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  • 1
    Online Resource
    Online Resource
    Cham :Springer International Publishing :
    Keywords: Ecology . ; Botany. ; Physical geography. ; Conservation biology. ; Ecology. ; Plant Science. ; Earth System Sciences. ; Conservation Biology.
    Description / Table of Contents: PRELIMINARY (ToC of second edition) 1 Plant ecology at high elevations -- The concept of limitation -- A regional and historical account -- The challenge of alpine plant research -- 2 The alpine life zone -- Altitudinal boundaries -- Global alpine land area -- Alpine plant diversity -- Origin of alpine floras -- Alpine growth forms -- 3 Alpine climate -- Which alpine climate -- Common features of alpine climates -- Regional features of alpine climates -- 4 The climate plants experience -- Interactions of relief, wind and sun -- How alpine plants influence their climate -- The geographic variation of alpine climate -- 5 Life under snow: protection and limitation -- Temperatures under snow -- Solar radiation under snow -- Gas concentrations under snow -- Plant responses to snowpack -- 6 Alpine soils -- Physics of alpine soil formation -- The organic compound -- The interaction of organic and inorganic compounds -- 7 Alpine treelines -- About trees and lines -- Current altitudinal positions of climatic treelines -- Treeline-climate relationships -- Intrazonal variations and pantropical plateauing of alpine treelines -- Treelines in the past -- Attempts at a functional explanation of treelines -- A hypothesis for treeline formation -- Growth trends near treelines -- Evidence for sink limitation -- 8 Climatic stress -- Survival of low temperature extremes -- Avoidance and tolerance of low temperature extremes -- Heat stress in alpine plants -- Ultraviolet radiation — a stress factor -- 9 Water relations -- Ecosystem water balance -- Soil moisture at high altitudes -- Plant water relations — a brief review of principles -- Water relations of alpine plants -- Desiccation stress -- Water relations of special plant types -- 10 Mineral nutrition -- Soil nutrients -- The nutrient status of alpine plants -- Nutrient cycling and nutrient budgets -- Nitrogen fixation -- Mycorrhiza -- Responses of vegetation to variable nutrient supply -- 11 Uptake and loss of carbon -- Photosynthetic capacity of alpine plants -- Photosynthetic responses to the environment -- Daily carbon gain of leaves -- The seasonal carbon gain of leaves -- C4 and CAM photosynthesis at high altitudes -- Tissue respiration of alpine plants -- Ecosystem carbon balance -- 12 Carbon investments -- Non-structural carbohydrates -- Lipids and energy content -- Carbon costs of leaves and roots -- Whole plant carbon allocation -- 13 Growth dynamics and phenology -- Seasonal growth -- Diurnal leaf extension -- Rates of plant dry matter accumulation -- Functional duration of leaves and roots -- 14 Cell division and tissue formation -- Cell size and plant size -- Mitosis and the cell cycle -- From meristem activity to growth control -- 15 Plant biomass production -- The structure of alpine plant canopies -- Primary productivity of alpine vegetation -- Plant dry matter pools -- Biomass losses through herbivores -- 16 Plant reproduction -- Flowering and pollination -- Seed development and seed size -- Germination -- Alpine seed banks and natural recruitment -- Clonal propagation -- Alpine plant age -- Community processes -- 17 Global change at high elevation -- Alpine land use -- The impact of altered atmospheric chemistry -- Climatic change and alpine ecosystems -- References (with chapter annotation) -- Taxonomic index (genera) -- Geographical index -- Color plates -- Plant life forms -- The alpine life zone -- Environmental stress -- The human dimension.
    Abstract: This book is a completely revised, substantially extended treatment of the physical and biological factors that drive life in high mountains. The book covers the characteristics of alpine plant life, alpine climate and soils, life under snow, stress tolerance, treeline ecology, plant water, carbon, and nutrient relations, plant growth and productivity, developmental processes, and two largely novel chapters on alpine plant reproduction and global change biology. The book explains why the topography driven exposure of plants to dramatic micro-climatic gradients over very short distances causes alpine biodiversity to be particularly robust against climatic change. Geographically, this book draws on examples from all parts of the world, including the tropics. This book is complemented with novel evidence and insight that emerged over the last 17 years of alpine plant research. The number of figures – mostly in color – nearly doubled, with many photographs providing a vivid impression of alpine plant life worldwide. Christian Körner was born in 1949 in Austria, received his academic education at the University of Innsbruck, and was full professor of Botany at the University of Basel from 1989 to 2014. As emeritus Professor he is continuing alpine plant research in the Swiss Alps.
