Naslov
Breeding phenology and winter activity predict subsequent breeding success in a trans-global migratory seabird

Autori
Shoji, A. ; Aris-Brosou, S. ; Culina, A. ; Fayet, A. ; Kirk, H. ; Padget, O. ; Juarez-Martinez, I. ; Boyle, D. ; Nakata, T. ; Perrins, C. M. ; Guilford, T.

Izvornik
Biology letters (1744-9561) 11 (2015), 10; 20150671, 5

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
phenology ; migration ; machine learning ; adaptive boosting ; multi-event capture–mark–recapture mode

Sažetak
Inter-seasonal events are believed to connect and affect reproductive performance (RP) in animals. However, much remains unknown about such carry-over effects (COEs), in particular how behaviour patterns during highly mobile life-history stages, such as migration, affect RP. To address this question, we measured at-sea behaviour in a long-lived migratory seabird, the Manx shearwater (Puffinus puffinus) and obtained data for individual migration cycles over 5 years, by tracking with geolocator/immersion loggers, along with 6 years of RP data. We found that individual breeding and non-breeding phenology correlated with subsequent RP, with birds hyperactive during winter more likely to fail to reproduce. Furthermore, parental investment during one year influenced breeding success during the next, a COE reflecting the trade-off between current and future RP. Our results suggest that different life-history stages interact to influence RP in the next breeding season, so that behaviour patterns during winter may be important determinants of variation in subsequent fitness among individuals.

Izvorni jezik
Engleski

Znanstvena područja
Biologija, Interdisciplinarne prirodne znanosti

POVEZANOST RADA