Titlebook: Biology of Cladocera; Proceedings of the S V. Ko?ínek,D. G. Frey Conference proceedings 1991 Springer Science+Business Media Dordrecht 1991

埋葬

監(jiān)禁

Feeding behaviour and morphology of filtering combs of ,,all size of the filtering comb on the thoracic limb 3, measured as seta length, length of the base of the comb and number of setae (population 1). One month cultivation of this population in low food conditions (1.5 mgC 1.) in the laboratory resulted in twofold increase in size of the filtering comb

隨意

竊喜

Effect of previous feeding conditions on survival in , (Crustacea: Cladocera),describing the actual competitive ability of populations in periods of food limitation. Two populations (1 and 2) of . Forbes coming from two enclosures with a low (< 1 mgC 1.) and a high (about 3 mgC 1.) seston level were examined in their resistance to starvation. Juveniles of both populations sur

verdict

發(fā)生

Indirect effect of planktivorous fish on the growth and reproduction of ,, by Y-O-Y roach when compared with control animals reared in the same water with the exclusion of fish. The smaller size of experimental primiparae resulted from smaller increments in some instars and from the earlier maturation of about two-thirds of those that matured in the 4th instar, while the

absorbed

Density and size distribution of , populations at different fish predation levels,removed in high predation variants, and the differences of the mean body length both in adults and juveniles are apparent between low predation enclosure and enclosure without fish. . was replaced by . and . in the enclosure without fish. The decline of densities and the substantial (30–50%) and fas

不規(guī)則

https://doi.org/10.1007/978-3-531-91947-8uccession of clones coexisting within one population, or 2. the size of the filtering area changes gradually as an individual adaptation during the moulting. No evidence supporting the ‘clonal hypothesis’ was found. On the contrary, the adaptability of the filtering comb is the same in a natural population as it is in a clone and in individuals.

JADED

Suppository

Mechanisms of the filtering area adaptation in ,,uccession of clones coexisting within one population, or 2. the size of the filtering area changes gradually as an individual adaptation during the moulting. No evidence supporting the ‘clonal hypothesis’ was found. On the contrary, the adaptability of the filtering comb is the same in a natural population as it is in a clone and in individuals.