Body Size: The Structure and Function of Aquatic Ecosystems by Alan G. Hildrew, David G. Raffaelli, Ronni Edmonds-Brown
By Alan G. Hildrew, David G. Raffaelli, Ronni Edmonds-Brown
Ecologists have lengthy struggled to foretell beneficial properties of ecological structures, similar to the numbers and variety of organisms. the big variety of physique sizes in ecological groups, from tiny microbes to massive animals and vegetation, is rising because the key to prediction. in keeping with the connection among physique dimension and lines resembling organic charges, the physics of water and the quantity of habitat on hand, we are able to comprehend styles of abundance and variety, biogeography, interactions in meals webs and the impression of fishing, including as much as a possible 'periodic desk' for ecology. impressive development at the unravelling, describing and modelling of aquatic nutrition webs, revealing the basic function of physique measurement, makes a booklet emphasising marine and freshwater ecosystems really apt. the following, the significance of physique dimension is tested at a number scales that would be of curiosity to specialist ecologists, from scholars to senior researchers.
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Additional info for Body Size: The Structure and Function of Aquatic Ecosystems
Lengths of suspension feeders vary over five orders of magnitude, from singlecelled protists to baleen whales, while the Reynolds number of such organisms in general ranges between Re % 10À6 (bacteria) and Re % 108 (large whales), or 14 orders of magnitude (Nachtigall, 2001). This provides a dramatic range of conditions in which suspension feeders operate, and leads to an array of adaptations to this feeding mode. Despite such large variations in body size, aerosol theory co-opted from engineering (Rubenstein & Koehl, 1977) suggests that there are only five inclusive mechanisms by which particles can encounter collecting elements: (i) direct interception, (ii) inertial impaction, (iii) gravitational deposition, (iv) diffusional deposition and (v) electrostatic attraction.
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