• Corpus ID: 5217379

Protein loss during long-distance migratory flight in passerine birds: adaptation and constraint.

  title={Protein loss during long-distance migratory flight in passerine birds: adaptation and constraint.},
  author={Regine Schwilch and Alessandra Grattarola and Fernando Spina and Lukas Jenni},
  journal={The Journal of experimental biology},
  volume={205 Pt 5},
During long-distance flights, birds catabolize not only fat but also protein. Because there is no storage form of protein, protein catabolism entails a structural or functional loss. In this study, we investigated which organs were most reduced in lean mass during different phases of fat store loss and whether protein loss can be regarded as adaptive or as a constraint. Body and organ composition were analysed both during the autumn migration over continental Europe (sample from Switzerland… 

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