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Morphological and reproductive response of Caragana microphylla to different stocking rates
Zhang, Z.; Wang, S. -P.; Nyren, P.; Jiang, G. -M.
2006-12-01
发表期刊JOURNAL OF ARID ENVIRONMENTS
卷号67期号:4页码:671-677
文章类型Article
摘要Understanding the effect on host plants of defending against herbivores is important in grazing ecology and grassland management. In this study, the morphological and reproductive responses of Caragana microphylla Lam. to grazing sheep were investigated using a 15-year grazing experiment with six stocking rates in the Inner Mongolia steppe of China. Plant height, rachis length, leaflet size, and number of pods decreased significantly, whereas spine density and length increased significantly with increased stocking rate. Significant negative correlations were observed between production of vegetative and reproductive organs and defensive organs, indicating that it is costly for C. microphylla to defend against herbivores and that morphological miniaturization and a tradeoff between production and defense were main responses of C. microphylla to herbivores. (c) 2006 Elsevier Ltd. All rights reserved.; Understanding the effect on host plants of defending against herbivores is important in grazing ecology and grassland management. In this study, the morphological and reproductive responses of Caragana microphylla Lam. to grazing sheep were investigated using a 15-year grazing experiment with six stocking rates in the Inner Mongolia steppe of China. Plant height, rachis length, leaflet size, and number of pods decreased significantly, whereas spine density and length increased significantly with increased stocking rate. Significant negative correlations were observed between production of vegetative and reproductive organs and defensive organs, indicating that it is costly for C. microphylla to defend against herbivores and that morphological miniaturization and a tradeoff between production and defense were main responses of C. microphylla to herbivores. (c) 2006 Elsevier Ltd. All rights reserved.
关键词Caragana Microphylla Herbivory Inner Mongolia Steppe Physical Defense
WOS标题词Science & Technology ; Life Sciences & Biomedicine
学科领域生物科学
关键词[WOS]ACACIA-TORTILIS ; HERBIVORY ; RESISTANCE ; TRAITS ; SPINES ; GROWTH ; THORNS
收录类别SCI
语种英语
WOS研究方向Environmental Sciences & Ecology
WOS类目Ecology ; Environmental Sciences
WOS记录号WOS:000242159500010
引用统计
被引频次:31[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://210.75.249.4/handle/363003/1306
专题中国科学院西北高原生物研究所
作者单位1.Chinese Acad Sci, Inst Bot, Lab Quantitat Vegetat Ecol, Beijing 100093, Peoples R China
2.Chinese Acad Sci, NW Inst Plateau Biol, Xining 810008, Peoples R China
3.Anhui Agr Univ, Resources & Environm Coll, Hefei 230036, Peoples R China
4.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
5.N Dakota State Univ, Cent Grasslands Res Extens Ctr, Streeter, ND 58483 USA
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GB/T 7714
Zhang, Z.,Wang, S. -P.,Nyren, P.,et al. Morphological and reproductive response of Caragana microphylla to different stocking rates[J]. JOURNAL OF ARID ENVIRONMENTS,2006,67(4):671-677.
APA Zhang, Z.,Wang, S. -P.,Nyren, P.,&Jiang, G. -M..(2006).Morphological and reproductive response of Caragana microphylla to different stocking rates.JOURNAL OF ARID ENVIRONMENTS,67(4),671-677.
MLA Zhang, Z.,et al."Morphological and reproductive response of Caragana microphylla to different stocking rates".JOURNAL OF ARID ENVIRONMENTS 67.4(2006):671-677.
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