TILLER DEMOGRAPHY IN SEASHORE POPULATIONS OF AGROSTIS-STOLONIFERA, FESTUCA-RUBRA AND POA-IRRIGATA

被引：28

作者：

JONSDOTTIR, GA

机构：

[1] Department of Botany, University of Stockholm, Stockholm

来源：

JOURNAL OF VEGETATION SCIENCE | 1991年 / 2卷 / 01期

关键词：

BALTIC; CLONE; DEMOGRAPHY; POPULATION DYNAMICS;

D O I：

10.2307/3235900

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

The dynamics of tillers in natural populations of three cohabiting perennial grass species. Agrostis stolonifera, Festuca rubra and Poa irrigata (= Poa pratensis ssp. irrigata) were studied for five years in a Baltic seashore meadow. The process of tiller population maintenance was very dynamic. Both birth and death rates of tillers were high, particularly in A. stolonifera, and the turnover rate of the populations was high. Recruitment was mainly by vegetative tillers, produced continuously throughout the growing season. The proportion of flowering tillers was low, but varied between years. Considerable year-to-year variation was also found in birth and death rates. Despite this between-year variation and the differences found between species in flowering frequency, pattern of survivorship and tiller longevity, population sizes of the species remained relatively constant.

引用

页码：89 / 94

页数：6

共 23 条

[1]

Butler J.L., Briske D.D., Population structure and tiller demography of the bunchgrass Schizachyrium scoparium in response to herbivory, Oikos, 51, pp. 306-312, (1988)

[2]

Cook R.E., Growth and Development in Clonal Plant Populations, Population Biology and Evolution of Clonal Plant Populations, pp. 259-296, (1985)

[3]

Carlsson B.A., Callaghan T.J., Effects of flowering on shoot dynamics of Carex bigelowii along an altitudinal gradient in Swedish Lappland, J. Ecol., 78, pp. 152-165, (1990)

[4]

Ericson L., The downward migration of plants on a rising Bothnian sea shore, Acta Phytogeogr. Suec., 68, pp. 61-72, (1980)

[5]

Eriksson O., Survivorship, reproduction and dynamics of ramets of Potentilla anserina on a Baltic seashore meadow, Vegetatio, 67, pp. 17-25, (1986)

[6]

Eriksson O., Seedling dynamics and life histories in clonal plants, Oikos, 55, pp. 231-238, (1989)

[7]

Fetcher N., Shaver G.R., Life histories of tillers of Eriophorum vaginatum in relation to tundra disturbance, J. Ecol., 11, pp. 131-147, (1983)

[8]

Garwood E.A., Seasonal tiller productions of grass and grass/clover swards with and without irrigation, Grass and Forage Science, 24, pp. 333-344, (1969)

[9]

Harper J.L., Population Biology of Plants., (1977)

[10]

Hulten E., Fries M., Atlas ofNorth European vascular plants., (1986)

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