Managing the herbage utilisation and intake by cattle grazing rangelands
J. W. Oltjen A and S. A. Gunter B C
+ Author Affiliations
- Author Affiliations
A Animal Science Department, University of California, Davis, CA 95616, USA.
B United States Department of Agriculture, Agricultural Research Service, Southern Plains Range Research Station, 2000 18th Street, Woodward, OK 73801, USA.
C Corresponding author. Email: stacey.gunter@ars.usda.gov
Animal Production Science 55(3) 397-410 https://doi.org/10.1071/AN14602
Submitted: 29 May 2014 Accepted: 31 July 2014 Published: 5 February 2015
Abstract
Rangelands throughout the world provide clean water, fix solar energy in plants, sequester carbon, and offer recreational opportunities, with other ecosystem goods and services, including food from wild and domestic herbivores. Grazing rangelands with cattle requires constant management to balance the economic sustainability of the farm with other ecological services that rangelands provide. The challenges in management arise from the diversity of the rangeland forage resources at extremely large spatial and temporal scales. To be able to predict the performance of cattle grazing in extensive rangeland environments, estimating herbage intake is paramount because it quantifies energy intake and performance. Nutrient demand is the major driver of herbage intake, and characteristics of the sward and terrain of the landscape dictate how this demand is met. System models that integrate changes in weather patterns and herbage over long periods of time will allow farmers and scientist to monitor changes in herbage mass and utilisation. Dynamic models that include herbage growth components sensitive to weather patterns and animal demands are needed to predict how long-term changes in beef herd management will affect performance and range condition. Vegetation indexes captured across biomes with satellites can accurately quantify the dynamics of aboveground net primary production and changes in nutritional value with confidence. The computer software, PCRANCH, is a program for simulating cow–calf herd dynamics over long periods of time. The models within the PCRANCH software can simulate herbage growth and animal utilisation at large spatial and temporal scales needed for rangeland management and allow ranchers to evaluate the impacts of management on other ecological services. Knowing the long-term impact of management changes on swards enable ranchers to anticipate the ecological and economic benefits of improvements or demonstrate a protection of current ecological services.
Additional keywords: ecological services, pasture, simulation models, vegetation indexes.
References
Adiku SGK, Dunn GH, Ahuja LR, Gunter SA, Bradford JA, Garcia L, Andales AA (2010) Simulation of sandsage–bluestem forage growth under varying stocking rates. Rangeland Ecology and Management 63, 546–552.| Simulation of sandsage–bluestem forage growth under varying stocking rates.Crossref | GoogleScholarGoogle Scholar |
Allen-Diaz B (1996) Rangelands in a changing climate: impacts, applications, and mitigation. In ‘Climate change. 1995. Impacts, adoptions, and mitigation of climate change: scientific-technical analysis’. (Eds RT Watson, MC Zinyowera, RH Moss) pp. 131–158. (Cambridge University Press: Cambridge, UK)
Applegate RD, Riley TZ (1998) Lesser prairie-chicken management. Rangelands 20, 13–15.
Ayensu ES, DeFilipps RH (1978) ‘Endangered and threatened plants of the United States.’ (Smithsonian Institution and World Wildlife Fund: Washington, DC)
Bailey DW, Provenza FD (2008) Mechanisms determining large-herbivore distribution. In ‘Resource ecology: spatial and temporal dynamics of foraging’. (Eds HHT Prins, F Van Langevelde) pp. 7–28. (Springer: Dordrecht, The Netherlands)
Bailey DW, Stephenson MB, Pittarello M (2014) Effect of resource and terrain heterogeneity on feeding site selection and livestock movement patterns. Animal Production Science
Barthram GT, Elsto DA, Bolton GR (2000) A comparison of three methods for measuring the vertical distribution of herbage mass in grassland. Grass and Forage Science 55, 193–200.
| A comparison of three methods for measuring the vertical distribution of herbage mass in grassland.Crossref | GoogleScholarGoogle Scholar |
Benvenutti MA, Coates DB, Bindelle J, Poppi DP, Gordon IJ (2014) Can faecal markers detect a short term reduction in forage intake by cattle? Animal Feed Science and Technology 194, 44–57.
| Can faecal markers detect a short term reduction in forage intake by cattle?Crossref | GoogleScholarGoogle Scholar |
Berg WA (1994) Sand sagebrush–mixed prairie. In ‘Rangeland Cover Types of the United States.’ (Ed. T N Shiflet) pp. 99–100. (Society for Range Management: Denver, CO)
Berg WA, Bradford JA, Sims PL (1997) Long-term soil nitrogen and vegetation change on sandhill rangeland. Journal of Range Management 50, 482–488.
