气候变化领域集成服务门户(CCPortal): The effect of simulated sheep grazing on male and female reproductive performance in Caragana microphylla Lam. (Leguminosae)

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DOI	10.1163/22244662-20191015
	The effect of simulated sheep grazing on male and female reproductive performance in Caragana microphylla Lam. (Leguminosae)
	Zhang, Zhen; Wang, Lichao; Liu, Jing; Dong, Zhaorong; Xu, Wei; Wang, Shiping
通讯作者	Zhang, Z (通讯作者)
发表日期	2019
ISSN	1565-9801
EISSN	2224-4662
起始页码	85
结束页码	91
卷号	65 期号:3-4
英文摘要	Understanding the reproductive response of host plants to herbivores is important in grazing ecology and grassland management. Simulated grazing experiments were conducted to determine the influence of different grazing intensities on reproductive performance of a shrub, Caragana microphylla Lam. The total leaf mass, total flower mass, total flower mass allocation, and single flower mass allocation decreased with increased grazing intensity. The total spine mass, single flower mass and total spine mass allocation increased with increased grazing intensity. The stem mass, stem mass allocation and total leaf mass allocation had not significant change with the increasing grazing intensity. Under heavy grazing treatments, the host plants significantly decreased their investment in reproduction and increased investment in physical defense organs. Although there were no significant differences in the number of ovules among different grazing intensities, herbivory negatively affected reproductive performance, including the number of flowers, the number of pollen grains per flower, the number of ripe seeds and the rate of pod-set in host plants. These results indicate that there are trade-offs among vegetative and reproductive and defensive organs. Compared with male reproduction, female reproductive performance was less sensitive to herbivory and grazing intensity. Moreover, pollen grains from heavily browsed plants seemed to be less likely to sire pods and ripe seeds than those from unbrowsed plants, indicating that herbivory not only decreased pollen production, but also adversely affected pollen performance.
关键词	SEED PRODUCTION HERBIVORY GROWTH POLLINATORS LIMITATION UNGULATE IMPACTS POLLEN PLANTS RESISTANCE
英文关键词	Caragana microphylla; herbivory; Inner Mongolia steppe; reproduction; saliva; trade-off
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Evolutionary Biology
WOS类目	Ecology ; Evolutionary Biology
WOS记录号	WOS:000509126700003
来源期刊	ISRAEL JOURNAL OF ECOLOGY & EVOLUTION
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/259433
推荐引用方式 GB/T 7714	Zhang, Zhen,Wang, Lichao,Liu, Jing,et al. The effect of simulated sheep grazing on male and female reproductive performance in Caragana microphylla Lam. (Leguminosae)[J]. 中国科学院青藏高原研究所,2019,65(3-4).
APA	Zhang, Zhen,Wang, Lichao,Liu, Jing,Dong, Zhaorong,Xu, Wei,&Wang, Shiping.(2019).The effect of simulated sheep grazing on male and female reproductive performance in Caragana microphylla Lam. (Leguminosae).ISRAEL JOURNAL OF ECOLOGY & EVOLUTION,65(3-4).
MLA	Zhang, Zhen,et al."The effect of simulated sheep grazing on male and female reproductive performance in Caragana microphylla Lam. (Leguminosae)".ISRAEL JOURNAL OF ECOLOGY & EVOLUTION 65.3-4(2019).