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Title: Global importance of large-diameter trees
Authors: Lutz, James A.
Furniss, Tucker J.
Johnson, Daniel J.
Davies, Stuart J.
Allen, David
Alonso, Alfonso
Anderson-Teixeira, Kristina J.
Andrade, Ana
Baltzer, Jennifer
Becker, Kendall M. L.
Blomdahl, Erika M.
Bourg, Norman A.
Bunyavejchewin, Sarayudh
Burslem, David F. R. P.
Cansler, C. Alina
Cao, Ke
Cao, Min
Cárdenas, Dairon
Chang, Li-Wan
Chao, Kuo-Jung
Chao, Wei-Chun
Chiang, Jyh-Min
Chu, Chengjin
Chuyong, George B.
Clay, Keith
Condit, Richard
Cordell, Susan
Dattaraja, Handanakere S.
Duque, Alvaro
Ewango, Corneille E. N.
Fischer, Gunter A.
Fletcher, Christine
Freund, James A.
Giardina, Christian
Germain, Sara J.
Gilbert, Gregory S.
Hao, Zhanqing
Hart, Terese
Hau, Billy C. H.
He, Fangliang
Hector, Andrew
Howe, Robert W.
Hsieh, Chang-Fu
Hu, Yue-Hua
Hubbell, Stephen P.
Inman-Narahari, Faith M.
Itoh, Akira
Janík, David
Abdul Rahman Kassim
Kenfack, David
Korte, Lisa
Král, Kamil
Larson, Andrew J.
Li, YiDe
Lin, Yiching
Liu, Shirong
Lum, Shawn Kaihekulani Yamauchi
Ma, Keping
Makana, Jean-Remy
Malhi, Yadvinder
McMahon, Sean M.
McShea, William J.
Memiaghe, Hervé R.
Mi, Xiangcheng
Morecroft, Michael
Musili, Paul M.
Myers, Jonathan A.
Novotny, Vojtech
de Oliveira, Alexandre
Ong, Perry
Orwig, David A.
Ostertag, Rebecca
Parker, Geoffrey G.
Patankar, Rajit
Phillips, Richard P.
Reynolds, Glen
Sack, Lawren
Song, Guo-Zhang M.
Su, Sheng-Hsin
Sukumar, Raman
Sun, I-Fang
Suresh, Hebbalalu S.
Swanson, Mark E.
Tan, Sylvester
Thomas, Duncan W.
Thompson, Jill
Uriarte, Maria
Valencia, Renato
Vicentini, Alberto
Vrška, Tomáš
Wang, Xugao
Weiblen, George D.
Wolf, Amy
Wu, Shu-Hui
Xu, Han
Yamakura, Takuo
Yap, Sandra
Zimmerman, Jess K.
Keywords: Social sciences::Geography
Issue Date: 2018
Source: Lutz, J. A., Furniss, T. J., Johnson, D. J., Davies, S. J., Allen, D., Alonso, A., . . . Zimmerman, J. K. (2018). Global importance of large-diameter trees. Global Ecology and Biogeography, 27(7), 849-864. doi:10.1111/geb.12747
Journal: Global Ecology and Biogeography
Abstract: Aim: To examine the contribution of large-diameter trees to biomass, stand structure, and species richness across forest biomes. Location: Global. Time period: Early 21st century. Major taxa studied: Woody plants. Methods: We examined the contribution of large trees to forest density, richness and biomass using a global network of 48 large (from 2 to 60 ha) forest plots representing 5,601,473 stems across 9,298 species and 210 plant families. This contribution was assessed using three metrics: the largest 1% of trees ≥ 1 cm diameter at breast height (DBH), all trees ≥ 60 cm DBH, and those rank-ordered largest trees that cumulatively comprise 50% of forest biomass. Results: Averaged across these 48 forest plots, the largest 1% of trees ≥ 1 cm DBH comprised 50% of aboveground live biomass, with hectare-scale standard deviation of 26%. Trees ≥ 60 cm DBH comprised 41% of aboveground live tree biomass. The size of the largest trees correlated with total forest biomass (r2 =.62, p <.001). Large-diameter trees in high biomass forests represented far fewer species relative to overall forest richness (r2 =.45, p <.001). Forests with more diverse large-diameter tree communities were comprised of smaller trees (r2 =.33, p <.001). Lower large-diameter richness was associated with large-diameter trees being individuals of more common species (r2 =.17, p =.002). The concentration of biomass in the largest 1% of trees declined with increasing absolute latitude (r2 =.46, p <.001), as did forest density (r2 =.31, p <.001). Forest structural complexity increased with increasing absolute latitude (r2 =.26, p <.001). Main conclusions: Because large-diameter trees constitute roughly half of the mature forest biomass worldwide, their dynamics and sensitivities to environmental change represent potentially large controls on global forest carbon cycling. We recommend managing forests for conservation of existing large-diameter trees or those that can soon reach large diameters as a simple way to conserve and potentially enhance ecosystem services.
ISSN: 1466-822X
DOI: 10.1111/geb.12747
Rights: © 2018 John Wiley & Sons Ltd. All rights reserved.
Fulltext Permission: none
Fulltext Availability: No Fulltext
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