Climate sensitive size-dependent survival in tropical trees

Johnson, Daniel J.; Needham, Jessica; Xu, Chonggang; Massoud, Elias C.; Davies, Stuart J.; Anderson-Teixeira, Kristina J.; Bunyavejchewin, Sarayudh; Chambers, Jeffery Q.; Chang-Yang, Chia-Hao; Chiang, Jyh-Min; Chuyong, George B.; Condit, Richard; Cordell, Susan; Fletcher, Christine; Giardina, Christian P.; Giambelluca, Thomas W.; Gunatilleke, Nimal; Gunatilleke, Savitri; Hsieh, Chang-Fu; Hubbell, Stephen; Inman-Narahari, Faith; Kassim, Abdul Rahman; Katabuchi, Masatoshi; Kenfack, David; Litton, Creighton M.; Lum, Shawn; Mohamad, Mohizah; Nasardin, Musalmah; Ong, Perry S.; Ostertag, Rebecca; Sack, Lawren; Swenson, Nathan G.; Sun, I Fang; Tan, Sylvester; Thomas, Duncan W.; Thompson, Jill ORCID: https://orcid.org/0000-0002-4370-2593; Umaña, Maria Natalia; Uriarte, Maria; Valencia, Renato; Yap, Sandra; Zimmerman, Jess; McDowell, Nate G.; McMahon, Sean M.. 2018 Climate sensitive size-dependent survival in tropical trees. Nature Ecology & Evolution, 2 (9). 1436-1442. 10.1038/s41559-018-0626-z

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Official URL: http://dx.doi.org/10.1038/s41559-018-0626-z

Abstract/Summary

Survival rates of large trees determine forest biomass dynamics. Survival rates of small trees have been linked to mechanisms that maintain biodiversity across tropical forests. How species survival rates change with size offers insight into the links between biodiversity and ecosystem function across tropical forests. We tested patterns of size-dependent tree survival across the tropics using data from 1,781 species and over 2 million individuals to assess whether tropical forests can be characterized by size-dependent life-history survival strategies. We found that species were classifiable into four ‘survival modes’ that explain life-history variation that shapes carbon cycling and the relative abundance within forests. Frequently collected functional traits, such as wood density, leaf mass per area and seed mass, were not generally predictive of the survival modes of species. Mean annual temperature and cumulative water deficit predicted the proportion of biomass of survival modes, indicating important links between evolutionary strategies, climate and carbon cycling. The application of survival modes in demographic simulations predicted biomass change across forest sites. Our results reveal globally identifiable size-dependent survival strategies that differ across diverse systems in a consistent way. The abundance of survival modes and interaction with climate ultimately determine forest structure, carbon storage in biomass and future forest trajectories.

Item Type:	Publication - Article
Digital Object Identifier (DOI):	10.1038/s41559-018-0626-z
UKCEH and CEH Sections/Science Areas:	Biodiversity (Science Area 2017-)
ISSN:	2397-334X
Additional Information. Not used in RCUK Gateway to Research.:	Publisher link (see Related URLs) provides a read-only full-text copy of the published paper.
Additional Keywords:	ecological modelling, forest ecology, population dynamics
NORA Subject Terms:	Ecology and Environment
Related URLs:	Publisher
Date made live:	22 Aug 2018 11:08 +0 (UTC)
URI:	https://nora.nerc.ac.uk/id/eprint/520803

Item Type:

Publication - Article

Digital Object Identifier (DOI):

10.1038/s41559-018-0626-z

UKCEH and CEH Sections/Science Areas:

Biodiversity (Science Area 2017-)

ISSN:

2397-334X

Additional Information. Not used in RCUK Gateway to Research.:

Publisher link (see Related URLs) provides a read-only full-text copy of the published paper.

Additional Keywords:

ecological modelling, forest ecology, population dynamics