Diet of southern Buller's albatross (<i>Diomedea bulleri bulleri</i>) and the importance of fishery discards during chick rearing

James, G. D.; Stahl, Jean‐Claude

doi:10.1080/00288330.2000.9516946

Cited by 31 publications

(19 citation statements)

References 35 publications

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“…zooplanktivores that seemed to lack obvious top predators themselves (Mianzan et al 2001). However, various animals are known to eat salps, such as sea lions (Childerhouse et al 2001), albatrosses (James and Stahl 2000), turtles (Van Nierop and Den Hartog 1984;Hatase et al 2002;Eckert 2006;Dodge et al 2011), fish (Lyle and Smith 1997;Morato et al 2000;Mianzan et al 2001), and krill (Kawaguchi and Takahashi 1996).…”

Section: Discussionmentioning

confidence: 99%

It pays to have a big mouth: mushroom corals ingesting salps at northwest Borneo

Hoeksema

Waheed

2012

Mar Biodiv

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During daytime dives in July 2011 on the reefs of Kota Kinabalu (Sabah, Malaysia), large quantities of slowmoving salps (Tunicata: Thaliacea: Salpida) were observed. Some of these were seen to be caught and ingested by various mushroom corals (Fungiidae) and an anchor coral (Euphylliidae). The predators had complete salps (2-6 cm long) or partly digested salp remnants stuck inside their wide-open mouths. Salps that were observed landing on top of mushroom corals did not escape. They became captured by tentacles and were transported towards the opening coral mouths. To our knowledge, the present in situ observation is the first record of numerous salps being consumed by corals. All the observed predating coral species, either belonging to monostomatous or polystomatous species, possessed large mouths. The presence of multiple mouths enables mushroom corals to become larger than those with single mouths. Because a large polyp size facilitates the capture of food, it is advantageous for them to be polystomatous, especially when they possess a large mouth.

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Section: Discussionmentioning

confidence: 99%

It pays to have a big mouth: mushroom corals ingesting salps at northwest Borneo

Hoeksema

Waheed

2012

Mar Biodiv

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“…The period 1996-2004 was characterised by marked sea surface temperature anomalies in the New Zealand region associated with variations in the Southern Oscillation Index (SOI) (e.g., Uddstrom & Oien 1999). The SOI has been correlated with squid abundance in the New Zealand region (Waluda et al 2004) and squid are an important component of the diet of Buller's albatross (James & Stahl 2000). Therefore, we assume that variations in the SOI indicate variations in the availability of squid for Buller's albatross.…”

Section: Discussionmentioning

confidence: 99%

Variation in the size of Buller's albatross (Thalassarche bulleri) eggs

Sagar¹,

Unwin²,

Stahl³

et al. 2005

New Zealand Journal of Zoology

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The effect of minimum maternal experience, individual and year on egg size variation, breeding success and sex of the surviving chick were investigated in Buller's albatrosses (Thalassarche bulleri) breeding at the Snares Islands. Minimum maternal experience and individual effects were studied over the 9 years 1996-2004, while a second set of data allowed inter-annual variation in egg size to be investigated over 4 additional years (1961, 1969, 1970, and 1993). Egg length, breadth, volume and eccentricity did not vary between years, but all four variables varied significantly between individuals. The size of eggs laid by one individual varied less than the variation across the population as a whole. Egg volume increased with minimum maternal breeding experience, mainly because eggs became broader but not longer, up to the fourth breeding attempt. There was a weak positive relationship Z04044; Online publication date 4 August 2005 Received 22 December 2004 accepted 31 March 2005 between egg size and breeding success, but this correlation was confounded by maternal breeding experience. Breeding success decreased markedly among birds with >20 years breeding experience. There was no relationship between egg size and the sex of the resulting chick. The significant effects of minimum breeding experience and individual on egg size appear to be typical of seabirds. However, unlike other studies of egg size in albatrosses, we did not detect any between-year effects, perhaps because the experience of the breeding population changed little during the study period.

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“…Mollymawks are known to feed on jellyfish (Cnidaria), on comb jellies (Ctenophora), and particularly on tunicates such as salps (Tickell 1964, Cherel & Klages 1998, James & Stahl 2000. Such organisms often constitute a major component of the Southern Ocean macroplankton/ nekton community, and occur at the sea surface in very large numbers in the areas frequented by our instrumented birds (Pagès et al 1996).…”

Section: Water or Prey With Water-like Signatures?mentioning

confidence: 99%

Foraging strategies of grey-headed albatrosses Thalassarche chrysostoma: integration of movements, activity and feeding events

Catry¹,

Phillips²,

Phalan³

et al. 2004

Mar. Ecol. Prog. Ser.

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We identified a range of foraging strategies adopted by grey-headed albatrosses Thalassarche chrysostoma rearing chicks at Bird Island, South Georgia, by simultaneously using satellite telemetry, wet/dry activity recorders and stomach temperature loggers. The albatrosses foraged mostly over oceanic waters, probably associated with the Polar Front north of South Georgia, and also over shelf-slope waters around the Antarctic Peninsula. After leaving the colony, birds commuted to areas with predictable prey concentrations, where they remained for several days. During search periods, birds landed more often and had a higher intake rate, but spent the same proportion of time in flight as on commuting days. Although intake rates were particularly high in shelf-break waters around the Antarctic Peninsula (only one individual foraged in this area), prey were also consumed in reasonable quantities during commuting flights. While at sea, birds spent most (81%) of the day flying, and most (94%) of the night resting on the water. A considerable proportion (26% by mass) of prey was consumed during darkness. The majority of prey were detected and captured during search flights, but 35% were located while sitting on the sea surface. Many ingestion events (up to 27% of the overall food intake) showed temperature signatures characteristic of fluids, suggesting that albatrosses may feed on gelatinous and rapidly digested prey (e.g. salps and jellyfish) much more often than previously suspected. Diet samples delivered to the chicks comprised mostly squid (particularly Martialia hyadesi) and Antarctic krill Euphausia superba.

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Diet of southern Buller's albatross (Diomedea bulleri bulleri) and the importance of fishery discards during chick rearing

Cited by 31 publications

References 35 publications

It pays to have a big mouth: mushroom corals ingesting salps at northwest Borneo

It pays to have a big mouth: mushroom corals ingesting salps at northwest Borneo

Variation in the size of Buller's albatross (Thalassarche bulleri) eggs

Foraging strategies of grey-headed albatrosses Thalassarche chrysostoma: integration of movements, activity and feeding events

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