Summary
The Yellow-bellied Glider, Petaurus australis, was observed to feed sporadically but extensively on eucalypt sap. Gliders extracted sap by making incisions into the bark with their procumbent lower incisor teeth and licking the resulting exudate. Less than 1% of possible trees were incised for sap. Sap flow and sap-sugar concentration were estimated for eight sap-site trees and eight non sap-site trees at intervals during an 18 month period. Measurements of sap-sugar concentration differed substantially among trees but fluctuated between sample periods independent of glider use. Sap flow measurements, were always higher for those trees currently ‘in use’ by gliders, although the particular sap-site trees comprising this group varied between sample periods. The variation in sap flow occurred indenpendent of the incidence of rainfall or the type of microhabitat the tree occupied. Experimental incising of trees, designed to mimic the effects of feeding by gliders, failed to show any effect on sap flow. This suggests that the incidence of sap feeding is determined by a tree's pattern of sap flow and that there may be trees with unusual patterns of sap flow which gliders select as the most favourable trees to incise.
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References
Coimbra-Filho AF, Mittermeier RA (1976) Exudate-eating and tree-gouging in marmosets. Nature 262:630
Coimbra-Filho AF, Mittermeier RA (1977) Tree-gouging, exudateeating and the “Short-tusked” condition in Callithrix and Cebuella. In: Kleiman DG (ed), The Biology and Conservation of the Callitrichidae, Smithsonian Institution Press, Washington D.C. pp 105–15
Crafts AS (1961) Translocation in Plants. Holt, Reinhart and Winston, New York
Craig SA (1985) Social organization, reproduction and feeding behaviour of a population of Yellow-bellied Gliders, Petaurus australis (Marsupialia: Petauridae). Aust Wildl Res 12:1–18
Craig SA, Belcher CA (1980) A technique for live trapping the Yellow-bellied Glider, Petaurus australis, with notes on the biology of the species. Vic Nat 97:205–210
Fleay D (1947) Gliders of the Gum Trees. Bread and Cheese Club, Melbourne
Fonseca GAB, Lacher TE (1984) Exudate-feeding by Callithrix jacchus pencillata in semideciduous woodland (Cenrado) in Central Brazil. Primates 25:441–450
Goldingay RL (1986) Feeding behaviour of the Yellow-bellied Glider Petaurus australis (Marsupialia: Petauridae) at Bombala, New South Wales. Aust Mammal 9:17–25
Henry SR, Craig SA (1984) Diet, ranging behaviour and social organization of the Yellow-bellied Glider, (Petaurus australis) in Victoria. In: Smith AP, Hume ID (eds), Possums and Gliders, Australian Mammal Society, Sydney, pp 331–341
Kavanagh RP (1984) Seasonal changes in habitat use by Gliders and Possums in south-eastern New South Wales. In: Smith AP, Hume ID (eds), Possums and Gliders, Australian Mammal Society, Sydney, pp 527–543
Kavanagh RP (1987a) Forest phenology and its effect on foraging behaviour and selection of habitat by the Yellow-bellied Glider (Petaurus australis) Shaw. Aust Wildl Res (in press)
Kavanagh RP (1987b) Foraging behaviour of the Yellow-bellied Glider, Petaurus australis (Marsupialia: Petauridae), near Eden, New South Wales. Aust Mammal (in press)
Kilham L (1964) The relations of breeding yellow-bellied sapsuckers to wounded birches and other trees. Auk 81:520–527
Lacher TE, Fonseca GAB, Alves C, Magalhaes-Castro B (1981) Exudate-eating, scentmarking and territoriality in wild populations of marmosets. Anim Behav 29:306–307
Lacher TE, Fonseca GAB, Alves C, Magalhaes-Castro B (1984) Parasitism of trees by marmosets in a central Brazilian gallery forest. Biotropica 16:202–209
Maier W, Alonso C, Langguth A (1982) Field observations on Callithrix jacchus jacchus. L. Z Säugetierk 47:334–46
Marvin JW (1958) The physiology of maple sap flow. In: Thimann KV, Critchfield WB, Zimmerman MH (eds) The Physiology of Forest Trees, Ronald Press Company, New York, pp 95–124
Ramirez MF, Freese CH, Revilla J (1977) Feeding ecology of the pygmy marmoset, Cebuella pygmaea, in northeastern Peru. In: Kleiman DG (ed) The Biology and Conservation of the Callitrichidae, Smithsonian Institution Press, Washington D.C. pp 91–104
Russell R (1981) How Fluffy Gliders led me to the tree of life. Habitat 9:7–8
Russell R (1984) Social behaviour of the Yellow-bellied Glider, Petaurus australis, in north Queensland. In: Smith AP, Hume ID (eds) Prossums and Gliders, Australian Mammal Society, Sydney, pp 343–353
Smith AP (1982) Diet and feeding strategies of the marsupial Sugar Glider in temperate Australia. J Anim Ecol 51:149–166
Smith A, Russell R (1982) Diet of the Yellow-bellied Glider Petaurus australis (Marsupialia: Petauridae) in north Queensland. Aust Mammal 5:41–45
Stewart CM, Melvin JF, Ditchburne N, Than SM, Zerdorer E (1973) The effect of season of growth on the chemical composition of cambial saps of Eucalyptus regnans trees. Oecologia (Berlin) 12:349–372
Sutherland GD, Grass CL, Thompson PA, Lertzman KP (1982) Feeding territoriality in migrant rufous hummingbirds: defense of yellow-bellied sapsucker (Sphyrpicus varius) feeding sites. Can J Zool 60:2046–2050
Tate J (1973) Methods and annual sequence of foraging by the sapsucker. Auk 90:840–56
Wakefield NA (1970) Notes on the glider possum Petaurus australis. Vic Nat 87:221–236
Zar JH (1974) Biostatistical Analysis. Prentice-Hall, New Jersey
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Goldingay, R.L. Sap feeding by the marsupial Petaurus australis: an enigmatic behaviour?. Oecologia 73, 154–158 (1987). https://doi.org/10.1007/BF00376992
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DOI: https://doi.org/10.1007/BF00376992