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Linkages among the functional traits,insect visitation rate and seed set of Gentiana taxa on the Tibetan Plateau

Journal of Mountain Science 2022年第8期19卷 2312-2321页

作者： DAI Wen-fei GAO Rui HE Meng-ying YANG Yu-lian LI Fang-lan MU Jun-peng Ecological Security and Protection Key Laboratory of Sichuan Province Mianyang Normal UniversityMianyang 621000China Key Laboratory of Mountain Ecological Restoration and Bioresource Utilization Chengdu Institute of BiologyChinese Academy of SciencesChengdu 610041China

Maximum plant height(H_(max)),stem tissue mass density(SD),leaf mass per area(LMA),and relative growth rate(RGR)have all been linked to flowering ***,it is still unknown whether these functional traits varying with flowering phenology are related to other floral traits associated with pollinator preference and reproductive *** investigated the relationship between vegetative and floral traits,as well as the rates of insect visitation and seed set of fiveGentiana species in eastern Tibetan *** results showed that flowering onset and flowering offset time were all found to be positively correlated with the H_(max),SD,and LMA,but negatively correlated with the *** onset time was positively correlated with corolla diameter and pollen grain number,whereas was negatively correlated with flower number and flower *** rates of insect visitation were positively related to flowering onset time,pollen grain number,corolla diameter,and seed set,but negatively related to flower number and *** flowering species have higher RGR but lower SD,LMA andH_(max),as well as smaller flowers,fewer pollen grains,longer flower longevity,and lower insect visitation rates than late-flowering plant *** findings indicate that floral traits are related to vegetative traits in Gentiana *** these plant trait relationships were associated with pollinator preference,and plant reproductive success of eastern Tibetan *** speculate that these traits relationships are likely adaptive in unpredictable and often pollinator-limited environments in the Tibet alpine meadows.

关键词： life history strategy Mating system Reproductive efficiency Alpine plant

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Perenniality:From model plants to applications in agriculture

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Molecular Plant 2024年第1期17卷 141-157页

作者： Bo Zhao Jia-Wei Wang National Key Laboratory of Plant Molecular Genetics CAS Center for Excellence in Molecular Plant Sciences(CEMPS)Institute of Plant Physiology and Ecology(SIPPE)Chinese Academy of Sciences(CAS)Shanghai 200032China School of life Science and Technology ShanghaiTech UniversityShanghai 201210China Key Laboratory of Plant Carbon Capture CASShanghai 200032China New Cornerstone Science Laboratory Shanghai 200032China

To compensate for their sessile nature,plants have evolved sophisticated mechanisms enabling them to adapt to ever-changing *** such prominent feature is the evolution of diverse life history strategies,particularly such that annuals reproduce once followed by seasonal death,while perennials live longer by cycling growth *** intrinsic phenology is primarily genetic and can be altered by environmental *** evolutionary transitions between annual and perennial life history strategies are common,perennials account for most species in nature because they survive well under year-round *** proportion,however,is reversed in ***,perennial crops promise to likewise protect and enhance the resilience of agricultural ecosystems in response to climate *** significant endeavors that have been made to generate perennial crops,progress is slow because of barriers in studying perennials,and many developed species await further *** findings in model species have illustrated that simply rewiring existing genetic networks can lead to lifestyle *** implies that engineering plant life history strategy can be achieved by manipulating only a few key *** this review,we summarize our current understanding of genetic basis of perenniality and discuss major questions and challenges that remain to be addressed.

关键词： perenniality developmental plasticity flowering time poplar Arabis alpina perennial crops life history strategy

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Multi-stemming strategies of Quercus glauca in an evergreen broad-leaved forest: when and where

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Journal of Plant Ecology 2020年第6期13卷 738-743页

作者： Mide Rao Duo Ye Jianhua Chen Jian Ni Xiangcheng Mi Mingjian Yu Keping Ma Johannes H.C.Cornelissen College of Chemistry and life Sciences Zhejiang Normal UniversityJinhua 321004China Department of Ecological Science Faculty of ScienceVrije Universiteit AmsterdamDe Boelelaan 10851081 HV AmsterdamThe Netherlands State Key Laboratory of Vegetation and Environmental Change Institute of BotanyChinese Academy of SciencesBeijing 100093China College of life Sciences Zhejiang UniversityHangzhou 310058China

