan Van Groenigen, Junjiong Shao & Xuhui Zhou
Aim: Livestock grazing can alter carbon (C), nitrogen (N) and phosphorus (P) cycles, thereby affecting the C:N:P stoichiometry in grasslands. In this study, we aimed to examine the underlying mechanisms for the impacts of grazing intensity on grassland C:N:P stoichiometry, especially for the belowground processes and their linkages with aboveground vegetation properties. Location: Global. Time period: 1900-2018. Major taxa studied: Grassland ecosystems. Methods: Here, we conducted a meta-analysis based on 129 published studies to synthesize...

The amount of RNA editing sites in liverwort organellar genes is correlated with GC content and nuclear PPR protein diversity

Shanshan Dong, Chaoxian Zhao, Shouzhou Zhang, Hong Wu, Weixue Mu, Tong Wei, Na Li, Tao Wan, Huan Liu, Jie Cui, Ruiliang Zhu, Bernard Goffinet & Yang Liu
RNA editing occurs in the organellar mRNAs of all land plants but the marchantioid liverworts, making liverworts a perfect group for studying the evolution of RNA editing. Here we profiled the RNA editing of 42 exemplars spanning the ordinal phylogenetic diversity of liverworts, and screened for the nuclear-encoded PPR proteins in the transcriptome assemblies of these taxa. We identified 7,428 RNA editing sites in 128 organellar genes from 31 non-marchantioid liverwort species, and characterized 25,059...

Data from: Historical introgression and the persistence of ghost alleles in the intermediate horseshoe bat (Rhinolophus affinis)

Xiuguang Mao, Guimei He, Panyu Hua, Gareth Jones, Shuyi Zhang & Stephen J. Rossiter
Phylogenetic conflicts between genetic markers can help to disentangle complex histories of phylogeography and introgression among taxa. We previously proposed that the Chinese mainland subspecies of the intermediate horseshoe bat Rhinolophus affinis himalayanus colonized Hainan Island to form the subspecies R. a. hainanus. Subsequent recolonization of the mainland formed a third taxon, R. a macrurus, and a secondary contact zone with the ancestral himalayanus. To test for historical and recurrent genetic exchange between these mainland...

Data from: Asymmetric sensitivity of ecosystem carbon and water processes in response to precipitation change in a semi-arid steppe

Bingwei Zhang, Xingru Tan, Shanshan Wang, Minling Chen, Shiping Chen, Tingting Ren, Jianyang Xia, Yongfei Bai, Jianhui Huang & Xingguo Han
Semi-arid ecosystems play an important role in regulating the dynamics of the global terrestrial CO2 sink. These dynamics are mainly driven by increasing inter-annual precipitation variability. However, how ecosystem carbon processes respond to changes in precipitation is not well understood, due to a lack of substantial experimental evidence that combines increased and decreased precipitation treatments. This study, a 3-year field manipulation experiment with five precipitation levels conducted in a semi-arid steppe, examined the impacts of...

Data from: Carrying capacity in a heterogeneous environment with habitat connectivity

Bo Zhang, Alex Kula, Keenan M.L. Mack, Lu Zhai, Arrix L. Ryce, Wei-Ming Ni, Donald L. DeAngelis & J. David Van Dyken
A large body of theory predicts that populations diffusing in heterogeneous environments reach higher total size than if non-diffusing, and, paradoxically, higher size than in a corresponding homogeneous environment. However, this theory and its assumptions have not been rigorously tested. Here, we extended previous theory to include exploitable resources, proving qualitatively novel results, which we tested experimentally using spatially diffusing laboratory populations of yeast. Consistent with previous theory, we predicted and experimentally observed that spatial...

Data from: Loss of top-down biotic interactions changes the relative benefits for obligate mutualists

Rong Wang, Xiao-Yong Chen, Yan Chen, Gang Wang, Derek Dunn, Rupert Quinnell & Steve Compton
The collapse of mutualisms due to anthropogenic changes is contributing to losses of biodiversity. Top predators can regulate biotic interactions between species at lower trophic levels and may contribute to the stability of such mutualisms, but they are particularly likely to be lost after disturbance of communities. We focused on the mutualism between the fig tree Ficus microcarpa and its host-specific pollinator fig wasp and compared the benefits accrued by the mutualists in natural and...

