Connectivity, dispersal behaviour and conservation under climate change: a response to Hodgson et al.
Article first published online: 22 DEC 2010
© 2010 The Authors. Journal of Applied Ecology © 2010 British Ecological Society
Journal of Applied Ecology
Volume 48, Issue 1, pages 143–147, February 2011
How to Cite
Doerr, V. A. J., Barrett, T. and Doerr, E. D. (2011), Connectivity, dispersal behaviour and conservation under climate change: a response to Hodgson et al. Journal of Applied Ecology, 48: 143–147. doi: 10.1111/j.1365-2664.2010.01899.x
- Issue published online: 7 JAN 2011
- Article first published online: 22 DEC 2010
- Received 16 June 2010; accepted 20 October 2010 Handling Editor: Morten Frederiksen
- behavioural ecology;
- connectivity conservation;
- population viability;
- range shift;
- stepping stone
1. Hodgson et al. [Journal of Applied Ecology46 (2009) 964] argue that connectivity is complex and uncertain, that it can be improved incidentally by increasing habitat extent, and that connectivity conservation is unlikely to be effective under climate change.
2. We believe that they have overlooked recent research on dispersal behaviour and structural connectivity, which has improved our understanding of functional connectivity and revealed that it will not necessarily increase with habitat extent.
3. New modelling techniques including least-cost path models incorporate this more detailed understanding of connectivity into conservation planning, facilitating the true aim of connectivity conservation – to ensure appropriate interactions between habitat extent, quality and connectivity.
4. Synthesis and applications. Advances in behavioural research and modelling techniques allow us to manage structural connectivity with as much certainty as we manage extent and quality of habitat. Successful landscape conservation to address both current threats and future climate change must manage these three elements in concert.