Publication
Title
The reproductive behaviour of a clonal herbaceous plant, the long-leaved Sundew **Drosera intermedia** in different heatland habitats
Author
Abstract
The reproductive behaviour of the longleaved sundew Drosera intermedia Hayne was studied in three hydrologically differing heathland habitats: a pool edge, an old path through the wet heath and a seepage area. Sexual reproductive allocation (SRA) (the slope of thc regression of sexual on vegetative biomass in a given season) differed strongly between years (related to temperature and precipitation) and habitats. Averaged over years. path plants had a higher SRA than plants in the seepage area and at the pool edge. Asexual reproductive allocation. expressed as thc size-dependent probability of reproducing asexually, did not differ between habitats in most years. The observations agreed with general life history theory. SRA was high in the path habitat where adult survival chances were low and juvenile (= seed, first year seedling) survival was high. SRA was lower in the seepage area where adult survival chances were higher and juvenile survival lower. At the pool edge, a habitat with high adult mortality and low juvenile establishment, the predicted optimal reproductive behaviour, a high SRA, was not observed due to environmental constraints (inundation).
Language
English
Source (journal)
Ecography. - Copenhagen
Publication
Copenhagen : 1992
ISSN
0906-7590
Volume/pages
15:2(1992), p. 144-153
ISI
A1992JC91700002
UAntwerpen
Faculty/Department
Research group
Publication type
Subject
Affiliation
Publications with a UAntwerp address
External links
Web of Science
Record
Identification
Creation 08.10.2008
Last edited 24.07.2017
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