10.5061/DRYAD.3J8RR
Souchay, Guillaume
Swiss Ornithological Institute
van Wijk, Rien E.
Swiss Ornithological Institute
Schaub, Michael
Swiss Ornithological Institute
University of Bern
Bauer, Silke
Swiss Ornithological Institute
Data from: Identifying drivers of breeding success in a long-distance
migrant using structural equation modelling
Dryad
dataset
2017
Upupa epops
carry-over effect
migration schedule
structural-equation model
2017-06-28T19:56:26Z
2017-06-28T19:56:26Z
en
https://doi.org/10.1111/oik.04247
2115 bytes
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CC0 1.0 Universal (CC0 1.0) Public Domain Dedication
In migrant animals, conditions encountered at various times and places
throughout their annual cycle may affect breeding success. Yet, most
studies so far have only investigated the effect of specific parts of the
annual cycle, despite the importance to understand how different stages
can interact and how these stages compare to intrinsic quality to properly
modulate breeding success. Using a structural equation modelling approach,
we investigated drivers of breeding success (migration cycle, individual
quality, breeding conditions) in hoopoes (Upupa epops), a long-distant
migrant. Our causal framework explained 75% of the variation in breeding
success. The effect of the migration schedule was negligible, whereas the
previous breeding attempt strongly influenced current breeding success. We
suggest that the interplay of individual quality and environmental
conditions during both previous and current breeding season may be more
important drivers of breeding success than migration schedules, even in a
long-distance migrant. We conclude that structural equation modeling is a
promising tool to investigate causal relationships. Applied to hoopoes, we
demonstrated that current breeding success is strongly linked to previous
breeding success. Complementary analysis integrating weather and climate
conditions during migration and the breeding season may provide a deeper
and wider overview of the annual cycle of hoopoes and additional insights
into the existence of carry-over effects in breeding success.
Souchay-et-al_oik.04247_rawdataraw field data of breeding success and
migration schedule of surveyed European hoopoes with geolocator. See
article and Appendix 2 for a complete description of the data
fileSouchay-et-al_ESM3_data.csv
Palearctic-Africa