Journal ArticleDOI
Growth Rates and Population Rejuvenation of East African Giant Groundsels (Dendrosenecio keniodendron)
TLDR
The rate of stem elongation was found to be dependent on the age of the plants, and the growth rate nearly doubles subsequent to the first anthesis and then falls off with increasing age.About:
This article is published in Flora.The article was published on 1984-01-01. It has received 14 citations till now. The article focuses on the topics: Population.read more
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Alpine plant life
TL;DR: In this article, a taxonomic index (genera) of alpine plants is presented, with a brief review of water relations and water relations of alpin plants in the alpine life zone.
Journal ArticleDOI
Tropical alpine plant ecology
Alan P. Smith,Truman P. Young +1 more
TL;DR: The lower limit of the tropical alpine habitat is poorly defined both in areas where human disturbance has lowered or eliminated treeline (as in some parts of the Andes and Papua New G(uinea); and in very dry areas where treeline forest is naturally lacking.
Journal ArticleDOI
Carbon dioxide assimilation and stomatal response of afroalpine giant rosette plants
TL;DR: Maximal rates of CO2 assimilation were measured for Dendrosenecio keniodendron, D. brassica, Lobelia telekii and L. keniensis during the day in the natural habitat of these plants at 4,200 m elevation on Mt. Kenya, with a calculated stomatal limitation for CO2 diffusion of 42%.
Journal ArticleDOI
Global climate change and local disturbance regimes as interacting drivers for shifting altitudinal vegetation patterns
Anke Jentsch,Carl Beierkuhnlein +1 more
TL;DR: In this article, the authors show that Globale Klimaveranderungen and lokale Storungsregime als interagierende Steuergrosen sich verschiebender hohenzonaler Vegetationsmuster klimaverandungen werden im kommenden Jahrhundert eine wesentliche Steueergrose fur Okosystementwicklungen sein.
Journal ArticleDOI
Giant rosette plant morphology as an indicator of recent fire history in Andean páramo grasslands
TL;DR: Dead leaf cover on the stems successfully predicted time since fire in four sites of known fire age and Espeletia does represent a useful indicator of fire history but requires calibration to account for local growth rates.
References
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Journal ArticleDOI
A portable steady-state porometer for measuring the carbon dioxide and water vapour exchanges of leaves under natural conditions.
TL;DR: A portable porometer is described for measuring the steady-state CO2 and H2O exchange rates of leaves under natural conditions and may also be used to determine CO2 response curves in the field.
Journal ArticleDOI
The cost of reproduction in Senecio keniodendron, a giant rosette species of Mt. Kenya.
TL;DR: It is demonstrated that individuals which reproduce are more likely to die, and less likely to reproduce in the future if they do survive, than are vegetative individuals of the same size.
Journal ArticleDOI
Estimation of Leaf and Stem Growth of Unbranched Senecio keniodendron Trees
TL;DR: An attempt was made to estimate leaf growth rates of the afroalpine giant rosette plant Senecio keniodendron Fries et Fries growing at an altitude of about 4,100 m on the northwestern slope of Mt. Kenya.
Journal ArticleDOI
Growth Rate of the East African Giant Senecios
TL;DR: A group of peculiar giant groundsels, characterized by sparsely sympodially branched woody stems crowned by huge leaf rosettes, each of which finally produces a large terminal inflorescence, are found on the high East African mountains.
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Growth, death and size distribution change in an impatiens pallida population
Sean C. Thomas,Jacob Weiner +1 more