Field evidence of plastic growth responses to habitat heterogeneity in the clonal herbRanunculus repens
- Stephen Waite
- … show all 1 hide
Rent the article at a discountRent now
* Final gross prices may vary according to local VAT.Get Access
Stolon internode lengths were measured on plants of the clonal herbRanunculus repens growing in a hay meadow which was subject to disturbance by mole (Talpa europaea) activity. Within the site three habitat types were recognized: closed grassland, the open ground of fresh molehills and the grass-molehill boundary. The lengths of stolon internodes ofR. repens differed significantly in each of the three habitats. The shortest internodes occurred on stolons on the open molchills. The longest occurred in the closed grassland habitat. The type of habitat in which parent ramets were rooted did not significantly influence the length of internodes on their daughter stolons. The length of a stolon internode was determined by its immediate surrounding habitat type. Consecutive internode lengths on a given stolon showed considerable plasticity, shortening significantly as stolons spread onto molehills from surrounding habitats, and increasing significantly as stolons advanced from a molehill into the surrounding closed grassland habitat. These results are consistent with the proposition that under favorable conditions (on the molehills, where resources are expected to be more abundant, and competition absent) internode lengths shorten and the plant forages intensively, whereas under conditions of low resource availability (in the closed grassland, where competition occurs) internode lengths increase, allowingR. repens to forage extensively. Such morphological plasticity may promote more efficient exploitation of resource-rich sites and more rapid vacation of resource-poor sites.
- Cook R. E. (1985). Growth and development in clonal plant populations. In:Population Biology and Evolution of Clonal Organisms (eds J. B. C. Jackson, L. W. Buss & R. E. Cook) pp. 259–296. Yale University Press, New Haven.
- Darlington A. &Brown A. L. (1975)One Approach to Ecology. Longman, London.
- Devore J. L. (1982)Probability and Statistics for Engineering and the Sciences. Brooks/Cole Publishing, Monterey.
- Elton C. S. (1966)The Pattern of Animal Communities. Methuen & Co. Ltd, London.
- Ginzo H. D. &Lovell P. H. (1973) Aspects of the comparative physiology ofRanunculus bulbosus L. andRanunculus repens L. I. Response to nitrogen.Annals of Botany.37, 753–764.
- Grime J. P., Crick J. C., &Rincon J. E. (1986) The ecological significance of plasticity. In:Plasticity in Plants (eds D. H. Jennings & A. J. Trewavas) pp. 5–29. Biologists Limited, Cambridge.
- Harper J. L. (1977)The Population Biology of Plants. Academic Press, London.
- Harper J. L. (1985) Modules, branches and the capture of resources. In:Population Biology and Evolution of Clonal Organisms (eds J. B. C. Jackson, L. W. Buss & R. E. Cook) pp. 1–33. Yale University Press, New Haven.
- Harper J. L. &Bell A. D. (1979) The population dynamics of growth form in organisms with modular construction. In:Population Dynamics (eds R. M. Anderson, B. M. Turner & L. R. Taylor) pp. 29–52. 20th Symposium of British Ecological Society. Blackwell Scientific Publications, Oxford.
- Hutchings M. J. (1988) Differential foraging for resources and structural plasticity in plants.Trends in Ecology and Evolution 3, 200–204. CrossRef
- Hutchings M. J. &de Kroon H. (1994) Foraging in plants: The role of morphological plasticity in resource acquisition.Advances in Ecological Research 25, 159–238.
- Hutchings M. J. &Mogie M. (1990) The spatial structure of clonal plants: Control and consequences. In:Clonal Growth in Plants: Regulation and Function. (eds J. van Groenendael & H. de Kroon) pp. 57–76. SPB Academic Publishers, The Hague.
- Hutchings M. J. &Slade A. J. (1988) Morphological plasticity, foraging and integration in clonal perennial herbs. In:Plant Population Ecology (eds A. J. Davy, M. J. Hutchings & A. R. Watkinson) pp. 83–119. 28th Symposium of the British Ecological Society. Blackwell Scientific Publications, Oxford.
- Hutchings M. J. & Turkington R. (1994). Plasticity of branching patterns in clonal herbs.Proceedings of the 5th International Symposium of Plant Biosystematics (in press).
- Jalloq M. C. (1975) The invasion of molehills by weeds as a possible factor in the degeneration of reseeded pasture. I. The buried viable seed population of molehills from reseeded pastures in west Wales.Journal of Applied Ecology 12, 643–657.
- Lovett Doust L. (1981a) Population dynamics and local specialization in a clonal perennial (Ranunculus repens). I. The dynamics of ramets from contrasting habitats.Journal of Ecology 69, 743–755.
- Lovett Doust L. (1981b) Population dynamics and local specialization in a clonal perennial (Ranunculus repens). II. The dynamics of leaves and a reciprocal transplant-replant experiment.Journal of Ecology 69, 757–768
- Lovett Doust L. (1981c) Intraclonal variation and competition inRanunculus repens.New Phytologist 89, 495–502.
- Lovett Doust L. (1987) Population dynamics and local specialization in a clonal perennial (Ranunculus repens). III. Responses to light and nutrient supply.Journal of Ecology 75, 555–568.
- Oborny B. (1991) Criticisms on optimal foraging in plants: A review.Abstracts of Botany 15, 67–76.
- Schmid B. (1990) Some ecological and evolutionary consequences of modular organization and clonal growth in plants.Evolutionary Trends in Plants 4, 25–34.
- Slade A. J. &Hutchings M. J. (1987a). The effects of nutrient availability on foraging in the clonal herbGlechoma hederacea.Journal of Ecology 75, 95–112.
- Slade A. J. &Hutchings M. J. (1987b). The effects of light intensity on foraging in the clonal herb.Glechoma hederacea. Journal of Ecology 75, 639–650.
- Slade A. J. &Hutchings M. J. (1987c). Clonal integration and plasticity in foraging behaviour inGlechoma hederacea.Journal of Ecology 75, 1023–1036.
- Sutherland W. J. &Stillman R. A. (1988) The foraging tactics of plants.Oikos 52, 239–244
- Wallwork J. A. (1970)Ecology of Soil Animals. McGraw-Hill, Maidenhead.
- Field evidence of plastic growth responses to habitat heterogeneity in the clonal herbRanunculus repens
Volume 9, Issue 3 , pp 311-316
- Cover Date
- Print ISSN
- Online ISSN
- Additional Links
- Clonal growth
- Ranunculus repens
- Stephen Waite (1)
- Author Affiliations
- 1. Biology and Ecology Section, Department of Pharmacy, University of Brighton, Moulsecoomb, BN2 4GJ, Brighton, Sussex, UK