The Silesian Beskid represent a considerable mountain area (about 500 sq. km) in the western part of the Western Carpathians. This territory extends from the Olza river valley in the west to the Żywiec Basin in the ...

The present publication is the second part of a doctor dissertation. The first part will be published in "Fragmenta Floristica et Geobotanica", under the title: "The Geobotanical Character of the Pogórze Cieszyńskie". The ...

The present work was carried out on Polygonum viviparum L. from the Tatra Mts. The somatic chromosome number established for Polish representatives of this apomictic species in ca 130 (132); thus Polygonum viviparum in ...

The materials for the present paper were collected during the field work of the Fourth Congress of European Mycologists in Poland. They are mostly derived from the Masurian Lake District, the Białowieża Forest, and ...

The article discusses the role and significance of pests in food products, with special attention to granary pests. There is a preliminary discussion of the damage caused by pests belonging to diffedent animal groups, ...

The author describes one of the most interesting groups of insects, the Coccoidea, drawing attention to their biological and morphological characteristics and to their significance in human economy, and giving directions ...

In Part I the author discusses the importance of studies on the annual rhythm in amphibians from the point of view of General Biology, and the main difficulties in the carrying out of investigations. These investigations ...

1. Researches were carried out in 1962—1965 in the Niepołomice Woods (latitude 50°00 N, longitude 20°20’ E) at Staniątki (forest) and Szarów (peaty meadow). 582 sexually mature female marsh frogs (Rana arvalis arvalis ...

The paper is of advisory character and is intended for biologists engaged in teaching. Directions are given for the search, in their natural habitats, for suitable specimens of invertebrate animals, their culture in ...