Work

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

Year: 2003

Type: article

Abstract: 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.

Source: Journal of Experimental Botany

DOI: 10.1093/jxb/erg224

Authors: Nathaniel J. Dominy, Peter W. Lucas, S. Joseph Wright

Institutions: University of Chicago, University of Hong Kong, Smithsonian Tropical Research Institute

Language: English

Topic: Ecology and Vegetation Dynamics Studies

Subfield: Nature and Landscape Conservation

Field: Environmental Science

Domain: Physical Sciences

SDG: Life on land

Open Access status: bronze

Funders: Smithsonian Institution, Smithsonian Tropical Research Institute