<b>Indicators of land use by cattle: associations among methods and role of environmental factors
Resumo
The objectives of this study were to investigate the associations among direct and indirect indicators of land use by cattle and to understand the role of some environmental factors on the definition of these indicators. The study was carried out in two areas, Nature Reserve (63.6 ha) and Private Area (30.4 ha), with 53 Hereford animals in each area. Daytime observations of animals’ location were used as direct indicator of land use; while cattle track and dung pat distributions throughout the areas were used as indirect indicators. Environmental characteristics recorded were: terrain slope, prevalence of woody vegetation cover (forests, isolated tress and open grasslands), as well as the position of fences, water sources and salt blocks. Spatial correlations among the three indicators of land use were low (r < 0.30). The environmental factors had lower predictive power of animals’ sightings distribution, followed by cattle tracks, and the highest predictive power occurred for dung pat distribution. We concluded that each one of the methods evaluated in this study addresses a different aspect of land use by cattle. The environmental factors assessed were useful to predict the dung pat distribution, but less valuable to predict the cattle tracks and animals’ sightings distributions.
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Referências
Aarts, G., MacKenzie, M., McConnell, B., Fedak, M., & Matthiopoulos, J. (2008). Estimating space-use and habitat preference from wildlife telemetry data. Ecography, 31(1), 140-160.
Agouridis, C. T., Stombaugh, T. S., Workman, S. R., Koostra, B. K., Edwards, D. R., & Vanzant, E. S. (2004). Suitability of a GPS collar for grazing studies. American Society of Agricultural Engineers, 47(4), 1321-1329.
Anderson, D. M., Estell, R. E., & Cibils, A. F. (2013). Spatiotemporal cattle data. A plea for protocol standardization. Positioning, 4(1), 115-136.
Anderson, D. M., Winters, C., Estell, R. E., Fredrickson, E. L., Doniec, M., Detweiler, C., … Nolen, B. (2011). Characterising the spatial and temporal activities of free-ranging cows from GPS data. The Rangeland Journal, 34(2), 149-161.
Bezerra, M. A., Etchebehere, M. L. C., Saad, A. R., & Casado, F. C. (2009). Geoenvironmental analysis of the Marília region, São Paulo state, Brazil: Erosive processes susceptibility face to the occupation area history. Geociencias, 28(4), 425-440.
Buckland, S. T., Anderson, D. R., Burnham, K. P., & Laake, J. L. (1993). Distance sampling. Estimating abundance of biological populations. London, UK: Chapman and Hall.
Camp, M. J., Rachlow, J. L., Cisneros, R., Roon, D., & Camp, R. J. (2016). Evaluation of global positioning system telemetry collar performance in the tropical Andes of southern Ecuador. Natureza & Conservação, 14(2), 128-131.
Carvalho, P. C. F., & Batello, C. (2009). Access to land, livestock production and ecosystem conservation in the Brazilian Campos biome: The natural grasslands dilemma. Livestock Science, 120(1-2), 158-162.
Davies, K. W., Boyd, C. S., Bates, J. D., & Hulet, A. (2015). Winter grazing can reduce wildfire size, intensityand behaviour in a shrub-grassland. International Journal of Wildland Fire, 25(2), 191-199.
Eastman, R. J. (2009). Tutorial do IDRISI Taiga. Worcester, MA: Clark Labs.
Gamma Design Software. (2000). GS+: geostatistics for the environmental sciences. Version 5.0. Michigan, US: Gamma Design Software, Plainwell.
Ganskopp, D. C., & Bohnert, D. W. (2009). Landscape nutritional patterns and cattle distribution inrangeland pastures. Applied Animal Behaviour Science, 116(2-4), 110-119.
Ganskopp, D., Cruz, R., & Johnson, D. E. (2000). Least-effort pathways: a GIS analysis of livestock trails in rugged terrain. Applied Animal Behaviour Science, 68(3), 179-190.
Hirata, M., Hasegawa, N., Nomura, M., Ito, H., Nogami, K., & Sonoda, T. (2009). Deposition and decomposition of cattle dung in forest grazing in southern Kyushu, Japan. Ecological Research, 24(1), 119-125.
Kaufmann, J., Borka, E. W., Blenis, P. V., & Alexander, M. J. (2013). Cattle habitat selection and associated habitat characteristics under free-range grazing within heterogeneous Montane rangelands of Alberta. Applied Animal Behaviour Science, 146(1-4), 1-10.
Krebs, C. J. (1999). Ecological methodology (2nd ed.). New York, NY: Benjamin Cummings.
Miguel, J. M., Rodriguez, M. A., & Gomez-Sal, A. (1997). Determination of animal behavior environment relationships by correspondence analysis. Journal of Range Management, 50(1), 85-93.
Orr, R. J., Tozer, K. N., Griffith, B. A., Champion, R. A., Cook, J. E., & Rutter, S. M. (2012). Foraging paths through vegetation patches for beef cattle in semi-natural pastures. Applied Animal Behaviour Science, 141(1-2), 1-8.
Putfarken, D., Dengler, J., Lehmann, S., & Härdtle, W. (2008). Site use of grazing cattle and sheep in a large-scale pasture landscape: A GPS/GIS assessment. Applied Animal Behaviour Science, 111(1-2), 54-67.
Schlecht, E., Hülsebusch, C., Mahler, F., & Becker, K. (2004). The use of differentially corrected global positioning system to monitor activities of cattle at pasture. Applied Animal Behaviour Science, 85(3-4), 185-202.
Tate, K. W., Atwill, E. R., McDougald, N. K., & George, M. R. (2003). Spatial and temporal patterns of cattle feces deposition on rangeland. Journal of Range Management, 56(5), 432-438.
Tate, K. W., Dudley, D. M, McDougald, N. K., & George, M. R. (2004). Effect of canopy and grazing on soil bulk density. Journal of Range Management, 57(4), 411-417.
Vendramini, J. M. B., Dubeux, J. C. B., Jr., & Silveira, M. L. (2014). Nutrient cycling in tropical pasture ecosystems. Revista Brasileira de Ciências Agrárias, 9(2), 308-315.
Zamorano-Elgueta, C., Cayuela, L., Rey-Benayas, J. M., Donoso, P. J., Geneletti D., & Hobbs, R. J. (2014). The differential influences of human-induced disturbances on tree regeneration community: a landscape approach. Ecosphere, 5(7), 1-17.
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