Notes on ecology of wild goffin’s cockatoo in the late dry season with emphasis on feeding ecology

Mioduszewska, Berenika; O’Hara, Mark; Haryoko, Tri; Huber, Ludwig; Prawiradilaga, Dewi M.

doi:10.14203/treubia.v45i0.3706

Cited by 17 publications

(32 citation statements)

References 41 publications

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“…In their natural habitat, the small Tanimbar archipelago in the Moluccan region of Indonesia, the Goffin’s cockatoos feed on wild maracuja ( Passiflora foetida ; Mioduszewska et al, 2019 ; O’Hara et al, 2019 ). These flowering plants produce small individual fruit pods growing on long vines and represent a highly valuable foraging source to the wild cockatoos.…”

Section: Discussionmentioning

confidence: 99%

String-pulling in the Goffin’s cockatoo (Cacatua goffiniana)

Wakonig

O’Hara

2021

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Goffin’s cockatoos, a parrot species endemic to the Tanimbar Islands in Indonesia, demonstrate remarkable cognitive skills across various technical tasks. These neophilic extractive foragers explore objects with their beak and feet, and are skilled in several modes of tool use. In this study, we confronted the animals for the first time with a vertical string-pulling setup, including a set of classic and novel controls. Nine of the 12 subjects, two of which were subadults, immediately interacted with the single-string task, with seven individuals successfully obtaining the reward on their very first attempt. Four different double string discrimination tests with varying spatial relations were used to assess the Goffin’s cockatoos’ apprehension of basic physical task properties. We found significant differences in performance between the respective experimental conditions, as well as the development of side biases. The results suggest that while the birds seem to consider simple cause–effect relationships, there is no evidence for a mental representation of the causal mechanisms underlying the string-pulling tasks, as subjects failed the crossed strings condition out of immediate sight. Finally, we provide suggestions on improving the methodology, and discuss our findings in regard to the Goffin’s cockatoo’s ecology.

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Section: Discussionmentioning

confidence: 99%

String-pulling in the Goffin’s cockatoo (Cacatua goffiniana)

Wakonig

O’Hara

2021

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“…Like in the crows, the products made by the birds in the Size test should be regarded as assimilations based on the memorized models and not as absolute matches of the latter (with exceptions; see above). Finding the ability to physically produce object features of a template in a parrot that has the capacity for tool innovation (Auersperg et al 2012 ; Osuna-Mascaró and Auersperg 2018 , Laumer et al 2017 ) but, so far, seems to lack a dependency on tool use and does not have cumulative tool cultures (O’Hara et al 2018 ; Mioduszewska et al 2019 ) suggests that the latter is not a necessary condition in order for this ability to evolve. We suggest it is likely that crows and parrots may share other inherent properties that facilitate such skills.…”

Section: Discussionmentioning

confidence: 99%

Object manufacture based on a memorized template: Goffin’s cockatoos attend to different model features

et al. 2020

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Although several nonhuman animals have the ability to recognize and match templates in computerized tasks, we know little about their ability to recall and then physically manufacture specific features of mental templates. Across three experiments, Goffin cockatoos (Cacatua goffiniana), a species that can use tools in captivity, were exposed to two pre-made template objects, varying in either colour, size (long or short) or shape (I or L-shaped), where only one template was rewarded. Birds were then given the opportunity to manufacture versions of these objects themselves. We found that all birds carved paper strips from the same colour material as the rewarded template, and half were also able to match the size of a template (long and short). This occurred despite the template being absent at test and birds being rewarded at random. However, we found no evidence that cockatoos could carve L-shaped pieces after learning that L-shaped templates were rewarded, though their manufactured strips were wider than in previous tests. Overall, our results show that Goffin cockatoos possess the ability to physically adjust at least the size dimension of manufactured objects relative to a mental template. This ability has previously only been shown in New Caledonian crows, where template matching was suggested as a potential mechanism allowing for the cumulative cultural transmission of tool designs. Our results show that within avian tool users, the ability to recreate a physical template from memory does not seem to be restricted to species that have cumulative tool cultures.

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“…Cacactua goffiniana is the only cockatoo species endemic to Tanimbar Islands. This bird [17]. In this study, we often observed that while these bird species can establish a nest on the same tree, they might use different parts.…”

Section: Association Between C Goffiniana and Other Birds On Tanimbar Islandsmentioning

confidence: 95%

Bird Diversity on Tanimbar Islands with Special Reference to the Tanimbar Corella (Cacatua goffiniana)

Haryoko¹,

O’Hara²,

Mioduszewska³

et al. 2021

Proceedings of the International Seminar on Promoting Local Resources for Sustainable Agriculture and Development (ISPLRSAD 202

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The Tanimbar Islands located in the Wallacea region have particularly important ornithological values due to high level of endemism. Avian researchers have carried out expeditions to Tanimbar since long time ago starting with Forbes in 1882. An iconic bird of the Tanimbar Islands is the endemic Tanimbar corella (Cacatua goffiniana). This species is considered near threatened by the IUCN, listed in CITES Appendix I, and is protected under Indonesian law. The objectives of the study were to assess bird diversity, habitat use, and association between C. goffiniana and other bird species on the Tanimbar Islands. Data were collected between 2015 and 2019 on Yamdena, Larat, Selaru, and Vaimar Island of Kepulauan Tanimbar Regency, Maluku Province. Direct observation and mist-netting technique were conducted to assess the bird diversity. The habitat use was mapped using ArcGIS 10.5. Descriptive analysis was used to reveal associations between Tanimbar corella and other species. The diversity assessment recorded 142 species in which there were 13 new records for this location. The Tanimbar Islands offer several types of habitats, namely forests, open land, swamps, mangroves, and coastal areas. Associations between C. goffiniana and other birds were recorded with regards to competition and sharing of food resources and nesting sites. C. goffiniana competes with Eclectus roratus for nesting opportunities, and they have an overlapping diet. In addition, C. goffiniana often shares nesting sites with Eos reticulata or Aplonis crassa by using the same trees, and sometimes even the same hollows for nesting. During the observation in August-November 2015, several species were found entering breeding period, namely C. goffiniana, E. roratus, E. reticulata, A. crassa, Philemon mollucensis, Chalcophaps indica, Rhipidura rufifrons, and Lonchura quinticolor. Deforestation resulting in loss of nest and foraging trees pose the major threat to the wild bird population, especially C. goffiniana. By promoting C. goffiniana as an umbrella species we expect to conserve the biodiversity in the region.

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Notes on ecology of wild goffin’s cockatoo in the late dry season with emphasis on feeding ecology

Cited by 17 publications

References 41 publications

String-pulling in the Goffin’s cockatoo (Cacatua goffiniana)

String-pulling in the Goffin’s cockatoo (Cacatua goffiniana)

Object manufacture based on a memorized template: Goffin’s cockatoos attend to different model features

Bird Diversity on Tanimbar Islands with Special Reference to the Tanimbar Corella (Cacatua goffiniana)

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