Titlebook: Rotatoria; Proceedings of the 2 H. J. Dumont,J. Green Conference proceedings 1980 Dr. W. Junk bv Publishers, The Hague 1980 Fauna.ecology.e

violate

A Perspective on Aging in Rotifers,s is usually either mean lifespan or rate of survivorship. After a brief consideration of the literature published since the last major review (King; 1969), the results of a series of experiments are presented. Males and females of three genetically distinct clones of . were used for a factorial lif

addition

Experimental Observations on Maternal Reproductive Rate and Offspring Characteristics, order to determine their life tables. Cohorts and parental life schedules are compared and discussed. A sort of correlation between offspring fecundity and life span and maternal rate of egg production could be established.

Eviction

Some Problems in the Embryogenesis of Habrotrocha Rosa Donner 1949,cteristic stages, mean number of eggs laid (30 eggs) and average time of egg development (31.5 hours). Ontogenesis was studied (until the stage of early organogenesis) and a spiral type of cleavage and epibolic gastrulation were observed. The paper also presents data on the origin of the digestive s

柳樹；枯黃

慢跑

該得

Perennial長(zhǎng)期的

In Situ Clearance Rates of Planktonic Rotifers,terium ., a yeast ., and alga .. Rates were below 10 μl/ anim/h but varied significantly among species. ., and . ingested all three tracer cells but rates varied substantially with tracer cell-type. . and . ingested only the algal cells. Co-occurring forms of . and species of . differed markedly in

植物學(xué)

難理解

Observations on the Susceptibility of Some Protists and Rotifers to Predation by Asplanchna Girodi,ally dissociated from their matrix; 2) rarely, if ever, captured . and intact . and 3) generally rejected the peritrich ciliate . sp. and the dinoflagellate . sp. Coloniality and secretion of a gelatinous matrix in . can be viewed as adaptations to limit mortality from invertebrate predation. Intras

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