Biodiversity is dynamic: in many ecosystems, population sizes fluctuate — sometimes strongly — over time. Simulation: fluctuating growth, limits from interactions, and a steady trickle of immigration ...

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Complex systems – from ecosystems and power grids to supply chains and social networks – can sometimes collapse or surge unexpectedly after minor disturbances. Why do some systems collapse suddenly ...

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Why do some systems collapse suddenly after what seems like a minor disturbance? A single transmission line failure can cascade into widespread blackouts. A delayed shipment can ripple through a ...