Detecting herbivory in two mosses from an Atlantic Forest, Brazil

Autor: Adaíses S. Maciel-Silva, Nivea Dias dos Santos
Rok vydání: 2011
Předmět:
Zdroj: Journal of Bryology. 33:140-147
ISSN: 1743-2820
0373-6687
DOI: 10.1179/1743282010y.0000000023
Popis: We recorded evidence for herbivory in the mosses Hypopterygium tamarisci and Lopidium concinnum in a tropical rainforest (Sao Paulo State, Brazil). We described this herbivory quantitatively, measured the protein and phenol abundance, and identified potential herbivores in the laboratory. We sampled plants from 10 colonies of each species in the years 2007 and 2008. To quantify herbivory, we used an index of damage (ID), with six categories of injury from 0 (0%) to 5 (50–100%). Air-dried moss samples were weighed (100 mg) and used for protein and phenol detection by the Bradford and Folin-Ciocalteau methods, respectively. The plants were cultivated under controlled laboratory conditions and the identification of herbivores was performed from photographs. Injury was higher in H. tamarisci than in L. concinnum (68% and 38% in 2007 and 35% and 23% in 2008, respectively). H. tamarisci had higher mean ID (1·70 in 2007 and 1·09 in 2008); however, the ID values were low compared with ID values detected i...
Databáze: OpenAIRE
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