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Soil nitrogen concentration mediates the relationship between leguminous trees and neighbor diversity in tropical forests

Xu, Han; Detto, Matteo; Fang, Suqin; Chazdon, Robin L.; Li, Yide; Hau, Billy C.H.; Fischer, Gunter A.; Weiblen, George D.; Hogan, J. Aaron; Zimmerman, Jess K.; Uriarte, Maria; Thompson, Jill ORCID: https://orcid.org/0000-0002-4370-2593; Lian, Juyu; Cao, Ke; Kenfack, David; Alonso, Alfonso; Bissiengou, Pulchérie; Memiaghe, Hervé Roland; Valencia, Renato; Yap, Sandra L.; Davies, Stuart J.; Mi, Xiangcheng; Yao, Tze Leong. 2020 Soil nitrogen concentration mediates the relationship between leguminous trees and neighbor diversity in tropical forests. Communications Biology, 3, 317. 8, pp. https://doi.org/10.1038/s42003-020-1041-y

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Abstract/Summary

Legumes provide an essential service to ecosystems by capturing nitrogen from the atmosphere and delivering it to the soil, where it may then be available to other plants. However, this facilitation by legumes has not been widely studied in global tropical forests. Demographic data from 11 large forest plots (16–60 ha) ranging from 5.25° S to 29.25° N latitude show that within forests, leguminous trees have a larger effect on neighbor diversity than non-legumes. Where soil nitrogen is high, most legume species have higher neighbor diversity than non-legumes. Where soil nitrogen is low, most legumes have lower neighbor diversity than non-legumes. No facilitation effect on neighbor basal area was observed in either high or low soil N conditions. The legume–soil nitrogen positive feedback that promotes tree diversity has both theoretical implications for understanding species coexistence in diverse forests, and practical implications for the utilization of legumes in forest restoration.

Item Type: Publication - Article
Digital Object Identifier (DOI): https://doi.org/10.1038/s42003-020-1041-y
UKCEH and CEH Sections/Science Areas: Biodiversity (Science Area 2017-)
ISSN: 2399-3642
Additional Information. Not used in RCUK Gateway to Research.: Open Access paper - full text available via Official URL link.
Additional Keywords: biodiversity, community ecology, tropical ecology
NORA Subject Terms: Ecology and Environment
Date made live: 05 Jul 2020 21:45 +0 (UTC)
URI: https://nora.nerc.ac.uk/id/eprint/528090

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