Titlebook: Rarity; Kevin J. Gaston Book 1994 Kevin J. Gaston 1994 conservation.dynamics.population.temporal dynamics

暫時(shí)中止

refraction

職業(yè)拳擊手

HERE

What is rarity?,tition, density dependence, carrying capacity, niche, stability and community have all, and often for prolonged periods, been debated (e.g. Pimm, 1984; Giller and Gee, 1987; Murray, 1987; Dhondt, 1988; Keddy, 1989; Schoener, 1989). Such discussion of the use and interpretation both of words and conc

OVER

Abundances and range sizes: measuring rarity,is, however, no such thing as . abundance or . range size of a species, even at a particular spatial and temporal scale. Rather, they are both generic terms, embracing several important distinctions. Answers depend on which groups of individuals are and are not included, and the methods by which abu

ligature

豎琴

一大群

Conservation and rarity,Previous chapters should have established beyond any doubt that this is not so. There are many questions about rarity which are of interest and yet have little directly to do with conservation. Nonetheless, it would be wrong to ignore this, the most important of the applied dimensions to the study o

反應(yīng)

immunity

What is rarity?,ent of a rigorous framework in which both theoretical and empirical work can be placed. With regard to the study of rarity no general theory and no such framework presently exist. At the outset, therefore, we would do well to be clear about what we mean by rarity and rare species.