INVESTIGADORES
PEREZ HARGUINDEGUY Natalia
artículos
Título:
Global patterns of leaf mechanical properties
Autor/es:
ONODA Y; WESTOBY M; ADLER P B ; CHOONG A M F; CLISSOLD F J; CORNELISSEN J H C; DIAZ S; DOMINY N J; ELGART A, ; ENRICO, LUCAS; FINE P A C ; HOWARD J J; JALILI A, ; KITAJIMA K; KUROKAWA H; MCARTHU C; LUCAS P W; MARKESTEIJN K; PÉREZ-HARGUINDEGUY N; POORTER L; RICHARD L; SANTIAGO L S; SOSINSKI E E; VAN BAEL S A; WARTON D I; WRIGHT I J; WRIGHT S J ; YAMASHITA N.
Revista:
ECOLOGY LETTERS
Editorial:
WILEY-BLACKWELL PUBLISHING, INC
Referencias:
Año: 2011 vol. 14 p. 301 - 312
ISSN:
1461-023X
Resumen:
Leaf mechanical properties strongly influence leaf lifespan, plantherbivore interactions, litter decomposition
and nutrient cycling, but global patterns in their interspecific variation and underlying mechanisms remain
poorly understood. We synthesize data across the three major measurement methods, permitting the first global
analyses of leaf mechanics and associated traits, for 2819 species from 90 sites worldwide. Key measures of leaf
mechanical resistance varied c. 500800-fold among species. Contrary to a long-standing hypothesis, tropical
leaves were not mechanically more resistant than temperate leaves. Leaf mechanical resistance was modestly
related to rainfall and local light environment. By partitioning leaf mechanical resistance into three different
components we discovered that toughness per density contributed a surprisingly large fraction to variation in
mechanical resistance, larger than the factions contributed by lamina thickness and tissue density. Higher
toughness per density was associated with long leaf lifespan especially in forest understory. Seldom appreciated
in the past, toughness per density is a key factor in leaf mechanical resistance, which itself influences plant
animal interactions and ecosystem functions across the globe.
leaves were not mechanically more resistant than temperate leaves. Leaf mechanical resistance was modestly
related to rainfall and local light environment. By partitioning leaf mechanical resistance into three different
components we discovered that toughness per density contributed a surprisingly large fraction to variation in
mechanical resistance, larger than the factions contributed by lamina thickness and tissue density. Higher
toughness per density was associated with long leaf lifespan especially in forest understory. Seldom appreciated
in the past, toughness per density is a key factor in leaf mechanical resistance, which itself influences plant
animal interactions and ecosystem functions across the globe.
c. 500800-fold among species. Contrary to a long-standing hypothesis, tropical
leaves were not mechanically more resistant than temperate leaves. Leaf mechanical resistance was modestly
related to rainfall and local light environment. By partitioning leaf mechanical resistance into three different
components we discovered that toughness per density contributed a surprisingly large fraction to variation in
mechanical resistance, larger than the factions contributed by lamina thickness and tissue density. Higher
toughness per density was associated with long leaf lifespan especially in forest understory. Seldom appreciated
in the past, toughness per density is a key factor in leaf mechanical resistance, which itself influences plant
animal interactions and ecosystem functions across the globe.