83 Works

Global biogeography of fungal and bacterial biomass carbon in topsoil

Liyuan He, Jorge Rodrigues, Nadejda Soudzilovskaia, Milagros Barceló, Pål Axel Olsson, Changchun Song, Leho Tedersoo, Fenghui Yuan, Fengming Yuan, David Lipson & Xiaofeng Xu
Bacteria and fungi, representing two major soil microorganism groups, play an important role in global nutrient biogeochemistry. Biogeographic patterns of bacterial and fungal biomass are of fundamental importance for mechanistically understanding nutrient cycling. We synthesized 1323 data points of phospholipid fatty acid-derived fungal biomass C (FBC), bacterial biomass C (BBC), and fungi:bacteria (F:B) ratio in topsoil, spanning 11 major biomes. The FBC, BBC, and F:B ratio display clear biogeographic patterns along latitude and environmental gradients...

From canopy complementarity to asymmetric competition: The negative structure-productivity relationship over the succession of a subtropical forest

Xiaoxia Yi, Ningning Wang, Haibao Ren, Tianyu Hu, Yanjun Su, Xiangcheng Mi, Qinghua Guo & Keping Ma
1. Structure and diversity-productivity relationships are central to many ecological questions. While positive structure and diversity-productivity relationships have been widely documented in controlled experiments and early secondary forests, negative structure-productivity relationships have also been found in late successional forests. Generally, the mechanisms causing observed structure and diversity-productivity relationships are not well established. 2. We examined structure and diversity-productivity relationships from by combining LiDAR and repeated census data from nine 1-ha subtropical forest plots along a...

Brain size variation along altitudinal gradients in the Asiatic Toad (Bufo gargarizans)

Zhongyi Yao
Size changes of brain and brain regions along altitudinal gradients provide insight into the trade-off between energetic expenditure and cognitive capacity. We investigated the brain size variations of the Asiatic Toad (Bufo gargarizans) across altitudes from 700m to 3200m. A total of 325 individuals from 11 sites and two transects were sampled. To reduce confounding factors, all sampling sites within each transect were within a maximum distance of 85km and minimum altitudinal difference close to...

Data from: Climatic-niche evolution follows similar rules in plants and animals

Hui Liu, Qing Ye & John Wiens
Climatic niches are essential in determining where species can occur and how they will respond to climate change. However, it remains unclear if climatic-niche evolution is similar in plants and animals, or intrinsically different. For example, previous authors have proposed that plants have broader environmental tolerances than animals but are more sensitive to climate change. Here we test ten predictions about climatic-niche evolution in plants and animals, using phylogenetic and climatic data for 19 plant...

Long-term shifts in the functional composition and diversity of a tropical dry forest: a 30-yr study

Nathan Swenson, Catherine Hulshof, Masatoshi Katabuchi & Brian Enquist
Over the past three decades there has been a concerted effort to study the long-term dynamics of tropical forests throughout the world. Data regarding temporal trends in species diversity, species composition and species-specific demographic rates have now been amassed. Such data can be utilized to test predictions regarding the roles the environment and demographic stochasticity play in driving forest dynamics. These analyses could be further refined by quantifying the temporal trends in the functional compostion...

Increasing flavonoid concentrations in root exudates enhance associations between arbuscular mycorrhizal fungi and an invasive plant

Baoliang Tian, Yingchun Pei, Wei Huang, Jianqing Ding & Evan Siemann
Many invasive plants have enhanced mutualistic arbuscular mycorrhizal (AM) fungal associations, however, mechanisms underlying differences in AM fungal associations between introduced and native populations of invasive plants have not been explored. Here we test the hypothesis that variation in root exudate chemicals in invasive populations affects AM fungal colonization and then impacts plant performance. We examined flavonoids (quercetin and quercitrin) in root exudates of native and introduced populations of the invasive plant Triadica sebifera and...

Data from: Differential impacts of nitrogen addition on rhizosphere and bulk-soil carbon sequestration in an alpine shrubland

Xiaomin Zhu, Ziliang Zhang, Dongyan Liu, Yongping Kou, Qian Zheng, Mei Liu, Juan Xiao, Qing Liu & Huajun Yin
1. Due to complex root-soil interactions, the responses of carbon (C) dynamics in the rhizosphere to elevated nitrogen (N) deposition may be different from those in bulk soil. However, the potentially different response of C dynamics in the rhizosphere and bulk soils and their contributions to soil C sequestration under N deposition is still not elucidated. 2. We conducted an N addition experiment in an alpine shrubland dominated by Sibiraea angustata located on the eastern...

