THE LEAF-AREA SHRINKAGE EFFECT CAN BIAS PALEOCLIMATE AND ECOLOGY RESEARCH

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11620%2F12%3A10127312" target="_blank" >RIV/00216208:11620/12:10127312 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.3732/ajb.1200062" target="_blank" >http://dx.doi.org/10.3732/ajb.1200062</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3732/ajb.1200062" target="_blank" >10.3732/ajb.1200062</a>

Jazyk výsledku

angličtina

Název v původním jazyce

THE LEAF-AREA SHRINKAGE EFFECT CAN BIAS PALEOCLIMATE AND ECOLOGY RESEARCH

Popis výsledku v původním jazyce

Premise of the Study: Leaf area is a key trait that links plant form, function, and environment. Measures of leaf area can be biased because leaf area is often estimated from dried or fossilized specimens that have shrunk by an unknown amount. We testedthe common assumption that this shrinkage is negligible. Methods: We measured shrinkage by comparing dry and fresh leaf area in 3401 leaves of 380 temperate and tropical species and used phylogenetic and trait-based approaches to determine predictors ofthis shrinkage. We also tested the effects of rehydration and simulated fossilization on shrinkage in four species. Key Results: We found that dried leaves shrink in area by an average of 22% and a maximum of 82%. Shrinkage in dried leaves can be predicted by multiple morphological traits with a standard deviation of 7.8%. We also found that mud burial, a proxy for compression fossilization, caused negligible shrinkage, and that rehydration, a potential treatment of dried herbarium speci

Název v anglickém jazyce

THE LEAF-AREA SHRINKAGE EFFECT CAN BIAS PALEOCLIMATE AND ECOLOGY RESEARCH

Popis výsledku anglicky

Premise of the Study: Leaf area is a key trait that links plant form, function, and environment. Measures of leaf area can be biased because leaf area is often estimated from dried or fossilized specimens that have shrunk by an unknown amount. We testedthe common assumption that this shrinkage is negligible. Methods: We measured shrinkage by comparing dry and fresh leaf area in 3401 leaves of 380 temperate and tropical species and used phylogenetic and trait-based approaches to determine predictors ofthis shrinkage. We also tested the effects of rehydration and simulated fossilization on shrinkage in four species. Key Results: We found that dried leaves shrink in area by an average of 22% and a maximum of 82%. Shrinkage in dried leaves can be predicted by multiple morphological traits with a standard deviation of 7.8%. We also found that mud burial, a proxy for compression fossilization, caused negligible shrinkage, and that rehydration, a potential treatment of dried herbarium speci

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

EF - Botanika

OECD FORD obor

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Projekt

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Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2012

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

American Journal of Botany

ISSN

0002-9122

e-ISSN

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Svazek periodika

99

Číslo periodika v rámci svazku

11

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

8

Strana od-do

1756-1763

Kód UT WoS článku

000311579700015

EID výsledku v databázi Scopus

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