In behavioral ecology, hyperphagia is a short-term increase in food intake and metabolization in response to changing environmental conditions. It is most prominent in a number of migratory bird species. Hyperphagia occurs when fat deposits need to be built up over the course of a few days or weeks, for example in wintering birds that are preparing to start on their spring migration, or when feeding habitat conditions improve for only a short duration.[1][2] Mallards may engage in hyperphagia in response to winter floods that temporarily make available more wetlands for foraging, heavily increasing their daily food intake to make use of the additional food.[3][4]

References

  1. ↑ King, J. R.; Farner, D. S. (1965). "Studies of fat deposition in migratory birds". Annals of the New York Academy of Sciences. 131 (1): 422–440. Bibcode:1965NYASA.131..422K. doi:10.1111/j.1749-6632.1965.tb34808.x. PMID 5216979. S2CID 45371528.
  2. ↑ Guillemette, M.; Richman, S. E.; Portugal, S. J.; Butler, P. J. (2012). "Behavioural compensation reduces energy expenditure during migration hyperphagia in a large bird". Functional Ecology. 26 (4): 876–883. doi:10.1111/j.1365-2435.2012.01993.x.
  3. ↑ Loesch, C. R.; Kaminski, R. M. (1989). "Winter body-weight patterns of female mallards fed agricultural seeds". Journal of Wildlife Management. 53 (4): 1081–1087. doi:10.2307/3809614. JSTOR 3809614.
  4. ↑ Heitmeyer, M. E. (2006). "The importance of winter floods to mallards in the Mississippi Alluvial Valley". The Journal of Wildlife Management. 70 (1): 101–110. doi:10.2193/0022-541X(2006)70[101:TIOWFT]2.0.CO;2. S2CID 55764159.


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