Source–sink dynamics assists the maintenance of a pollinating wasp

Xin Tong, Yuan-Yuan Ding, Jun-Yin Deng, Rong Wang & Xiao-Yong Chen
Dispersal that unites spatially subdivided populations into a metapopulation with source–sink dynamics is crucial for species persistence in fragmented landscapes. Understanding such dynamics for pollinators is particularly urgent owing to the ongoing global pollination crisis. Here, we investigated the population structure and source–sink dynamics of a pollinating wasp (Wiebesia sp. 3) of Ficus pumila in the Zhoushan Archipelago of China. We found significant asymmetry in the pairwise migrant numbers for 22 of 28 cases on...

Data from: Nighttime warming enhances ecosystem carbon-use efficiency in a temperate steppe

Jing Wang, Qian Zhang, Jian Song, Jingyi Ru, Zhenxing Zhou, Jianyang Xia, Jeffrey Dukes & Shiqiang Wan
1. Reductions in the diurnal temperature range (DTR), e.g., greater increases in daily minimum than maximum temperatures, have occurred for several decades and are projected to continue over this century, which could affect terrestrial carbon (C) cycling. Carbon-use efficiency of plants (CUEp) and ecosystems (CUEe) represents the capacity of plants to capture C and ecosystems to store C fixed from the atmosphere, respectively. Few studies have examined how grassland CUE responds to asymmetric warming. 2....

Diversity and identity of economics traits determine the extent of tree mixture effects on ecosystem productivity

Liting Zheng, Han Chen, Shekhar Biswas, Difeng Bao, Xiaochen Fang, Muhammad Abdullah & Enrong Yan
1. Although both observational and experimental studies have shown that positive tree species diversity-productivity relationships are predominant in global forests, weak or the lack of tree species diversity and productivity relationships also exist. Growing evidence has revealed that ecosystem productivity depends more on the functional characteristics of species than on their number. However, exactly to what extent tree diversity effects on ecosystem productivity are influenced by the variability and composition of functional traits have been...

Data from: Revisiting the measurement of anomie

Ali Teymoori, Jolanda Jetten, Brock Bastian, Amarina Ariyanto, Frédérique Autin, Nadia Ayub, Constantina Badea, Tomasz Besta, Fabrizio Butera, Rui Costa-Lopes, Lijuan Cui, Carole Fantini, Gillian Finchilesc, Lowell Gaertner, Mario Gollwitzer, Ángel Gómez, Roberto González, Ying Yi Hong, Dorthe Høj Jensen, Minoru Karasawa, Thomas Kessler, Olivier Klein, Marcus Lima, Tuuli Anna Mähönen, Laura Megevand … & Gillian Finchilescu
Sociologists coined the term "anomie" to describe societies that are characterized by disintegration and deregulation. Extending beyond conceptualizations of anomie that conflate the measurements of anomie as 'a state of society' and as a 'state of mind', we disentangle these conceptualizations and develop an analysis and measure of this phenomenon focusing on anomie as a perception of the 'state of society'. We propose that anomie encompasses two dimensions: a perceived breakdown in social fabric (i.e.,...

Data from: Multiple cases of asymmetric introgression among horseshoe bats detected by phylogenetic conflicts across loci

Xiuguang Mao, Vu D. Thong, Paul J. J. Bates, Gareth Jones, Shuyi Zhang & Stephen J. Rossiter
Phylogenetic discordance among taxa can provide powerful insights into past episodes of introgressive hybridization, as well as lineage sorting. Previously, we showed that the taxonomically distinct taxon Rhinolophus sinicus septentrionalis has undergone historical introgression with its sympatric sister subspecies Rhinolophus sinicus sinicus. To examine in more detail the extent of gene flow between these two taxa, and also between these and their sister species Rhinolophus thomasi, we obtained new samples from China, Myanmar, and Vietnam,...

Data from: Morphological and digestive adjustments buffer performance: how staging shorebirds cope with severe food declines

Shoudong Zhang, Zhijun Ma, Chi-Yeung Choi, He-Bo Peng, David S. Melville, Tian-Tian Zhao, Qing-Quan Bai, Wen-Liang Liu, Ying-Chi Chan, Jan A. Van Gils & Theunis Piersma
Organisms cope with environmental stressors by behavioral, morphological, and physiological adjustments. Documentation of such adjustments in the wild provides information on the response space in nature and the extent to which behavioral and bodily adjustments lead to appropriate performance effects. Here we studied the morphological and digestive adjustments in a staging population of migrating Great Knots Calidris tenuirostris in response to stark declines in food abundance and quality at the Yalu Jiang estuarine wetland (northern...

