Environmental Variability Promotes Coexistence in Lottery Competitive Systems

Chesson, Peter; Warner, Robert R.

doi:10.1086/283778

Cited by 1,122 publications

(1,135 citation statements)

References 22 publications

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“…Following Chesson (1978Chesson ( , 1981Chesson ( , 1982, we have used a stochastic boundedness criterion to judge whether a structured population living in an random environment is persistent. In the words of Chesson (1982), This criterion requires that the probability of observing a population below any given density, should converge to zero with density, uniformly in time.…”

Section: Discussionmentioning

confidence: 99%

“…One theoretical approach to understanding persistence is evaluating the "stochastic" per-capita growth rate of a population when rare (Gillespie 1973;Turelli 1978;Turelli and Petry 1980;Chesson and Warner 1981;Bulmer 1985;Caswell 2001). Intuitively, if the stochastic growth rate is positive, the population tends to increase when rare and, consequently, is more likely to persist.…”

Section: Introductionmentioning

confidence: 99%

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Persistence of structured populations in random environments

Benaı̈m

Schreiber

2009

Theoretical Population Biology

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Persistence of structured populations in random environments

Benaı̈m

Schreiber

2009

Theoretical Population Biology

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“…However, under some circumstances environmental stochasticity may become a stabilizing mechanism, as suggested by Chesson and collaborators [19][20][21]. These authors show that environmental variations may enhance the chance of invasion of low-abundance species via the storage effect: rare species, when compared with common species, have fewer per-capita losses when their fitness is low and more gains when their fitness is high.…”

Section: Introductionmentioning

confidence: 94%

Stability of two-species communities: Drift, environmental stochasticity, storage effect and selection

Danino

Kessler

Shnerb

2018

Theoretical Population Biology

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The dynamics of two competing species in a finite size community is one of the most studied problems in population genetics and community ecology. Stochastic fluctuations lead, inevitably, to the extinction of one of the species, but the relevant timescale depends on the underlying dynamics. The persistence time of the community has been calculated for neutral models, where the only drive of the system is drift (demographic stochasticity) and for models with strong selection. Following recent analyses that stress the importance of environmental stochasticity in empirical systems, we present here a general theory of persistence time of two-species community where drift, environmental variations and time independent selective advantage are all taken into account.

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“…Recently, Kelly and Bowler (2002) advanced this idea as a test of the storage effect in forest trees. They based their predictions on a particular version of the lottery model (Chesson and Warner, 1981) where only one species is sensitive to the environment, with the environment fluctuating between two states only. However, no systematic exploration of the use of patterns of recruitment fluctuations to test the storage effect has been done.…”

Section: Past Approaches To Testing the Storage Effectmentioning

confidence: 99%

Quantifying and testing coexistence mechanisms arising from recruitment fluctuations

Chesson

2003

Theoretical Population Biology

154

240

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Temporal fluctuations in recruitment are involved in two distinct coexistence mechanisms, the storage effect and relative nonlinearity of competition, which may act simultaneously to stabilize species coexistence. It is shown that comparisons of recruitment variation between species at high versus low densities can test whether these mechanisms are responsible for stable coexistence. Moreover, under certain circumstances, these comparisons can measure the total coexistence stabilizing effect of the mechanism. These comparisons are clearest for the situation of an invader (a species perturbed to low density) in the presence of its competitors, termed residents. Then average invader-resident differences in the variances of log recruitment, potentially weighted by adult survival rates and species' sensitivities to competition, are proportional to the overall stabilizing effect of the storage effect and relative nonlinearity of competition. Less effective comparisons are available for species naturally at high and low densities or with substantial mean differences in average fitness. These developments lead also to a technique of partitioning the long-term lowdensity growth rate of a species into community average measures of stabilizing mechanisms, deviations from these measures, and other factors. The community average measure is argued as most appropriate for understanding the ability of a coexistence mechanism to stabilize coexistence. Individual species' deviations from the community average indicate the ways in a which a coexistence mechanism may affect average fitness differences between species either enhancing or diminishing the ability of a given set of species to coexist, depending on other factors. This approach provides a general new tool for analyzing species coexistence. r

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Environmental Variability Promotes Coexistence in Lottery Competitive Systems

Cited by 1,122 publications

References 22 publications

Persistence of structured populations in random environments

Persistence of structured populations in random environments

Stability of two-species communities: Drift, environmental stochasticity, storage effect and selection

Quantifying and testing coexistence mechanisms arising from recruitment fluctuations

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