The new Project 596(2011-2015)within the International Geoscience Programme(IGCP)started in April 2011.It focuses on climate change and biodiversity patterns in the Mid-Paleozoic(Early Devonian to Late Carboniferous)....The new Project 596(2011-2015)within the International Geoscience Programme(IGCP)started in April 2011.It focuses on climate change and biodiversity patterns in the Mid-Paleozoic(Early Devonian to Late Carboniferous).Here we provide a summary of activities during the Opening Meeting.The first annual conference resulted in a consolidation of a global network including researchers of other large projects such as IGCP 580 and IGCP 591.Until now the group of participants interested in collaboration counts 135 scientists of 26 countries of which more than one-third are women in science.Participants come form Australia(2),Austria(3),Belgium(10),Bulgaria(2),Canada(1),China(1),Czech Republic(12),Estonia(1),France(13),Germany(11),Iran(1),Italy(5),Japan(7),Malaysia(1),Mongolia(4),Morocco(1),Myanmar(1),Poland(8),Portugal(2),Russia(10),Spain(19),Thailand(4),Turkey(3),United Kingdom(3),U.S.A.(9),and Vietnam(1).In order to secure the future of the international collaboration within IGCP 596,further financial support is acquired by project-grants from national science institutions of several countries.In addition to the achievements during the Opening Meeting,a short overview on other joint conferences held in 2011 and those scheduled for 2012 is given.展开更多
IGCP 596(2011-2015)has a primary focus on climate change and biodiversity patterns in the Mid-Paleozoic(Early Devonian to Late Carboniferous).As a part of this project,we conducted a field workshop in western Mongolia...IGCP 596(2011-2015)has a primary focus on climate change and biodiversity patterns in the Mid-Paleozoic(Early Devonian to Late Carboniferous).As a part of this project,we conducted a field workshop in western Mongolia in the summer of 2012.The goal was to locate fossiliferous sections that expose the stage boundaries from the Eifelian/Givetian boundary(Middle Devonian)to the Devonian/Carboniferous boundary to expand our knowledge of the key Devonian biotic and geochemical events such as the Frasnian/Famennian extinction event and the Kacák.展开更多
The rock–paper–scissors （RPS） game is a nice model to study the biodiversity in an ecosystem. However, in the previous studies only the nearest-neighbor interaction among the species was considered. In this paper,...The rock–paper–scissors （RPS） game is a nice model to study the biodiversity in an ecosystem. However, in the previous studies only the nearest-neighbor interaction among the species was considered. In this paper, taking the long-range migration into account, the effects of the interplay between nearest-neighbor-interaction and long-range-interaction given by Levy flight with distance distribution lh （-3 ≤ h 〈-1） in the spatial RPS game are investigated. Taking the probability, exchange rate, and power-law exponent of Levy flight as parameters, the coexistence conditions of three species are given. The critical curves for stable coexistence of three species in the parameter space are presented. It is also found that Levy flight has interesting effects on the final spatiotemporal pattern of the system. The results reveal that the long-range-interaction given by Levy flight exhibits pronounced effects on biodiversity of the ecosystem.展开更多
The succession of benthic fauna characterizes the environmental dynamics of cold seep ecosystems,offering insights into deepsea biodiversity patterns and the influence of geofluid on the local biosphere.Previous studi...The succession of benthic fauna characterizes the environmental dynamics of cold seep ecosystems,offering insights into deepsea biodiversity patterns and the influence of geofluid on the local biosphere.Previous studies documented the presence and abundance of specific taxa at different stages of seep development,revealing the patchy distribution of faunal assemblages[1].As research progresses,specific environmental factors,including the levels of methane,sulfide.展开更多
In forest ecosystems,plant communities shape soil fungal communities through the provisioning of carbon.Although the variation in forest composition with latitude is well established,little is known about how soil fun...In forest ecosystems,plant communities shape soil fungal communities through the provisioning of carbon.Although the variation in forest composition with latitude is well established,little is known about how soil fungal communities vary with latitude.We collected soil samples from 17 forests,along a latitudinal transect in western China.Forest types covered included boreal,temperate,subtropical and tropical forests.We used 454 pyrosequencing techniques to analyze the soil communities.These data were correlated with abiotic and biotic variables to determine which factors most strongly influenced fungal community composition.Our results indicated that temperature,latitude,and plant diversity most strongly influence soil fungal community composition.Fungal diversity patterns were unimodal,with temperate forests(mid latitude)exhibiting the greatest diversity.Furthermore,these diversity patterns indicate that fungal diversity was highest in the forest systems with the lowest tree diversity(temperate forests).Different forest systems were dominated by different fungal subgroups,ectomycorrhizal fungi dominated in boreal and temperate forests;endomycorrhizal fungi dominated in the tropical rainforests,and non-mycorrhizal fungi were best represented in subtropical forests.Our results suggest that soil fungal communities are strongly dependent on vegetation type,with fungal diversity displaying an inverse relationship to plant diversity.展开更多
文摘The new Project 596(2011-2015)within the International Geoscience Programme(IGCP)started in April 2011.It focuses on climate change and biodiversity patterns in the Mid-Paleozoic(Early Devonian to Late Carboniferous).Here we provide a summary of activities during the Opening Meeting.The first annual conference resulted in a consolidation of a global network including researchers of other large projects such as IGCP 580 and IGCP 591.Until now the group of participants interested in collaboration counts 135 scientists of 26 countries of which more than one-third are women in science.Participants come form Australia(2),Austria(3),Belgium(10),Bulgaria(2),Canada(1),China(1),Czech Republic(12),Estonia(1),France(13),Germany(11),Iran(1),Italy(5),Japan(7),Malaysia(1),Mongolia(4),Morocco(1),Myanmar(1),Poland(8),Portugal(2),Russia(10),Spain(19),Thailand(4),Turkey(3),United Kingdom(3),U.S.A.(9),and Vietnam(1).In order to secure the future of the international collaboration within IGCP 596,further financial support is acquired by project-grants from national science institutions of several countries.In addition to the achievements during the Opening Meeting,a short overview on other joint conferences held in 2011 and those scheduled for 2012 is given.
