Chemical components of hardwood barks stripped by the alien squirrel Callosciurus erythraeus in Japan
- 1 December 2005
- journal article
- Published by Taylor & Francis Ltd in Journal of Forest Research
- Vol. 10 (6), 429-433
- https://doi.org/10.1007/s10310-005-0162-y
Abstract
The Pallas squirrel (Callosciurus erythraeus; common name in Japan: Formosan squirrel) was introduced in the 1950s and has established populations throughout southeastern Kanagawa Prefecture, Japan. Some tree species in natural forests, parks, and gardens in residential areas have been intensively debarked by the squirrels, especially in winter and spring. The amounts of chemical components, such as polyphenols, resins, flavanols, and sugars, in the bark were compared among species and individual trees collected in the forest of Yokohama Nature Sanctuary. Interspecific differences in the extent of stripping were not related to the amounts of the four chemical components. For individual trees, the bark with feeding scars tended to contain more sugar than that without scars.Keywords
This publication has 14 references indexed in Scilit:
- Variation in birch bark secondary chemistry between and within clones: implications for herbivory by haresOikos, 2004
- Bark stripping preference of sika deer, Cervus nippon, in terms of bark chemical contentsForest Ecology and Management, 2003
- Effects of Water Availability and Habitat Quality on Bark-Stripping Behavior in Barbary MacaquesConservation Biology, 2001
- Condensed tannins and sugars in the diet of chimpanzees ( Pan troglodytes schweinfurthii ) in the Budongo Forest, UgandaOecologia, 1998
- Selective Herbivory by Abert's Squirrel Mediated by Chemical Variability in Ponderosa PineEcology, 1992
- A Review of Damage by Mammals in North Temperate Forests: 1. DeerForestry: An International Journal of Forest Research, 1992
- Maple Sugaring by Red SquirrelsJournal of Mammalogy, 1992
- Food selection by western gorillas (G.g. gorilla) in relation to food chemistryOecologia, 1985
- The causes of damage by Red and Grey squirrelsMammal Review, 1983
- Food selection by the South Indian leaf-monkey, Presbytis johnii, in relation to leaf chemistryOecologia, 1980