Neither Biased Sex Ratio nor Spatial Segregation of the Sexes in the Subtropical Dioecious Tree Eurycorymbus cavaleriei (Sapindaceae)

doi:10.1111/j.1744-7909.2009.00827.x

CORC > 武汉植物园 > 中国科学院武汉植物园

	Neither Biased Sex Ratio nor Spatial Segregation of the Sexes in the Subtropical Dioecious Tree Eurycorymbus cavaleriei (Sapindaceae)
	Ye, Qigang 2; Gao, Puxin 1,2,5; Kang, Ming 3,4; Wang, Jing 3,4; Huang, Hongwen 2,3,4
刊名	JOURNAL OF INTEGRATIVE PLANT BIOLOGY
	2009-06-01
卷号	51 期号:6 页码:604-613
关键词	dioecy Eurycorymbus cavaleriei rare species sex ratio spatial segregation of the sexes
ISSN号	1672-9072
DOI	10.1111/j.1744-7909.2009.00827.x
英文摘要	Knowledge of sex ratio and spatial distribution of males and females of dioecious species is both of evolutionary interest and of crucial importance for biological conservation. Eurycorymbus cavaleriei, the only species in the genus Eurycorymbus (Sapindaceae), is a dioecious tree endemic to subtropical montane forest in South China. Sex ratios were investigated in 15 natural populations for the two defined ages (young and old). Spatial distribution of males and females was further studied in six large populations occurring in different habitats (fragmented and continuous). The study revealed a slight trend of male-biased sex ratio in both ages of E. cavaleriei, but sex ratio of most populations (13 out of 15) did not display statistically significant deviation from equality. All of the four significantly male-biased populations in the young class shifted to equality or even female-biased. The Ripley's K analysis of the distribution of males with respect to females suggested that individuals of the opposite sexes were more randomly distributed rather than spatially structured. These results suggest that the male-biased sex ratio in E. cavaleriei may result from the precocity of males and habitat heterogeneity. The sex ratio and the sex spatial distribution pattern are unlikely to constitute a serious threat to the survival of the species.
资助项目	National Natural Science Foundation of China[30470185] ; Chinese Academy of Sciences[KSCX2-YW-N-061]
WOS研究方向	Biochemistry & Molecular Biology ; Plant Sciences
语种	英语
出版者	WILEY-BLACKWELL
WOS记录号	WOS:000266843200009
内容类型	期刊论文
源URL	[http://202.127.146.157/handle/2RYDP1HH/1035]
专题	中国科学院武汉植物园
通讯作者	Huang, Hongwen
作者单位	1.Lushan Bot Garden, Lushan 332900, Jiangxi Prov, Peoples R China 2.Chinese Acad Sci, Wuhan Bot Garden, Wuhan 430074, Peoples R China 3.Chinese Acad Sci, Key Lab Plant Resources Conservat & Sustainable U, Guangzhou 510650, Guangdong, Peoples R China 4.Chinese Acad Sci, S China Bot Garden, Guangzhou 510650, Guangdong, Peoples R China 5.Chinese Acad Sci, Lushan 332900, Peoples R China
推荐引用方式 GB/T 7714	Ye, Qigang,Gao, Puxin,Kang, Ming,et al. Neither Biased Sex Ratio nor Spatial Segregation of the Sexes in the Subtropical Dioecious Tree Eurycorymbus cavaleriei (Sapindaceae)[J]. JOURNAL OF INTEGRATIVE PLANT BIOLOGY,2009,51(6):604-613.
APA	Ye, Qigang,Gao, Puxin,Kang, Ming,Wang, Jing,&Huang, Hongwen.(2009).Neither Biased Sex Ratio nor Spatial Segregation of the Sexes in the Subtropical Dioecious Tree Eurycorymbus cavaleriei (Sapindaceae).JOURNAL OF INTEGRATIVE PLANT BIOLOGY,51(6),604-613.
MLA	Ye, Qigang,et al."Neither Biased Sex Ratio nor Spatial Segregation of the Sexes in the Subtropical Dioecious Tree Eurycorymbus cavaleriei (Sapindaceae)".JOURNAL OF INTEGRATIVE PLANT BIOLOGY 51.6(2009):604-613.