Interplay between Local Dynamics and Dispersal in Discrete-time Metapopulation Models

✍ Scribed by ABDUL-AZIZ YAKUBU; CARLOS CASTILLO-CHAVEZ

• Publisher: Elsevier Science
• Year: 2002
• Tongue: English
• Weight: 592 KB
• Volume: 218
• Category: Article
• ISSN: 0022-5193
• DOI: 10.1006/jtbi.2002.3075

✦ Synopsis

The effects of synchronous dispersal on discrete-time metapopulation dynamics with local (patch) dynamics of the same (compensatory or overcompensatory) or mixed (compensatory and overcompensatory) types are explored. Single-species metapopulation models behave as single-species single-patch models, whenever all local patches are governed by compensatory dynamics. Dispersal gives rise to multiple attractors with complex basin structures, whenever some local patches are under overcompensatory dynamics. In mixed systems, dispersal is capable of altering the local dynamics from compensatory to overcompensatory dynamics and vice versa. Examples are provided of metapopulation models supporting multiple attractors with intermingled basins of attraction.