| Long-term soil nitrogen and vegetation change on sandhill rangeland.Crossref | GoogleScholarGoogle Scholar |
Bergman CM, Fryxell JM, Gates CC (2000) The effect of tissue complexity and sward height on the functional response of wood bison. Functional Ecology 14, 61–69.
| The effect of tissue complexity and sward height on the functional response of wood bison.Crossref | GoogleScholarGoogle Scholar |
Bergman CM, Fryxell JM, Cormack GC, Fortin D (2001) Ungulate foraging strategies: energy maximizing or time minimizing? Journal of Animal Ecology 70, 289–300.
| Ungulate foraging strategies: energy maximizing or time minimizing?Crossref | GoogleScholarGoogle Scholar |
Booth DT, Tueller PT (2003) Rangeland monitoring using remote sensing. Arid Land Research and Management 17, 455–467.
| Rangeland monitoring using remote sensing.Crossref | GoogleScholarGoogle Scholar |
Boval M, Dixon RM (2012) The importance of grasslands for animal production and other functions: a review on management and methodological progress in the tropics. Animal 6, 748–762.
| The importance of grasslands for animal production and other functions: a review on management and methodological progress in the tropics.Crossref | GoogleScholarGoogle Scholar | 1:STN:280:DC%2BC38ngsFejug%3D%3D&md5=d02fd6bb29bcf212f7b20ad846164016CAS | 22558923PubMed |
Bransby DI, Conrad BE, Dicks HM, Drane JW (1988) Justification for grazing intensity experiments: analysis and interpreting grazing data. Journal of Range Management 41, 274–279.
| Justification for grazing intensity experiments: analysis and interpreting grazing data.Crossref | GoogleScholarGoogle Scholar |
Bremm C, Laca EA, Fonseca L, Mezzalira JC, Elejalde DAG, Gonda HL, Carvalho PCF (2012) Foraging behaviour of beef heifers and ewes in natural grasslands with distinct proportions of tussocks. Applied Animal Behaviour Science 141, 108–116.
| Foraging behaviour of beef heifers and ewes in natural grasslands with distinct proportions of tussocks.Crossref | GoogleScholarGoogle Scholar |
Camp MJ, Rachlow JL, Shipley LA, Johnson TR, Bockting KD (2014) Grazing in sagebrush rangelands in western North America: implication for habitat quality for a sagebrush specialist, the pygmy rabbit. The Rangeland Journal 36, 151–159.
| Grazing in sagebrush rangelands in western North America: implication for habitat quality for a sagebrush specialist, the pygmy rabbit.Crossref | GoogleScholarGoogle Scholar |
Campbell RR (1989) The influence of advancing season on diet quality, intake and rumen fermentation of cattle grazing tallgrass prairie. PhD Dissertation, Oklahoma State University, Stillwater, OK.
Carvalho PCF, Bremm C, Mezzalira JC, Fonseca L, da Trindade JK, Bonnet OJF, Tischler M, Genro TCM, Nabinger C, Laca EA (2015) Can animal performance be predicted from short-term grazing processes? Animal Production Science 55, 319–327.
| Can animal performance be predicted from short-term grazing processes?Crossref | GoogleScholarGoogle Scholar |
Chilibroste P, Gibb MJ, Soca P, Mattiauda DA (2015) Behavioural adaptation of grazing dairy cows to changes in feeding management: do they follow a predictable pattern? Animal Production Science 55, 328–338.
| Behavioural adaptation of grazing dairy cows to changes in feeding management: do they follow a predictable pattern?Crossref | GoogleScholarGoogle Scholar |
Coleman SW, Lippke H, Gill M (1999) Estimating the nutritive potential of forages. In ‘Proceeding of V international symposium on the nutrition of herbivores’. (Eds HG Jung, GC Fahey Jr) pp. 647–695. (American Society of Animal Science: Savoy, IL)
Coleman SW, Gunter SA, Sprinkle JE, Neel JPS (2014) Difficulties associated with predicting forage intake by grazing beef cows. Journal of Animal Science 92, 2775–2784.
| Difficulties associated with predicting forage intake by grazing beef cows.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BC2cXhtFyrtrfE&md5=374fc0302e96f6c2bfedc43400bf592fCAS | 24398834PubMed |
Cook CW (1966) Factors affecting the utilization of mountain slopes by cattle. Journal of Range Management 19, 200–204.
