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The establishment of tolerance levels for environmental contamination by pesticides, on the lines of those already in force for the contamination of h...
Read moreDarwin's ecological conceptions and their stimulus to modern experimental ecology are considered. Examples of weed population behaviour are included.-...
Read moreDescribes the design and use of a platinum microelectrode instrument suitable for measuring oxygen flux in waterlogged forest soils. From authors' sum...
Read moreA discussion of some of the roles of fungi in terrestrial ecosystems, with particular reference to their importance in nutrient and energy cycling. KE...
Read moreOptimum summer index is based on the formula I= 10TX + 20S-7R where TX is mean daily temperature (°F), S is mean daily sunshine (h) and R is total rai...
Read moreIn the system described, the light sensor moved down and up a 10-ft steel track placed upright in the crop, taking 15 min/cycle. RB.
Read moreThe findings are discussed in relation to the pollination of sunflowers.
Read moreVariants examined included the rate of input of water to the canopy, the potential evaporation rate from the canopy, the storage capacity of the canop...
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