A prolonged light day (16-18 hrs) established before the beginning of the spring moult had no essential effect on its time and did not prevent an autumn moult of Sciuvus vulgaris L. With a short (8 hrs) light day the spring ...

The article deals with certain results of comparative-anatomical analyses and morphometry of bone, cartilage and ligament apparatuses of the lumbar region in certain mammals and with an attempt of their biomechanical analysis.

Gastrophysa viridula De Geer is distributed almost in the whole territory of the Ukraine, except for the most southern regions. It multiplies greatly on different species of sorrel (in the low-lying regions more often on ...

The article deals with a description of three new species of leaf-rollers: Aphelia caucasica Kostjuk from the Great Caucasus (the Mamisonian pass), Pelochrista danilevskyi Kostjuk and Eucosma muguraxana Kostjuk from Tuva ...

By means of the E. S. Smirnov method of taxonomic analysis the morphological affinity of Abramis brama (L.) with A. sapa (P a 11.) and A. ballerus (L.) - representatives of one genus Abramis is shown to be rather smaller ...

The species composition of the typical mammals of the American taiga complex is analysed and its specificity is shown. It is established that the centre of the distribution area of the typical species of this complex is ...