Conference Agenda
Overview and details of the sessions of this conference. Please select a date or location to show only sessions at that day or location. Please select a single session for detailed view (with abstracts and downloads if available).
Please note that all times are shown in the time zone of the conference. The current conference time is: 24th Aug 2026, 04:44:14am America, Santiago
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Daily Overview |
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Student Paper (SP) 01 Location: Room 07: Antartica | |
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8:20am - 8:30am
Adaptation and Stability Analysis of the May–Holling–Tanner Model Applied to the Anchovy–Pelican System in the Humboldt Current Universidad San Ignacio de Loyola - (PE), Perú This work adapts a non-linear model with a ratio-dependent functional response to analyze the trophic interaction between the Peruvian anchoveta (Engraulis ringens) and the Peruvian pelican (Pelecanus thagus) in the Humboldt Current ecosystem. Beyond classifying local stability, the study introduces the estimation of the characteristic recovery time τ≈1/|λdom | based on the dominant eigenvalue, allowing for the quantification of the system's dynamic resilience. Under baseline conditions, a stable node is obtained with approx λdom ≈-0.10, implying a recovery time of nearly 10 years. Under a severe El Niño scenario (r = 0.15, c = 2.0), the dominant eigenvalue approaches 0.02, extending the recovery time to approximately 50 years and reducing the Jacobian determinant by 89%. Although formal stability is maintained, a significant degradation of the dynamic margin is evident. This study allows for the detection of structural fragility before an observable collapse occurs, providing an additional quantitative criterion for ecological resilience assessment. | |