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Article
E. S. Morton, Auteur ; B. J. M. Stutchbury, AuteurDemographic data are presented from an 8-yr study of a marked population of the Dusky Antbird (Cercomacra tyrannina), a sedentary neotropical passerine with year-long territories and pairbonds. Dusky Antbirds had an annual survival rate of 82%, [...]
Article
B. J. M. Stutchbury, Auteur ; E. S. Morton, Auteur ; W. H. Piper, AuteurExtra-pair matings are now recognized as a fundamental component of avian mating systems. However, in tropical regions where breeding is typically asynchronous socially monogamous species appear to have low sperm competition and few extrapair ma[...]
Article
J. V. Gorrell, Auteur ; G. Ritchison, Auteur ; E. S. Morton, AuteurLong-term pair bonds and defense of territories year-round are common among tropical passerines. The boundaries of these territories tend to be stable, perhaps reflecting the need to defend an area that, regardless of conditions, provides suffic[...]
