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On shortgrass prairie in N.E. Colorado with dominant Bouteloua gracilis, Buchloe dactyloides, Agropyron smithii and Artemisia frigida, antelope and ca...
Read moreShoot growth rates of perennial ryegrass cv. S24 were examined in spring and autumn in relation to seasonal changes in temperature in the region of th...
Read moreThe foraging range and constancy of two colonies of Bombus terrestris were investigated on a mixed arable farm in the UK using harmonic radar, which h...
Read moreThe effects of simulated urine deposition on the selectivity and intensity of cattle grazing on Agropyron smithii [Elymus smithii] tillers were studie...
Read moreThe effect of different intensities of winter grazing by barnacle geese, Branta leucopsis, on the yields of agricultural grasslands dominated by Loliu...
Read moreChanges in density of sown E. lehmanniana and native grasses (dominated by Digitaria californica, Bouteloua curtipendula, B. eriopoda, Muhlenbergia po...
Read moreVegetation change during the first 6 years of secondary succession in a calcareous former arable field and the effect of controlled grazing by sheep w...
Read moreThis study describes a modified mowing regime that allowed green-winged orchids Anacamptis morio, discovered in 1985 on coastal grassland on a rifle r...
Read moreIn the above area it is common practice to grow sorghum and other crops under trees of A. albida, which is leafless during the rainy season. Crop yiel...
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