Gillies, Natasha 
ORCID: 0000-0002-9950-609X, Tyson, Chris, Wynn, Joe, Syposz, Martyna, Vansteenberghe, Cecile and Guilford, Tim
(2022)
Exploring the mechanisms of coordinated chick provisioning in the Manx shearwater <i>Puffinus puffinus</i>.
JOURNAL OF AVIAN BIOLOGY, 2022 (1).
Abstract
<jats:p>Many species that provide care for their offspring in tandem with a partner coordinate their activities to maximise the efficiency of their investment. However, it is not well known exactly how this coordination is achieved. Manx shearwaters <jats:italic>Puffinus puffinus</jats:italic> are Procellariiform seabirds that exhibit a dual foraging strategy during chick provisioning in which long foraging trips to maintain condition are alternated with short, frequent trips to feed the offspring. This strategy is employed in a coordinated manner between the parents, with one making short trips while the other takes a single long trip. Previous work revealed that a complementary switch in foraging trip type is initiated by the parents following a synchronous visit to the nest. We used a combination of observational data and experimental manipulation to examine the mechanisms that may underlie this behaviour. Specifically, we investigated the evidence that physical reunion is necessary to induce a switch in trip type, whether parents change their behaviour to maximise the probability of partner encounter, and whether indirect cues gained from the chick could inform a switch in behaviour. In our experimental approach, we manipulated the information adults had available to them by supplementarily feeding chicks to alter their begging behaviour. We found no support for the role of physical reunion or indirect cues in the coordination of care in this species. We discuss the possibility that the patterns of alternated provisioning observed during chick rearing in Manx shearwaters may emerge through entrainment during the well‐coordinated incubation period preceding chick provisioning.</jats:p>
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | behavioural ecology, breeding behaviour, coordinated provisioning, dual foraging, parental care, seabirds |
| Divisions: | Faculty of Science and Engineering > School of Environmental Sciences |
| Depositing User: | Symplectic Admin |
| Date Deposited: | 20 Dec 2021 16:42 |
| Last Modified: | 17 Oct 2023 20:22 |
| DOI: | 10.1111/jav.02881 |
| Open Access URL: | https://onlinelibrary.wiley.com/doi/10.1111/jav.02... |
| Related URLs: | |
| URI: | https://livrepository.liverpool.ac.uk/id/eprint/3145713 |
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