Top Predators in Marine Ecosystems
Their Role in Monitoring and Management

An examination of how studying marine predators can identify changes in and help manage marine ecosystems.

I. L. Boyd (Edited by), S. Wanless (Edited by), C. J. Camphuysen (Author)

9780521612562, Cambridge University Press

Paperback, published 11 May 2006

392 pages, 85 b/w illus. 9 tables
22.9 x 15.3 x 1.9 cm, 0.632 kg

' … an interesting and important book … packed with scientific knowledge …' Fish and Fisheries

The sustainable exploitation of the marine environment depends upon our capacity to develop systems of management with predictable outcomes. Unfortunately, marine ecosystems are highly dynamic and this property could conflict with the objective of sustainable exploitation. This book investigates the theory that the population and behavioural dynamics of predators at the upper end of marine food chains can be used to assist with management. Since these species integrate the dynamics of marine ecosystems across a wide range of spatial and temporal scales, they offer new sources of information that can be formally used in setting management objectives. This book examines the current advances in the understanding of the ecology of marine predators and will investigate how information from these species could be used in management.

Preface
1. Introduction I. L. Boyd, S. Wanless and C. J. Campheysen
2. Effects of fisheries on ecosystems: just another top predator? Andrew W. Trites, Villy Christensen and Daniel Pauly
3. Physical forcing in the southwest Atlantic: ecosystem control P. N. Trathan, E. J. Murphy, J. Forcada, J. P. Croxall, K. Reid and S. E. Thorpe
4. The use of biologically meaningful oceanographic indices to separate the effects of climate and fisheries on seabird breeding success B. E. Scott, J. Sharples, S. Wanless, O. Ross, M. Frederiksen and F. Daunt
5. Linking predator foraging behaviour and diet with variability in continental shelf ecosystems: grey seals of eastern Canada W. D. Bowen, C. A. Beck, S. J. Iverson, D. Austin, and J. I. McMillan
6. Distribution and foraging interactions of seabirds and marine mammals in the North Sea: multi-species foraging assemblages and habitat-specific feeding strategies. C. J. Camphuysen, Beth Scott and Sarah Wanless
7. Spatial and temporal variation in the diets of polar bears across the Canadian Arctic: indicators of changes in prey populations and environment Sara J. Iverson, Ian Stirling, and Shelley L. C. Lang
8. Biophysical influences on seabird trophic assessments W. A. Montevecchi, S. Garthe and G. K. Davoren
9. Consequences of prey distribution for the foraging behaviour of top predators Iain J Staniland, Phil Trathan and Anthony R. Martin
10. Identifying drivers of change
did fisheries play a role in the spread of North Atlantic fulmars? Paul M. Thompson
11. Monitoring predator-prey interactions using multiple predator species: the South Georgia experience J. P. Croxall
12. Impacts of oceanography on the foraging dynamics of seabirds in the North Sea F. Daunt, S. Wanless, G. Peters, S. Benvenuti, J. Sharples, D. Grémillet and B. Scott
13. Foraging energetics of North Sea birds confronted with fluctuating prey availability M. R. Enstipp, F. Daunt, S. Wanless, E. M. Humphreys, K. C. Hamer, S. Benvenuti and D. Grémillet
14. How many fish should we leave in the sea for seabirds and marine mammals? Robert W. Furness
15. Does the prohibition of industrial fishing for sandeels have any impact on local gadoid populations? Simon P. R. Greenstreet
16. Use of gannets to monitor prey availability in the NE Atlantic Ocean: colony size, diet and foraging behaviour Keith C. Hamer, Sue Lewis, Sarah Wanless, Richard A. Phillips, Tom N. Sherratt, Elizabeth M. Humphreys, Janos Hennicke and Stefan Garthe
17. Population dynamics of Antarctic krill Euphausia superba at South Georgia - sampling with predators provides new insights K. Reid, E. J. Murphy, J. P. Croxall and P. N. Trathan
18. The functional response of generalist predators and its implications for the monitoring of marine ecosystems Christian Asseburg, John Harwood, Jason Matthiopoulos and Sophie Smout
19. The method of multiple hypotheses and the decline of Steller Sea Lions in western Alaska Nicholas Wolf, Jason Melbourne and Marc Mangel
20. Modelling the behaviour of individuals and groups of animals foraging in heterogeneous environments J. G. Ollason, J. M. Yearsley, K. Liu and N. Ren
21. The scenario Barents Sea study: a case of minimal realistic modelling to compare management strategies for marine ecosystems Tore Schweder
22. Setting management goals using information from predators Andrew J. Constable
23. Marine reserves and higher predators Sascha K. Hooker
24. Marine management: can objectives be set for marine top predators? Mark L. Tasker.

Subject Areas: Conservation of wildlife & habitats [RNKH], Marine biology [PSPM], Ecological science, the Biosphere [PSAF]