Official websites use. Share sensitive information only on official, secure websites. Email: pauline. Reproductive parameters can be challenging to estimate as breeders and nonbreeders may vary in resighting probability and reproductive status may be difficult to assess.
We applied this model to data on adult female bottlenose dolphins observed over 13 years. The detection probability differed depending on breeding status. This possibly led to inaccurate reproductive status assignment of females. Adult female survival probability was high 0.
This reduced survival is probably related to weaning, a period during which young are exposed to more risks since they lose protection and feeding from the mother. The multievent CR framework we used is highly flexible and could be easily modified for other study questions or taxa marine or terrestrial aimed at modeling reproductive parameters. Keywords: bottlenose dolphin, English Channel, multievent captureβrecapture models, reproduction, survival, Tursiops truncatus. Another is that several traits are involved in reproduction, such as the proportion of breeding females or the reproductive success, and some of these are more difficult to estimate than others.
Furthermore, the detection probability of breeders and nonbreeders could be different. In this study, we were particularly interested in estimating the reproductive parameters of a population of bottlenose dolphins Tursiops truncatus with a new approach which could be used for other cetacean species.
In wild cetacean populations, methods aiming at providing estimates of the reproductive rate, reproductive success, calf survival, and proportion of breeding female usually relied on raw count of breeding and nonbreeding adults, newborns, and juveniles, for purely descriptive statistics see, for instance, Herzing, ; Rossi et al.
