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  • 1
    Electronic Resource
    Electronic Resource
    Interactions in the patterns of vegetative growth and reproduction in woody dioecious plants (1984)
    Springer
    Oecologia 61 (1984), S. 109-114 
    Details
    ISSN: 1432-1939
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Interactions between vegetative growth and reproduction were evaluated in Peumus boldus, Lithraea caustica and Laretia acaulis, three woody dioecious species in central Chile. Phenological observations were made periodically on marked branches of male and female plants, and biomass allocation (dry weight) to vegetative and reproductive tissues was measured. The magnitude of flowering was evaluated in groups of plants in three successive seasons. The patterns of activities are species- and sex-dependent, and cycles of 2–4 years have been established. Branches that produce flowers either do not grow or grow less than branches without flowers, and males and females have differential resource allocation: male branches attain higher biomass values. Groups of plants show seasonal behavior that suggest synchrony in their reproductive activities.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00379095
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Plants intruding Laretia acaulis (Umbelliferae), a high Andean cushion plant (1985)
    Springer
    Plant ecology 60 (1985), S. 151-156 
    Details
    ISSN: 1573-5052
    Keywords: Andes ; Cushion plant ; Intruding plants ; Laretia acaulis ; Life form
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Several plants invade the cushions of Laretia acaulis in the high Andean communities of central Chile. Humus develops among the rosettes, and 42 different species settle on the cushions. Most of these species are also found outside the cushions. Semi-woody chamaephytes, hemicryptophytes and cryptophytes have a similar cover on both substrates, while the cover of woody chamaephytes and therophytes is smaller on the cushions. The diversity and cover of invading plants, which vary with altitude, result from interactions among the environmental conditions, cushion morphology and the surrounding vegetation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00039932
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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