2016
DOI: 10.1002/ece3.1930
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Nested species interactions promote feasibility over stability during the assembly of a pollinator community

Abstract: The foundational concepts behind the persistence of ecological communities have been based on two ecological properties: dynamical stability and feasibility. The former is typically regarded as the capacity of a community to return to an original equilibrium state after a perturbation in species abundances and is usually linked to the strength of interspecific interactions. The latter is the capacity to sustain positive abundances on all its constituent species and is linked to both interspecific interactions … Show more

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Cited by 82 publications
(142 citation statements)
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“…First, we found a comparatively small but thought‐provoking negative relationship between the controllability of a network and its nestedness. Previous studies indicate that nestedness promotes species coexistence and confers robustness to extinction (Bastolla et al, ; Memmott et al, ) even at the expense of the dynamic stability of the mutualistic community (Saavedra et al, ). These observations are in agreement with our results, as we would expect the dynamic stability (the ability to return to equilibrium after a perturbation in species abundances) of a community to be correlated to the difficulty to control it.…”
Section: Discussionmentioning
confidence: 99%
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“…First, we found a comparatively small but thought‐provoking negative relationship between the controllability of a network and its nestedness. Previous studies indicate that nestedness promotes species coexistence and confers robustness to extinction (Bastolla et al, ; Memmott et al, ) even at the expense of the dynamic stability of the mutualistic community (Saavedra et al, ). These observations are in agreement with our results, as we would expect the dynamic stability (the ability to return to equilibrium after a perturbation in species abundances) of a community to be correlated to the difficulty to control it.…”
Section: Discussionmentioning
confidence: 99%
“…To allow comparison across communities, the structural stability values were scaled within each network to have a mean of zero and a standard deviation of one. Here, we assume values of the mutualistic trade-off and mean interspecific competition of δ = 0 and ρ = 0.01 respectively (Saavedra et al, 2016). However, the choice of these parameters does not affect the results (Supporting Information S4) the effects that the other species have in the community.…”
Section: Discussionmentioning
confidence: 99%
“…Yet, ecological communities are dynamic and permanently changing ( Grant and Grant, 2014;Saavedra et al, 2016a;2016b ). Thus, the challenge is to integrate the information given by changes of species interactions under a systematic analysis of the feasibility domain Saavedra et al, 2017a ).…”
Section: Changes Of Species Interactions and Feasibilitymentioning
confidence: 99%
“…This normalized solid angle ( A ) can be efficiently computed via a quasi-Monte Carlo method for even relatively large communities ( Genz and Bretz, 2002;Saavedra et al, 2016b ). The code in R to compute this probability is archived on GitHub.…”
Section: Probabilistic Interpretation Of Feasibilitymentioning
confidence: 99%
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