Titlebook: Marine Ecological Processes; Ivan Valiela Textbook 19841st edition Springer Science+Business Media New York 1984 biology.decomposition.eco

BRIBE

Dynamics of Populations of Consumersble by simply accounting for the biomass of the individuals in the population. We will return to biomass expressions in Chapter 7, where we deal with secondary production. In this chapter we concentrate on numbers of individuals, since most of the work on growth of populations is done on this basis.

SPASM

Food Selection by Consumerssider the relative vulnerability of food items, mainly in reference to the morphology of prey and the physical structure of the habitat. Last, we consider consequences of food selection, especially in regard to stability of prey populations.

妈妈不开心

关心

Stricture

ingenue

Feeding and Responses to Food Abundanceeir mouth, as in the case of some nematodes, trematodes, leeches, parasitic copepods, and young mammals. Dissolved food is also obtained by some heterotrophs from their endosymbionts, as in the case of zooxanthellae in corals and other cnidarians, and sulfur bacteria in some pogonophorans and bivalves.

disrupt

Taxonomic Structure: Species Diversitybody of publications that have dealt with three major problems: first, how to quantify the clearly observable differences in diversity, second, how are such differences in taxonomic richness of communities generated and maintained, and third, what do such differences mean ecologically.

大方不好

conspicuous

Textbook 19841st editionously, as a synthesis of the field. To achieve these purposes, several objectives were imposed on the writing. The first was, since ecol­ ogists must be the master borrowers of biology, to give the flavor of the eclectic nature of the field by providing coverage of many of the interdis­ ciplinary to

BLANC

Nutrient Cycles: Phosphorus, Nitrogen, and Sulfur In this chapter we look at the transformations, exchanges, and general dynamics of three nutrients: phosphorus, nitrogen, and sulfur. The dynamics of these three elements illustrate how nutrients interact with sediments and water, and the great significance of oxidation state and of the interactions with organisms.