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Morus serrator

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Taxonomy [top]

Kingdom Phylum Class Order Family
ANIMALIA CHORDATA AVES SULIFORMES SULIDAE

Scientific Name: Morus serrator
Species Authority: (Gray, 1843)
Common Name(s):
English Australasian Gannet, Australian Gannet
French Fou austral
Synonym(s):
Sula serrator serrator Dowsett and Forbes-Watson (1993)

Assessment Information [top]

Red List Category & Criteria: Least Concern ver 3.1
Year Published: 2012
Date Assessed: 2012-05-01
Assessor(s): BirdLife International
Reviewer(s): Butchart, S. & Symes, A.
Facilitator/Compiler(s): Ekstrom, J., Butchart, S., Calvert, R.
Justification:
Although this species may have a small range, it is not believed to approach the thresholds for Vulnerable under the range size criterion (Extent of Occurrence <20,000 km2 combined with a declining or fluctuating range size, habitat extent/quality, or population size and a small number of locations or severe fragmentation). The population trend appears to be increasing, and hence the species does not approach the thresholds for Vulnerable under the population trend criterion (>30% decline over ten years or three generations). The population size is very large, and hence does not approach the thresholds for Vulnerable under the population size criterion (<10,000 mature individuals with a continuing decline estimated to be >10% in ten years or three generations, or with a specified population structure). For these reasons the species is evaluated as Least Concern.

Geographic Range [top]

Range Description: Breeding colonies are found off the coast of south-east Australia, Tasmania and New Zealand. One small colony is also found further north at Norfolk Island (to Australia). Winters in adjacent waters and up the east and west coasts of Australia as far north as the Tropic of Capricorn (del Hoyo et al. 1992).
Countries:
Native:
Australia; New Zealand
Vagrant:
Brazil; French Southern Territories; Namibia; South Africa
Present - origin uncertain:
Norfolk Island
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population Trend: Increasing

Habitat and Ecology [top]

Habitat and Ecology: The Australasian Gannet generally feeds over continental shelves or inshore waters, seldom far from land. Its diet is comprised mainly of pelagic fish, especially pilchard, anchovies and jack mackerel, but also squid and garfish. Prey is caught mainly by plunge-diving, but it is also seen regularly attending trawlers. Breeding is highly seasonal (Oct - May), nesting on the ground in small but dense colonies. Adults tend to stay within the vicinity of the colony after breeding with young birds dispersing (del Hoyo et al. 1992).
Systems: Terrestrial; Marine

Citation: BirdLife International 2012. Morus serrator. The IUCN Red List of Threatened Species. Version 2014.3. <www.iucnredlist.org>. Downloaded on 21 December 2014.
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