Data from: ‘In and out of’ the Qinghai-Tibet Plateau and the Himalayas: centers of origin and diversification compared across five clades of Eurasian montane and alpine passerine birds

Martin Päckert, Adrien Favre, Jan Schnitzler, Jochen Martens, Yue-Hua Sun, Dieter Thomas Tietze, Frank Hailer, Ingo Michalak & Patrick Strutzenberger
Encompassing some of the major hotspots of biodiversity on Earth, large mountain systems have long held the attention of evolutionary biologists. The region of the Qinghai-Tibet Plateau (QTP) is considered a biogeographic source for multiple colonization events into adjacent areas including the northern Palearctic. The faunal exchange between the QTP and adjacent regions could thus represent a one-way street (‘out of’ the QTP). However, immigration into the QTP region has so far received only little...

Data from: Examining differences in phylogenetic composition enhances understanding of the phylogenetic structure of the shrub community in the northeastern Qinghai-Tibetan Plateau

Yuanming Xiao, Guoying Zhou, Yang Lucun, Nie Xiuqing, Li Changbin, Xiong Feng & Wang Lingling
Abstract: Periodic climatic oscillations and species dispersal during the post-glacial period are two important causes of plant assemblage and distribution on the Qinghai-Tibet Plateau (QTP). To improve our understanding of the bio-geological histories of shrub communities on the QTP, we tested two hypotheses. First, the intensity of climatic oscillations played a filtering role during community structuring. Second, species dispersal during the post-glacial period contributed to the recovery of species and phylogenetic diversity and the emergence...

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...

Processes at the soil-root interface determine the different responses of nutrient limitation and metal toxicity in forbs and grasses to nitrogen enrichment

Wen-Hao Zhang, Qiuying Tian, Peng Lu, Pengfei Ma, Huirong Zhou, Ming Yang, Xiufeng Zhai, Mengmeng Chen, Hong Wang, Wenchao Li, Wenming Bai & Hans Lambers
Nutrient limitation and metal toxicity have been implicated in changes of grassland communities by nitrogen (N) deposition. Belowground processes, especially those at the soil-root interface, play important roles in determining variation in nutrient concentrations in plants. However, few studies have specifically focused on the roles of these processes in mineral-element acquisition in grassland plants in response to N enrichment. Here we investigated the contributions of belowground processes at the soil-root interface to the differential acquisition...

Xylomelum occidentale (Proteaceae) accesses relatively mobile soil organic phosphorus without releasing carboxylates

Hongtao Zhong, Jun Zhou, Azrul Azmi, André Arruda, Ashlea Doolette, Ronald Smernik & Hans Lambers
1. Hundreds of Proteaceae species in Australia and South Africa typically grow on phosphorus (P)-impoverished soils, exhibiting a carboxylate-releasing P-mobilising strategy. In the Southwest Australian Biodiversity Hotspot, two Xylomelum (Proteaceae) species are widely distributed, but restricted within that distribution. 2. We grew X. occidentale in hydroponics at 1 μM P. Leaves, seeds, rhizosheath and bulk soil were collected in natural habitats. 3. Xylomelum occidentale did not produce functional cluster roots and occupied soils that are...

Nutrient resorption of Kandelia obovata in response to nutrient enrichment

Lili Wei
The impact of nutrient increase on nutrient resorption from senescent leaves is an important topic, which is not completely understood. Mangrove species are characterized by nutrient conservation mechanisms as a consequence of adaptation to nutrient-poor environments. The understanding of the response of the traits related to nutrient conservation strategies to nutrient availability is limited. This study aims to address whether nutrient resorption of mangrove species is responsive to long-term nutrient enrichment. Methods A field-based study...

Biological calcification rate and species-specific contributions of coccolithophores to total calcite inventory in the eastern Indian Ocean

Jun Sun, Haijiao Liu, Misun Yun, Guicheng Zhang, Xiaodong Zhang, Satheeswaran Thangaraj & Ke Huang
Coccolithophores are calcifying protists that have significant role in marine biological pump through calcite production (CP). We determined the biological calcification rate and ecologically key species (e.g. Gephyrocapsa oceanica) contribution to total calcite stocks in the eastern Indian Ocean (EIO) during spring intermonsoon, this region was quite under-sampled compared to other oceanic regions. Our results indicated that the numerically dominant species are of great importance to cell calcite even with low cellular calcite. CP rate...

