Reexamining cooperative hunting in Harris’s Hawk (<i>Parabuteo unicinctus</i>)

Coulson, Jennifer O.; Coulson, Thomas D.

doi:10.1525/auk.2013.12063

Cited by 14 publications

(15 citation statements)

References 18 publications

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“…Cooperative behaviours are widespread in social animals, for example cooperative hunting (e.g. in mammalian and avian carnivores; Bednarz, ; Coulson & Coulson, ; Smith, Swanson, Reed, & Holekamp, ), cooperative predator defence (e.g. mobbing in birds; Wheatcroft & Price, ) or cooperative breeding (e.g.…”

Section: Introductionmentioning

confidence: 99%

Paying attention pays off: Kea improve in loose‐string cooperation by attending to partner

et al. 2019

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Previous studies showed that kea are able to cooperate in experiments based on the loose‐string paradigm, but success rates were low, except when tested in stable dyads. We trained kea with low success rates to attend to the handling of the string by a human partner. This vastly improved subsequent coordination during cooperation with kea partners. Furthermore, we tested the kea dyads with a delayed entry set‐up (delays of 2, 4 or 6 s) and with two different lengths of string. Increasing length of delay and reducing string length had negative effects on the success rate. This suggests that a complete understanding of the actions was not present as the kea were not able to fully overcome factors that inhibit coordination. Lastly, we tested the three subjects showing the greatest ability to wait for the partner in a partner‐choice paradigm: one subject in the central position could pull a loose string with one partner after another in the order it preferred. As a result, the second subjects had much longer waiting times than previously experienced. We could show that the central kea learned to visit both set‐ups and that the second partner was able to wait for the partner to arrive before attempting to pull on the string, averaging twice as long as in the standard delay. Taken together, the results from this study highlight that cooperation in the loose‐string paradigm is largely dependent on coordination of the subjects. While attention to the partner's actions greatly improved performance, the greater waiting times achieved in the final set‐up also suggest that utilizing more ecologically relevant (subject is busy VS subject is held back) delays could further improve the performance of non‐human subjects in the delayed loose‐string paradigm.

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Section: Introductionmentioning

confidence: 99%

Paying attention pays off: Kea improve in loose‐string cooperation by attending to partner

et al. 2019

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“…A photograph showing a Harris's Hawk in second pre-basic moult with new dark remiges and rectrices can be seen at https://macaulaylibrary.org/asset/475156091. The only references to mention Basic II and Basic III unicinctus plumages we found were Coulson & Coulson (2012), which has a brief description, and the recently published Pallinger & Menq (2022), which described only Basic II plumage.…”

Section: Resultsmentioning

confidence: 97%

“…Behavioural ecology .—Harris's Hawk is a cooperative breeder, with nest helpers and polygamy, as well as cooperative hunting, reported regularly (Bednarz 1987, Bednarz & Ligon 1988, Coulson & Coulson 2013, Clark 2017, Dwyer & Bednarz 2020). We found only one record of a helper at a Bay-winged Hawk nest.…”

Section: Resultsmentioning

confidence: 99%

“…Basic II and Basic III plumages of Bay-winged Hawk are similar to that of juvenile Harris's Hawk, but are easily distinguished by the presence of flight feather moult, or wave moult fronts. Harris's Hawk regularly hunts and breeds cooperatively (Bednarz 1987, Bednarz & Ligon 1988, Bednarz 1995, Coulson & Coulson 2013, Dwyer & Bednarz 2020), whereas these behaviours have not been reported in Bay-winged Hawk (e.g., Jiménez & Jaksić 1993), although Coulson & Coulson (2012) presented anecdotal accounts to suggest that they may occasionally hunt communally. No published reports of cooperative breeding or hunting in Bay-winged Hawk were found (e.g., Jiménez & Jaksić 1993).…”

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confidence: 99%

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Taxonomic status of Bay-winged Hawk Parabuteo (unicinctus) unicinctus and Harris's Hawk P. (u.) harrisi, with documentation of delayed plumage maturation in Bay-winged Hawk

Clark

Seipke

2023

Bulletin of the British Ornithologists’ Club

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“…Indeed, division of labor has been documented in multicellular groups (Michod 2007) and numerous animal societies, for example, shrimp (Duffy 1996), birds (Bednarz 1988;Arnold et al 2005;Coulson and Coulson 2013), and dolphins (Gazda et al 2005). In each of these cases, there are individuals within the group that carry out a specific subset of behaviors different from others in the group, rather than all individuals carrying out all behaviors at the same frequency.…”

Section: Introductionmentioning

confidence: 99%

Task switching is associated with temporal delays inTemnothorax rugatulusants

Leighton

Charbonneau

Dornhaus

2016

BEHECO

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The major evolutionary transitions often result in reorganization of biological systems, and a component of such reorganization is that individuals within the system specialize on performing certain tasks, resulting in a division of labor. Although the traditional benefit of division of labor is thought to be a gain in work efficiency, one alternative benefit of specialization is avoiding temporal delays associated with switching tasks. While models have demonstrated that costs of task switching can drive the evolution of division of labor, little empirical support exists for this hypothesis. We tested whether there were task-switching costs in Temnothorax rugatulus. We recorded the behavior of every individual in 44 colonies and used this dataset to identify each instance where an individual performed a task, spent time in the interval (i.e., inactive, wandering inside, and self-grooming), and then performed a task again. We compared the interval time where an individual switched task type between that first and second bout of work to instances where an individual performed the same type of work in both bouts. In certain cases, we find that the interval time was significantly shorter if individuals repeated the same task. We find this time cost for switching to a new behavior in all active worker groups, that is, independently of worker specialization. These results suggest that task-switching costs may select for behavioral specialization.

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Reexamining cooperative hunting in Harris’s Hawk (Parabuteo unicinctus)

Cited by 14 publications

References 18 publications

Paying attention pays off: Kea improve in loose‐string cooperation by attending to partner

Paying attention pays off: Kea improve in loose‐string cooperation by attending to partner

Taxonomic status of Bay-winged Hawk Parabuteo (unicinctus) unicinctus and Harris's Hawk P. (u.) harrisi, with documentation of delayed plumage maturation in Bay-winged Hawk

Task switching is associated with temporal delays inTemnothorax rugatulusants

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