The Nature of Plant Communities

Wilson, J. Bastow; Agnew, A. D. Q.; Roxburgh, Stephen H.

doi:10.1017/9781108612265

Cited by 9 publications

(10 citation statements)

References 1,180 publications

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“…The decline in resilience is consistent with the definition of an equalizing mechanism, even though this does not necessarily mean that the community is less stable with local dispersal. We expect a similar drop in the antagonist of resilience, the resistance [56], because this would lead to delayed responses, as described in the above definition. Resistance, however, is almost impossible to measure in the field [56], Unfortunately, this prevented us from including resistance in our analysis.…”

Section: Discussionmentioning

confidence: 86%

“…In order to differentiate between asymptotic stability (classical competition) and neutral stability (resource competition), we followed the guidelines of Grimm and Wissel [55] and investigated two stability properties on the community scale: "staying essentially unchanged" (constancy [55], reliability [56], or "temporal stability" [56,57]) and "returning to the reference state after a temporary perturbation" (resilience [55,56,58]) of stem volumes for Rhizophora spec. 1 and 2.…”

Section: Conducting Mesofon Simulation Experimentsmentioning

confidence: 99%

“…Both kinds of simulation runs were initialized with equal sapling numbers of their respective species. Then, constancy, the lack of change in spite of minor perturbations [56] (here, due to demographic stochasticity), was measured by the mean/standard deviation of the stem volumes (as in [57]), both computed over the steady state phase of the simulation runs.…”

Section: Conducting Mesofon Simulation Experimentsmentioning

confidence: 99%

“…Following Wilson et al [56], we defined the term "resilience" as the rate by which a system returns to an equilibrium following a pulse perturbation. In our case, the system is the community consisting of the two identical species, the equilibrium is the potential reference state referred to above, and assigning a fraction of Rhizophora spec.…”

Section: Conducting Mesofon Simulation Experimentsmentioning

confidence: 99%

“…This kind of perturbation is notably different from the more practicable disturbancerelated approach in the form of manipulative removal experiments commonly applied in field ecology, but it is readily available in IBMs and is ideally suited to examine the stability of the species composition in a community according to the definition given by [56]. For the sake of simplicity, we considered unequal initial sapling numbers (735/15, see below) as a displacement from the reference state.…”

Section: Conducting Mesofon Simulation Experimentsmentioning

confidence: 99%

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Stable Coexistence in a Field-Calibrated Individual-Based Model of Mangrove Forest Dynamics Caused by Inter-Specific Crown Plasticity

Grueters

Ibrahim

Schmidt³

et al. 2021

Forests

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(1,2) In this theoretical study, we apply MesoFON, a field-calibrated individual-based model of mangrove forest dynamics, and its Lotka–Volterra interpretations to address two questions: (a) Do the dynamics of two identical red mangrove species that compete for light resources and avoid inter-specific competition by lateral crown displacement follow the predictions of classical competition theory or resource competition theory? (b) Which mechanisms drive the dynamics in the presence of inter-specific crown plasticity when local competition is combined with global or with localized seed dispersal? (3) In qualitative support of classical competition theory, the two species can stably coexist within MesoFON. However, the total standing stock at equilibrium matched the carrying capacity of the single species. Therefore, a “non-overyielding” Lotka–Volterra model rather than the classic one approximated best the observed behavior. Mechanistically, inter-specific crown plasticity moved heterospecific trees apart and pushed conspecifics together. Despite local competition, the community exhibited mean-field dynamics with global dispersal. In comparison, localized dispersal slowed down the dynamics by diminishing the strength of intra-/inter-specific competition and their difference due to a restriction in the competitive race to the mean-field that prevails between conspecific clusters. (4) As the outcome in field-calibrated IBMs is mediated by the competition for resources, we conclude that classical competition mechanisms can override those of resource competition, and more species are likely to successfully coexist within communities.

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Section: Discussionmentioning

confidence: 86%

Section: Conducting Mesofon Simulation Experimentsmentioning

confidence: 99%

Section: Conducting Mesofon Simulation Experimentsmentioning

confidence: 99%

Section: Conducting Mesofon Simulation Experimentsmentioning

confidence: 99%

Section: Conducting Mesofon Simulation Experimentsmentioning

confidence: 99%

See 3 more Smart Citations

Stable Coexistence in a Field-Calibrated Individual-Based Model of Mangrove Forest Dynamics Caused by Inter-Specific Crown Plasticity

Grueters

Ibrahim

Schmidt³

et al. 2021

Forests

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Competition–colonization dynamics and multimodality in diversity–disturbance relationships

Liao

Barabás

Bearup

2022

Ecology

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Disturbance has long been recognized as a critical driver of species diversity in community ecology. Recently, it has been found that the well-known intermediate disturbance hypothesis, which predicts a unimodal diversity-disturbance relationship (DDR), fails to describe numerous experimental observations, as empirical DDRs are diverse. Consequently, the precise form of the DDR remains a topic of debate. Here we develop a simple yet comprehensive metacommunity framework that can account for complex competition patterns.Using both numerical simulations and analytical arguments, we show that strongly multimodal DDRs arise naturally, and this multimodality is quite robust to changing parameters or relaxing the assumption of a strict competitive hierarchy. Having multimodality as a robust property of DDRs in competition models suggests that much of the noise observed in empirical DDRs could be a critical signature of the underlying competitive dynamics.

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Nine decades of major compositional changes in a Central European beech forest protected area

2020

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The Nature of Plant Communities

Cited by 9 publications

References 1,180 publications

Stable Coexistence in a Field-Calibrated Individual-Based Model of Mangrove Forest Dynamics Caused by Inter-Specific Crown Plasticity

Stable Coexistence in a Field-Calibrated Individual-Based Model of Mangrove Forest Dynamics Caused by Inter-Specific Crown Plasticity

Competition–colonization dynamics and multimodality in diversity–disturbance relationships

Nine decades of major compositional changes in a Central European beech forest protected area

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