Loading
Landscape connectivity and predator-prey population dynamics
Author(s): Baggio, J. A., K. Salau, M. A. Janssen, M. L. Schoon, Ö. Bodin
In: Landscape Ecology 26(1): 33-45
Year: 2011
Type: Journal / article
Link to centre authors: Bodin, Örjan.
Full reference: Baggio, J. A., K. Salau, M. A. Janssen, M. L. Schoon, Ö. Bodin (2011), “Landscape connectivity and predator-prey population dynamics”, Landscape Ecology 26(1): 33-45
Publication review
Landscapes are increasingly fragmented, and conservation programs have started to look at network approaches for maintaining populations at a larger scale.

We present an agent-based model of predator—prey dynamics where the agents (i.e. the individuals of either the predator or prey population) are able to move between different patches in a landscaped network.

We then analyze population level and coexistence probability given node-centrality measures that characterize specific patches. We show that both predator and prey species benefit from living in globally well-connected patches (i.e. with high closeness centrality).

However, the maximum number of prey species is reached, on average, at lower closeness centrality levels than for predator species. Hence, prey species benefit from constraints imposed on species movement in fragmented landscapes since they can reproduce with a lesser risk of predation, and their need for using anti-predatory strategies decreases.

2011-11-25 | Sturle Hauge Simonsen
Tell a friend (opens in new window)
Subscribe to our newsletter
FOLLOW US ON:
RSS news feed
Join us on Facebook
Follow us on Twitter
See our YouTube channel
Download centre seminars on iTunes
Stockholm Resilience Centre
Stockholm University, Kräftriket 2B | Phone: +46 8 674 70 70 | E-mail: info@stockholmresilience.su.se