Data from: Resource addition drives taxonomic divergence and phylogenetic convergence of plant communities

Xian Yang, Guoyong Li, Shao-Peng Li, Qianna Xu, Huanhuan Song, Danyu Sun, Mingxing Zhong, Zhenxing Zhou, Jian Song, Jingyi Ru, Shiqiang Wan & Lin Jiang
1. Anthropogenic environmental changes are known to affect the Earth’s ecosystems. However, how these changes influence assembly trajectories of the impacted communities remains a largely open question. 2. In this study, we investigated the effect of elevated nitrogen (N) deposition and increased precipitation on plant taxonomic and phylogenetic β-diversity in a 9-year field experiment in the temperate semi-arid steppe of Inner Mongolia, China. 3. We found that both N and water addition significantly increased taxonomic...

Data from: Range-wide multilocus phylogeography of the red fox reveals ancient continental divergence, minimal genomic exchange, and distinct demographic histories

Mark J. Statham, Zhenghuan Wang, Carl D. Soulsbury, Jan Janecka, Benjamin N. Sacks, Keith B. Aubry, Oliver Berry, Ceiridwen J. Edwards & James Murdoch
Widely distributed taxa provide an opportunity to compare biogeographic responses to climatic fluctuations on multiple continents and to investigate speciation. We conducted the most geographically and genomically comprehensive study to date of the red fox (Vulpes vulpes), the world's most widely distributed wild terrestrial carnivore. Analyses of 697 bp of mitochondrial sequence in ~1000 individuals suggested an ancient Middle Eastern origin for all extant red foxes and a 400 kya (SD = 139 kya) origin...

β diversity among ant communities on fragmented habitat islands: the roles of species trait, phylogeny and abundance

Yuhao Zhao, Nathan Sanders, Juan Liu, Tinghao Jin, Haonan Zhou, Ruisen Lu, Ping Ding & Xingfeng Si
Habitat loss and fragmentation reduce biodiversity and alter species composition in local communities. β diversity describes the variation in species composition between or among communities in fragmented landscapes and has two components: species turnover and nestedness. In this study, we assessed β diversity of ant assemblages on 24 island fragments in the Thousand Island Lake, China. We constructed a species-level phylogenetic tree and measured five morphological traits of all ant species captured. We then assessed...

Data from: Tree species with conservative foliar nutrient status and strong phosphorus homeostasis are regionally abundant in subtropical forests

Hang Ci, Chao Guo, Bin Tuo, Liting Zheng, Mingshan Xu, Bile Sai, Baiyu Yang, Yongchuan Yang, Wenhui You, Enrong Yan & Johannes H.C. Cornelissen
Foliar nitrogen (N) or phosphorus (P) status and their stoichiometric homeostasis are integral parts of the plant nutrient economy that determines the success of plant species in environments where N or P limits plant growth. Despite growing evidence for higher predictability of stoichiometric homeostasis of N (HN) than that of P (HP) on plant species abundance in temperate grasslands, no previous studies explicitly examined how foliar N and P status modulate the relationships between stoichiometric...

Tables of microRNA and gene expression of an echolocating bat

Qianqian Li & Xiuguang Mao
MicroRNAs (miRNAs) are important post-transcriptional regulators of gene expression and play key roles in many biological processes, such as development and response to multiple stresses. However, little is known about their roles in generating novel phenotypes and phenotypic variation during the course of animal evolution. Here, we, for the first time, characterized the miRNAs of the cochlea in an echolocating bat (Rhinolophus affinis). We sampled eight individuals from two R. affinis subspecies with significant echolocation...

Regional and local environment drive biogeographic patterns in intertidal microorganisms

Yuan XU
Aim: Understanding large-scale spatial distribution patterns is not only a central goal of ecology but is also essential for conservation planning. Nevertheless, the biogeographical patterns of diversity and composition remain unclear for microorganisms and the role of various factors in structuring their assemblages is still poorly known. Here, we tested whether the diversity and community structure of ciliates are driven by both local environmental and regional dispersal-related processes. Location: Coasts of China. Taxon: Benthic ciliates....

