Dispersal-mediated coexistence of competing predators

Theoretical Population Biology
T Namba, Chiemi Hashimoto

Abstract

Models of metapopulations have often ignored local community dynamics and spatial heterogeneity among patches. However, persistence of a community as a whole depends both on the local interactions and the rates of dispersal between patches. We study a mathematical model of a metacommunity with two consumers exploiting a resource in a habitat of two different patches. They are the exploitative competitors or the competing predators indirectly competing through depletion of the shared resource. We show that they can potentially coexist, even if one species is sufficiently inferior to be driven extinct in both patches in isolation, when these patches are connected through diffusive dispersal. Thus, dispersal can mediate coexistence of competitors, even if both patches are local sinks for one species because of the interactions with the other species. The spatial asynchrony and the competition-colonization trade-off are usual mechanisms to facilitate regional coexistence. However, in our case, two consumers can coexist either in synchronous oscillation between patches or in equilibrium. The higher dispersal rate of the superior prompts rather than suppresses the inferior. Since differences in the carrying capacity between two patch...Continue Reading

References

Jan 1, 1989·IMA Journal of Mathematics Applied in Medicine and Biology·P GrindrodS Sinha
May 9, 1998·Proceedings of the National Academy of Sciences of the United States of America·V A Jansen, J Yoshimura
Jan 8, 1999·Theoretical Population Biology·V A Jansen, K Sigmund
May 11, 1999·Trends in Ecology & Evolution·W D Koenig
Oct 8, 1999·Trends in Ecology & Evolution·O N BjørnstadX Lambin
Oct 19, 1999·The American Naturalist·Michel Loreau, Nicolas Mouquet
Jun 1, 2000·Theoretical Population Biology·S Muko, Y Iwasa
Apr 17, 2001·Theoretical Population Biology·V A Jansen
Apr 17, 2001·Theoretical Population Biology·S V Petrovskii, H Malchow
Jul 15, 2003·The American Naturalist·Benjamin M BolkerClaudia Neuhauser
Jun 1, 1951·Biometrika·J G SKELLAM
Jun 1, 1971·Proceedings of the National Academy of Sciences of the United States of America·R Levins, D Culver
Jul 24, 1992·Science·G R RobinsonE A Martinko
Aug 19, 2008·The American Naturalist·C T Codeço, J P Grover
Aug 19, 2008·The American Naturalist·P Amarasekare, R M Nisbet
Aug 19, 2008·The American Naturalist·Nicolas Mouquet, Michel Loreau
Jul 1, 1992·The American Naturalist·A R Ives
Jul 1, 1992·The American Naturalist·W W MurdochA Stewart-Oaten
Sep 1, 1995·Trends in Ecology & Evolution·J Bascompte, R V Solé
Aug 1, 1996·Trends in Ecology & Evolution·P C Dias

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.