Grazing Intensity and Phenotypic Plasticity in the Clonal Grass Leymus chinensis

doi:10.1002/2017JG003827

	Grazing Intensity and Phenotypic Plasticity in the Clonal Grass Leymus chinensis
	Wang, Deli ; Du, Juan 1; Zhang, Baotian ; Ba, Lei ; Hodgkinson, Kenneth C.
	2017
发表期刊	RANGELAND ECOLOGY & MANAGEMENT
ISSN	1550-7424
卷号	70 期号:6 页码:740-747
摘要	Phenotypic plasticity enables plants to cope with changes in their environment. Plasticity in a population of Leymus chinensis, a common grass species in arid and semiarid temperate grasslands of northern China, was determined in a natural grassland grazed by large domestic herbivores. We measured shoot and bud characteristics monthly along a grazing intensity gradient indicated by distance from the village gate during two growing seasons. In addition, some plants along the gradient were removed to a common transplant garden and their growth was compared. Leaf characteristics (leaf angle, leaf length, and leaf number), growth form (tiller height and tiller clusters), bud proliferation, and plant fitness differed significantly in situ along the gradient. The expression of plasticity was grazing intensity dependent: the greatest increase in tiller density, tiller cluster, and bud number occurred at a moderate grazing intensity (2.5 km from the village gate). In the transplant garden, no evidence was found for distinct populations of L. chinensis within the grassland. Leaf characteristics, tiller growth form, and bud demography of tillers not grazed showed phenotypic plasticity in response to grazing of neighbor shoots because clonal reproduction is the main breeding system for this species in grazed natural grassland and defoliation of neighbor shoots is likely to affect the physiology and morphology of tillers that are not grazed. The observed overcompensation in vegetative reproduction may aid future survival and growth and could be achieved in a prudent grazing system designed to take into account the needs of this dominant grass in semiarid temperate steppes. (C) 2017 The Society for Range Management. Published by Elsevier Inc. All rights reserved.
关键词	grazing intensity gradient phenotypic plasticity Leymus chinensis transplant garden
学科领域	Environmental Sciences & Ecology ; Geology
DOI	10.1002/2017JG003827
收录类别	SCI
语种	英语
WOS关键词	BUD DORMANCY ; MORPHOLOGICAL PLASTICITY ; LEAF ANGLE ; TOLERANCE ; EVOLUTION ; HERBIVORY ; RESPONSES ; ECOLOGY ; DEMOGRAPHY ; DIVERSITY
WOS记录号	WOS:000407860500020
出版者	SOC RANGE MANAGEMENT
文献子类	Article
出版地	LAKEWOOD
EISSN	1551-5028
资助机构	National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31230012, 30900184] ; National Program on Key Basic Research ProjectNational Basic Research Program of China [2015CB150801] ; Program for Introducing Talents to Universities [B16011] ; Specialized Research Fund for the Doctoral Program of Higher Education (SRFDP) of ChinaSpecialized Research Fund for the Doctoral Program of Higher Education (SRFDP) [20090043120010]
作者邮箱	bal337@nenu.edu.cn
作品OA属性	Bronze
引用统计	被引频次：13[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ibcas.ac.cn/handle/2S10CLM1/22228
专题	植被与环境变化国家重点实验室
作者单位	1.[Wang, Deli; Du, Juan; Zhang, Baotian; Ba, Lei; Hodgkinson, Kenneth C.] Northeast Normal Univ, Inst Grassland Sci, Key Lab Vegetat Ecol, Minist Educ, Changchun 130024, Jilin, Peoples R China 2.Chinese Acad Sci, Inst Bot, Lab Quantitat Vegetat Ecol, Beijing 100093, Peoples R China 3.Hodgkinson, Kenneth C.] CSIRO Land & Water, Black Mt Labs, Clunies Ross St, Canberra, ACT 2601, Australia
推荐引用方式 GB/T 7714	Wang, Deli,Du, Juan,Zhang, Baotian,et al. Grazing Intensity and Phenotypic Plasticity in the Clonal Grass Leymus chinensis[J]. RANGELAND ECOLOGY & MANAGEMENT,2017,70(6):740-747.
APA	Wang, Deli,Du, Juan,Zhang, Baotian,Ba, Lei,&Hodgkinson, Kenneth C..(2017).Grazing Intensity and Phenotypic Plasticity in the Clonal Grass Leymus chinensis.RANGELAND ECOLOGY & MANAGEMENT,70(6),740-747.
MLA	Wang, Deli,et al."Grazing Intensity and Phenotypic Plasticity in the Clonal Grass Leymus chinensis".RANGELAND ECOLOGY & MANAGEMENT 70.6(2017):740-747.

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