| Factors affecting the utilization of mountain slopes by cattle.Crossref | GoogleScholarGoogle Scholar |
Cros MJ, Duru M, Grarcia F, Matin-Clouaire R (2001) Simulating rotational grazing management. Environment International 27, 139–145.
| Simulating rotational grazing management.Crossref | GoogleScholarGoogle Scholar | 1:STN:280:DC%2BD3MnksVygtA%3D%3D&md5=93227db53d6561d86b721da00c22876fCAS | 11697661PubMed |
Dale VH, Brown S, Haeuber RA, Hobbs NT, Huntly N, Naiman RJ, Riebsame WE, Turner MG, Valone TJ (2000) Ecological principles and guidelines for managing the use of land. Ecological Applications 10, 639–670.
| Ecological principles and guidelines for managing the use of land.Crossref | GoogleScholarGoogle Scholar |
Davies KW, Boyd CS, Beck JL, Bates JD, Svejcar TJ, Gregg MA (2011) Saving the sagebrush sea, an ecosystem conservation plan for big sagebrush plant communities. Biological Conservation 144, 2573–2584.
| Saving the sagebrush sea, an ecosystem conservation plan for big sagebrush plant communities.Crossref | GoogleScholarGoogle Scholar |
Deering DW (1978) Rangeland reflectance characteristics measured by aircraft and spacecraft sensors. PhD Dissertation. Texas A&M University, College Station, TX.
Delagarde R, Peyraud JL, Delaby L, Faverdin P (2000) Vertical distribution of biomass, chemical composition and pepsin–cellulase digestibility in a perennial ryegrass sward: interaction with month of year, regrowth age and time of day. Animal Feed Science and Technology 84, 49–68.
| Vertical distribution of biomass, chemical composition and pepsin–cellulase digestibility in a perennial ryegrass sward: interaction with month of year, regrowth age and time of day.Crossref | GoogleScholarGoogle Scholar |
Derner JD, Briske DD, Boutton TW (1997) Does grazing mediate soil carbon and nitrogen accumulation beneath C4, perennial grasses along an environmental gradient? Plant and Soil 61, 147–156.
| Does grazing mediate soil carbon and nitrogen accumulation beneath C4, perennial grasses along an environmental gradient?Crossref | GoogleScholarGoogle Scholar |
Dobkin DS, Sauder JD (2004) ‘Shrub steppe landscapes in jeopardy. Distribution, abundance, and the uncertain future of birds and small mammals in the intermountain west.’ (High Desert Ecological Research Institute: Bend, OR)
Dumanski J, Desjardins RL, Lal R, Rosegrant M, Luiz de Freitas P, Lander JN, Gerber P, Steinfeld H, Verchot LV, Schuman GE, Derner JD (2010) Supporting evidence for greenhouse gas mitigation in agriculture In ‘Applied agrometeorology’. (Ed. K Stigter) pp. 989–996. (Springer Berlin: Heidelberg, Germany)
Dyksterhuis E (1949) Condition and management of range land based on quantitative ecology. Journal of Range Management 2, 104–115.
| Condition and management of range land based on quantitative ecology.Crossref | GoogleScholarGoogle Scholar |
Forbes JM, Gregorini P (2015) The catastrophe of meal eating. Animal Production Science 55, 350–359.
| The catastrophe of meal eating.Crossref | GoogleScholarGoogle Scholar |
Fortin D, Fryxell JM, Pilote R (2002) The temporal scale of foraging decisions in bison. Ecology 83, 970–982.
| The temporal scale of foraging decisions in bison.Crossref | GoogleScholarGoogle Scholar |
Freese E, Stringham T, Simonds G, Sant E (2013) Grazing for fuel management and sage grouse maintenance and recovery. Rangelands 35, 13–17.
| Grazing for fuel management and sage grouse maintenance and recovery.Crossref | GoogleScholarGoogle Scholar |
Giesen KM (1994) Movements and nesting habits of lesser prairie chicken hens in Colorado. The Southwestern Naturalist 39, 96–98.
| Movements and nesting habits of lesser prairie chicken hens in Colorado.Crossref | GoogleScholarGoogle Scholar |
Gillen RL, Sims PL (2006) Stocking rate and weather impacts on sand sagebrush and grasses: a 20-year record. Rangeland Ecology and Management 59, 145–152.
| Stocking rate and weather impacts on sand sagebrush and grasses: a 20-year record.Crossref | GoogleScholarGoogle Scholar |
Gillen RL, Krueger WC, Miller RR (1984) Cattle distribution on mountain rangeland in northeastern Oregon. Journal of Range Management 37, 549–553.
| Cattle distribution on mountain rangeland in northeastern Oregon.Crossref | GoogleScholarGoogle Scholar |
Gregorini P, Tamminga S, Gunter SA (2006) Review: behavior and daily grazing patterns of cattle. The Professional Animal Scientist 22, 201–209.
