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Czasopismo
1998 | 43 | 4 |
Tytuł artykułu

Food-handling and feces reingestion in Ctenomys pearsoni [Rodentia, Ctenomyidae]

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EN
Abstrakty
EN
The food-handling and reingestive behaviour of feces by Ctenomys pearsoni Lessa and Langguth, 1983, was studied in the laboratory. All animals studied handle grasses with dexterity with one or both forepaws, and vigorously shaked it up and down before ingestion. Reingestion of feces occur frequently during resting periods and between feeding bouts. While performing both behaviours, C. pearsoni adopt a posture that not increase its height, what could be considered as and adaptation to the burrow space. Some convergences and divergences in the patterns of food-handling and reingestion of feces between Ctenomys and other subterranean rodents genera were remarked. We propose that the food-handling pattern is related to the cleaning of food; while the reingestion pattern might be related to water economy and to recover some particular nutrients.
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Wydawca
-
Czasopismo
Rocznik
Tom
43
Numer
4
Opis fizyczny
p.433-437
Twórcy
Bibliografia
  • Altuna C. A. 1983. Sobre la estructura de las construcciones de Ctenomys pearsoni Lessa & Langguth, 1983 (Rodentia, Octodontidae). Comunicaciones Jornadas Ciencias Naturales, Montevideo 3: 70-72.
  • Altuna C. A. 1991. Microclima de cuevas y comportamientos de homeostasis en una población del grupo Ctenomys pearsoni del Uruguay (Rodentia, Octodontidae). Boletin Sociedad Zoologica del Uruguay 6: 35-46.
  • Altuna C. A., Francescoli G. and Izquierdo G. 1991. Copulatory pattern of Ctenomys pearsoni (Rodentia: Octodontidae) from Balneario Solís, Uruguay. Mammalia 55: 316-318.
  • Bennett N. C. 1990. Behaviour and social organization in a colony of the Damaraland mole-rat Cryptomys damarensis. Journal of Zoology, London 220: 225-248.
  • Bozinovic F. 1995. Nutritional energetics and digestive responses of an herbivorous rodent (Octodon degus) to different levels of dietary fiber. Journal of Mammalogy 76: 627-637.
  • Bozinovic F. and Martinez del Rio C. 1996. Animals eat what they should not: why do they reject our foraging models? Revista Chilena de Historia Natural 69: 15-20.
  • Foley W. J. and Cork S. J. 1992. Use of fibrous diets by small herbivores: how far can the rules be bent? Trends in Ecology and Evolution 7: 159-162.
  • Kenagy G. J. and Hoyt D. F. 1980. Reingestion of feces in rodents and its daily rhythmicity. Oecologia (Berl.) 44: 403-409.
  • Lacey E. A., Alexander R. D., Braude, S. H., Sherman P. W. and Jarvis J. U. M. 1991. An ethogram for the nacked mole-rat: nonvocal behaviors. [In: The Biology of the nacked mole-rat. P. W. Sherman, J. U. M Jarvis and R. D. Alexander, eds], Princeton University Press, New Jersey: 209-242.
  • Nevo E. 1995. Mammalian evolution underground. The ecology-genetic-phenetic interfaces. Acta Theriologica, Suppl. 3: 9-31.
  • Reig O. A., Busch C., Orteils M. O. and Contreras J. R. 1990. An overview of evolution, systematics, population biology, cytogenetics, molecular biology and speciation in Ctenomys. [In: Evolution of Subterranean Mammals at the Organismal and Molecular Levels. E. Nevo and O. A. Reig, eds]. Alan R. Liss, Inc., New York: 71-96.
  • Tálice R. V., Momigliano-Tedeschi E., Laffitte de Mosera S. and Lagomarsino J. C. 1959. Investi­gaciones sobre Ctenomys torquatus, un roedor autóctono del Uruguay. Anales de la Facultad de Medicina, Montevideo 44: 452-462.
  • Ubilla M. and Altuna C. A. 1990. Analyse de la morphologie de la main chez des espces de Ctenomys de l'Uruguay (Rodentia, Octodontidae). Adaptations au fouissage et implications évolutives. Mammalia 34: 107-117.
  • Vaughan T. A. 1966. Food- handling and grooming behaviors in the plains pocket gopher. Journal of Mammology 47: 132-133.
  • Vaughan T. A. 1988. Mamíferos. Interamericana, México: 1-587.
Typ dokumentu
Bibliografia
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