Aggregation as an antipredator strategy in the rock-paper-scissors model

Menezes, J.; Rangel, E.; Moura, Beatriz

doi:10.1016/j.ecoinf.2022.101606

Cited by 26 publications

(15 citation statements)

References 40 publications

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“…In this work, organisms' movement follows the random walk theory [37,25]. However, organisms may move towards the most attractive direction if motivated by a behavioural survival strategy [27,30]. Although some behavioural movement strategies have been studied in the context of cyclic models, environmental mobility restrictions have not been addressed yet.…”

Section: Discussionmentioning

confidence: 99%

“…Although some behavioural movement strategies have been studied in the context of cyclic models, environmental mobility restrictions have not been addressed yet. The mobility unevenness may impact the performance of a slow or a fast species when performing gregarious movement, for example, altering the results of the antipredator strategy [30].…”

Section: Discussionmentioning

confidence: 99%

“…For this reason, a number of stochastic models have been proposed to study the impact of mobility in cyclic models, both for organisms moving according to the random walk theory or directionally, performing attack or defence strategies [25][26][27][28][29][30][31][32]. Furthermore, attention has been given to understanding the effects of the unbalanced selection or reproduction activity among species [33][34][35].…”

Section: Introductionmentioning

confidence: 99%

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Mobility unevenness in rock-paper-scissors models

Menezes¹,

S.²,

Batista³

2022

Preprint

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We investigate a tritrophic system whose cyclic dominance is modelled by the rock-paper-scissors game. We consider that organisms of one or two species are affected by movement limitations, which unbalances the cyclic spatial game. Performing stochastic simulations, we show that mobility unevenness controls the population dynamics. In the case of one slow species, the predominant species depends on the level of mobility restriction, with the slow species being preponderant if the mobility limitations are substantial. If two species face mobility limitations, our outcomes show that being higher dispersive does not constitute an advantage in terms of population growth. On the contrary, if organisms move with higher mobility, they expose themselves to enemies more frequently, being more vulnerable to being eliminated. Finally, our findings show that biodiversity benefits in regions where species are slowed. Biodiversity loss for high mobility organisms, common to cyclic systems, may be avoided with coexistence probability being higher for robust mobility limitations. Our results may help biologists understand the dynamics of unbalanced spatial systems where organisms' dispersal is fundamental to biodiversity conservation.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Mobility unevenness in rock-paper-scissors models

Menezes¹,

S.²,

Batista³

2022

Preprint

Self Cite

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“…In this popular game, scissors cut paper, paper wraps rock, rock crushes scissors, describing the selection interaction among species [20,21] -the same cyclic dominance has been reported in systems of lizards and coral reefs [22,23]. This has motivated many authors to propose a number of numerical models based on stochastic simulations of the spatial rock-paper-scissors game where individuals may move motivated by attack or defence strategies [24][25][26][27][28][29].…”

Section: Introductionmentioning

confidence: 88%

Adaptive movement strategy in rock-paper-scissors models

Tenorio,

Rangel,

Menezes

2022

Preprint

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Organisms may respond to local stimuli that benefit or threaten their fitness. The adaptive movement behaviour may allow individuals to adjust their speed to maximise the chances of being in comfort zones, where death risk is minimal. We investigate spatial cyclic models where the rock-paper-scissors game rules describe the nonhierarchical dominance. We assume that organisms of one out of the species can control the mobility rate in response to the information obtained from scanning the environment. Running a series of stochastic simulations, we quantify the effects of the movement strategy on the spatial patterns and population dynamics. Our findings show that the ability to change mobility to adapt to environmental clues is not reflected in an advantage in cyclic spatial games. The adaptive movement provokes a delay in the spatial domains occupied by the species in the spiral waves, making the group more vulnerable to the advance of the dominant species and less efficient in taking territory from the dominated species. Our outcomes also show that the effects of adaptive movement behaviour accentuate whether most individuals have a long-range neighbourhood perception. Our results may be helpful for biologists and data scientists to comprehend the dynamics of ecosystems where adaptive processes are fundamental.

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“…iv) how tight should organisms' mobility be restricted to maximise that protection against infection of a varying virulence disease? Our stochastic simulations are based on the May-Leonard implementation of the rock-paper-scissors Model, where organisms interact locally, but the number of individuals is not conserved [37][38][39][40][41][42][43][44][45][46][47]. We assume a person-to-person disease transmission, which may affect all healthy organisms, irrespective of the species -no individual or species is immune to the viral infection [48][49][50][51][52].…”

Section: Introductionmentioning

confidence: 99%