P. S. Dutta

Efficacy of dynamic eigenvalue in anticipating and distinguishing tipping points

This paper evaluates the effectiveness of dynamic eigenvalue as an early warning signal for detecting tipping points and transitions in dynamical systems, highlighting its strengths and limitations.

Early warning signals are hampered by a lack of critical transitions in empirical lake data

This study evaluates early warning signals for ecological regime shifts in lake data and finds few critical transitions, with mixed performance of prediction methods.

Noise-induced symmetry breaking in a network of excitable ecological systems

The paper demonstrates noise-induced symmetry breaking in a network of excitable ecological systems, showing how noise and network structure lead to inhomogeneous steady states and asynchronous oscillations.

Tipping points in spatial ecosystems driven by correlated noise

This study examines how correlated noise affects tipping points in spatial ecosystems and evaluates early warning indicators for detecting these transitions.

Rising Temperature Drives Tipping Points in Mutualistic Networks

This study shows that rising temperatures can cause sudden collapse in mutualistic networks, with generalist species playing a key role in tipping points.

Machine learning methods trained on simple models can predict critical transitions in complex natural systems

This paper trains a deep neural network on simple models to predict critical transitions in complex systems, showing high reliability in detecting and classifying catastrophic vs. non-catastrophic transitions in real-world data.

Persistence and stability of interacting species in response to climate warming: The role of trophic structure

This study examines how climate warming affects species persistence and extinction in different trophic structures, finding that warming destabilizes species dynamics up to a threshold temperature, after which it stabilizes dynamics but leads to extinction of higher trophic species.

Robustness of early warning signals for catastrophic and non-catastrophic transitions

This study tests the effectiveness of early warning signals for different types of ecological regime shifts under various noise conditions and finds they work well for saddle-node bifurcations but not others.