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 gains of ecological structures, comparable 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 accordance with the connection among physique measurement and lines comparable to 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 foodstuff webs and the influence of fishing, including as much as a possible 'periodic desk' for ecology. outstanding growth at the unravelling, describing and modelling of aquatic foodstuff webs, revealing the elemental position of physique dimension, makes a ebook emphasising marine and freshwater ecosystems quite apt. the following, the significance of physique measurement is tested at more than a few scales that might be of curiosity to expert ecologists, from scholars to senior researchers.

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Extra resources for Body Size: The Structure and Function of Aquatic Ecosystems

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Food size selection among copepods. Ecology, 54, 909–914. Wotton, R. S. (1994). The Biology of Particles in Aquatic Systems. Boca Raton: Lewis Publishers. Wotton, R. , Malmqvist, B. & Leonardsson, K. (2003). Expanding traditional views on suspension feeders – quantifying their roles as ecosystem engineers. Oikos, 101, 441–443. CHAPTER THREE Life histories and body size DAVID ATKINSON The University of Liverpool ANDREW G . HIRST British Antarctic Survey Introduction This chapter demonstrates how investigating patterns of survival, reproduction, growth and development – life histories – can improve understanding and prediction in diverse areas of ecology ranging from microevolution and population dynamics of individual species, to ecosystem function and biogeochemistry.

Second is the ultimate effect, in which the environment selects only those individuals whose life history response to environmental information leads to enhanced fitness. To illustrate this, life-history theory predicts that additional mortality on large individuals selects for smaller size at maturity, such as in species of Cladocera whose larger individuals are most at risk from fish predation (Brooks & Dodson, 1965). Thus, adaptive plasticity would involve reducing size at maturity in the presence of fish cues.

Cambridge: Cambridge University Press. Sebens, K. P. (1982). The limits to indeterminate growth: an optimal size model applied to passive suspension feeders. Ecology, 63, 209–222. Sebens, K. P. (1987). The ecology of indeterminate growth in animals. Annual Review of Ecology and Systematics, 18, 371–407. Shimeta, J. & Jumars, P. A. (1991). Physical mechanisms and rates of particle capture by suspension feeders. Oceanography and Marine Biology Annual Review, 29, 191–257. Shimeta, J. & Koehl, M. A.

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