文摘IGCP 596(2011-2015)has a primary focus on climate change and biodiversity patterns in the Mid-Paleozoic(Early Devonian to Late Carboniferous).As a part of this project,we conducted a field workshop in western Mongolia in the summer of 2012.The goal was to locate fossiliferous sections that expose the stage boundaries from the Eifelian/Givetian boundary(Middle Devonian)to the Devonian/Carboniferous boundary to expand our knowledge of the key Devonian biotic and geochemical events such as the Frasnian/Famennian extinction event and the Kacák.
基金Project partially supported by the National Natural Science Foundation of China(Grant Nos.61174150 and 60974084)the Program for New Century Excellent Talents in University of Ministry of Education of China(Grant No.NCET-09-0228)the Fundamental Research Funds for the Central Universities of Beijing Normal University,and the High Performance Computing Center of Beijing Normal University
文摘The rock–paper–scissors （RPS） game is a nice model to study the biodiversity in an ecosystem. However, in the previous studies only the nearest-neighbor interaction among the species was considered. In this paper, taking the long-range migration into account, the effects of the interplay between nearest-neighbor-interaction and long-range-interaction given by Levy flight with distance distribution lh （-3 ≤ h 〈-1） in the spatial RPS game are investigated. Taking the probability, exchange rate, and power-law exponent of Levy flight as parameters, the coexistence conditions of three species are given. The critical curves for stable coexistence of three species in the parameter space are presented. It is also found that Levy flight has interesting effects on the final spatiotemporal pattern of the system. The results reveal that the long-range-interaction given by Levy flight exhibits pronounced effects on biodiversity of the ecosystem.
基金supported by the National Natural Science Founda-tion of China(42122045 and 42306171)the Development Fund of South China Sea Institute of Oceanology,Chinese Academy of Sciences(SCSIO202202)the PI project of Southern Marine Science and Engineering Guangdong Laboratory(Guangzhou)(GML20190609).
文摘The succession of benthic fauna characterizes the environmental dynamics of cold seep ecosystems,offering insights into deepsea biodiversity patterns and the influence of geofluid on the local biosphere.Previous studies documented the presence and abundance of specific taxa at different stages of seep development,revealing the patchy distribution of faunal assemblages[1].As research progresses,specific environmental factors,including the levels of methane,sulfide.
基金This study was supported by grants from Ministry of Science and Technology(MOST)of China(973 Program No.2012CB416904)National Natural Science Foundation of China(No.90302013)+2 种基金Natural Science Foundation of Yunnan(2005C0056M)Wang K.C.Foundation,and grants(DEB-0620910,DEB-0218039)from U.S.National Science FoundationThe work was also partially funded by the CG Research Program 6:Forests,Trees and Agroforestry.ADNA sequence data are available via GenBank(accession no.KF411754-KF412201).
文摘In forest ecosystems,plant communities shape soil fungal communities through the provisioning of carbon.Although the variation in forest composition with latitude is well established,little is known about how soil fungal communities vary with latitude.We collected soil samples from 17 forests,along a latitudinal transect in western China.Forest types covered included boreal,temperate,subtropical and tropical forests.We used 454 pyrosequencing techniques to analyze the soil communities.These data were correlated with abiotic and biotic variables to determine which factors most strongly influenced fungal community composition.Our results indicated that temperature,latitude,and plant diversity most strongly influence soil fungal community composition.Fungal diversity patterns were unimodal,with temperate forests(mid latitude)exhibiting the greatest diversity.Furthermore,these diversity patterns indicate that fungal diversity was highest in the forest systems with the lowest tree diversity(temperate forests).Different forest systems were dominated by different fungal subgroups,ectomycorrhizal fungi dominated in boreal and temperate forests;endomycorrhizal fungi dominated in the tropical rainforests,and non-mycorrhizal fungi were best represented in subtropical forests.Our results suggest that soil fungal communities are strongly dependent on vegetation type,with fungal diversity displaying an inverse relationship to plant diversity.
