Flightless rails endemic to islands have lower energy expenditures and clutch sizes than flighted rails on islands and continents.

@article{McNab2006FlightlessRE,
  title={Flightless rails endemic to islands have lower energy expenditures and clutch sizes than flighted rails on islands and continents.},
  author={Brian K McNab and Hugh I Ellis},
  journal={Comparative biochemistry and physiology. Part A, Molecular & integrative physiology},
  year={2006},
  volume={145 3},
  pages={295-311}
}
Data are presented on the standard energetics of six flighted and five flightless species of rails (Aves: Rallidae). The factors influencing these data and those from three additional species available from the literature, one of which was flightless, are examined. Basal rate of metabolism correlates with body mass, residency on islands or continents, volant condition, pectoral muscle mass, and food habits, but not with climate. The greatest capacity (96.2%) to account for the variation in… CONTINUE READING

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