Buttress trees in a 20-hectare tropical dipterocarp rainforest in Xishuangbanna, SW China

被引:8
作者
He, Zhiyuan [1 ,2 ]
Tang, Yong [1 ]
Deng, Xiaobao [1 ]
Cao, Min [1 ]
机构
[1] Chinese Acad Sci, Xishuangbanna Trop Bot Garden, Key Lab Trop Forest Ecol, Mengla 666303, Yunnan, Peoples R China
[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
基金
美国国家科学基金会; 中国国家自然科学基金;
关键词
buttress; phylogenetic signal; tropical rainforest; species size; Xishuangbanna; MICROHABITAT USE; CROWN ASYMMETRY; ROOTS; PATTERNS; SYSTEMS; GROWTH; ISLAND;
D O I
10.1093/jpe/rts031
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
Buttresses are prevalent and are important to many ecological processes in tropical rainforests but are overlooked in many rainforest studies. Based on a buttress survey in a 20-hectare plot, this study aims to answer the following questions: (I) Is buttress forming a fixed species characteristic? (ii) Is there any phylogenetic signal for buttress forming across a broad taxonomic scale? (iii) Is buttress forming an inherent feature or simply induced by environmental factors, and how is this relevant to the size of the tree? We surveyed buttresses for all 95940 trees with diameter at breast height (DBH) 10mm in a 20-ha tropical dipterocarp rainforest in Xishuangbanna, SW China. The occurrence of buttresses was compared across different taxa and across different tree-size classes. A phylogenetic analysis was conducted among buttressed and non-buttressed species in order to understand the evolutionary background of buttress formation. This preliminary study showed that buttress trees are very abundant (making up 32% of trees with 100mm DBH) in this 20-ha tropical rainforest situated at the northern edge of the tropics. Fifty-one percent of the 468 tree species in the plot had stems that produced buttresses. Large trees were more likely to develop buttresses than smaller ones. We found that although buttress formation is not a fixed species characteristic, there is a strong phylogenetic signal for buttress formation in larger species.
引用
收藏
页码:187 / 192
页数:6
相关论文
共 41 条
[1]   Tree species stratification in relation to allometry and demography in a warm-temperate rain forest [J].
Aiba, SI ;
Kohyama, T .
JOURNAL OF ECOLOGY, 1996, 84 (02) :207-218
[2]   Testing for phylogenetic signal in comparative data: Behavioral traits are more labile [J].
Blomberg, SP ;
Garland, T ;
Ives, AR .
EVOLUTION, 2003, 57 (04) :717-745
[3]   Tropical forests of Xishuangbanna, China [J].
Cao, M ;
Zou, XM ;
Warren, M ;
Zhu, H .
BIOTROPICA, 2006, 38 (03) :306-309
[4]  
Chalk L., 1963, Commonwealth Forestry Review, V42, P53
[5]   Buttress formation and directional stress experienced during critical phases of tree development [J].
Chapman, CA ;
Kaufman, L ;
Chapman, LJ .
JOURNAL OF TROPICAL ECOLOGY, 1998, 14 :341-349
[6]   Biomechanics of buttressed trees: Bending strains and stresses [J].
Clair, B ;
Fournier, M ;
Prevost, MF ;
Beauchene, J ;
Bardet, S .
AMERICAN JOURNAL OF BOTANY, 2003, 90 (09) :1349-1356
[7]  
Condit R., 1998, Tropical forest census plots: methods and results from Barro Colorado Island, Panama and a comparison with other plots.
[8]   The function of buttress roots: a comparative study of the anchorage systems of buttressed (Aglaia and Nephelium ramboutan species) and non-buttressed (Mallotus wrayi) tropical trees [J].
Crook, MJ ;
Ennos, AR ;
Banks, JR .
JOURNAL OF EXPERIMENTAL BOTANY, 1997, 48 (314) :1703-1716
[9]   Identification of functional groups in an old-growth tropical montane rain forest on Hainan Island, China [J].
Deng, Fuying ;
Zang, Runguo ;
Chen, Boping .
FOREST ECOLOGY AND MANAGEMENT, 2008, 255 (5-6) :1820-1830
[10]   Microhabitat use by the whip spider Heterophrynus longicornis (Amblypygi, Phrynidae) in central Amazon [J].
Dias, Sidelay C. ;
Machado, Glauco .
JOURNAL OF ARACHNOLOGY, 2006, 34 (03) :540-544