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An automatic multichannel selector system and a simple, inexpensive amplifier are described for recording the output from Richards and Ogata droplet t...
Read moreSamples taken at Cedar Creek, Minnesota, showed that the above-ground parts of cattail [Typha angustifolia] and maize ecosystems contained much the sa...
Read moreSuggests that it is possible to calculate the plant or community phytomass from analysis of forestry sample-plot data of Derbholz (above-ground wood &...
Read moreGoose (Anser anser and A. brachyrhynchus) grazing on autumn-sown barley was simulated in the field in NE Scotland by removal of 25, 50, 75 or 100% of ...
Read moreObservations were made in southern England in 1970-71 on aphid populations infesting the aerial shoots of spring cereals. Aphids mainly Acyrthosiphon ...
Read moreGrowth of P. stratiotes at the southern-most tip of the man-made Volta Lake in Ghana was measured over 1 year. Biomass and relative growth rate remain...
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...
Read morePlants face a constant struggle to acquire nutrients and defend themselves against herbivores. Mycorrhizae are fungal mutualists that provide nutrient...
Read moreA comparison of stands of immature (15 yr old) Avicennia marina growing near a fluoride chemical installation and a relatively unpolluted area showed ...
Read moreReports a study in which four unmanaged, even-aged stands of second-growth mixed hardwoods 67-97 years old, dominated by Quercus spp., near Asheville,...
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