    Type of Medium: Online Resource
    Pages: XIX, 500 p. 319 illus., 283 illus. in color. , online resource.
    Edition: 3rd ed. 2021.
    ISBN: 9783030595388
    DDC: 577
    Language: English
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  • 2
    Call number: PIK N 531-95-0166
    In: Ecological studies
    Type of Medium: Monograph available for loan
    Pages: 332 p.
    ISBN: 3540579486
    Series Statement: Ecological studies 113
    Location: A 18 - must be ordered
    Branch Library: PIK Library
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  • 3
    Call number: 9783034803960 (e-book)
    Type of Medium: 12
    Pages: 1 Online-Ressource (XI, 220 Seiten) , Illustrationen
    ISBN: 9783034803960 (e-book) , 978-3-0348-0396-0
    Language: English
    Note: Contents 1 High elevation treelines 1.1 The task 1.2 Previous works 2 Definitions and conventions 2.1 The life form ‘tree’ 2.2 Lines and transitions 2.3 Limitation, stress and disturbance 2.4 Altitude-related and other environmental drivers 2.5 Treeline nomenclature 3 Treeline patterns 3.1 Treeline taxa 3.2 The summit syndrome and other treeline depressions 3.3 Mass elevation effect 3.4 Treeline elevation 3.5 Time matters 3.6 Forest structure near treeline 4 Treeline climate 4.1 Specific aspects of treeline climatology 4.2 Criteria to define temperature regimes at treeline 4.3 Treeline temperatures in different bioclimatic regions 4.3.1 Subarctic and boreal zone (45–68° N) 4.3.2 Cool temperate zone (45–47° N, 44° S) 4.3.3 Warm temperate zone (28–42° N, 36° S) 4.3.4 Subtropical zone (19° S, 19° N) 4.3.5 Equatorial tropics (6° N to 3° S) 4.3.6 Mediterranean ‘treelines’ (38–42° N) 4.3.7 The Nothofagus and Metrosideros case 4.3.8 Treeline temperatures across bioclimatic zones 4.4 Seedbed and branch temperatures 4.5 Whole forest temperatures 5 Global mountain statistics based on treeline elevation 5.1 Mountain geostatistics 5.2 Elevational belts 5.3 Global treeline ecotones 6 Structure and stature of treeline trees 6.1 Foliage properties 6.2 Wood properties 6.3 Bark properties 6.4 Root traits 6.5 Tree stature 6.6 Dry matter allocation in treeline trees 7 Growth and development 7.1 Tree growth near the treeline 7.1.1 In situ growth of seedlings 7.1.2 In situ growth of saplings and adult trees 7.2 Xylogenesis at the treeline 7.2.1 In situ cambial activity 7.2.2 Apical growth dynamics 7.3 Root growth 7.4 Phenology at the treeline 8 Evolutionary adjustments to life at the treeline 8.1 Phylogenetic selection 8.2 Genotypic responses of growth and development 8.3 Genotypic responses of physiological traits 9 Reproduction, early life stages and tree demography 9.1 Amount and quality of seeds at high elevation 9.2 Germination, seedling and sapling stage 9.3 Tree demography at the treeline 10 Freezing and other forms of stress 10.1 Stress at the treeline in a fitness context 10.2 Mechanisms and principles of freezing resistance 10.3 Freezing resistance in treeline trees 10.4 Other forms of stress at the treeline 10.4.1 Freeze-thaw cycles and hydraulic failure 10.4.2 Winter desiccation 11 Water, nutrient and carbon relations 11.1 Tree water relations during the growing season 11.2 Nutrient relations 11.3 Carbon relations 12 Treeline formation - currently, in the past and in the future 12.1 Causes of current treelines 12.2 Treelines in the recent past 12.3 Treelines in the distant past (Holocene) 12.4 Treelines in the future References Subject Index Taxonomic Index
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  • 4
    Monograph available for loan
    Monograph available for loan
    Berlin [u.a.] : Springer
    Call number: PIK N 630-09-0248
    Type of Medium: Monograph available for loan
    Pages: IX, 338 S. : Ill., graph. Darst.
