干旱区生态环境知识资源中心(Arid): EFFECTS OF GRAZING INTENSITY ON SEXUAL AND CLONAL REPRODUCTION IN A CLONAL XEROPHYTIC SHRUB

Arid

DOI	10.30848/PJB2020-5(42)
	EFFECTS OF GRAZING INTENSITY ON SEXUAL AND CLONAL REPRODUCTION IN A CLONAL XEROPHYTIC SHRUB
	Wang, Yinhua; Xie, Lina; Zhang, Guogang; Guo, Hongyu; Whitt, Ashley A.; Chen, Weizhong; Han, Lei; Ma, Chengcang
通讯作者	Zhang, GG
来源期刊	PAKISTAN JOURNAL OF BOTANY
ISSN	0556-3321
EISSN	2070-3368
出版年	2020
卷号	52 期号:5 页码:1737-1744
英文摘要	Many plants can reproduce both sexually and clonally, with different consequences for the dispersal, distribution and long-term fitness of plant populations. Understanding the factors and underlying mechanisms that mediate the trade-offs between the two reproduction modes has long been of interest to biologists and ecologists. This knowledge is critical for better understanding the dispersal and sustainability of plant populations in changing environments. Herbivory affects plant growth, and yet how herbivory affects the reproduction mode in clonal flowering plants still remains unclear. In this study, we studied the influence of grazing on the reproduction mode and traits of a dominant xerophytic shrub Caragana brachypoda Pojark using field experiments that under three grazing intensities. Our results showed that both sexual and clonal reproduction of C. brachypoda decreased as grazing intensity increased. Thus, grazing disturbance will likely lead to an aging population structure. Moreover, the proportion of sexual reproduction versus clonal reproduction of this species significantly decreased as grazing intensity increased (with sexual reproduction decreasing to 0% under intensive grazing), which will likely decrease genetic diversity and reduce adaption potential to varying climate conditions over the long run. In addition, because grazing affected seeds and distal ramets more than proximate ramets, it is likely to create a more aggregated distribution pattern of plants, which in turn would enable livestock to graze on this shrub species even more easily due to reduction in travelling costs. Our results suggest that grazing can affect both sexual and clonal reproduction in clonal plants, and can affect mode of reproduction. The effects of grazing on plant reproduction mode are likely to ultimately affect population age structure, population genetic diversity and population distribution patterns, thereby influencing the long-term future of populations even when grazing appears to be sustainable based on plant density.
英文关键词	Caragana brachypoda Sexual reproduction Clonal reproduction Reproduction strategy Spatial distribution patterns Grazing disturbance Arid desert Inner Mongolian Plateau
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000547782400027
WOS关键词	ASEXUAL REPRODUCTION ; RELATIVE IMPORTANCE ; SPARTINA-ALTERNIFLORA ; CARAGANA-STENOPHYLLA ; POPULATION-GROWTH ; PLANT ; EVOLUTION ; HERB ; MAINTENANCE ; GRASSLANDS
WOS类目	Plant Sciences
WOS研究方向	Plant Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/325016
作者单位	[Wang, Yinhua; Xie, Lina; Zhang, Guogang; Guo, Hongyu; Chen, Weizhong; Han, Lei; Ma, Chengcang] Tianjin Normal Univ, Coll Life Sci, Tianjin Key Lab Anim & Plant Resistance, Tianjin 300387, Peoples R China; [Xie, Lina] Nankai Univ, Coll Life Sci, Tianjin 300071, Peoples R China; [Whitt, Ashley A.] Deakin Univ, Ctr Integrat Ecol, Sch Life & Environm Sci, Geelong, Vic, Australia
推荐引用方式 GB/T 7714	Wang, Yinhua,Xie, Lina,Zhang, Guogang,et al. EFFECTS OF GRAZING INTENSITY ON SEXUAL AND CLONAL REPRODUCTION IN A CLONAL XEROPHYTIC SHRUB[J],2020,52(5):1737-1744.
APA	Wang, Yinhua.,Xie, Lina.,Zhang, Guogang.,Guo, Hongyu.,Whitt, Ashley A..,...&Ma, Chengcang.(2020).EFFECTS OF GRAZING INTENSITY ON SEXUAL AND CLONAL REPRODUCTION IN A CLONAL XEROPHYTIC SHRUB.PAKISTAN JOURNAL OF BOTANY,52(5),1737-1744.
MLA	Wang, Yinhua,et al."EFFECTS OF GRAZING INTENSITY ON SEXUAL AND CLONAL REPRODUCTION IN A CLONAL XEROPHYTIC SHRUB".PAKISTAN JOURNAL OF BOTANY 52.5(2020):1737-1744.