Gregorini P, Eirin M, Wade MH, Refi R, Ursino M, Ansin OE, Masino CA, Agnelli L, Wakita K, Gunter SA (2007a) Fasting effects on beef heifer’s evening grazing behavior, intake, and performance. The Professional Animal Scientist 23, 642–648.
Gregorini P, Gunter SA, Masino CA, Beck PA (2007b) Effects of ruminal fill on short-term herbage intake and grazing dynamics. Grass and Forage Science 62, 346–354.
| Effects of ruminal fill on short-term herbage intake and grazing dynamics.Crossref | GoogleScholarGoogle Scholar |
Gregorini P, Gunter SA, Beck PA, Soder KJ, Tamminga S (2008) Review: the interaction of diurnal grazing pattern, ruminal metabolism, nutrient supply, and management in cattle. The Professional Animal Scientist 24, 308–318.
Gregorini P, Gunter SA, Beck PA, Caldwell JD, Bowman MT, Coblentz WK (2009) Short-term foraging dynamics of cattle grazing swards with different canopy structures. Journal of Animal Science 87, 3817–3824.
| Short-term foraging dynamics of cattle grazing swards with different canopy structures.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BD1MXhtlentLbP&md5=a38cbcdabcf21950a6038415f40d665cCAS | 19684258PubMed |
Gregorini P, Gunter SA, Bowman MT, Caldwell JD, Masino CA, Coblentz WK, Beck PA (2011) Effect of herbage depletion on short-term foraging dynamics and diet quality of steers grazing wheat pastures. Journal of Animal Science 89, 3824–3830.
| Effect of herbage depletion on short-term foraging dynamics and diet quality of steers grazing wheat pastures.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BC3MXhsVSqsrjL&md5=c03f462dde5af71820618d9520ee367bCAS | 21642497PubMed |
Gregorini P, Beukes PC, Romera AJ, Levy G, Hanigan MD (2013) A model of diurnal grazing patterns and herbage intake of a dairy cow, MINDY: model description. Ecological Modelling 270, 11–29.
| A model of diurnal grazing patterns and herbage intake of a dairy cow, MINDY: model description.Crossref | GoogleScholarGoogle Scholar |
Gregorini P, Villalba JJ, Provenza FD, Beukes PC, Forbes JM (2015) Modelling preference and diet selection patterns by grazing ruminants: a development in a mechanistic model of a grazing dairy cow, MINDY. Animal Production Science 55, 360–375.
| Modelling preference and diet selection patterns by grazing ruminants: a development in a mechanistic model of a grazing dairy cow, MINDY.Crossref | GoogleScholarGoogle Scholar |
Gunter SA (2014 )
Gunter SA, McCollum FT, Gillen RL, Krysl LJ (1993) Forage intake and digestion by cattle grazing midgrass prairie rangeland or sideoats grama/sweetclover pasture. Journal of Animal Science 71, 3432–3441.
Gunter SA, McCollum FT, Gillen RL, Krysl LJ (1995) Diet quality and ruminal digestion in beef cattle grazing midgrass prairie rangeland or plains bluestem pasture throughout the summer. Journal of Animal Science 73, 1174–1186.
Gunter SA, Beck PA, Hutchison S, Phillips JM (2005) Effects of stocking and nitrogen fertilization rates on steers grazing dallisgrass-dominated pasture. Journal of Animal Science 83, 2235–2242.
Hamel S, Garel M, Festa-Bianchet M, Gillard JM, Cote SD (2009) Spring normalized difference vegetation index (NDVI) predicts annual variation in timing of peak faecal crude protein in mountain ungulates. Journal of Applied Ecology 46, 582–589.
| Spring normalized difference vegetation index (NDVI) predicts annual variation in timing of peak faecal crude protein in mountain ungulates.Crossref | GoogleScholarGoogle Scholar |
Hart RH, Samuel MJ, Test PS, Smith MA (1988) Cattle, vegetation, and economic response to grazing systems and grazing pressure. Journal of Range Management 41, 282–286.
| Cattle, vegetation, and economic response to grazing systems and grazing pressure.Crossref | GoogleScholarGoogle Scholar |
Holechek JL (1988) An approach for setting the stocking rate. Rangelands 10, 10–14.
