Craig A. Aumann, Lisa A. Eby, and William F. Fagan. 2006. How transient patches affect population dynamics: the case of hypoxia and blue crabs. Ecological Monographs 76:415–438.

Appendix E. MPEG movies of model behaviors under three scenarios.

Introduction to Model Dynamics

Model dynamics are introduced by considering a case that we think most closely resembles the dissolved oxygen (DO) dynamics in the Neuse River estuary.

Scenario I: Altering Hypoxic Extent and Duration

This scenario focuses on the effect of increasing hypoxic duration (from short to fixed) at four maximum hypoxic extents (defined as the maximum percent of the estuary hypoxic over a season) on prey abundance and crab population dynamics.

Scenario II: Altering Prey Availability

This scenario examines how crab population dynamics are altered when the default food level used in Scenario I is decreased (causing food limitation) and increased (eliminating any possibility of food limitation). The three levels of food availability are crossed with the same four maximum hypoxic extents from Scenario I and run under a short hypoxic duration.

Scenario III: Altering Cannibalism Potential

The third scenario explores how crab population dynamics change when the cannibalism potential between interacting crabs is decreased and increased from the default value used in Scenarios I and II. The three cannibalism potentials are crossed with the same four maximum hypoxic extents and run under a short hypoxic duration.

All Movies

To enable easier navigation between all the different movies, they have also been listed in this table.

Help with Viewing the MPEG Movies