Estimating age-dependent survival from age-aggregated ringing data-extending the use of historical records.

ABSTRACT: Bird ring-recovery data have been widely used to estimate demographic parameters such as survival probabilities since the mid-20th century. However, while the total number of birds ringed each year is usually known, historical information on age at ringing is often not available. A standard ring-recovery model, for which information on age at ringing is required, cannot be used when historical data are incomplete. We develop a new model to estimate age-dependent survival probabilities from such historical data when age at ringing is not recorded; we call this the historical data model. This new model provides an extension to the model of Robinson, 2010, Ibis, 152, 651-795 by estimating the proportion of the ringed birds marked as juveniles as an additional parameter. We conduct a simulatio

SUBMITTER: Jimenez-Munoz M 

PROVIDER: S-EPMC6362446 | biostudies-literature | 2019 Jan

REPOSITORIES: biostudies-literature