Cury Philippe, Boyd I.L., Bonhommeau S., Anker-Nilssen T., Crawford R.J.M., Furness R.W., Mills J.A., Murphy E.J., Osterblom H., Paleczny M., Piatt J.F., Roux J.P., Shannon L., Sydeman W.J. (2011). Global seabird response to forage fish depletion-one-third for the birds. Science, 334 (6063), p. 1703-1706. ISSN 0036-8075.
Titre du document
Global seabird response to forage fish depletion-one-third for the birds
Année de publication
2011
Auteurs
Cury Philippe, Boyd I.L., Bonhommeau S., Anker-Nilssen T., Crawford R.J.M., Furness R.W., Mills J.A., Murphy E.J., Osterblom H., Paleczny M., Piatt J.F., Roux J.P., Shannon L., Sydeman W.J.
Source
Science, 2011,
334 (6063), p. 1703-1706 ISSN 0036-8075
Determining the form of key predator-prey relationships is critical for understanding marine ecosystem dynamics. Using a comprehensive global database, we quantified the effect of fluctuations in food abundance on seabird breeding success. We identified a threshold in prey (fish and krill, termed "forage fish") abundance below which seabirds experience consistently reduced and more variable productivity. This response was common to all seven ecosystems and 14 bird species examined within the Atlantic, Pacific, and Southern Oceans. The threshold approximated one-third of the maximum prey biomass observed in long-term studies. This provides an indicator of the minimal forage fish biomass needed to sustain seabird productivity over the long term.
Plan de classement
Limnologie biologique / Océanographie biologique [034]
;
Ecologie, systèmes aquatiques [036]
Localisation
Fonds IRD [F B010054257]
Identifiant IRD
fdi:010054257
