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Mechanisms of monodominance in diverse tropical tree-dominated systems

Mechanisms of monodominance in diverse tropical tree-dominated systems
Mechanisms of monodominance in diverse tropical tree-dominated systems
1.?The existence of many types of monodominant forests is readily explainable by ecological theory (e.g. early successional forests). Nevertheless, monodominant stands sometimes occur in areas where a much higher diversity typically occurs. Such ‘classical monodominance’ is not currently readily explained by ecological theory.

2.?We briefly review the published mechanisms suggested to cause classical monodominance and then combine them into a new probabilistic conceptual framework to better understand why these systems occur. We build on two theories proposed to explain monodominance: a lack of exogenous disturbance over long periods and species-specific life-history traits. We suggest that certain traits under certain conditions may generate positive feedbacks leading to a greater probability of monodominance being achieved. Such positive feedbacks have the potential to drive a typically diverse system towards a monodominant one.

3.?Synthesis. Classical monodominance in tropical forests is hypothesized to be attained when a group of traits occur together under low exogenous disturbance conditions, this giving rise to a series of positive feedbacks. The presented framework links the differing mechanisms proposed in the literature to explain classical monodominance and shows there are potentially alternative routes to monodominance, thus reconciling apparently contradictory observational and experimental results.
competitive exclusion, disturbance, diversity, life-history traits, low-diversity forests, mixed forests, plant population and community dynamics, positive feedback, single-species dominance, tropical forest
891-898
Peh, Kelvin S.-H.
0bd60207-dad8-43fb-a84a-a15e09b024cc
Lewis, Simon L.
0442a91d-93f1-48ee-aca3-1a4757f0c7fa
Lloyd, Jon
e0fc723c-e3bd-49e1-8f60-14f34090ae34
Peh, Kelvin S.-H.
0bd60207-dad8-43fb-a84a-a15e09b024cc
Lewis, Simon L.
0442a91d-93f1-48ee-aca3-1a4757f0c7fa
Lloyd, Jon
e0fc723c-e3bd-49e1-8f60-14f34090ae34

Peh, Kelvin S.-H., Lewis, Simon L. and Lloyd, Jon (2011) Mechanisms of monodominance in diverse tropical tree-dominated systems. Journal of Ecology, 99 (4), 891-898. (doi:10.1111/j.1365-2745.2011.01827.x).

Record type: Article

Abstract

1.?The existence of many types of monodominant forests is readily explainable by ecological theory (e.g. early successional forests). Nevertheless, monodominant stands sometimes occur in areas where a much higher diversity typically occurs. Such ‘classical monodominance’ is not currently readily explained by ecological theory.

2.?We briefly review the published mechanisms suggested to cause classical monodominance and then combine them into a new probabilistic conceptual framework to better understand why these systems occur. We build on two theories proposed to explain monodominance: a lack of exogenous disturbance over long periods and species-specific life-history traits. We suggest that certain traits under certain conditions may generate positive feedbacks leading to a greater probability of monodominance being achieved. Such positive feedbacks have the potential to drive a typically diverse system towards a monodominant one.

3.?Synthesis. Classical monodominance in tropical forests is hypothesized to be attained when a group of traits occur together under low exogenous disturbance conditions, this giving rise to a series of positive feedbacks. The presented framework links the differing mechanisms proposed in the literature to explain classical monodominance and shows there are potentially alternative routes to monodominance, thus reconciling apparently contradictory observational and experimental results.

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More information

e-pub ahead of print date: 18 March 2011
Published date: July 2011
Keywords: competitive exclusion, disturbance, diversity, life-history traits, low-diversity forests, mixed forests, plant population and community dynamics, positive feedback, single-species dominance, tropical forest
Organisations: Centre for Biological Sciences

Identifiers

Local EPrints ID: 352974
URI: http://eprints.soton.ac.uk/id/eprint/352974
PURE UUID: 7ae84331-fad0-4711-80e5-19ae6b69dfaa
ORCID for Kelvin S.-H. Peh: ORCID iD orcid.org/0000-0002-2921-1341

Catalogue record

Date deposited: 22 May 2013 12:13
Last modified: 26 Nov 2019 01:37

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