Knowledge Management System of Northwest Institute of Plateau Biology, CAS
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
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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 | |
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 |
推荐引用方式 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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