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Individual Studies

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6617 studies found

Environmental enrichment for zoo bears

Zoo Biology

Based on: Carlstead K., Seidensticker J. & Baldwin R. (1991)

Experimental evidence for food limitation of egg production in gulls

Ornis Scandinavica

Based on: Hiom L., Bolton M. & Monaghan P. (1991)

Artificial addition of snags and nest boxes to slash pine plantations

Journal of Field Ornithology

Based on: Caine L.A. & Marion W.R. (1991)

An observation of human-induced adoption in piping plovers

Journal of Field Ornithology

Based on: Midura A.M., Beyer S.M. & Kilpatrick H.J. (1991)

Nest-box selection by prothonotary warblers

Journal of Field Ornithology

Based on: Blem C.R. & Blem L.B. (1991)

Population dynamics of red-crowned cranes in Hokkaido since the 1950s

Proceedings of the 1987 International Crane Workshop International Crane Foundation,

Based on: Masatomi H. (1991)

Successful exchange of prairie-chicken eggs between nests in two remnant populations

Wilson Bulletin

Based on: Westemeier R.L., Simpson S.A. & Cooper D.A. (1991)

Relative effectiveness of repellents for reducing mule deer damage

The Journal of Wildlife Management

Based on: Andelt W.F., Burnham K.P. & Manning J.A. (1991)

Losses and reproduction of reintroduced golden lion tamarins Leontopithecus rosalia.


Based on: Beck B., Dietz J., Castro L., Carvelho C., Martins A. & Rettberg-Beck B. (1991)

Keeping and breeding the midwife toad (Alytes obstetricans) in captivity

British Herpetological Society Bulletin

Based on: Billings D. (1991)

Crop residue management and tillage methods for conserving soil and water in semi-arid regions

Soil and Tillage Research

Based on: Unger P.W., Stewart B.a., Parr J.F. & Singh R.P. (1991)

Moose-train collisions: the effects of vegetation removal with a cost–benefit analysis


Based on: Jaren V., Andersen R., Ulleberg M., Pedersen P.H. & Wiseth B. (1991)

Willow planting success as influenced by site factors and cattle grazing in northeastern California

Journal of Range Management

Based on: Conroy S.D. & Svejcar T.J. (1991)

Captive gibbons in Thailand and the option of reintroduction to the wild

Primate Conservation

Based on: Eudey A.A. (1991)

Conserving the Seychelles warbler Acrocephalus sechellensis by translocation: a transfer from Cousin Island to Aride Island

Bird Conservation International

Based on: Komdeur J., Bullock I.D. & Rands M.R.W. (1991)

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