Huete A, Didan K, Miura T, Rodriguez EP, Gao X, Ferreira LG (2002) Overview of the radiometric and biophysical performance of the MODIS vegetation indices. Remote Sensing of Environment 83, 195–213.
| Overview of the radiometric and biophysical performance of the MODIS vegetation indices.Crossref | GoogleScholarGoogle Scholar |
Karfs RA, Abbott BN, Scarth PF, Wallace JF (2009) Land condition monitoring information for reef catchments: a new era. The Rangeland Journal 31, 69–86.
| Land condition monitoring information for reef catchments: a new era.Crossref | GoogleScholarGoogle Scholar |
Karmiris IE, Nastis AS (2007) Intensity of livestock grazing relation to habitat use by brown hares (Lepus europaeus). Journal of Zoology 271, 193–197.
| Intensity of livestock grazing relation to habitat use by brown hares (Lepus europaeus).Crossref | GoogleScholarGoogle Scholar |
Kawamura K, Akiyama T, Yotota H, Tsutsumi M, Yasuda T, Watanabe O, Wang S (2005a) Comparing MODIS vegetation indicies with AVHRR NDVI for monitoring the forage quantity and quality in inner Mongolia grassland, China. Grassland Science 51, 33–40.
| Comparing MODIS vegetation indicies with AVHRR NDVI for monitoring the forage quantity and quality in inner Mongolia grassland, China.Crossref | GoogleScholarGoogle Scholar |
Kawamura K, Akiyama T, Yokota H, Tsutsumi M, Yasuda T, Watanabe O, Wang G, Wang S (2005b) Monitoring of forage conditions with MODIS imagery in the Xilingol steppe, Inner Mongolia. International Journal of Remote Sensing 26, 1423–1436.
| Monitoring of forage conditions with MODIS imagery in the Xilingol steppe, Inner Mongolia.Crossref | GoogleScholarGoogle Scholar |
Khumalo G, Holechek J (2005) Relationship between Chihuahuan Desert perennial grass production and precipitation. Rangeland Ecology and Management 58, 239–246.
| Relationship between Chihuahuan Desert perennial grass production and precipitation.Crossref | GoogleScholarGoogle Scholar |
Kolasa J, Rollo CD (1991) The heterogeneity of heterogeneity: a glossary. In ‘Ecological heterogeneity’. (Eds J Kolasa, STA Pickett) p. 1. (Springer Verlag: New York)
Laca EA, Ungar ED, Seligman N, Demment MW (1992) Effect of sward height and sward density on bite dimensions of cattle grazing homogeneous swards. Grass and Forage Science 47, 91–102.
| Effect of sward height and sward density on bite dimensions of cattle grazing homogeneous swards.Crossref | GoogleScholarGoogle Scholar |
Larson-Praplan S, George MR, Buckhouse JC, Laca EA (2015) Spatial and temporal domains of scale of grazing cattle. Animal Production Science 55, 284–297.
| Spatial and temporal domains of scale of grazing cattle.Crossref | GoogleScholarGoogle Scholar |
Laycock WA, Conrad PW (1981) Responses of vegetation and cattle to various systems of grazing on seeded and native mountain rangelands in eastern Utah. Journal of Range Management 34, 52–58.
| Responses of vegetation and cattle to various systems of grazing on seeded and native mountain rangelands in eastern Utah.Crossref | GoogleScholarGoogle Scholar |
Li Y, Chen Z, Wang S, Huang D (1999) Grazing experiment for sustainable management of grassland ecosystem of Inner Mongolia steppe. Acta Agrestia Sinica 7, 173–182.
MacDonald KA, Penno JW (1998) Management decisions rules to optimize milk solids production on dairy farms. Proceedings of the New Zealand Society of Animal Production 58, 132–135.
McCall DG (1984) A system approach to research planning for North Island Hill Country. PhD Thesis, Massey University, Palmerston North New Zealand.
McCall DG, Bishop-Hurley GJ (2003) A pasture growth model for use in a whole-farm dairy production model. Agricultural Systems 76, 1183–1205.
| A pasture growth model for use in a whole-farm dairy production model.Crossref | GoogleScholarGoogle Scholar |
Mieres JM (1992) Forage intake and digestibility by growing beef cattle supplemented with corn while grazing native range. MSc Thesis, Oklahoma State University, Stillwater, OK.