    ISBN: 3540654380
    Location: A 18 - must be ordered
    Branch Library: PIK Library
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  • 5
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 435 (2005), S. 413-413 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Sir George Monbiot and the other authors of the Correspondence letter “Time to speak up for climate-change science” (Nature 434, 559; 200510.1038/434559a) call on climate scientists to defend the ...
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Science Ltd
    Global change biology 8 (2002), S. 0 
    ISSN: 1365-2486
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology , Energy, Environment Protection, Nuclear Power Engineering , Geography
    Notes: Climbing plants have profound influences on tropical forest dynamics and may take particular advantage from atmospheric CO2 enrichment, thus potentially enhancing tree turnover. Here we test the effect of a four-step CO2-enrichment on growth of three typical Yucatan (Mexico) climbers, across two low photon flux densities, representing typical understory situations. In pairs of two, species of Gonolobus (Asclepiadaceae), Ceratophytum (Bignoniaceae) and Thinouia (Sapindaceae) were grown on Yucatan forest soil in growth cabinets, which simulated the diurnal climate variation. Biomass increased non-linearly in response to CO2 enrichment from 280 (preindustrial) to 420 ppm and 560 ppm, but then (700 ppm) leveled off. The relative effect of CO2-enrichment between the two lower (280–420 ppm) CO2 concentrations was 63% at low light (LL == 42 µmol m2−2 s2−1), compared to 37% at high light (HL = 87 µmol m2−2 s2−1). This overall response of species pairs was the combined effect of linear and non-linear responses of the individual species across CO2 treatments. Plant biomass was 61% larger in HL compared to LL. The species-specific response depended on the neighbor, a species grew with h, irrespective of plant size. Stem length increased, but not consistently across species and light conditions. Specific stem length (SSL, length per dry mass) declined non-linearly in all three species as CO2 concentration increased (more pronounced at LL than at HL). SLA (leaf area per unit leaf dry mass) became lower as CO2 concentration increased (more pronounced in HL). Enhanced vigor of climbers under elevated CO2 as documented here may accelerate tropical forest dynamics and lead to greater abundance of early succesional tree species. This could reduce forest carbon stocking in the long run.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Science Ltd
    Global change biology 3 (1997), S. 0 
    ISSN: 1365-2486
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology , Energy, Environment Protection, Nuclear Power Engineering , Geography
    Notes: Rising concentrations of atmospheric carbon dioxide have been predicted to stimulate the growth of forest trees. However, long-term effects on trees growing to maturity and to canopy closure while exposed to elevated CO2 have never been examined. We compared tree ring chronologies of Mediterranean Quercus ilex which have been continuously exposed to elevated CO2 (around 650 μmol mol–1) since they were seedlings, near two separate natural CO2 springs with those from trees at nearby ambient-CO2‘control’ sites. Trees grown under high CO2 for 30 years (1964–93) showed a 12% greater final radial stem width than those growing at the ambient-CO2 control sites. However, this stimulation was largely due to responses when trees were young. By the time trees were 25–30 y old the annual difference in tree ring width between low and high CO2 grown trees had disappeared. At any given tree age, elevated CO2 had a relatively greater positive effect on tree ring width in years with a dry spring compared to years with more rainfall between April and May. This indicates a beneficial effect of elevated CO2 on tree water relations under drought stress. Our data suggest that the early regeneration phase of forest stands can be accelerated in CO2-enriched atmospheres and that maximum biomass per land area may be reached sooner than under lower CO2 concentrations. In our study, high CO2 grown Q. ilex trees reached the same stem basal area at the age of 26 y as control trees at 29 y, i.e. three years earlier (faster turnover of carbon?). Reliable predictions of the future development of forests need to account for the variable responses of trees over their entire lifetime. Such responses to elevated CO2 can presently only be assessed at such unique field sites.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Global change biology 2 (1996), S. 0 
    ISSN: 1365-2486
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology , Energy, Environment Protection, Nuclear Power Engineering , Geography
