Persistence and size of seasonal populations on a consumer–resource relationship depends on the allocation strategy toward life-history functions

The long-term ecological dynamics of a population inhabiting a seasonal environment is analyzed using a semi-discrete or impulsive system to represent the consumer–resource interaction. The resource corresponds to an incoming energy flow for consumers that is allocated to reproduction as well as to...

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Bibliographic Details
Published in:Scientific reports 2020-12, Vol.10 (1), p.21401-21401, Article 21401
Main Authors: Gutiérrez, Rodrigo, Córdova-Lepe, Fernando, Moreno-Gómez, Felipe N., Velásquez, Nelson A.
Format: Article
Language:English
Subjects:
631/158/1144
631/158/1745
Animals
Consumers
Ecosystem
Energy flow
Humanities and Social Sciences
Life history
Models, Theoretical
multidisciplinary
Offspring
Phenotype
Population
Population Density
Population Dynamics
Population number
Population studies
Reproduction
Science
Science (multidisciplinary)
Seasons
Species extinction
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Summary:The long-term ecological dynamics of a population inhabiting a seasonal environment is analyzed using a semi-discrete or impulsive system to represent the consumer–resource interaction. The resource corresponds to an incoming energy flow for consumers that is allocated to reproduction as well as to maintenance in each non-reproductive season. The energy invested in these life-history functions is used in reproductive events, determining the size of the offspring in each reproductive season. Two long-term dynamic patterns are found, resulting in either the persistence or the extinction of the population of consumers. In addition, our model indicates that only one energy allocation strategy provides an optimal combination between individual consumption and long-term population size. The current study contributes to the understanding of how the individual-level and the population-level are interrelated, exhibiting the importance of incorporating phenotypic traits in population dynamics.
ISSN:2045-2322
2045-2322
DOI:10.1038/s41598-020-77326-1