Titlebook: Cladocera; Proceedings of the C László Forró,David G. Frey Conference proceedings 1987 Dr W. Junk Publishers, Dordrecht 1987 Danube.Groundw

trigger

Dr W. Junk Publishers, Dordrecht 1987

凹室

Junction

archenemy

Revision of three species of the genus , Fischer, 1850described from lake Dalai-nor in northern China, . from lake Chanka situated on the border between USSR and China, north of Vladivostok, and . from the lake Bolon in the catchment area of the river Amur. Topotypes were compared with other populations and new synonymy suggested: previously described

饰带

A paedomorphic form type of , SARS, 1903 (Cladocera, Daphniidae) from Mongoliadge, leading to retrocurved shape of the head and a concavity of the dorsal shell margin. This excessive form type of the adult is a paedomorphic characteristic. It is assumed, that the retrocurved elongation of the head and the crescent-like shape of the valves are adaptations to a pelagic mode of

Prognosis

The biogeography of Australian ,: clues of an ancient (>70 m.y.) origin for the genushin these three groups is consistent with a Gondwanan or pre-Gondwanan origin for each group. These data suggest an even more ancient origin for the genus ...The finding that . must have been separated from . since Gondwanan times is consistent with recent biochemical data on the phylogenetic relati

药物

Is ephippial morphology a useful taxonomic descriptor in the Cladocera? An examination based on a stre distinguished on the basis of the following features: number of loculi, presence of bifid appendages, texture of dorsal ridge, texture of valve surface. The extent of the differences observed indicates that a species complex of . may be present in Australia, and suggests that ephippial morphology

泥沼

Lyme-disease

Inter- and intraspecific variations in limb morphology of some south-east Australian cladocerans: Ims.d. in . adults (2.34 ± 0.07 mm) was 0.17–0.25 .m. I.s.d. increased with increasing body size for . and .. Variation in i.s.d. between nine adult cladoceran taxa (several of which coexisted) also was examined; significant differences did occur, but the size range was small (0.14 to 0.58 .m). The po

轿车

A Far East Moina, , Ishikawa, 1896 found in an Italian ricefieldattern of cladoceran species, characterized by the dominance of Moinidae in the early phase the rice cultivation (from May to July). In particular a species new for Italy, . Ishikawa, 1896, typical of Far East ricefields, was found; it was probably introduced into Italy with seeds and constitutes a