By Michael Allaby
From acid rain, CFC's, and the greenhouse impact to the food-chain and the gene financial institution, Oxford's completely revised Dictionary of Ecology, moment variation presents 5,000 up to date entries on all points of ecology and the environmental sciences. providing direct entry to the main actual and updated info on hand, the dictionary covers an unlimited diversity of topics, from plant and animal body structure, animal habit, evolution, environmental pollutants, and conservation to climatology, meteorology, geomorphology, and oceanography. The Dictionary of Ecology, moment version, has been absolutely up to date to include advancements during this swiftly evolving box, really within the parts of molecular ecology, conservation, and the administration of habitats. additionally incorporated are biographical notes on eminent ecologists and different scientists, in addition to important cross-references that make this quantity a useful reference software for college kids, pros, and someone with an curiosity within the wildlife and our surroundings.
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Extra info for A Dictionary of Ecology (Oxford Paperback Reference)
G. in cats and dogs). dimension analysis The detailed measurement of plant dimensions in productivity studies. Control studies enable estimation of allometric (see ALLOMETRY) relationships between external dimensions and dry-matter production, so that in future studies destructive sampling is unnecessary. Dimension analysis has particular relevance to forest productivity studies and has been much used. dimictic Applied to a lake in which two seasonal periods of free circulation occur, as is typical of lakes in mid-latitude climates.
See also ANADROMOUS; CATADROMOUS; and POTAMODROMOUS. diagenesis All the changes that take place in a sediment at low temperature and pressure following deposition. With increasing temperature and pressure, diagenesis grades into metamorphism. g. sand into sandstone, or peat into coal). diageotropism A tropic response (see TROPISM) of a plant organ in which it takes up a position at right angles to the direction of the force of gravity. diagnostic horizon A soil layer that contains a combination of characteristics typical of that kind of soil.
Drainage network analysis The study of the way in which the pattern of streams in a drainage basin is organized. g. on the link between the importance (or 'order') of a stream segment and its frequency). Certain 'laws' of drainage network composition were derived. The modern approach emphasizes the importance of random processes in an explanation of these 'laws' and is more concerned with the density of the drainage network (drainage density = total length of channels/drainage area). drainage pattern The spatial relationship between individual stream courses in an area.
A Dictionary of Ecology (Oxford Paperback Reference) by Michael Allaby