Continued population recovery by Australian fur seals

Kirkwood, Roger; Pemberton, David; Gales, Rosemary; Hoskins, Andrew J.; Mitchell, Tony; Shaughnessy, Peter D.; Arnould, John P. Y.

doi:10.1071/mf09213

Cited by 77 publications

(91 citation statements)

References 30 publications

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“…Additional samples were collected from a breeding colony at The Skerries (37°45' S, 149°31' E) in eastern Bass Strait, at the eastern extent of the species' breeding range (Kirkwood et al 2005), between April and October in 1999 and 2000. Together, these colonies account for 24% of the total species population (Kirkwood et al 2010). The samples were collected opportunistically during other concurrent studies (Arnould & Hindell 2001, Littnan 2003, Gibbens et al 2010.…”

Section: Methodsmentioning

confidence: 99%

“…The Australian fur seal Arctocephalus pusillus doriferus, the largest of the fur seal species, has a breeding distribution restricted to just 13 sites, all but one occurring within Bass Strait, in south-eastern Australia (Kirkwood et al 2010). With mean adult female and male body masses of 76 and 229 kg, respectively (Arnould & Warneke 2002), and a current estimated population size of ca.…”

Section: Abstract: Australian Fur Seal · Otariid · Stable Isotopes ·mentioning

confidence: 99%

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Stable isotopes reveal inter-annual and inter-individual variation in the diet of female Australian fur seals

Arnould¹,

Cherel²,

Gibbens³

et al. 2011

Mar. Ecol. Prog. Ser.

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Section: Methodsmentioning

confidence: 99%

Section: Abstract: Australian Fur Seal · Otariid · Stable Isotopes ·mentioning

confidence: 99%

Stable isotopes reveal inter-annual and inter-individual variation in the diet of female Australian fur seals

Arnould¹,

Cherel²,

Gibbens³

et al. 2011

Mar. Ecol. Prog. Ser.

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“…Annual rainfall in the years 2003,2005,2006 and 2007 was below average, and 2004 received slightly above average rainfall. Over 100 000 pairs of burrow-nesting seabirds are present on Kanowna Island from November to March each year, together with a breeding colony of 15 000 fur seals (Kirkwood et al 2010).…”

Section: Study Sitesmentioning

confidence: 99%

Inflated population density of island antechinus: a case of allochthonous marine inputs leading to increased food availability?

Sale

Arnould²

2012

Aust. J. Zool.

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Abstract. Resource availability and other processes that affect maintenance, growth and decline of animal populations are central to ecology and conservation. This study quantified features indicative of population fitness and the availability of food resources for island and mainland populations of an insectivorous marsupial, the swamp antechinus (Antechinus minimus). The aim of the study was to test the hypothesis that colonial seabirds increase productivity of island habitats, ultimately providing greater food resources. The study found that antechinus biomass density was 4-13 times greater on the island site compared with the mainland site and was associated with higher recapture rates, suggesting that more individuals were surviving on the island during spring and summer months. An index of antechinus food availability (abundance and biomass of invertebrates) was also higher on the island site. Island antechinus also accessed marine food subsidies, in the form of seabird carrion, during the energetically demanding post-weaning growth period in spring and summer. Furthermore, based on soil nutrient and stable isotope analyses, there was strong evidence of nutrient enrichment from marine sources in the island ecosystem, commonly linked to increased productivity. Therefore, greater antechinus biomass and abundance on offshore islands are likely to be, in part, due to greater survival caused by higher availability of food resources.

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“…Australian fur seals are found in coastal waters of eastern SA, VIC, TAS and southern NSW. Breeding colonies exist at islands of Bass Strait, between TAS and VIC [431][432][433].…”

Section: Arctocephalus Pusillus Doriferus-australian Fur Sealmentioning

confidence: 99%

Review of Underwater and In-Air Sounds Emitted by Australian and Antarctic Marine Mammals

et al. 2017

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The study of marine soundscapes is a growing field of research. Recording hardware is becoming more accessible; there are a number of off-the-shelf autonomous recorders that can be deployed for months at a time; software analysis tools exist as shareware; raw or preprocessed recordings are freely and publicly available. However, what is missing are catalogues of commonly recorded sounds. Sounds related to geophysical events (e.g. earthquakes) and weather (e.g. wind and precipitation), to human activities (e.g. ships) and to marine animals (e.g. crustaceans, fish and marine mammals) commonly occur. Marine mammals are distributed throughout Australia's oceans and significantly contribute to the underwater soundscape. However, due to a lack of concurrent visual and passive acoustic observations, it is often not known which species produces which sounds. To aid in the analysis of Australian and Antarctic marine soundscape recordings, a literature review of the sounds made by marine mammals was undertaken. Frequency, duration and source level measurements are summarised and tabulated. In addition to the literature review, new marine mammal data are presented and include recordings from Australia of Omura's whales (Balaenoptera omurai), dwarf sperm whales (Kogia sima), common dolphins (Delphinus delphis), short-finned pilot whales (Globicephala macrorhynchus), long-finned pilot whales (G. melas), Fraser's dolphins (Lagenodelphis hosei), false killer whales (Pseudorca crassidens), striped dolphins (Stenella coeruleoalba) and spinner dolphins (S. longirostris), as well as the whistles and burst-pulse sounds of Australian pygmy killer whales (Feresa attenuata). To date, this is the most comprehensive acoustic summary for marine mammal species in Australian waters.

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Continued population recovery by Australian fur seals

Cited by 77 publications

References 30 publications

Stable isotopes reveal inter-annual and inter-individual variation in the diet of female Australian fur seals

Stable isotopes reveal inter-annual and inter-individual variation in the diet of female Australian fur seals

Inflated population density of island antechinus: a case of allochthonous marine inputs leading to increased food availability?

Review of Underwater and In-Air Sounds Emitted by Australian and Antarctic Marine Mammals

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