Data from: How do resource distribution and taxonomy affect the use of dual foraging in seabirds?: A review

In many seabird species, parents feeding young switch between short and
long foraging excursions in a strategy known as “dual foraging”. To
investigate whether habitat quality near breeding colonies drives the use
of dual foraging, we conducted a systematic review of the seabird
literature, compiling the results of 103 studies which identified
dual-foraging in 50 species across nine families from all six seabird
orders. We estimated the mean distance from the colony of each
species' short and long foraging trips and obtained remote-sensed
data on chlorophyll concentrations within the radius of both short and
long trips around each colony. We then assessed, for each seabird family,
the relationship between the use of dual foraging strategies and the
difference in the quality of foraging locations between short- and
long-distance foraging trips. We found that the probability of dual
foraging grew with increasing difference in the quality of foraging
locations available during short- and long-distance trips. We also found
that when controlling for differences in habitat quality, albatrosses and
penguins were less likely to use dual foraging than Procellariidae, which
in turn were less likely to use dual foraging than Sulids. This study
helps clarify how environmental conditions and taxon-specific
characteristics influence seabird foraging behaviour. Keywords: seabirds,
dual foraging, habitat quality, central-place foraging, interspecific
differences.