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All Journal TREUBIA BERITA BIOLOGI JURNAL BIOLOGI INDONESIA ZOO INDONESIA
Tri Haryoko, Tri
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Education Other

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Journal : TREUBIA

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Notes on ecology of wild goffin’s cockatoo in the late dry season with emphasis on feeding ecology Mioduszewska, Berenika Monika; O’Hara, Mark Christopher; Haryoko, Tri; Auersperg, Alice Marie Isabel; Huber, Ludwig; Prawiradilaga, Dewi Malia
TREUBIA Vol 45 (2018): Vol. 45, December 2018
Publisher : Research Center for Biology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/treubia.v45i0.3706

Abstract

Experimental work on captive Goffin’s cockatoos (Cacatua goffiniana) has highlighted the remarkable cognitive abilities of this species. However, little is known about its behavior in the natural habitat on the Tanimbar Archipelago in Indonesia. In order to fully understand the evolutionary roots leading to cognitively advanced skills, such as multi-step problem solving or flexible tool use and manufacture, it is crucial to study the ecological challenges faced by the respective species in the wild. The three-month expedition presented here aimed at gaining first insights into the cockatoos’ feeding ecology and breeding behavior. We could confirm previous predictions that Goffin’s cockatoos are opportunistic foragers and consume a variety of resources (seeds, fruit, inflorescence, roots). Their breeding season may be estimated to start between June and early July and they face potential predation from ground and aerial predators. Additionally, the observational data provide indications that Goffin’s cockatoos are extractive foragers, which together with relying on multiple food sources might be considered a prerequisite of tool use.
Ornithological observations from Maratua and Bawean Islands, Indonesia Burner, Ryan C.; Shakya, Subir B.; Haryoko, Tri; Irham, Mohammad; Prawiradilaga, Dewi M.; Sheldon, Frederick H
TREUBIA Vol 45 (2018): Vol. 45, December 2018
Publisher : Research Center for Biology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/treubia.v45i0.3445

Abstract

Indonesia’s many islands, large and small, make it an important center of avian diversity and endemism. Current biogeographic understanding, however, is limited by the lack of modern genetic samples for comparative analyses from most of these islands, and conservation efforts are hampered by the paucity of recent information from small islands peripheral to major, more commonly visited  islands. In November and December 2016, we visited Maratua, an oceanic coral atoll 50 km east of Borneo, and Bawean, a volcanic island on the Sunda continental shelf 150 km north of Java, to survey birds and collect specimens for morphological and genetic analysis. We detected many of the birds on Maratua’s historical lists and added several new resident and migratory species. Notably, we did not detect the Maratua White-rumped Shama (Copsychus malabaricus barbouri). On Bawean, we found the forests to be nearly silent and detected remarkably few resident land-bird species overall. The           severe population reduction of C. m. barbouri on Maratua and the drastic reduction of forest birds on Bawean probably result from overexploitation by the cage-bird trade in the first case and a combination of the cage-bird trade and pellet-gun hunting in the second.
RANGE EXTENSIONS OF DIABOLICAL NIGHTJAR Eurostopodus diabolicus AND INDONESIAN SERIN Chrysocorythus estherae ON SULAWESI OF THE WALLACEA REGION Irham, Mohammad; Sin, Yong Chee Keita; Xi, Sng Chen; Yohanna, Yohanna; Haryoko, Tri; Prawiradilaga, Dewi Malia; Bowie, Rauri C.K.; Rheindt, Frank E.
TREUBIA Vol 51, No 2 (2024)
Publisher : National Research and Innovation Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/treubia.v51i2.4846

Abstract

Sulawesi is an important endemicity hotspot in Southeast Asia, with over 100 endemic species distributed on the island. Despite a long history of avian research on Sulawesi that has played a significant role in the development of evolutionary theory, many ornithological aspects remain unknown. The last few decades have seen novel discoveries, for example, in the form of new species range extensions and species discoveries in the face of ongoing habitat loss and conversion. We here report on a range extension and notes of morphological descriptions of the endemic Diabolical Nightjar and Indonesian Serin in Southeast Sulawesi, adding to our knowledge of the distribution of Sulawesi’s avifauna, especially in the southeastern part in which visits from ornithologists are less frequent. A review of recent museum collections adds another new locality for Diabolical Nightjar in South Sulawesi. Future taxonomic studies are needed to elucidate the status of both species, especially in the Indonesian Serin, as the subtle differences in the coloration of the forehead, rump, and upper tail covert may indicate more than one taxon exists in Sulawesi. In addition, we provide an annotated checklist of birds observed during the fieldwork encompassing areas around Kolaka and Makassar.
Co-Authors Auersperg, Alice Marie Isabel Bowie, Rauri C.K. Burner, Ryan C. Dewi M. Prawiradilaga, Dewi M. Dewi Malia Prawiradilaga, Dewi Malia Frederick H Sheldon Huber, Ludwig Mioduszewska, Berenika Monika MOCH SYAMSUL ARIFIN ZEIN Mohammad Irham O’Hara, Mark Christopher Rheindt, Frank E. Roslinawati, Evelin Shakya, Subir B. Sin, Yong Chee Keita Sulistyadi, Eko Sulistyadi, Eko TARUNI SRI PRAWAST MIEN KAOMINI ANY ARYANI DEDY DURYADI SOLIHIN Wahyu Prihatini Xi, Sng Chen Yohanna, Yohanna Yuli Sulistya Fitriana, Yuli Sulistya