Milton EJ, Schaepman ME, Anderson K, Kneubuhler M, Fox N (2009) Progress in field spectroscopy. Remote Sensing of Environment 113, S92–S109.
| Progress in field spectroscopy.Crossref | GoogleScholarGoogle Scholar |
Minson DJ, Haydock KP (1971) The value of pepsin dry matter solubility for estimating the voluntary intake and digestibility of six Panicum varieties. Australian Journal of Experimental Agriculture 11, 181–185.
| The value of pepsin dry matter solubility for estimating the voluntary intake and digestibility of six Panicum varieties.Crossref | GoogleScholarGoogle Scholar |
Mueggler WF (1965) Cattle distribution on steep slopes. Journal of Range Management 18, 255–257.
| Cattle distribution on steep slopes.Crossref | GoogleScholarGoogle Scholar |
National Research Council (1984) ‘Nutrient requirements of beef cattle.’ 6th edn. (National Academy Press: Washington, DC)
National Research Council (1996) ‘Nutrient requirements of beef cattle.’ 7th edn. (National Academy Press: Washington, DC)
National Research Council (2000) ‘Nutrient requirements of beef cattle.’ 7th revised edn. (National Academy Press: Washington, DC)
Oltjen JW, Ahmadi A, Romera AJ, Drake DJ, Woodward SJR (2008) PCRANCH: cow–calf herd simulation system. In ‘World conference on agricultural information and IT, IAALD AFITA WCCA 2008’. pp. 123–126. (Tokyo University of Agriculture: Tokyo)
Owens MK, Launchbaugh KL, Holloway JW (1991) Pasture characteristics affecting spatial distribution of utilization by cattle in mixed brush communities. Journal of Range Management 44, 118–123.
| Pasture characteristics affecting spatial distribution of utilization by cattle in mixed brush communities.Crossref | GoogleScholarGoogle Scholar |
Parsons AJ, Dumont B (2003) Spatial heterogeneity and grazing process. Animal Research 52, 161–179.
| Spatial heterogeneity and grazing process.Crossref | GoogleScholarGoogle Scholar |
Parton WJ, Schimel DS, Cole CV, Ojima DS (1987) Analysis of factors controlling soil organic matter levels in Great Plains grasslands. Soil Science Society of America Journal 51, 1173–1179.
| Analysis of factors controlling soil organic matter levels in Great Plains grasslands.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DyaL2sXmtlGnsbw%3D&md5=a4d1edd5c4b70e760b7ecdea4f7f6dcbCAS |
Paterson DL, Parker VT (1998) ‘Ecological scale: theory and applications.’ (Columbia University Press: New York)
Petersen RG, Lucas HL, Mott GO (1965) Relationship between rate of stocking and per animal and per acre performance on pasture. Agronomy Journal 57, 27–30.
| Relationship between rate of stocking and per animal and per acre performance on pasture.Crossref | GoogleScholarGoogle Scholar |
Pitman JC, Hagen CA, Robel RJ, Loughin TM, Applegate RD (2005) Location and success of lesser prairie-chicken nests in relation to vegetation and human disturbance. The Journal of Wildlife Management 69, 1259–1269.
| Location and success of lesser prairie-chicken nests in relation to vegetation and human disturbance.Crossref | GoogleScholarGoogle Scholar |
Redmon LA, McCollum FT, Horn GW, Cravey MD, Gunter SA, Beck PA, Mieres JM, San Julian R (1995) Forage intake by beef steers grazing winter wheat with varied herbage allowances. Journal of Range Management 48, 198–201.
| Forage intake by beef steers grazing winter wheat with varied herbage allowances.Crossref | GoogleScholarGoogle Scholar |
Rietkerk M, van de Koppel J, Kumar L, van Langevelde F, Prins HHT (2002) The ecology of scale. Ecological Modelling 149, 1–4.
| The ecology of scale.Crossref | GoogleScholarGoogle Scholar |
Romera AJ, Doole GJ (2014) Optimising the balance between individual herbage intake and herbage utilization. Animal Production Science.
