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- W4313117911 abstract "Abstract This chapter analyses a version of simple models of competition for a single resource between two species with different seasonal variation in their resource capture rates. This scenario had been shown to promote coexistence in earlier studies. The chapter shows that, for different parameters, the ability of species to coexist often decreases with greater differences in their season resource uptake patterns. In addition, a given pair species often has alternative outcomes, which may be two different coexistence outcomes, two exclusion outcomes, or coexistence and exclusion. This is related to the fact that a single consumer may also have several alternative attractors, due to interaction of the inherent consumer–resource cycle and the seasonality in capture rate. Most of the models assume a single resource type with logistic growth, but the qualitative results can also be found in systems with abiotic resource growth and systems with multiple resources. Longer period lengths for the cycle in capture rates favours coexistence over exclusion outcomes, and coexistence of multiple species at long period lengths is possible. Coexistence of seasonal and aseasonal species on a single resource can occur, and the same mechanism operates in systems with type II functional responses. The results have several general messages about seasonal systems: (1) increasing similarity can make coexistence more or less likely; (2) invasion ability often does not imply persistence in cases with multiple attractors, which includes many seasonal systems; (3) differences in seasonal responses often produce qualitatively different outcomes than do other types of resource segregation." @default.
- W4313117911 created "2023-01-06" @default.
- W4313117911 creator A5074260133 @default.
- W4313117911 date "2022-09-22" @default.
- W4313117911 modified "2023-09-27" @default.
- W4313117911 title "Competition in seasonal environments" @default.
- W4313117911 doi "https://doi.org/10.1093/oso/9780192895523.003.0008" @default.
- W4313117911 hasPublicationYear "2022" @default.
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