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A computer model was developed simulating the mating behaviour and population increase of adults of Spodoptera littoralis (Boisd.) in an isolated grou...
Read moreGreenhouse experiments showed that seeds of this Australian tree germinated within 3 days after planting, even under water. Greater ht. growth was obt...
Read moreSprings are the major source of freshwater in many small mountainous watersheds within the Himalayan region. In recent years, their flow rates have di...
Read moreThis special issue contains 6 papers with the aim of synthesizing and deepening the understanding of the ecology and functioning of forest recovery in...
Read moreSeed collected from natural stands of P. menziesii growing at (a) 250, (b) 520 and (c) 880 m alt. in Oregon, and from a cross between trees in (a) and...
Read moreLosses of nutrients from young grass/clover swards in an establishing phase and older swards in a maintenance phase on china clay wastes were examined...
Read moreFive possible solutions to the problem of over-wintering brent geese (Branta bernicla) grazing on farmers' crops in the UK are described: maintaining ...
Read morePresent land use in China is described. Problems include: desertification; erosion; salinization; underdeveloped land; and mining dereliction. Remedia...
Read moreMany invasive species are introduced by trade, and there is a need for studies of pre-emptive measures to lower the risk of introductions, as post-est...
Read moreLosses of domestic sheep grazing unattended on upland summer ranges in the Snøhetta plateau of south central Norway during 1979-94 were examined, in r...
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