Romera AJ, Morris ST, Hodgson J, Stirling WD, Woodward SJR (2004) A model for simulating rule-based management of cow–calf systems. Computers and Electronics in Agriculture 42, 67–86.
| A model for simulating rule-based management of cow–calf systems.Crossref | GoogleScholarGoogle Scholar |
Rondeau R, Kuhn KDB, Grunau L (2013) ‘Vegetation sampling of lesser prairie chicken habitat Comanche National Grassland.’ (Colorado State University). Available at http://www.cnhp.colostate.edu/download/documents/2013/Vegetation_Sampling_of_LEPC_Habitat_Comanche_NG_2013_FINAL.pdf.[Verified 29 April 2014]
Rouse JW, Haas RH, Schell JA, Deering DW (1973) Monitoring vegetation systems in the Great Plains with ERTS. In ‘Third ERTS symposium NASA SP-351 I’. pp. 309–317. (Goddard Space Flight Center: Greenbelt, MD)
Sacks AD, Teague R, Provenza F, Itzkan S, Laurie J (2014) Restoring atmospheric carbon dioxide to pre-industrial levels: re-establishing the evolutionary grassland-grazer relationship. In ‘Geotheropy’. (Ed. T Goreau) In press. (CRC Press: Boca Raton, FL)
Schellberg J, Hill MJ, Gerhards R, Rothmund M, Braun M (2008) Precision agriculture on grasslands: applications, perspectives and constraints. European Journal of Agronomy 29, 59–71.
| Precision agriculture on grasslands: applications, perspectives and constraints.Crossref | GoogleScholarGoogle Scholar |
Schuman GE, Reeder JD, Manley JT, Hart RH, Manley WA (1999) Impact of grazing management on the carbon and nitrogen balance of a mixed-grass rangeland. Ecological Applications 9, 65–71.
| Impact of grazing management on the carbon and nitrogen balance of a mixed-grass rangeland.Crossref | GoogleScholarGoogle Scholar |
Schwinning S, Parsons AJ (1999) The stability of grazing systems revisited: spatial models and the role of heterogeneity. Functional Ecology 13, 737–747.
| The stability of grazing systems revisited: spatial models and the role of heterogeneity.Crossref | GoogleScholarGoogle Scholar |
Scurlock JM, Hall DO (1998) The global carbon sink: a grassland perspective. Global Change Biology 4, 229–233.
| The global carbon sink: a grassland perspective.Crossref | GoogleScholarGoogle Scholar |
Shoop M, McIlvain E (1971) Why some cattlemen overgraze-and some don’t. Journal of Range Management 24, 252–257.
| Why some cattlemen overgraze-and some don’t.Crossref | GoogleScholarGoogle Scholar |
Silviera ML, Rouquette FM, Smith GR, da Silva H, Dubeux JC (2014) Soil-fertility principles for warm-season perennial forages and sustainable pasture production. Forage and Grazinglands 12,
| Soil-fertility principles for warm-season perennial forages and sustainable pasture production.Crossref | GoogleScholarGoogle Scholar |
Sobecki TM, Moffitt DL, Stone J (2001) A broad-scale perspective on the extent, distribution, and characteristics of US grazing lands. In ‘The potential of US grazing lands to sequester carbon and mitigate the greenhouse effect’. (Eds RF Follett, JM Kimble, R Lal) pp. 21–64. (Lewis Publishers: Boca Raton, FL)
Soca P, Espasandin A, Do Carmo M, Laporta J, Astessiano A, Claramunt M, Casal A, Gerna C, Scarlato S, Carriquiry M (2014) Linking temporal and spatial grazing patterns and forage intake with body condition, metabolism and productive response of beef cows grazing Campos grassland. Animal Production Science
Springer TL, Gunter SA, Tyrl RJ, Nighswonger PF (2013) Drought and grazing effects on Oklahoma phlox (Polemoniaceae, Phlox oklahomensis). American Journal of Plant Sciences 4, 9–13.
| Drought and grazing effects on Oklahoma phlox (Polemoniaceae, Phlox oklahomensis).Crossref | GoogleScholarGoogle Scholar |
Stobbs T (1975) Factors limiting the nutritional value of grazed tropical pastures for beef and milk production. Tropical Grasslands 9, 141–150.
Stockdale C, King K (1980) The effects of stocking rate and nitrogen fertilizer on the productivity of irrigated perennial pasture grazed by dairy cows. 1. Pasture production, utilization and composition. Australian Journal of Experimental Agriculture 20, 529–536.
| The effects of stocking rate and nitrogen fertilizer on the productivity of irrigated perennial pasture grazed by dairy cows. 1. Pasture production, utilization and composition.Crossref | GoogleScholarGoogle Scholar |
Sveum CM, Crawford JA, Edge WD (1998) Use and selection of brood-rearing habitat by sage grouse in south central Washington. Western North American Naturalist 58, 344–351.
