Plant's-eye view of temperature governs elevational distributions
Result description
Explaining species geographic distributions by macroclimate variables is the most common approach for getting mechanistic insights into large-scale diversity patterns and range shifts. However, species' traits influencing biophysical processes can produce a large decoupling from ambient air temperature, which can seriously undermine biogeographical inference. We combined stable oxygen isotope theory with a trait-based approach to assess leaf temperature during carbon assimilation (T-L) and its departure (Delta T) from daytime free air temperature during the growing season (T-gs) for 158 plant species occurring from 3,400 to 6,150 m a.s.l. in Western Himalayas. We uncovered a general extent of temperature decoupling in the region. The interspecific variation in Delta T was best explained by the combination of plant height and delta(13) C, and leaf dry matter content partly captured the variation in T-L. The combination of T-L and Delta T, with Delta T contributing most, explained the interspecific difference in elevational distributions. Stable oxygen isotope theory appears promising for investigating how plants perceive temperatures, a pivotal information to species biogeographic distributions.
Keywords
temperatureplant heightoxygen stable isotope ratiomountainleaf dry matter contentdecouplingcarbon stable isotope ratiobiophysical traits
The result's identifiers
Result code in IS VaVaI
Alternative codes found
RIV/67985939:_____/20:00534152
Result on the web
DOI - Digital Object Identifier
Alternative languages
Result language
angličtina
Original language name
Plant's-eye view of temperature governs elevational distributions
Original language description
Explaining species geographic distributions by macroclimate variables is the most common approach for getting mechanistic insights into large-scale diversity patterns and range shifts. However, species' traits influencing biophysical processes can produce a large decoupling from ambient air temperature, which can seriously undermine biogeographical inference. We combined stable oxygen isotope theory with a trait-based approach to assess leaf temperature during carbon assimilation (T-L) and its departure (Delta T) from daytime free air temperature during the growing season (T-gs) for 158 plant species occurring from 3,400 to 6,150 m a.s.l. in Western Himalayas. We uncovered a general extent of temperature decoupling in the region. The interspecific variation in Delta T was best explained by the combination of plant height and delta(13) C, and leaf dry matter content partly captured the variation in T-L. The combination of T-L and Delta T, with Delta T contributing most, explained the interspecific difference in elevational distributions. Stable oxygen isotope theory appears promising for investigating how plants perceive temperatures, a pivotal information to species biogeographic distributions.
Czech name
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Czech description
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Classification
Type
Jimp - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10618 - Ecology
Result continuities
Project
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Global Change Biology
ISSN
1354-1013
e-ISSN
—
Volume of the periodical
26
Issue of the periodical within the volume
7
Country of publishing house
US - UNITED STATES
Number of pages
10
Pages from-to
4094-4103
UT code for WoS article
000531732400001
EID of the result in the Scopus database
2-s2.0-85084498339
Result type
Jimp - Article in a specialist periodical, which is included in the Web of Science database
OECD FORD
Ecology
Year of implementation
2020