Optimal dispersal in ecological dynamics with Allee effect in metapopulations

Pires, Marcelo A.; Queirós, Sı́lvio M. Duarte

doi:10.1371/journal.pone.0218087

Cited by 16 publications

(6 citation statements)

References 46 publications

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“…effect in a stochastic metapopulation model, that maximizes the survival probability of the species, an agent based model was implemented by Pires and Duarte Queirós (2019), with an empirical underpinning.…”

Section: Unidirectional (One-way) Migrationmentioning

confidence: 99%

Unidirectional Migration of Populations with Allee Effect

2023

LiB

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In this note we consider two populations living on identical patches, connected by unidirectional migration, and subject to strong Allee eect. We show that by increasing the migration rate, there are more bifurcation sequences than previous works showed. In particular, the number of steady states can change from 9 (small migration) to 3 (large migration) at a single bifurcation point, or via a sequence of bifurcations with the system having 9, 7, 5, 3 steady states or 9, 7, 9, 3 steady states, depending on the Allee threshold. This is in contrast with the case of bidirectional migration, where the number of steady states always goes through the same bifurcation sequence of 9, 5, 3 steady states as we increase the migration rate, regardless of the value of the Allee threshold. These results have practical implications as well in spatial ecology.

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Section: Unidirectional (One-way) Migrationmentioning

confidence: 99%

Unidirectional Migration of Populations with Allee Effect

2023

LiB

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“…In addition, D. spatulifera tends to mate with the same subpopulation. This phenomenon will be followed by the alee effect gradually (Pires & Duarte Queirós 2019) and increase the potential of extinction (Hanski 2008).…”

Section: Variation Of Movement and Dispersalmentioning

confidence: 99%

Variations of Movement, Dispersal, and Morphometrics among Subpopulations of Javan Endemic Damselfly, <i>Drepanosticta spatulifera</i> (Odonata: Platystictidae) in Petungkriyono Forest

Nugrahaningrum

Soesilohadi

2021

J.Tropical Biodiversity Biotechnology

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Drepanosticta spatulifera is a Javan endemic damselfly. The population is spread unevenly in the Petungkriyono Forest and is threatened due to environmental pressure. The aims of this research are to know the variation of the movement, dispersal, and morphometric among subpopulations of D. spatulifera. Movement and dispersal variation data collection was done using Mark Release Recapture (MRR) for six weeks from early August until mid-September 2020. The collection of morphometric samples was done during the last week of the MRR survey and 46 individuals were measured with 12 continuous characters. During the MRR survey, 596 males of D. spatulifera were marked and 302 were recaptured. D. spatulifera had short movement and dispersal thus no individuals were found across the subpopulations. The distance moved of successive capture and net lifetime movement were dominantly less or equal to five meters. The duration of the MRRsurvey had a low correlation with the dispersal distance of D. spatulifera. In themorphometric variations, closer subpopulations tended to have a similar cluster ofmorphometric characters. Variation of distance moved between successive captureand wing size from Mangli Stream was significantly different from other sites. Thesubpopulation of Mangli, the farthest and higher altitude of the sites, had thehighest distance move, more disperse, and the largest wing size. Our study showedthat D. spatulifera was extremely sedentary damselfly. It will enhance inbreeding andvulnerability to extinction. Therefore, the interaction between the subpopulationsof D. spatulifera in the Petungkriyono Forest needs to be done more.

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“…For example, Molnár et al (2008) assumed the local rates of breeding pair formation to be proportional to the product of local female and male population densities. More recent work has investigated reaction–diffusion dynamics incorporating other types of Allee effects (Du et al, 2019; Wang et al, 2019; Wei et al, 2020), and Allee effects have also been extensively studied using metapopulation approaches (Amarasekare, 1998; Courchamp et al, 1999; Pires & Duarte Queirós, 2019).…”

Section: Introductionmentioning

confidence: 99%