Swihart RK, Lusk JJ, Duchamp JE, Rizkalla CE, Moore JE (2006) The role of landscape context, niche breadth, and range boundaries in predicting species responses to habitat alteration. Diversity & Distributions 12, 277–287.
| The role of landscape context, niche breadth, and range boundaries in predicting species responses to habitat alteration.Crossref | GoogleScholarGoogle Scholar |
Tews J, Brose U, Grimm V, Tielborger K, Wichmann MC, Schwager M, Jeltsch F (2004) Animal species diversity driven by habitat heterogeneity/diversity: the importance of keystone structures. Journal of Biogeography 31, 79–92.
| Animal species diversity driven by habitat heterogeneity/diversity: the importance of keystone structures.Crossref | GoogleScholarGoogle Scholar |
Thacker ET, Gillen RL, Gunter SA, Springer TL (2012) Chemical control of sand sagebrush: implications for lesser prairie-chicken. Rangeland Ecology and Management 65, 516–522.
| Chemical control of sand sagebrush: implications for lesser prairie-chicken.Crossref | GoogleScholarGoogle Scholar |
Toombs TP, Derner JD, Augustine DJ, Kruger B, Gallegher S (2010) Managing for biodiversity and livestock. Rangelands 32, 10–15.
| Managing for biodiversity and livestock.Crossref | GoogleScholarGoogle Scholar |
Tremont R, McIntyre S (1994) Natural grassy vegetation and native forbs in temperate Australia: structure, dynamics and life-histories. Australian Journal of Botany 42, 641–658.
| Natural grassy vegetation and native forbs in temperate Australia: structure, dynamics and life-histories.Crossref | GoogleScholarGoogle Scholar |
Valentine KA (1947) Distance from water as a factor in grazing capacity of rangeland. Journal of Forestry 45, 749–754.
van Gardingen PR, Foody GM, Curran PJ (1997) ‘Scaling-Up. From cell to landscape.’ (Cambridge University Press: Cambridge, UK)
Villamuelas-Revenga M, Fernandez N, Galvez-Ceron A, Lopez-Olvera JR, Bartolome J, Lopez-Martin JM, Mentaberre G, Ullivarri-Orte A, Fernandez-Aguilar X, Lavin S, Marco I, Serrano E (2013) What does the EVI teach us about Pyrenean chamois diet quality and composition? In ‘II Rupicapra symposium’. pp. 95–97. (Bellver de Cerdanya: Catalania, Spain)
Walburger KJ, Wells M, Varva M, DelCurto T, Johnson B, Coe P (2009) Influence of cow age on grazing distribution in a mixed-conifer forest. Rangeland Ecology and Management 62, 290–296.
| Influence of cow age on grazing distribution in a mixed-conifer forest.Crossref | GoogleScholarGoogle Scholar |
WalliesDeVries MF, Delabout C (1994) Foraging strategy of cattle in patchy grassland. Oecologia 100, 98–106.
| Foraging strategy of cattle in patchy grassland.Crossref | GoogleScholarGoogle Scholar |
Weier J, Herring D (2001) Measuring vegetation (NDVI & EVI). Available at http://earthobservatory.nasa.gov/Features/MeasuringVegetation/. [Verified 23 July 2014]
Wine M, Zou CB, Bradford JA, Gunter SA (2012) Runoff and sediment responses to grazing native and introduced species on highly erodible Southern Great Plains soil. Journal of Hydrology 450–451, 336–341.
| Runoff and sediment responses to grazing native and introduced species on highly erodible Southern Great Plains soil.Crossref | GoogleScholarGoogle Scholar |
Workman J (1986) ‘Range economics.’ (MacMillan Publishing Company: New York)
Zhang X, Friedl AM, Shaaf BC, Strahler HA, Hodges FCJ, Gao F, Reed CB, Huete A (2003) Monitoring vegetation phenology using MODIS. Remote Sensing of Environment 84, 471–475.
| Monitoring vegetation phenology using MODIS.Crossref | GoogleScholarGoogle Scholar |
Zhang Y, Moran MS, Nearing MA, Ponce-Campos GE, Huete AR, Buda AR, Bosch DD, Gunter SA, Kitchen SG, McNab WH, Morgan JA, McClaran MP, Sutherland-Montoya DG, Peters DPC, Starks PJ (2013) Extreme precipitation patterns reduced terrestrial ecosystem production across biomes. Journal of Geophysicial Research: Biogeosciences 118, 148–157.
| Extreme precipitation patterns reduced terrestrial ecosystem production across biomes.Crossref | GoogleScholarGoogle Scholar |
