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

2013

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. https://doi.org/10.1071/RJ11068

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. https://doi.org/10.1071/RJ11069

2011

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. https://doi.org/10.1071/rj11032

2010

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. https://doi.org/10.1071/an09090

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. https://doi.org/10.1071/an09145

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. https://doi.org/10.1071/cp09194

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

2009

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. https://doi.org/10.1071/RJ09035

2008

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.

2006

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.

2005

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.

2004

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.

2000

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.

1997

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.

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. https://doi.org/10.1071/A96130

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. https://doi.org/10.1071/A96131

1990

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.

1988

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.

1980

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.