Further knowledge and urgent action required to save Orange-bellied Parrots from extinction

Dejan Stojanovic, Fernanda Alves, Henry Cook, Ross Crates, Robert Heinsohn, Andrew Peters, Laura Rayner, Shannon N. Troy, Matthew H. Webb

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

ABSTRACTOnly three wild-bred female Orange-bellied Parrots returned from migration in the 2016/17 breeding season, representing the lowest point of a long-term decline. In this context of imminent extinction risk we (i) update knowledge of population parameters, (ii) critically evaluate current recovery actions, and (iii) identify new management options. We present new data from the 2016/17 breeding season. Orange-bellied Parrots were only observed at the last known breeding site where fire suppression may havecaused shortage of natural food. Recently burned habitat elsewhere support abundant food, but no parrots. Fecundity of captive-bred individuals was significantly worse than wild-bred individuals (0.8 vs. 3 fledglings respectively), mostly due to infertility. Bacterial septicemia due to contaminated food caused mortalities of at least four nestlings. Fostering captive-bred nestlings to the wild showed some potential as a recovery tool, with 2 of 4 nests accepting a foster nestling, and one of these fledging successfully. Captive-bred birds had poorer feather condition than wild birds. Addressing food shortages and the addition of new managementactions to improve population recruitment are critical and urgent recovery priorities. We suggest recovery priorities for the species arising from our results, including emergency intervention to prevent imminent extinction.
Original languageEnglish
Pages (from-to)126-134
Number of pages9
JournalEmu
Volume118
Issue number1
Early online dateNov 2017
DOIs
Publication statusPublished - 02 Jan 2018

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extinction
nestling
breeds
food
breeding season
bird
infertility
extinction risk
fledging
breeding site
feather
fire suppression
food shortages
natural foods
parrots
septicemia
fecundity
food contamination
wild birds
nest

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Stojanovic, D., Alves, F., Cook, H., Crates, R., Heinsohn, R., Peters, A., ... Webb, M. H. (2018). Further knowledge and urgent action required to save Orange-bellied Parrots from extinction. Emu, 118(1), 126-134. https://doi.org/10.1080/01584197.2017.1394165
Stojanovic, Dejan ; Alves, Fernanda ; Cook, Henry ; Crates, Ross ; Heinsohn, Robert ; Peters, Andrew ; Rayner, Laura ; Troy, Shannon N. ; Webb, Matthew H. / Further knowledge and urgent action required to save Orange-bellied Parrots from extinction. In: Emu. 2018 ; Vol. 118, No. 1. pp. 126-134.
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Stojanovic, D, Alves, F, Cook, H, Crates, R, Heinsohn, R, Peters, A, Rayner, L, Troy, SN & Webb, MH 2018, 'Further knowledge and urgent action required to save Orange-bellied Parrots from extinction', Emu, vol. 118, no. 1, pp. 126-134. https://doi.org/10.1080/01584197.2017.1394165

Further knowledge and urgent action required to save Orange-bellied Parrots from extinction. / Stojanovic, Dejan; Alves, Fernanda; Cook, Henry; Crates, Ross; Heinsohn, Robert; Peters, Andrew; Rayner, Laura; Troy, Shannon N.; Webb, Matthew H.

In: Emu, Vol. 118, No. 1, 02.01.2018, p. 126-134.

Research output: Contribution to journalArticle

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AU - Stojanovic, Dejan

AU - Alves, Fernanda

AU - Cook, Henry

AU - Crates, Ross

AU - Heinsohn, Robert

AU - Peters, Andrew

AU - Rayner, Laura

AU - Troy, Shannon N.

AU - Webb, Matthew H.

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AB - ABSTRACTOnly three wild-bred female Orange-bellied Parrots returned from migration in the 2016/17 breeding season, representing the lowest point of a long-term decline. In this context of imminent extinction risk we (i) update knowledge of population parameters, (ii) critically evaluate current recovery actions, and (iii) identify new management options. We present new data from the 2016/17 breeding season. Orange-bellied Parrots were only observed at the last known breeding site where fire suppression may havecaused shortage of natural food. Recently burned habitat elsewhere support abundant food, but no parrots. Fecundity of captive-bred individuals was significantly worse than wild-bred individuals (0.8 vs. 3 fledglings respectively), mostly due to infertility. Bacterial septicemia due to contaminated food caused mortalities of at least four nestlings. Fostering captive-bred nestlings to the wild showed some potential as a recovery tool, with 2 of 4 nests accepting a foster nestling, and one of these fledging successfully. Captive-bred birds had poorer feather condition than wild birds. Addressing food shortages and the addition of new managementactions to improve population recruitment are critical and urgent recovery priorities. We suggest recovery priorities for the species arising from our results, including emergency intervention to prevent imminent extinction.

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