Detection of periodic peaks in Karenia brevis concentration consistent with the time-delay logistic equation
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Abstract
The logistic equation models single-species population growth with a sigmoid curve that begins as exponential and ends with an asymptotic approach to a final population determined by natural system carrying capacity. But the population of a natural system often does not stabilize as it approaches carrying capacity. Instead, it exhibits periodic change, sometimes with very large amplitudes. The time-delay modification of the logistic equation accounts for this behavior by connecting the present rate of population growth to conditions at an earlier time. The periodic change in population with time can progress from a monotonic approach to the carrying capacity; to oscillation around the carrying capacity; to limit-cycle periodic change; and, finally, to chaotic change.
Study Area
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Detection of periodic peaks in Karenia brevis concentration consistent with the time-delay logistic equation |
| Series title | Science of the Total Environment |
| DOI | 10.1016/j.scitotenv.2024.174061 |
| Volume | 946 |
| Year Published | 2024 |
| Language | English |
| Publisher | Elsevier |
| Contributing office(s) | South Atlantic Water Science Center |
| Description | 174061, 13 p. |
| Country | United States |
| State | Florida |
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