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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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    Reproductive height determines the loss of clonal grasses with nitrogen enrichment in a temperate grassland

    Xu ChenHaining LuZhengru RenYuqiu Zhang...
    256-264页
    查看更多>>摘要：Tall clonal grasses commonly display competitive advantages with nitrogen(N)enrichment.However,it is currently unknown whether the height is derived from the vegetative or reproductive module.Moreover,it is unclear whether the height of the vegetative or reproductive system regulates the probability of extinction and colonization,and determines species diversity.In this study,the impacts on clonal grasses were studied in a field experiment employing two frequencies(twice a year vs.monthly)crossing with nine N addition rates in a temperate grassland,China.We found that the N addition decreased species frequency and increased extinction probability,but did not change the species colo-nization probability.A low frequency of N addition decreased species frequency and colonization probability,but increased extinction probability.Moreover,we found that species reproductive height was the best index to predict the extinction probability of clonal grasses in N-enriched conditions.The low frequency of N addition may overestimate the negative effect from N deposition on clonal grass diversity,suggesting that a higher frequency of N addition is more suitable in assessing the ecological effects of N deposition.Overall,this study illustrates that reproductive height was associated with the clonal species extinction probability under N-enriched environment.
      原文链接:
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    Photosynthetic response dynamics in the invasive species Tithonia diversifolia and two co-occurring native shrub species under fluctuating light conditions

    Ju LiShu-Bin ZhangYang-Ping Li
    265-273页
    查看更多>>摘要：To determine the invasiveness of invasive plants,many studies have compared photosynthetic traits or strategies between invasive and native species.However,few studies have compared the photosynthetic dynamics between invasive and native species during light fluctuations.We compared photosynthetic induction,relaxation dynamics and leaf traits between the invasive species,Tithonia diversifolia and two native species,Clerodendrum bungei and Blumea balsamifera,in full-sun and shady habitats.The photosynthetic dynamics and leaf traits differed among species.T.diversifolia showed a slower induction speed and stomatal opening response but had higher average intrinsic water-use efficiency than the two native species in full-sun habitats.Thus,the slow induction response may be attributed to the longer stomatal length in T.diversifolia.Habitat had a significant effect on photosynthetic dynamics in T.diversifolia and B.balsamifera but not in C.bungei.In shady habitat,T.diversifolia had a faster photo-synthetic induction response than in full-sun habitat,leading to a higher average stomatal conductance during photosynthetic induction in T.diversifolia than in the two native species.In contrast,B.balsamifera had a larger stomatal length and slower photosynthetic induction and relaxation response in shady habitat than in full-sun habitat,resulting in higher carbon gain during photosynthetic relaxation.Nevertheless,in both habitats,T.diversifolia had an overall higher carbon gain during light fluctuations than the two native species.Our results indicated that T.diversifolia can adopt more effective response strategies under fluctuating light environments to maximize carbon gain,which may contribute to its successful invasion.
      原文链接:
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    Intraspecific floral colour variation in three Pedicularis species

    Qiu-Yu ZhangZhe ChenHang SunYang Niu...
    274-279页
    查看更多>>摘要：Flower constancy describes the phenomenon that pollinators tend to successively visit flowers of a single species during foraging,reducing reproductive interference in natural communities.The extent of flower constancy is largely determined by the floral traits of co-flowering species.Both higher inter-specific and lower intraspecific differences of floral traits should contribute to a higher level of flower constancy.However,previous studies mainly focused on interspecific difference,and the intraspecific variation(consistency)of floral traits received much less attention.We hypothesise that selection may favour lower intraspecific floral trait variation in communities composed of multiple co-flowering congeners.We investigated the floral colour variation of three focal Pedicularis species that share pollinators in 19 communities composed of either single or multiple Pedicularis species.Colour was quantified using image-based colour analysis as perceived by pollinators.We found that most of the intrapopulation floral colour variation was below the colour discrimination threshold of bumblebees,implying strongly con-strained by the visual selection by pollinators.Contrary to the hypothesis,there is no significant dif-ference in intraspecific floral colour variation between different community contexts.It may be due to the relatively large interspecific floral colour differences of most co-flowering species.The influence of community context on intraspecific variation may be reflected in floral traits other than colours.
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    pyIFPNI:A package for querying and downloading plant fossil data from the IFPNI

    Bailong Zhao
    280-282页
      原文链接:
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    • NSTL
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