Concept

Metapopulation

Related publications (32)

Modelling human movement in cholera spreading along fluvial systems

Andrea Rinaldo, Enrico Bertuzzo, Lorenzo Righetto, Marino Gatto

We propose an important extension of a previously studied, spatially explicit and hydrology-driven, model of cholera spreading. Our reformulation concerns the role of different modelizations of human movement on the overall dynamics of the epidemics, which ...

2011

Effects of Connectivity and Recurrent Local Disturbances on Community Structure and Population Density in Experimental Metacommunities

Andrea Rinaldo, Francesco Carrara, Florian Altermatt

Metacommunity theory poses that the occurrence and abundance of species is a product of local factors, including disturbance, and regional factors, like dispersal among patches. While metacommunity ideas have been broadly tested there is relatively little ...

Public Library of Science2011

Effects of Colonization Asymmetries on Metapopulation Persistence

Olivier Lévêque, Séverine Vuilleumier Varisco

Ocean currents, prevailing winds, and the hierarchical structures of river networks are known to create asymmetries in re-colonization between habitat patches. The impacts of such asymmetries on metapopulation persistence are seldom considered, especially ...

Elsevier2010

How patch configuration affects the impact of disturbances on metapopulation persistence

Séverine Vuilleumier Varisco

Disturbances affect metapopulations directly through reductions in population size and indirectly through habitat modification. We consider how metapopulation persistence is affected by different disturbance regimes and the way in which disturbances spread ...

Elsevier2007

On biodiversity in river networks: A trade-off metapopulation model and comparative analysis

Andrea Rinaldo

A discrete, structured metapopulation model is coupled with the strictly hierarchical competition-colonization trade-off model, in which competitively superior species have lower fecundity rates and thus lower colonizing ability, to study the resulting bio ...

2007

Invasion an fixation of sex-reversal genes

Séverine Vuilleumier Varisco

We simulated a meta-population with random dispersal among demes but local mating within demes to investigate conditions under which a dominant female-determining gene W, with no individual selection advantage, can invade and become fixed in females, chang ...

Wiley-Blackwell2007

A neutral metapopulation model of biodiversity in river networks

Andrea Rinaldo

In this paper, we develop a stochastic, discrete, structured meta population model to explore the dynamics and patterns of biodiversity of riparian vegetation. In the model, individual plants spread along a branched network via directional dispersal and un ...

2007

Does colonisation asymmetry matter in metapopulations?

Séverine Vuilleumier Varisco

Despite the considerable evidence showing that dispersal between habitat patches is often asymmetric, most of the metapopulation models assume symmetric dispersal. In this paper, we develop a Monte Carlo simulation model to quantify the effect of asymmetri ...

2006

Effects of cognitives abilities on metapopulation connectivity

Séverine Vuilleumier Varisco, Nicolas Perrin

Connectivity among demes in a metapopulation depends on both the landscape's and the focal organism's properties (including its mobility and cognitive abilities). Using individual-based simulations, we contrast the consequences of three different cognitive ...

2006

How does the landscape affect patch occupancy in metapopulation models? Comparing Euclidean vs landscape-based inter-patch distance

Rodolphe Schlaepfer, Flavio Zanini

Dispersal barriers and corridors between habitat patches can strongly affect colonization processes, and therefore patch occupation probability. However, most metapopulation dynamic models assume that heterogeneity in the landscape between patches can be n ...

2006

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