Aging male loons make a terminal investment in territory defense

  title={Aging male loons make a terminal investment in territory defense},
  author={Walter Piper and Kristin M Brunk and Gabriella L. Jukkala and Eric A. Andrews and Seth R. Yund and Nelson G. Gould},
  journal={Behavioral Ecology and Sociobiology},
Animals that senesce experience a decline in residual reproductive value (RRV), such that old individuals can expect reduced breeding success compared to young ones. According to life history theory, animals with low RRV, which thus have less to lose, should shift resources away from self-maintenance and towards reproduction, an expectation called terminal investment. In a population of common loons whose survival and territorial behavior were measured throughout life, males 14 years and older… Expand

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