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植物多样性（英文）
植物多样性（英文）

李德铢

双月刊

2096-2703

bianji@mail.kib.ac.cn

0871-65223032

650204

昆明市盘龙区蓝黑路132号中科院昆明植物研究所内

植物多样性（英文）/Journal Plant DiversityCSCD北大核心CSTPCDSCI
查看更多>>本刊是国家科委(79)国科发条字341号文批准创办的植物学专业学报，是中国科学院主管的全国性自然科学期刊。本刊1979年创刊，现已成为我国植物科学研究发表论文的主要学术性刊物之一。本刊属于中国生物学类科技核心期刊；中国自然科学核心期刊。主要刊登植物学各学科具有创新性或较高学术水平的原始论文和简报；植物学领域的新发现及重大应用价值的新成果快报；结合本人工作，反映本学科重要领域的国内外最新研究进展的综述等。本刊设有植物系统学与生物地理学、植物化学与化学生物学、生物多样性保护与民族植物学、植物生态学与资源管理、植物生理与分子生物学5个专栏。本刊已被国内外多家二次文献收录，现我刊已同30个国家和地区有发行和交换关系。
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    Strong evidence for latitudinal diversity gradient in mosses across the world

    Hong QianZun DaiJian Wang
    537-541页
    查看更多>>摘要：Species richness generally decreases with increasing latitude,a biodiversity gradient that has long been considered as one of the few laws in ecology.This latitudinal diversity gradient has been observed in many major groups of organisms.In plants,the latitudinal diversity gradient has been observed in vascular plants,angiosperms,ferns,and liverworts.However,a conspicuous latitudinal diversity gradient in mosses at a global or continental scale has not been observed until now.Here,we analyze a comprehensive data set including moss species in each band of 20° in latitude worldwide.Our results show that moss species richness decreases strongly with increasing latitude,regardless of whether the globe is considered as a whole or different longitudinal segments(e.g.,Old World versus New World)are considered separately.This result holds when variation in area size among latitudinal bands is taken into account.Pearson's correlation coefficient between latitude and species richness is-0.99 for both the Northern and Southern Hemispheres.Because bryophytes are an extant lineage of early land plants and because mosses not only include most of extant species of bryophytes but also are important constit-uents of most terrestrial ecosystems,understanding geographic patterns of mosses is particularly important.The finding of our study fills a critical knowledge gap.
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    Evaluating the relative importance of predictors in Generalized Additive Models using the gam.hp R package

    Jiangshan LaiJing TangTingyuan LiAiying Zhang...
    542-546页
    查看更多>>摘要：Generalized Additive Models(GAMs)are widely employed in ecological research,serving as a powerful tool for ecologists to explore complex nonlinear relationships between a response variable and pre-dictors.Nevertheless,evaluating the relative importance of predictors with concurvity(analogous to collinearity)on response variables in GAMs remains a challenge.To address this challenge,we developed an R package named gam.hp.gam.hp calculates individual R2 values for predictors,based on the concept of'average shared variance',a method previously introduced for multiple regression and canonical an-alyses.Through these individual R2s,which add up to the overall R2,researchers can evaluate the relative importance of each predictor within GAMs.We illustrate the utility of the gam.hp package by evaluating the relative importance of emission sources and meteorological factors in explaining ozone concentra-tion variability in air quality data from London,UK.We believe that the gam.hp package will improve the interpretation of results obtained from GAMs.
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    Comparative analysis shows high level of lineage sorting in genomic regions with low recombination in the extended Picea likiangensis species complex

    Hui ZhuWeixiao LeiQing LaiYongshuai Sun...
    547-550页
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      原文链接:
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