COMPETITIVE INTERACTIONS BETWEEN THE PERENNIAL SHRUB LEIPOLDTIA-CONSTRICTA AND AN ANNUAL FORB, GORTERIA-DIFFUSA

被引：11

作者：

CUNLIFFE, RN

JARMAN, ML

MOLL, EJ

YEATON, RI

机构：

来源：

SOUTH AFRICAN JOURNAL OF BOTANY | 1990年 / 56卷 / 01期

关键词：

D O I：

10.1016/S0254-6299(16)31108-5

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Strong competitive interactions were measured between intraspecific and interspecific nearest-neighbour pairs. In particular, the size and reproductive potential of the annual forb was reduced whenever it established next to the perennial shrub. Despite this effect, more annuals established close to the perennial shrub, presumably as the result of the latter's multiple-stemmed growth habitat which traps soil at its base providing a "safe site' for germination and establishment. -from Authors

引用

页码：34 / 38

页数：5

共 22 条

[1]

Ehleringer J.R., Intraspecific competitive effects on water relations, growth, and reproduction in Encelia farinosa, Oecologia, 63, pp. 153-158, (1984)

[2]

Fonteyn P.J., Mahall B.E., Competition among desert perennials, Nature, 275, pp. 544-545, (1978)

[3]

Fonteyn P.J., Mahall B.E., An experimental analysis of structure in a desert plant community, J. Ecol., 69, pp. 883-896, (1981)

[4]

Fowler N., The role of competition in plant communities in arid and semiarid regions, Ann. Rev. Ecol. Syst., 17, pp. 89-110, (1986)

[5]

Friedman J., Orshan G., Ziger-Cfir Y., Suppression of annuals by Artemisia herba-alba in the Negev Desert of Israel, J. Ecol., 65, pp. 413-426, (1977)

[6]

Grieg-Smith P., (1983)

[7]

Inouye R.S., Byers G.S., Brown J.H., Effects of predation and competition on survivorship, fecundity and community structure of desert annuals, Ecology, 61, pp. 1344-1351, (1980)

[8]

Le Roux A., Schelpe T., Namaqualand, (1988)

[9]

Muller C.H., The association of desert annuals with shrubs, Am. J. Bot., 40, pp. 53-60, (1953)

[10]

Pattern D.T., Productivity and production efficiency of an upper Sonoran Desert ephemeral community, Am. J. Bot., 65, pp. 735-742, (1978)

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