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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 morePreliminary estimates suggested that maize contributed 30% of the toal food biomass consumed by the birds during the post-breeding roosting phase, and...
Read moreReports the effects of seasonal grazing by sheep on young Juniperus communis for seven years from 1966 on IBP grazing plots at Aston Rowant national n...
Read moreThe colonisation of collard plants by herbivorous insects was studied in New York in stands of 1, 10 and 100 plants. The stands were cultivated in som...
Read moreThe gut contents of 1206 arthropods of 26 species collected from pitfall traps in cereal crops in southern England in 1973 were examined under a binoc...
Read moreThe author has found that the stages in the ovarian cycle of female of Hylemya (Erioischia) brassicae (Bch.) can be numbered in a similar way to that ...
Read moreThe evidence for the suggestion that smoke pollution is the main selective factor determining melanic frequencies of the polymorphic Adalia bipunctata...
Read moreThe flowers of 3 ornamental Malus spp. (M. aldenhamensis, M. floribunda cv. Hillierii and M. cv. Golden Hornet) and of cvs Cox's Orange Pippin, Worces...
Read moreA previously published model of rainfall interception by forests was generalized, and elaborated to enable separate calculation of through-fall and st...
Read moreSoils derived from serpentine rock (including those developed on spoil heaps around chromite mines) on Unst, Shetland are similar in calcium and magne...
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