Data from: Hierarchical polygyny in multiparous lesser flat-headed bats

Panyu Hua, Libiao Zhang, Guangjian Zhu, Gareth Jones, Shuyi Zhang & Stephen James Rossiter
How males gain access to mates and the potential for female choice will determine whether polygyny can operate at several levels, from within litters and groups to the wider population. Female lesser flat-headed bats (Tylonycteris pachypus) form maternity groups in bamboo stems. Unusually for bats, they are multiparous, providing the opportunity to test whether multi-level polygyny differs among males depending on whether they roost with females, with males, or are solitary. We genotyped 662 individuals...

Data from: Darwin’s naturalization conundrum reconciled by changes of species interactions

Xiao-Yan Wang, Jiang Wang, Shao-Peng Li, Yuan Ge, Song Gao, Tong Chen & Fei-Hai Yu
Although phylogenetic distance between native and exotic species has a close link with their interactions, it is still unclear how environmental stresses and species interactions influence the relationship between phylogenetic distance and biological invasions. Here we assessed the effect of invader-native phylogenetic distance on the growth of the invader (Symphyotrichum subulatum) under three levels of drought (no, moderate or intensive drought). Under no drought, interspecific competition between close relatives was the dominant process, and native...

‘Social distancing’ between plants may amplify coastal restoration at early stage

Hao Huang, Chi Xu & Quan‐Xing Liu
This dataset contains data and codes from three field experiments described in the paper: “Hao Huang, Chi Xu and Quan-Xing Liu. (2021) ‘Social distancing’ between plants may amplify coastal restoration at early stage, Journal of Applied Ecology, DOI: 10.1111/1365-2664.14044”. The experiment investigates the effects of a factorial combination of three factors: above-ground spatial configurea and below-ground connectivity with low- and high-elevation environmental stress. We test the two species (Scirpus and Spartina) on performance such as...

Data from: Functionally diverse tree stands reduce herbaceous diversity and productivity via canopy packing

Liting Zheng, Y. H. Han Chen, Yann Hautier, Difeng Bao, Mingshan Xu, Baiyu Yang, Zhao Zhao, Li Zhang & Enrong Yan
1. There is extensive experimental evidence for the importance of biodiversity in sustaining ecosystem functioning. However, such experiments typically prevent immigration by continuously removing non-target species, thereby questioning the generality of these findings to real-world ecosystems. This is particularly true in forest ecosystems where understorey herbaceous species are key biodiversity components but are usually weeded in tree diversity experiments. Consequently, little is known about how tree diversity influences the natural dynamics of understorey herbaceous layers....

Shifting roles of the East China Sea in the phylogeography of Machilus thunbergii (Lauraceae) in East Asia

Kai Jiang, Xin Tong, Yan-Qian Ding, Zheng-Wei Wang, Li-Yuan Miao, Yue-E Xiao, Wei-Chang Huang, Yong-Hong Hu & Xiao-Yong Chen
This dataset contains one README file and two raw data files on the distribution and genetic data described in the paper: Jiang et al. (2021) Shifting roles of the East China Sea in the phylogeography of Machilus thunbergii (Lauraceae) in East Asia. Journal of Biogeography. Ecological niche modeling was employed to predict the potential distribution of M. thunbergii during the Last Glacial Maximum (LGM) and the last interglacial period. Nuclear microsatellite and chloroplast markers were...

A comparison between implicit and explicit self-monitoring: temporal wagering versus confidence rating

Duan Wei, Cai Yudian, Wang Xinyi & Kwok Sze Chai
Self-monitoring is a metacognitive activity that individuals control and alter their behavior based on the assessments of their own cognitive status, which involves both explicit and implicit dimensions. Confidence rating task is mostly used to measure explicit monitoring. Recently post-decision wagering (PDW) task has been developed to quantify implicit monitoring ability. Specifically, temporal wagering task estimates the decision confidence by measuring the waiting time subjects are willing to spend in waiting delayed reward, which is...

Unraveling the roles of various ecological factors in seedling recruitment to facilitate plant regeneration

Yuanyuan Li, Rong Wang & Xiao-Yong Chen
Unraveling the mechanisms causing restricted regeneration and limited distribution range has become a core issue for biodiversity conservation. Anthropogenic disturbances are changing a variety of ecological factors, but how their relative importance varies across multiple regeneration stages is still unclear even in a single species. In this study, we focused on Metasequoia glyptostroboides, a relict species suffering a severely restricted regeneration in the wild, and performed controlled experiments using 54,600 seeds to investigate seedling emergence...

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