Zobrazeno 1 - 10
of 127
pro vyhledávání: '"Azaele, Sandro"'
We investigate a disordered multi-dimensional linear system in which the interaction parameters vary stochastically in time with defined temporal correlations. We refer to this type of disorder as "annealed", in contrast to quenched disorder in which
Externí odkaz:
http://arxiv.org/abs/2405.05183
Autor:
Padmanabha, Prajwal, Nicoletti, Giorgio, Bernardi, Davide, Suweis, Samir, Azaele, Sandro, Rinaldo, Andrea, Maritan, Amos
Metapopulation models have been instrumental in demonstrating the ecological impact of landscape structure on the survival of a focal species in complex environments. However, extensions to multiple species with arbitrary dispersal networks often rel
Externí odkaz:
http://arxiv.org/abs/2404.09908
Autor:
Saeedian, Meghdad, Tu, Chengyi, Menegazzo, Fabio, D'Odorico, Paolo, Azaele, Sandro, Suweis, Samir
Games with environmental feedback have become a crucial area of study across various scientific domains, modelling the dynamic interplay between human decisions and environmental changes, and highlighting the consequences of our choices on natural re
Externí odkaz:
http://arxiv.org/abs/2403.10938
Laboratory experiments with bacterial colonies, under well-controlled conditions often lead to evolutionary diversification, where at least two ecotypes emerge from an initially monomorphic population. Empirical evidence suggests that such "evolution
Externí odkaz:
http://arxiv.org/abs/2307.11033
In this work, we explore the dynamics of species abundances within ecological communities using the Generalized Lotka-Volterra (GLV) model. At variance with previous approaches, we present an analysis of stochastic GLV dynamics with temporal fluctuat
Externí odkaz:
http://arxiv.org/abs/2307.02851
Autor:
Azaele, Sandro, Maritan, Amos
We investigate the Generalized Lotka-Volterra (GLV) equations, a central model in theoretical ecology, where species interactions are assumed to be fixed over time and heterogeneous (quenched noise). Recent studies have suggested that the stability p
Externí odkaz:
http://arxiv.org/abs/2306.13449
Systems that evolve towards a state from which they cannot depart are common in nature. But the fluctuation-dissipation theorem, a fundamental result in statistical mechanics, is mainly restricted to systems near-stationarity. In processes with absor
Externí odkaz:
http://arxiv.org/abs/2204.02543
Effect of delay on the emergent stability patterns in Generalized Lotka-Volterra ecological dynamics
Understanding the conditions of feasibility and stability in ecological systems is a major challenge in theoretical ecology. The seminal work of May in 1972 and recent developments based on the theory of random matrices have shown the existence of em
Externí odkaz:
http://arxiv.org/abs/2110.11914
Local coexistence of species in large ecosystems is traditionally explained within the broad framework of niche theory. However, its rationale hardly justifies rich biodiversity observed in nearly homogeneous environments. Here we consider a consumer
Externí odkaz:
http://arxiv.org/abs/2104.01256
Publikováno v:
Phys. Rev. E 102, 052116 (2020)
In the classical stochastic resetting problem, a particle, moving according to some stochastic dynamics, undergoes random interruptions that bring it to a selected domain, and then, the process recommences. Hitherto, the resetting mechanism has been
Externí odkaz:
http://arxiv.org/abs/2007.12417