Spatial segregation by gender of the subdioecious shrub Thymelaea hirsuta in the egyptian desert

International Journal of Plant Sciences

Volumn 160, Issue 2, 1999, Pages 341-350

  El Keblawy, Ali ^a,b   Freeman, D Carl ^a,b  

^a UNITED ARAB EMIRATES UNIVERSITY   (United Arab Emirates)

^b WAYNE STATE UNIVERSITY   (United States)

Author keywords

Ecology; Gender; Spatial segregation; Subdioecious; Thymelaea hirsuta

Indexed keywords

NEAREST NEIGHBOR ANALYSIS; SEX-RELATED DIFFERENCE; SHRUB; SPATIAL DISTRIBUTION;

EGYPT;

THYMELAEA HIRSUTA;

EID: 0032950285     PISSN: 10585893     EISSN: None     Source Type: Journal    
DOI: 10.1086/314131     Document Type: Article

References (23)

1. Allen SE 1984 Chemical analysis of ecological materials. 2d ed. Blackwell Scientific, Oxford.
2. Ayyad MA, MY Ammar 1974 Vegetation and environment of the western Mediterranean coastal land of Egypt. II. The habitat of inland ridge. J Ecol 62:439-456.
3. Bawa KS, PA Opler 1977 Spatial relationships between staminate and pistillate plants of dioecious tropical forest trees. Evolution 31: 64-68.
4. Bierzychudek P, V Eckhart 1988 Spatial segregation of the sexes of dioecious plants. Am Nat 132:34-43.
5. Charlesworth B, D Charlesworth 1978 A model for the evolution of dioecy and gynodioecy. Am Nat 112:925-997.
6. Darwin C 1877 The different forms of flowers on plants of the same species. J. Murray, London.
7. Dommee B, JL Bompar, N Denelle 1990 Sexual tetramorphism in Thymelaea hirsuta (Thymelaceae): evidence of the pathway from heterodichogamy to dioecy at the interspecific level. Am J Bot 77: 1449-1462.
8. El-Keblawy A, J Lovett-Doust, L Lovett-Doust 1996 Gender variation and the evolution of dioecy in Thymelaea hirsuta (Thymelaeaceae). Can J Bot 74:1596-1601.
9. El-Keblawy A, J Lovett-Doust, L Lovett-Doust, KH Shaltout 1995 Labile sex expression and dynamics of gender in Thymelaea hirsuta. Ecoscience 2:55-66.
10. Emberger L 1955 Une classification biogeographique des climats. Recueil de Traveaux de Laboratoires de Botanique, Geologie et Zoologie, Universite de Montpellier 7:3-43.
11. Freeman DC, LG Klikoff, KT Harper 1976 Differential resource utilization by the sexes of dioecious plants. Science 193:597-599.
12. Freeman DC, J Lovett-Doust, A El-Keblawy, K Miglia, ED McArthur 1997 Sexual specialization and inbreeding avoidance in the evolution of dioecy. Bot Rev 63:65-92.
13. Freeman DC, ED McArthur 1984 The relative influence of mortality, nonflowering, and sex change on the sex ratios of Atriplex. Bot Gaz 145:385-394.
14. Freeman DC, ED McArthur, SC Sanderson, AR Tiedemann 1993 The influence of topography on male and female fitness components of Atriplex canescens. Oecologia 93:538-547.
15. Iglesias MC, G Bell 1989 The small-scale spatial distribution of male and female plants. Oecologia 80:229-235.
16. Meigs P 1973 World distribution of coastal deserts. Pages 3-13 in HK David, AZ Wilson, eds. Coastal deserts: their natural and human environment. University of Arizona Press, Tucson.
17. Ramadan AA, A El-Keblawy, KH Shaltout, J Lovett-Doust 1994 Sexual polymorphism, growth and reproductive effort in Egyptian Thymelaea hirsuta (Thymelaeaceae). Am J Bot 81: 847-857.
18. Shaltout KH, MA Ayyad 1988 Structure and standing crop of Egyptian Thymealaea hirsuta populations. Vegetatio 74:67-73.
19. Shea MM, PM Dixon, RR Sharitz 1993 Size differences, sex ratio, and spatial distribution of male and female water tupelo, Nyssa aquatica (Nyssaceae). Am J Bot 80:26-30.
20. US Salinity Laboratory Staff 1954 Diagnosis and improvement of saline and alkali soils. USDA Handbook 60. Soil and Water Conservation Branch, Agricultural Research Service, USDA, Washington, D.C. 160 pp.
21. Vitale JJ, DC Freeman 1986 Partial niche separation in Spinacia oleracea L.: an examination of reproductive allocation. Evolution 40: 426-430.
22. Vitale JJ, DC Freeman, A Merlotti, M D'Allessandro 1987 Patterns of biomass allocation in Spinacia oleracea (Chenopodiaceae) across a salinity gradient: evidence for a niche separation. Am J Bot 74: 1049-1054.
23. Zar JH 1984 Biostatistical analysis. 2d ed. Prentice Hall, Englewood Cliffs, N.J.