Putting plant resistance traits on the map: a test of the idea that plants are better defended at lower latitudes.

Published

Journal Article

• It has long been believed that plant species from the tropics have higher levels of traits associated with resistance to herbivores than do species from higher latitudes. A meta-analysis recently showed that the published literature does not support this theory. However, the idea has never been tested using data gathered with consistent methods from a wide range of latitudes. • We quantified the relationship between latitude and a broad range of chemical and physical traits across 301 species from 75 sites world-wide. • Six putative resistance traits, including tannins, the concentration of lipids (an indicator of oils, waxes and resins), and leaf toughness were greater in high-latitude species. Six traits, including cyanide production and the presence of spines, were unrelated to latitude. Only ash content (an indicator of inorganic substances such as calcium oxalates and phytoliths) and the properties of species with delayed greening were higher in the tropics. • Our results do not support the hypothesis that tropical plants have higher levels of resistance traits than do plants from higher latitudes. If anything, plants have higher resistance toward the poles. The greater resistance traits of high-latitude species might be explained by the greater cost of losing a given amount of leaf tissue in low-productivity environments.

Full Text

Duke Authors

Cited Authors

  • Moles, AT; Wallis, IR; Foley, WJ; Warton, DI; Stegen, JC; Bisigato, AJ; Cella-Pizarro, L; Clark, CJ; Cohen, PS; Cornwell, WK; Edwards, W; Ejrnaes, R; Gonzales-Ojeda, T; Graae, BJ; Hay, G; Lumbwe, FC; Magaña-Rodríguez, B; Moore, BD; Peri, PL; Poulsen, JR; Veldtman, R; von Zeipel, H; Andrew, NR; Boulter, SL; Borer, ET; Campón, FF; Coll, M; Farji-Brener, AG; De Gabriel, J; Jurado, E; Kyhn, LA; Low, B; Mulder, CPH; Reardon-Smith, K; Rodríguez-Velázquez, J; Seabloom, EW; Vesk, PA; van Cauter, A; Waldram, MS; Zheng, Z; Blendinger, PG; Enquist, BJ; Facelli, JM; Knight, T; Majer, JD; Martínez-Ramos, M; McQuillan, P; Prior, LD

Published Date

  • August 2011

Published In

Volume / Issue

  • 191 / 3

Start / End Page

  • 777 - 788

PubMed ID

  • 21539574

Pubmed Central ID

  • 21539574

Electronic International Standard Serial Number (EISSN)

  • 1469-8137

International Standard Serial Number (ISSN)

  • 0028-646X

Digital Object Identifier (DOI)

  • 10.1111/j.1469-8137.2011.03732.x

Language

  • eng