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1 December 2003 Foliar C:N Ratio of Ferns along an Andean Elevational Gradient
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Abstract

We studied the concentration of leaf N and C among 183 fern species along an elevational gradient at 1700 to 3400 m in humid montane forest in the Bolivian Andes at different levels of taxonomic resolution. For two species of Elaphoglossum sampled 8 and 14 times, respectively, there were no elevational trends. Similarly, a contrast of 22 species with wide elevational amplitudes sampled at their highest and lowest locations did not show any change in C or N contents, or in C:N ratios with elevation. At the community level, however, the mean values of C:N ratios for (a) all species found at a given elevation showed a significant decline with increasing elevation and (b) among epiphytic species, higher ratios (i.e., lower relative N content) than among terrestrial species at the same elevation. These trends were opposite to those of the upper soil layer, in which C:N ratios increased with elevation.

Caroline Wegner, Meike Wunderlich, Michael Kessler, and Marcus Schawe "Foliar C:N Ratio of Ferns along an Andean Elevational Gradient," BIOTROPICA 35(4), 486-490, (1 December 2003). https://doi.org/10.1646/03036
Published: 1 December 2003
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