    Notes: Atmospheric carbon dioxide enrichment and increasing nitrogen deposition are often predicted to increase forest productivity based on currently available data for isolated forest tree seedlings or their leaves. However, it is highly uncertain whether such seedling responses will scale to the stand level. Therefore, we studied the effects of increasing CO2 (280, 420 and 560 μL L-1) and increasing rates of wet N deposition (0, 30 and 90 kg ha-1 y-1) on whole stands of 4-year-old spruce trees (Picea abies). One tree from each of six clones, together with two herbaceous understory species, were established in each of nine 0.7 m2 model ecosystems in nutrient poor forest soil and grown in a simulated montane climate for two years. Shoot level light-saturated net photosynthesis measured at growth CO2 concentrations increased with increasing CO2, as well as with increasing N deposition. However, predawn shoot respiration was unaffected by treatments. When measured at a common CO2 concentration of 420 μL L-1 37% down-regulation of photosynthesis was observed in plants grown at 560 μL CO2 L-1. Length growth of shoots and stem diameter were not affected by CO2 or N deposition. Bud burst was delayed, leaf area index (LAI) was lower, needle litter fall increased and soil CO2 efflux increased with increasing CO2. N deposition had no effect on these traits. At the ecosystem level the rate of net CO2 exchange was not significantly different between CO2 and N treatments. Most of the responses to CO2 studied here were nonlinear with the most significant differences between 280 and 420 μL CO2 L-1 and relatively small changes between 420 and 560 μL CO2 L-1. Our results suggest that the lack of above-ground growth responses to elevated CO2 is due to the combined effects of physiological down-regulation of photosynthesis at the leaf level, allometric adjustment at the canopy level (reduced LAI), and increasing strength of below-ground carbon sinks. The non-linearity of treatment effects further suggests that major responses of coniferous forests to atmospheric CO2 enrichment might already be under way and that future responses may be comparatively smaller.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Science Ltd
    Global change biology 9 (2003), S. 0 
    ISSN: 1365-2486
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology , Energy, Environment Protection, Nuclear Power Engineering , Geography
    Notes: In diverse plant communities the relative contribution of species to community biomass may change considerably in response to elevated CO2. Along with species-specific biomass responses, reproduction is likely to change as well with increasing CO2 and might further accelerate shifts in species composition. Here, we ask if, after 5 years of CO2 exposure, seed production and seed quality in natural nutrient-poor calcareous grassland are affected by elevated CO2 (650 μL L−1 vs 360 μL L−1) and how this might affect long-term community dynamics. The effect of elevated CO2 on the number of flowering shoots (+ 24%, P 〈 0.01) and seeds (+ 29%, P = 0.06) at the community level was similar to above ground biomass responses in this year, suggesting that the overall allocation to sexual reproduction remained unchanged. Compared among functional groups of species we found a 42% increase in seed number (P 〈 0.01) of graminoids, a 33% increase (P = 0.07) in forbs, and no significant change in legumes (− 38%, n.s.) under elevated CO2. Large responses particularly of two graminoid species and smaller responses of many forb species summed up to the significant or marginally significant increase in seed number of graminoids and forbs, respectively. In several species the increase in seed number resulted both from an increase in flowering shoots and an increase in inflorescence size. In most species, seeds tended to be heavier (+ 12%, P 〈 0.01), and N-concentration of seeds was significantly reduced in eight out of 13 species. The fraction of germinating seeds did not differ between seeds produced in ambient and elevated CO2, but time to germination was significantly shortened in two species and prolonged in one species when seeds had been produced in elevated CO2. Results suggest that species specific increases in seed number and changes in seed quality will exert substantial cumulative effects on community composition in the long run.
    Type of Medium: Electronic Resource
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  • 10
    ISSN: 1546-1718
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Medicine
    Notes: [Auszug] Congenital disorders of glycosylation (CDG) comprise a rapidly growing group of inherited disorders in which glycosylation of glycoproteins is defective due to mutations in genes required for the assembly of lipid-linked oligosaccharides, their transfer to nascent glycoproteins (CDG-I) or the ...
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