Gastric Function in a Captive American Bittern

Duke, Gary E.

doi:10.2307/4084789

Cited by 8 publications

(2 citation statements)

References 9 publications

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“…Experiments in which the kind and quantity of ingested food is controlled can reveal this error. Hitherto such an experiment has been conducted only in one species of the Ciconiiformes, namely the American Bittern Botaurus lentiginosus (Rhoades & Duke 1975), and for a few species of owls (Strigiformes) and birds of prey (Falconiformes) (Raczyñski & Ruprecht 1974, Dodson & Wexlar 1979, Barton & Houston 1993.…”

Section: Introductionmentioning

confidence: 99%

Digestibility of prey by the White Stork (Ciconia ciconia) under experimental conditions

Rosin,

Kwiecinski

2011

Ornis Fenn

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Food composition of the White Stork Ciconia ciconia has been widely studied by pellet analysis throughout Europe, but the effect of digestibility on pellet contents has remained unclear. We studied the effect of digestion on the composition of pellets (N = 480) under experimental conditions in Poznañ Zoological Garden in 20042005. Twenty-four captive wild-born White Storks were fed mammals, birds, amphibians, fish, insects and earthworms. Only the remains of mammals, birds and insects were found in the regurgi-tated pellets. Bones were present in 13.1% of pellets. Three chosen osteological pellet components (skulls, mandibles and innominate bones) were analyzed to determine the amount of bone loss by digestion. The digestive efficiency was greater than 95%. Based on a literature review, we compared results of pellet analyses with methods not affected by digestion (direct observations and prey remains). The invertebrate : vertebrate ratio in the White Stork diet differed significantly between methods. Prey biomass rather than the number of prey items should be considered a better reflection of the diet.

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Section: Introductionmentioning

confidence: 99%

Digestibility of prey by the White Stork (Ciconia ciconia) under experimental conditions

Rosin,

Kwiecinski

2011

Ornis Fenn

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“…In general, regurgitated pellets were found on the ground below the roosts of adult birds, below nests if the young produced them, and from cage bottoms with captive birds (Townsend 1918;Lamore 1958;Rhoades & Duke 1975;Duke 1977;Stiehl & Trautwein 1991;Wang et al 2009, etc).…”

Section: Introductionmentioning

confidence: 99%

Pellets recovered from stick nests and new diet items of Furnariidae (Aves: Passeriformes)

Turienzo

Iorio

2014

Biologia

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This is the first record showing eleven species in seven genera of Furnariidae (Aves: Passeriformes) from Argentina that regurgitate pellets. A total of 627 nests of Furnariidae was examined, and from 84 nests (13.3%), 1,329 pellets were recovered. These pellets were found in the closed, domed nests of many Furnariidae, because in comparison to other passerine birds, their nests were used for roosting, especially in the subfamily Synallaxinae. Anumbius annumbi had the highest percentage of nests containing pellets. Food items identified from the pellets provided important new data on the diets of several species of Furnariidae.

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Relationship of cecal and colonic motility to diet, habitat, and cecal anatomy in several avian species

Duke

1989

J. Exp. Zool.

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Previous studies have described several types of contactile activity in the ceca and colon of turkeys. Cecal contractions were termed major and minor; major were propulsive, and minor were presumed to be mixing contractions. Both types propagated either orad or aborad.Colonic contractions were termed long-duration and short-duration, with both types being propulsive. Long-duration contractions were directed aborad; short-duration were directed orad, i.e., antiperistaltic. The latter are believed to be responsible for filling of the ceca from colonic contents and €or urinary reflux through the colon. Of eight wild species examined radiographically, there appeared to be little relationship between the cecal size, the nature of colonic antiperistalsis, the type of diet, or the availability of water in the habitat for each species.Although considerable attention has been directed toward a better understanding of cecal function in birds (reviews in McNab, '73; Duke, '86a), relatively less is known about cecal and colonic motility than about other aspects of lower bowel function. Also, less is known about cecal and colonic motility than is known about motility of the stomach and small intestines (Duke, '86b).

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Gastric Function in a Captive American Bittern

Cited by 8 publications

References 9 publications

Digestibility of prey by the White Stork (Ciconia ciconia) under experimental conditions

Digestibility of prey by the White Stork (Ciconia ciconia) under experimental conditions

Pellets recovered from stick nests and new diet items of Furnariidae (Aves: Passeriformes)

Relationship of cecal and colonic motility to diet, habitat, and cecal anatomy in several avian species

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