Biodiversity Science ›› 2010, Vol. 18 ›› Issue (6): 615-621.doi: 10.3724/SP.J.2010.615

Special Issue: Biological Invasions: Mechanisms Impacts and Management;

• Special Issue • Previous Article     Next Article

Comparison of morphological traits between alligator weed and two congeners under different water and nutrient conditions

Kun Wang; Ji Yang; Jiakuan Chen*   

  1. Coastal Ecosystems Research Station of the Yangtze River Estuary, Ministry of Education Key Laboratory for Biodiversity Science and Ecological Engineering, Institute of Biodiversity Science, Fudan University, Shanghai 200433
  • Received:2010-04-22 Online:2011-01-31
  • Jiakuan Chen

Alligator weed (Alternanthera philoxeroides), a worldwide noxious weed, has caused enormous ecological and economic losses in China. To better understand the species’ successful invasion, and to predict relationships between expansion of its population and environmental conditions, we compared morphological traits of alligator weed with two closely related species, i.e. the geographically restricted alien A. pungens and the native A. sessilis, under different water and nutrient conditions in a common garden experiment. Compared to A. pungens and A. sessilis, alligator weed produced more biomass with high availability of water and nutrients, but did not in conditions of low water availability. These results suggest that the invasiveness of alligator weed may be influenced by environmental conditions. In addition, alligator weed had marginally greater specific leaf area (SLA) and phenotypic plasticity than its congeners. Phenotypic plasticity and SLA may thus have predictive value for invasiveness of alien species under multiple environmental conditions.

No related articles found!
Full text



[1] WANG Hong-Xing, CHEN Xin, TANG Jian-Jun, SHIMIZU Katsuyoshi. Influence of released transgenic pest and disease resistant crops on plant associated microorganisms in soil[J]. Biodiv Sci, 2002, 10(2): 232 -237 .
[2] Mei Bai;Hong Wu*. Recent Progress in Lipid Biosynthesis Regulated by TAG1 in Arabidopsis thaliana[J]. Chin Bull Bot, 2009, 44(06): 735 -741 .
[3] . [J]. Chin J Plan Ecolo, 1963, (2): 141 .
[4] ZHANG Li-Quan, WU Jian-Ping, ZHEN Yu, SHU Jiong. A GIS-Based Gradient Analysis of the Urban Landscape Pattern of Shanghai Metropolitan Region[J]. Chin J Plan Ecolo, 2004, 28(1): 78 -85 .
[5] WANG Xi-Qun, MA Lu-Yi, GUO Bao-Xiang, GE Ji-Wen, FAN Shen-Hou. The conservation of Metasequoia glyptostroboides and its current problems in China[J]. Biodiv Sci, 2004, 12(3): 377 -385 .
[6] WU Fu-Zhong, YANG Wan-Qin, ZHANG Jian, ZHOU Li-Qiang. Effects of cadmium stress on growth and nutrient accumulation, distribution and utilization in Osmanthus fragrans var. thunbergii[J]. Chin J Plan Ecolo, 2010, 34(10): 1220 -1226 .
[7] Kao Tso-Ching, Cheng Ching-Yung. New Taxa of the Chinese Celastraceae (1)[J]. J Syst Evol, 1988, 26(4): 310 -314 .
[8] . [J]. Chin Bull Bot, 1996, 13(专辑): 76 .
[9] ZHAN Zha_Jun, SUN Han_Dong, WU Hou_Ming and YUE Jian_Min. Chemical Components from the Fungus Englero myces goetzei[J]. J Integr Plant Biol, 2003, 45(2): 248 -252 .
[10] YUAN Zheng-Qiang, ZHAO Cun-You, ZHOU Yan, TIAN Ying-Chuan. Aphid-resistant Transgenic Tobacco Plants Expressing Modified gna Gene[J]. J Integr Plant Biol, 2001, 43(6): 592 -597 .