Aims Multi-stemming supports plants’resilience to disturbances and then contributes to soil stabilization and forest function,especially in mountain *** questions remain about(i)the ontogenetic phase at which multiple stems can occur,(ii)how habitat drivers affect multi-stemming and(iii)whether ontogenetic phase and habitat drivers *** asked these questions for Quercus glauca(ring-cupped oak),the dominant species and sprouter across large warm-temperate areas of Asia;its multi-stemmed trees reflect individual survival,population regeneration and forest ecosystem *** In a 5-ha permanent plot of subtropical evergreen broad-leaved forest in eastern China,we examined the temporal patterns and spatial distribution of multi-stemmed trees of *** within 99 quadrats of 20 m×20 *** Findings There were three temporal modes for multi-stemming among the *** trees and most of them appeared to produce multiple stems from an early *** disturbances related to slope convexity appear to be the main drivers of multi-stemming of ***,the closer to the ridge,the earlier the multi-stemming ***,also for other woody species in other forests and climate zones,ontogeny and environmental drivers promoting disturbance(not only geomorphology,but also extreme weather events,soil drought,fire),as well as soil fertility,need to be considered in combination to better understand multi-stemming and its consequences for community structure.

关键词： life history strategy multi-stemmed trees ontogenetic phase persistence Quercus glauca topography

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Biomass Allocation of Scirpus mariqueter Along an Elevational Gradient in a Salt Marsh of the Yangtse River Estuary

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Acta Botanica Sinica 2001年第2期43卷 178-185页

作者：孙书存蔡永立刘红华东师范大学河口海岸国家重点实验室上海200062 华东师范大学环境科学系上海200062 曲阜师范大学地理系山东曲阜250041

Scirpus mariqueter Tang et Zhang is a typical pioneer plant colonizing the bare beaches of the Yangtse River estuary. To explore the life history strategy of the species with reference to environmental physical stress, the biomass allocations to different plant components and some related morphological parameters were examined along an elevational gradient within a salt marsh. Authors found that S. mariqueter performed best at medium elevation within the marsh, with relatively high density of shoot and individual ramet dry mass. Biomass allocation to corm was the highest at low elevations, and the least at high elevations, suggesting that a conservative strategy was adopted by the species to cope with the harsh physical conditions at the low elevation. The investment in rhizome decreased from low to high elevations, while the proportion of inflorescence mass increased, indicating that during the life history, the species shifts from predominant asexual reproduction to predominant sexual reproduction. This may be favourable for the species to colonize larger area, and to spread and persist at a meta_population level. Correlation analyses showed that sexual reproduction was inversely related to growth and asexual reproduction. However, it is difficult to determine the relationship between asexual reproduction and growth possibly because of the varied function of the corms of the species in different life history stages.

关键词： asexual reproduction corm salt marsh sexual reproduction life history strategy trade_off

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进化心理学视角中的腐败行为及心理机制

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心理学 2018年第7期 104-109页

作者：任亮宝田芊孙时进

腐败作为全世界普遍关注的焦点问题，不同领域学者针对腐败行为产生原因与对策进行探讨。普遍认为制度、权力、文化等因素是腐败行为产生的重要原因，个别研究涉及到腐败主体的内在心理。进化心理学从进化和适应的视角对人类行为发生及... 详细信息

腐败作为全世界普遍关注的焦点问题，不同领域学者针对腐败行为产生原因与对策进行探讨。普遍认为制度、权力、文化等因素是腐败行为产生的重要原因，个别研究涉及到腐败主体的内在心理。进化心理学从进化和适应的视角对人类行为发生及心理内在特征具有终极解释度。因此，本文在前人研究的基础上，基于进化心理学的独特视角，从个体生命史历程(如童年创伤、贫穷经历等)去揭示腐败行为产生的心理机制。

关键词：腐败行为进化心理学童年经历生命史策略 corruption evolutionary psychology childhood experience life history strategy

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