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  • Climate
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  • 1987  (4)
  • 1
    Electronic Resource
    Electronic Resource
    Mediterranean climate and geriatrics (1987)
    Springer
    Cellular and molecular life sciences 43 (1987), S. 57-63 
    Details
    ISSN: 1420-9071
    Keywords: Climate ; health ; human bioclimatology ; meteoropathology ; geriatrics ; Mediterranean area
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01940354
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    The 15N/14N ratios of plants in South Africa and Namibia: relationship to climate and coastal/saline environments (1987)
    Springer
    Oecologia 74 (1987), S. 236-246 
    Details
    ISSN: 1432-1939
    Keywords: Plants ; 15N/14N ratios ; Climate ; Coastal ; Saline
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Data are presented for the 15N/14N ratios of 140 indigenous terrestrial plants from a wide variety of natural habitats in South Africa and Namibia. Over much of the area, from high-rainfall mountains to arid deserts, the δ 15N values of plants lie typically in the range -1 to +6‰; with no evident differences between C3 plants and C4 grasses. There is a slight correlation between δ 15N and aridity, but this is less marked than the correlation between the δ 15N values of animal bones and aridity. At coastal or saline sites, however, the mean δ 15N values for plants are higher than those at nearby inland or non-saline sites-e.g.: arid Namib coast (10‰ higher than inland Namib); wet Natal beach (5‰ higher than inland Natal); saline soils 500 km from coast (4‰ higher than non-saline soils). High values were also found at one site where there were no marked coastal or saline influences. These environmental effects on the isotopic composition of plants will extend upwards to the animals and humans they support. They therefore have important consequences for the use of nitrogen isotope data in the study of the dietary habits and trophic structures of modern and prehistoric communities.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00379365
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Effects of clonal variation of the host plant, interspecific competition, and climate on the population size of a folivorous thrips (1987)
    Springer
    Oecologia 74 (1987), S. 298-303 
    Details
    ISSN: 1432-1939
    Keywords: Climate ; Clonal variation ; Community structure ; Herbivory ; Interspecific competition ; Plant-insect interactions ; Thrips
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary The effects of clonal variation, interspecific competition, and climate upon the population size of Apterothrips secticornis was assessed by a series of observations and experimental manipulations. Three clones of the host plant, Erigeron glaucus, consistently supported different numbers of thrips during monthly censuses. When rosettes of the three clones were transplanted to a common garden, relative numbers of thrips on the clones remained the same as those observed where the clones grew in situ. The presence or absence of other hervivores had no effect on thrips numbers in the common garden. Plume moth caterpillars and thrips were observed to co-occur less often than expected in the field but this was caused by differences in habitat selection by these two species rather than being the result of interspecific competition. Populations of thrips were affected by climate, but analyses suggest that the host clone was a more important factor.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00379373
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  • 4
    Electronic Resource
    Electronic Resource
    Climate and plant distribution at global and local scales (1987)
    Springer
    Plant ecology 69 (1987), S. 189-197 
    Details
    ISSN: 1573-5052
    Keywords: Climate ; Drought ; Frost resistance ; Gap ; Life-cycle ; Plant distribution ; Population dynamics ; Temperature
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract This paper investigates, with predictive models, the utility of ecophysiological responses to climate as predictors of plant distribution. At the global scale responses to extreme minimum temperatures and to the hydrological budget effectively predict the distribution limits of the major vegetation types of the World. A minimum temperature of -15°C, for example, appears critical in controlling the poleward spread of vegetation that is dominated by evergreen broadleaved species; however, the presence or absence of more frost resistant species, such as those that are deciduous broadleaved, is not obviously explained in terms of extremes of climate. In such cases, predicting the competitive relationships between species is necessary and dependent on the climatic sensitivity of population dynamics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00038700
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