@article {3818,
	title = {Feeding avoidance of balsam poplar by snowshoe hares is related to abundance of buds},
	journal = {Ecoscience},
	volume = {3},
	number = {2},
	year = {1996},
	note = {ISI Document Delivery No.: UP163Times Cited: 0Cited Reference Count: 12},
	pages = {223-225},
	type = {Article},
	abstract = {In boreal forests of North America balsam poplar (Populus balsamifera) stems contain several chemicals distasteful to snowshoe hares. Some chemicals occur in internodes, others in buds. We examined whether an antifeedant chemical in buds (2,4,6-trihydroxydihydrochalcone) also inhibited hares from feeding on internodes. This chemical was painted onto buds of palatable willow (Salix lucida) twigs which were presented to harts in cafeteria trials. Hares avoided twigs with painted buds and the degree of aversion was related to the abundance of painted buds. Although the number of buds per unit mass of balsam poplar stems declined from one to five years old, the remaining buds were sufficient to induce a feeding deterrence.},
	keywords = {ANTIFEEDANT, antifeedant chemicals, balsam poplar, CHEMICAL DEFENSE, GREEN ALDER, PINOSYLVIN METHYL-ETHER, snowshoe hare},
	isbn = {1195-6860},
	url = {<Go to ISI>://A1996UP16300013},
	author = {Sinclair, A. R. E. and Williams, D. E. and Andersen, R. J. and Pain, J.}
}
@article {7379,
	title = {TRITERPENE CONSTITUENTS OF THE DWARF BIRCH, BETULA-GLANDULOSA},
	journal = {Phytochemistry},
	volume = {31},
	number = {7},
	year = {1992},
	note = {ISI Document Delivery No.: JC920Times Cited: 11Cited Reference Count: 12},
	month = {Jul},
	pages = {2321-2324},
	type = {Article},
	abstract = {Juvenile stages of the dwarf birch, Betula glandulosa, from the Yukon, Canada, are rarely browsed by snowshoe hares (LePus americanus). Chemical investigation of extracts of B. glandulosa which strongly deter browsing by snowshoe hares has led to the isolation and structure determination of the new metabolite, deacetoxypapyriferic acid. Dammar-24-ene-12-beta-O-acetyl-20(S)-ol-3-one, a previously unknown natural product, was obtained from extracts which did not deter browsing. The known metabolite papyriferic acid was found to be a minor constituent of extracts of B. glandulosa.},
	keywords = {ANTIFEEDANT, BETULA-GLANDULOSA, DAMMAR-24-ENE-12-BETA-O-ACETYL-20(S)-OL-3-ONE, DEACETOXYPAPYRIFERIC ACID, DETER BROWSING, LEPUS-AMERICANUS, NMR, PAPER BIRCH, PAPYRIFERIC ACID, SNOWSHOE HARES},
	isbn = {0031-9422},
	url = {<Go to ISI>://A1992JC92000016},
	author = {Williams, D. E. and Sinclair, A. R. E. and Andersen, R. J.}
}
