Ruffed grouse nutrition and foraging in the southern Appalachians

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dc.contributor.authorHewitt, David Glennen
dc.contributor.committeechairKirkpatrick, Roy L.en
dc.contributor.committeememberBevan, David R.en
dc.contributor.committeememberFraser, James D.en
dc.contributor.committeememberStauffer, Dean F.en
dc.contributor.committeememberVaughan, Michael R.en
dc.contributor.committeememberWebb, Kenneth E. Jr.en
dc.contributor.departmentFisheries and Wildlife Sciencesen
dc.date.accessioned2014-03-14T21:14:52Zen
dc.date.adate2006-06-07en
dc.date.available2014-03-14T21:14:52Zen
dc.date.issued1994-08-15en
dc.date.rdate2006-06-07en
dc.date.sdate2006-06-07en
dc.description.abstractFeeding trials.showed that ruffed grouse (Bonasa umbellus) performed well on diets containing 20% Christmas hollyfem (Polystichum acrostichoides) or mountain laurel (Kalmia latifolia), but diets containing 40% of these forages resulted in lower protein and energy intake and the Christmas hollyfem diet caused a loss of body mass. Grouse were not able to maintain themselves solely on evergreen leaves. Glucuronide excretion was greatest for the 40% mountain laurel diet. Ornithine conjugate excretion was greatest for a diet with 40% deciduous leaves. Sulfate excretion did not vary among diets. Intake rate of leaves was an asymptotic function of bite size when the density of bites did not limit intake. Intake rate of leaves decreased at plants densities < 322 plants/m2. The maximum intake rate of leaves was 25% of the intake rate of aspen buds observed in wild grouse (Huempfuer and Tester 1988). Intake rate of raisins was an asymptotic function of bite size and was 20 times greater than the intake rate of leaves. Ruffed grouse in the Southeast must forage for> 100 min/day under ideal conditions to satisfy energy requirements.en
dc.description.degreePh. D.en
dc.format.extentxiii, 186 leavesen
dc.format.mediumBTDen
dc.format.mimetypeapplication/pdfen
dc.identifier.otheretd-06072006-124208en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-06072006-124208/en
dc.identifier.urihttp://hdl.handle.net/10919/38558en
dc.language.isoenen
dc.publisherVirginia Techen
dc.relation.haspartLD5655.V856_1994.H495.pdfen
dc.relation.isformatofOCLC# 31212946en
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subject.lccLD5655.V856 1994.H495en
dc.subject.lcshRuffed grouse -- Food -- Appalachian Region, Southernen
dc.titleRuffed grouse nutrition and foraging in the southern Appalachiansen
dc.typeDissertationen
dc.type.dcmitypeTexten
thesis.degree.disciplineFisheries and Wildlife Sciencesen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.leveldoctoralen
thesis.degree.namePh. D.en

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