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Indigenous sorghum varieties in N. Nigeria yielded best in their own localities. All local varieties of a locality tended to flower at the same time e...
Read moreSee also W.A. 20, 2439 and 2892. Experimental simulation of the theoretical effects of ploughing, both to different depths, and at different times of ...
Read moreThe study of a desert landscape consisting of C3 shrublands and C4 grasslands demonstrated the feasibility of mapping desertification processes on a r...
Read moreThis article is a plain language summary of the study, The value and limitations of local ecological knowledge: Longitudinal and retrospective assessm...
Read moreIn marine and terrestrial ecosystems, organisms are affected by environmental variations that cause fluctuations in population size. The harvest-inter...
Read moreBird collisions with aircraft pose a serious threat to human safety. However, broad-scale patterns in how bird strikes might vary through space and ti...
Read moreFragmentation of tropical forest is accelerating at the same time that already cleared land reverts to secondary growth. Fragments inexorably lose dee...
Read moreA simplified method for the estimation of the intrinsic rate of natural increase (rm) of aphids is proposed. Having determined the prereproductive tim...
Read more2. Studies of feeding routine during daylight showed that in winter waders generally spent least time in the roosts at high water and fed for the grea...
Read moreA simulation model is described which demonstrates the role of parasitic Hymenoptera in influencing the numbers of the aphid Sitobion avenae on cereal...
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