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Variation in Plant Functional Traits along Altitudinal Gradient and Land Use Types in Sagarmatha National Park and Buffer Zone, Nepal

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American Journal of Plant Sciences 2019年第4期10卷 595-614页

作者： Srijana Shah Krishna Kumar Shrestha christoph scheidegger Department of Plant Resources National Botanical Garden Kathmandu Nepal Central Department of Botany Tribhuvan University Kathmandu Nepal Ethnobotanical Society of Nepal (ESON) Kathmandu Nepal Swiss Federal Institute of Forest Snow and Landscape Research (WSL) Birmensdorf Switzerland

Functional traits are predictors of plants in response to environmental stimuli. They represent specific functional adaptations to various environmental stresses. This study deals with the variation in plant functional traits along elevation gradient and land-use types in Sagarmatha National Park and Buffer Zone, Nepal. Two field investigations in April and September, 2011 were made to collect samples. Sampling was done from 2200 - 3800 m asl varying approx. 400 m. East and west facing aspects of each valley were chosen. In each aspect four land-use type categories including disturbed (cultivated land, exploited forest and meadow) and less disturbed natural forest were selected. A transect of 25 m long and 2.5 m wide was laid. Different eight traits of plants including lifeform, plant height, clonality, spinescence, leaf dry matter content, stem specific density, twig dry matter content and twig drying time were examined for 60 plant species belonging to 31 families, collected from 40 sampled plots. Nine different types of growth forms were recorded. Plant height of the investigated species ranged from 0.03 - 15 m. The stolon consisting species were dominant in exploited forests. Diversity of clonal species was more in meadow and non-clonal species were dominant in all the altitudes. Only eight species consisted of spines. In the disturbed land-use categories, we found high variation in a particular trait. Correlation analyses revealed the significant relationship (p < 0.01) among different traits. Herbs and shrubs were dominant at higher elevation and in disturbed land-use categories. Species from high altitude were mostly short basal herbs, while spinescence and tall trees were observed at lower altitudes. Species recorded in meadows and exploited forests showed high variation in traits due to disturbance mainly grazing, fire, litter collection and trampling. Altitudinal variation, climatic conditions and disturbance most strongly influence trait expression in the

关键词： Functional Traits Altitudinal Gradient Land-Use Types Disturbances

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Ecometrics:The traits that bind the past and present together

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Integrative Zoology 2010年第2期5卷 88-101页

作者： Jussi T.ERONEN P.David POLLY Marianne FRED John DAMUTH David C.FRANK Volker MOSBRUGGER christoph scheidegger Nils Chr.STENSETH Mikael FORTELIUS Department of Geosciences and Geography Helsinki UniversityFinland Department of Geological Sciences Indiana UniversityUSA ARONIA Research Institute atÅbo Akademi University and Novia University of Applied SciencesCoastal Zone Research TeamEkenäFinland Department of Ecology Evolution and Marine BiologyUniversity of CaliforniaSanta BarbaraCaliforniaUSA Swiss Federal Research Institute WSL BirmensdorfSwitzerland Senckenberg Natural History Museum and Research Institute FrankfurtGermany Centre for Ecological and Evolutionary Synthesis(CEES) Department of BiologyUniversity of OsloOsloNorway

We outline here an approach for understanding the biology of climate change,one that integrates data at multiple spatial and temporal ***-free trait analysis,or“ecometrics,”is based on the idea that the distribution in a community of ecomorphological traits such as tooth structure,limb proportions,body mass,leaf shape,incubation temperature,claw shape,any aspect of anatomy or physiology can be measured across some subset of the organisms in a *** of temporal or spatial scale,traits are the means by which organisms interact with their environment,biotic and *** measures these interactions by focusing on traits which are easily measurable,whose structure is closely related to their function,and whose function interacts directly with local *** trait distributions are thus a comparatively universal metric for exploring systems dynamics at all *** main challenge now is to move beyond investigating how future climate change will affect the distribution of organisms and how it will impact ecosystem services and to shift the perspective to ask how biotic systems interact with changing climate in general,and how climate change affects the interactions within and between the components of the whole biotic-physical *** believe that it is possible to provide believable,quantitative answers to these *** of this we have initiated an IUBS program iCCB(integrative Climate Change Biology).

关键词： community structure ecometrics integrative Climate Change Biology Taxon-free trait distribution

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中国横断山地区蓝藻型肺衣属地衣的三个新种(英文)

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菌物学报 2018年第7期37卷 838-848页

作者：苗丛丛王欣宇克里斯托夫·斯盖革王立松赵遵田山东师范大学生命科学学院山东济南250014 中国科学院昆明植物研究所东亚植物多样性与生物地理学重点实验室云南昆明650201 瑞士联邦森林、雪与景观研究所瑞士苏黎世8903

在形态和化学研究的基础上,结合分子生物学研究方法(ITS片段),对中国横断山地区的830号与蓝细菌共生的肺衣属标本进行了分类学研究,共发现3个新种;其中,横断山肺衣***的主要特征是具粉芽化裂芽,无脊肺衣***的网脊不明显,以及宽叶肺衣**... 详细信息

在形态和化学研究的基础上,结合分子生物学研究方法(ITS片段),对中国横断山地区的830号与蓝细菌共生的肺衣属标本进行了分类学研究,共发现3个新种;其中,横断山肺衣***的主要特征是具粉芽化裂芽,无脊肺衣***的网脊不明显,以及宽叶肺衣***的裂片顶端宽且钝圆;3个种在ITS系统发育树上分别形成独立小枝。文中提供了中国肺衣属中与蓝细菌共生的物种检索表。

关键词：地衣型真菌分类学系统发育

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