Does land use age influence carbon cycling in the Tibetan Plateau?

Meta Francis Justine, Pan Kaiwen, Nambajimana Jean De Dieu, Fidele Karamage, Zebene Tadesse, Bikram Pandey, Yang Wanqin, Wu Fuzhong, Olusanya Abioudun Olatunji, Nirdesh Nepal, Friday Uchege, Akash Tariq, Lin Zhang & Xiaoming Sun
Although substantial information had been generated on the effects of land use change on soil organic carbon (SOC) and total nitrogen (TN) storage, studies are absent on multifactorial effects of land use types, land use age, and elevation on SOC and TN storage. SOC and TN were therefore investigated in 30 field sites comprising natural forests, planted forests, shrub, and grasslands. SOC and TN stocks differed and correlated significantly with land use age; the C...

Large losses of ammonium-nitrogen from a rice ecosystem under elevated CO2

Lei Cheng, Chenchao Xu, Kaihang Zhang, Wanying Zhu, Jing Xiao, Chen Zhu, Naifang Zhang, Fangjian Yu, Shuyao Li, Chunwu Zhu, Qichao Tu, Xin Chen, Jianguo Zhu, Shuijin Hu, Roger T Koide & Mary K Firestone
Inputs of nitrogen into terrestrial ecosystems, mainly via the use of ammonium-based fertilizers in agroecosystems, are enormous, but its fate under elevated atmospheric carbon dioxide (CO2) is not well understood. We have taken advantage of a 15-year free air CO2 enrichment study to investigate the influence of elevated CO2 on the transformation of ammonium-nitrogen in a rice ecosystem in which ammonium is usually assumed to be stable under anaerobic conditions. We demonstrate that elevated CO2...

Slab dehydration in Sumatra: Implications for fast and slow earthquakes and arc magmatism

Ji Yingfeng
The catastrophic 2004 Sumatra-Andaman Mw9.1 earthquake associated with destructive tsunamis has characterized Sumatra as one of the most dangerous convergence zones. Nevertheless, the effects of the thermohydrous state on the strongly coupled megathrust of the incoming plate remain enigmatic. By using a 3-D thermomechanical model to compute the temperature variation and the complicated phase transition process of the water-bearing descending plate which generates unstable thrust slips, we find that Sumatran earthquakes at varying depths are...

Primary detection records for aquatic nonindigenous species in global estuarine and marine ecosystems and the Great Lakes

Sarah Bailey, Lyndsay Brown, Marnie Campbell, João Canning-Clode, James Carlton, Nuno Castro, Paula Chainho, Farrah Chan, Joel Creed, Amelia Curd, John Darling, Paul Fofonoff, Bella Galil, Chad Hewitt, Graeme Inglis, Inti Keith, Nicholas Mandrak, Agnese Marchini, Cynthia McKenzie, Anna Occhipinti-Ambrogi, Henn Ojaveer, Larissa Pires-Teixeira, Tamara Robinson, Gregory Ruiz, Kimberley Seaward … & Aibin Zhan
Aim The introduction of aquatic non-indigenous species (ANS) has become a major driver for global changes in species biogeography. We examined spatial patterns and temporal trends of ANS detections since 1965 to inform conservation policy and management. Location Global Methods We assembled an extensive dataset of first records of detection of ANS (1965-2015) across 49 aquatic ecosystems, including the i) year of first collection, ii) population status and iii) potential pathway(s) of introduction. Data were...

Data from: Asymmetric effects of grazing intensity on macroelements and microelements in grassland soil and plants in Inner Mongolia

Dongjie Hou, Ke Guo & Changcheng Liu
Grazing is a traditional grassland management technique and greatly alters ecosystem nutrient cycling. The effects of grazing intensity on the nutrient dynamics of soil and plants in grassland ecosystems remain uncertain, especially among microelements. A two-year field grazing experiment was conducted in a typical grassland with four grazing intensities (ungrazed control, light, moderate, and heavy grazing) in Inner Mongolia, China. Nutrient concentration was assessed in soil and three dominant plant species (Stipa krylovii, Leyums chinensis,...

