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Items where Author is "Orr, D.M."

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Number of items: 22.

Article

Orr, D.M. and Phelps, D. G. (2013) Impacts of level of utilisation by grazing on an Astrebla (Mitchell grass) grassland in north-western Queensland between 1984 and 2010. 1. Herbage mass and population dynamics of Astrebla spp. The Rangeland Journal, 35 (1). pp. 1-15.

Orr, D.M. and Phelps, D. G. (2013) Impacts of level of utilisation by grazing on an Astrebla (Mitchell grass) grassland in north-western Queensland between 1984 and 2010. 2. Plant species richness and abundance. The Rangeland Journal, 35 (1). pp. 17-28.

Orr, D.M. and O'Reagain, P. J. (2011) Managing for rainfall variability: impacts of grazing strategies on perennial grass dynamics in a dry tropical savanna. Rangeland Journal, 33 (2). p. 209. ISSN 1036-9872; 1834-7541

Hendricksen, R.E., Myles, D.J., Reid, D.J. and Orr, D.M. (2010) Impacts of grazing management options on pasture and animal productivity in a Heteropogon contortus (black speargrass) pasture in central Queensland. 3. Diet composition in autumn. Animal Production Science, 50 (4). pp. 276-283.

Burrows, W.H., Orr, D.M., Hendricksen, R.E., Rutherford, M.T., Myles, D.J., Back, P.V. and Gowen, R. (2010) Impacts of grazing management options on pasture and animal productivity in a Heteropogon contortus (black speargrass) pasture in central Queensland. 4. Animal production. Animal Production Science, 50 (4). pp. 284-292.

Orr, D.M., Yee, M.C., Rutherford, M.T. and Paton, C.J. (2010) Impacts of grazing management options on pasture and animal productivity in a Heteropogon contortus (black speargrass) pasture in central Queensland. 2. Population dynamics of Heteropogon contortus and Stylosanthes scabra cv. Seca. Crop & Pasture Science, 61 (3). pp. 255-267.

Orr, D.M. (2010) Managing the grass-legume balance in Stylosanthes scabra cv. Seca pastures in central Queensland. Tropical Grasslands, 44 . pp. 174-183.

Jones, P., Filet, P. and Orr, D.M. (2009) Demography of three perennial grasses in a central Queensland eucalypt woodland. Rangeland Journal, 31 (4). pp. 427-437.

Orr, D.M. (2008) Grazing management influences the dynamics of populations of Stylosanthes hippocampoides (Oxley fine stem stylo). Tropical Grasslands, 42 (4). pp. 193-201.

Orr, D.M., Yee, M.C. and Myles, D.J. (2006) Impact of short-term exclosure from grazing on pasture recovery from drought in six Queensland pasture communities. Tropical Grasslands, 40 (4). pp. 202-212. ISSN 0049-4763

Orr, D.M., Paton, C.J. and Playford, C. (2004) Dynamics of plant populations in Heteropogon contortus (black speargrass) pastures on a granite landscape in southern Queensland. 3. Dynamics of Aristida spp. populations. Tropical Grasslands, 38 . pp. 65-76.

Orr, D.M. (2004) Dynamics of plant populations in Heteropogon contortus (black speargrass) pastures on a granite landscape in southern Queensland. 4. The effects of burning on H.contortus and Aristida spp. populations. Tropical Grasslands, 38 . pp. 77-87.

Orr, D.M., Paton, C.J. and Reid, D.J. (2004) Dynamics of plant populations in Heteropogon contortus(black speargrass) pastures on a granite landscape in southern Queensland. 1. Dynamics of H. contortus populations. Tropical Grasslands, 38 . pp. 17-30.

Orr, D.M., Paton, C.J. and Playford, C. (2004) Dynamics of plant populations in Heteropogon contortus(black speargrass) pastures on a granite landscape in southern Queensland. 2. Seed production and soil seed banks of H. contortus. Tropical Grasslands, 38 . pp. 31-41.

Noble, A.D., Orr, D.M., Middleton, C.H. and Rogers, L.G. (2000) Legumes in native pasture - asset or liability? A case history with stylo. Tropical Grasslands-Forrajes Tropicales, 34 (3). pp. 199-206. ISSN 2346-3775

Jones, R.J., McIvor, J. G., Middleton, C.H., Burrows, W.H., Orr, D.M. and Coates, D.B. (1997) Stability and productivity of Stylosanthes pastures in Australia. I. Long-term botanical changes and their implications in grazed Stylosanthes pastures. Tropical Grasslands, 31 (5). pp. 482-493. ISSN 0049-4763

Orr, D.M., Paton, C.J. and Lisle, A.T. (1997) Using fire to manage species composition in Heteropogon contortus (black speargrass) pastures 1. Burning regimes. Australian Journal of Agricultural Research, 48 (6). pp. 795-802. ISSN 1836-0947

Orr, D.M. and Paton, C.J. (1997) Using fire to manage species composition in Heteropogon contortus (black speargrass) pastures 2. Enhancing the effects of fire with grazing management. Australian Journal of Agricultural Research, 48 (6). pp. 803-810. ISSN 1836-0947

McKeon, G.M., Day, K.A., Howden, S.M., Mott, J.J., Orr, D.M., Scattini, W.J. and Weston, E.J. (1990) Northern Australian savannas: management for pastoral production. Journal of Biogeography, 17 (4-5). pp. 355-372. ISSN 0305-0270

Orr, D.M., Evenson, C.J., Jordan, D. R., Bowly, P.S., Lehane, K.J. and Cowan, D.C. (1988) Sheep productivity in an Astrebla grassland of south-west Queensland. The Australian Rangeland Journal, 10 (1). pp. 39-47.

Lee, G.R., Orr, D.M. and Hall, T. J. (1980) The feathertop problem in Mitchell grass pastures. Queensland Agricultural Journal, 106 (6). pp. 521-524. ISSN 0157-7786

Conference or Workshop Item

Orr, D.M. and O'Reagain, P. J. (2005) Rainfall and grazing impacts on the population dynamics of Bothriochloa ewartiana in tropical Australia. In: Pastoral Systems in Marginal Environments: Proceedings of a Satellite Workshop of the XXth International Grassland Congress, July 2005, Glasgow, Scotland, July 2005, Glasgow, Scotland.

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