Mechanics and chemistry of rain forest leaves: canopy and understorey compared

被引:61
作者
Dominy, NJ
Lucas, PW
Wright, SJ
机构
[1] Univ Chicago, Dept Ecol & Evolut, Chicago, IL 60637 USA
[2] Univ Hong Kong, Dept Anat, Hong Kong, Hong Kong, Peoples R China
[3] Smithsonian Trop Res Inst, Balboa, Ancon, Panama
关键词
Barro Colorado island; canopy crane; fracture toughness; herbivory; Panama;
D O I
10.1093/jxb/erg224
中图分类号
Q94 [植物学];
学科分类号
071001 [植物学];
摘要
Despite the potential for changes during transit or preservation, the physicochemical properties of leaves are typically measured in a laboratory setting. A suite of laboratory methods adapted for use in the field is described here. The equipment is portable and operable in remote environments. Each technique has been validated against laboratory standards and has been tested throughout the tropics in a variety of ecological contexts. The properties of canopy and understorey leaves from Central Panama are reported here. The results show clear differences between leaves growing in different light regimes. Canopy leaves are tougher and possess greater concentrations of protein, phenols, and tannins. The implication of these results to the resource availability hypothesis, which proposes trade-offs between physiology and defences against herbivory, is discussed.
引用
收藏
页码:2007 / 2014
页数:8
相关论文
共 46 条
[1]
Limitations of Folin assays of foliar phenolics in ecological studies [J].
Appel, HM ;
Govenor, HL ;
D'Ascenzo, M ;
Siska, E ;
Schultz, JC .
JOURNAL OF CHEMICAL ECOLOGY, 2001, 27 (04) :761-778
[2]
Methods of assessing leaf-fracture properties [J].
Aranwela, N ;
Sanson, G ;
Read, J .
NEW PHYTOLOGIST, 1999, 144 (02) :369-383
[3]
Comparison of herbivores and herbivory in the canopy and understory for two tropical tree species [J].
Barone, JA .
BIOTROPICA, 2000, 32 (02) :307-317
[4]
LEAF CHARACTERISTICS OF THE TROPICAL RAIN-FOREST FLORA OF LOS-TUXTLAS, MEXICO [J].
BONGERS, F ;
POPMA, J .
BOTANICAL GAZETTE, 1990, 151 (03) :354-365
[5]
BRADFORD MM, 1976, ANAL BIOCHEM, V72, P248, DOI 10.1016/0003-2697(76)90527-3
[6]
LEAF FRACTURE-TOUGHNESS AND SCLEROPHYLLY - THEIR CORRELATIONS AND ECOLOGICAL IMPLICATIONS [J].
CHOONG, MF ;
LUCAS, PW ;
ONG, JSY ;
PEREIRA, B ;
TAN, HTW ;
TURNER, IM .
NEW PHYTOLOGIST, 1992, 121 (04) :597-610
[7]
RESOURCE AVAILABILITY AND PLANT ANTIHERBIVORE DEFENSE [J].
COLEY, PD ;
BRYANT, JP ;
CHAPIN, FS .
SCIENCE, 1985, 230 (4728) :895-899
[8]
Herbivory and plant defenses in tropical forests [J].
Coley, PD ;
Barone, JA .
ANNUAL REVIEW OF ECOLOGY AND SYSTEMATICS, 1996, 27 :305-335
[9]
MORTALITY-RATES OF 205 NEOTROPICAL TREE AND SHRUB SPECIES AND THE IMPACT OF A SEVERE DROUGHT [J].
CONDIT, R ;
HUBBELL, SP ;
FOSTER, RB .
ECOLOGICAL MONOGRAPHS, 1995, 65 (04) :419-439
[10]
Croat TB, 1978, FLORA BARRO COLORADO