Legacy effect of grazing intensity mediates the bottom-up controls of resource addition on soil food webs

Dima Chen, Bing Wang, Ying Wu, Shuijin Hu & Yongfei Bai
1. Large-scale studies have demonstrated that nitrogen (N) and water (W) availability greatly affect terrestrial ecosystems worldwide, and this is especially true for the resource-poor semi-arid grasslands. Yet, experimental evidence is lacking for how N and W availability affect soil food webs across historical grazing intensity-altered environments at a local scale. 2. Here, we included N- and W-addition treatments in an 8-year grazing experiment (with four grazing intensities) to determine how the legacy effects of...

Data from: Root vertical distributions of two Artemisia species and their relationships with soil resources in the Hunshandake desert, China

Linna Ma, Xiuli Gao, Xiaoqiang Liu & Renzohng Wang
Plant root variations and their relations with soil moisture and nutrient supply have been well documented for many species, while effects of drought, combined with extreme poor soil nutrients, on plant roots remain unclear. Herein, we addressed root vertical distributions of two typical xerophyte semishrub species, Artemisia sphaerocephala and A. intramongolica, and their relations with soil moisture, total soil nitrogen and carbon contents in arid Hunshandake desert, China. The two species experienced similar light regimes...

Testing trait plasticity over the range of spectral composition of sunlight in forb species differing in shade tolerance

Qing-Wei Wang, T. Matthew Robson, Marta Pieristè, Michio Oguro, Riichi Oguchi, Yoshinori Murai & Hiroko Kurokawa
Although sunlight is essential for plant growth and development, the relative importance of each spectral region in shaping functional traits is poorly understood, particularly in dynamic light environments such as forest ecosystems. We examined responses of 25 functional traits from groups of 11 shade-intolerant and 12 understorey shade-tolerant forb species grown outdoors under five filter treatments differing in spectral transmittance: (1) transmitting c 95% of solar radiation; (2) attenuating ultraviolet-B (UV-B); (3) attenuating all UV;...

Genotypes of Swan Geese Anser cygnoides using 17 nuclear microsatellite loci at 14 locations.

Qin Zhu, Iderbat Damaba, Qingshan Zhao, Kunpeng Yi, Nyambayar Batbayar, Tseveenmyadag Natsagdorj, Davaasuren Batmunkh, Xin Wang, Sonia Rozenfeld, Sachiko Moriguchi, Aibin Zhan, Lei Cao & Anthony David Fox
Dispersal affects the spatial distribution and population structure of species.Dispersal is often male-biased in mammals while female-biased in birds, with the notable exception of the Anatidae. In this study, we tested genetic evidence for sex-biased dispersal (SBD) in the Swan Goose Anser cygnoides, an Asian endemic and IUCN vulnerable species, which has been increasingly restricted to breeding on Mongolian steppe wetlands. We analyzed the genotypes of 278 Swan Geese samples from 14 locations at 14...

Data from: The complete mitochondrial genome of Schoutedenia ralumensis Rübsaamen, 1905 (Hemiptera: Aphididae: Greenideinae)

Jing Chen, Liyun Jiang, Xiaolu Zhang & Gexia Qiao
We sequenced the complete mitochondrial genome of Schoutedenia ralumensis. The mitogenome is 16,051 bp long with an A+T content of 84.5%, including 13 protein-coding genes, 22 transfer RNA genes, 2 ribosomal RNA genes, a control region and an aphid-specific repeat region located between trnE and trnF. All protein-coding genes are initiated by ATN and terminated with TAA or TAG except for cox1 and nad5. All transfer RNAs display the typical clover-leaf secondary structure except for...

Data from: The functional roles of species in metacommunities, as revealed by metanetwork analyses of bird-plant frugivory networks

Hai-Dong Li, Linfang Tang, Chenxi Jia, Marcel Holyoak, Jochen Fründ, Xiaoqun Huang & Zhihsu Xiao
Understanding how biodiversity and interaction networks change across environmental gradients is a major challenge in ecology. We integrated metacommunity and metanetwork perspectives to test species’ functional roles in bird-plant frugivory interactions in a fragmented forest landscape in Southwest China, with consequences for seed dispersal. Availability of fruit resources both on and under trees created vertical feeding stratification for frugivorous birds. Bird-plant interactions involving birds feeding only on the tree or both on and under the...

Registration Year

  • 2020
    83

Resource Types

  • Dataset
    83

Affiliations

  • Chinese Academy of Sciences
    83
  • Peking University
    6
  • Nanjing University
    3
  • San Diego State University
    3
  • University of Chinese Academy of Sciences
    3
  • Yunnan University
    2
  • VU University Amsterdam
    2
  • Zhejiang University
    2
  • University of Georgia
    2
  • Sichuan University
    2