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Flea burden and its influence on nest selection and use in Dryomys nitedula Pallas, 1778

100%

Duma I.

Acta Theriologica

2013

tom 58

nr 4

Since dormice usually use natural tree hollows or artificial nest boxes as nest sites and these nests are reused from 1 year to another, the present study investigated how the parasite loads from old nests affected the behaviour of the forest dormouse Dryomys nitedula Pallas, 1778. Dormice were subjected to three different experiments: 1. They were given the choice of a nest box infected with ectoparasites and a new unused nest box; 2. Dormice were given the choice of a treated (uninfected) previously used nest boxes and previously used nest box that was infected; and 3. Using infrared motion sensor cameras, we tested weather they preferred to avoid nest boxes when only infected nests were available. The results revealed that the females with pups are pickier when choosing the nursery site. These preferred empty nest boxes or nest boxes with treated nests instead of the infested ones. However, non-breeding adults and sub-adults showed indifference to the flea infestation of the nest.

Nirenberg-type problems in Banach lattices

63%

Duma A. , Duma I.

Journal of Applied Analysis

2010

tom Vol. 16, nr 2

189-197

A slightly modified version of the celebrated Nirenberg problem concerning expanding maps is considered. A positive answer is given for a type of lattice-expansive operators in discrete Hilbert lattices. Our approach is motivated by the study of the infinite systems of nonlinear equations.

Biologia osadu czynnego oczyszczalni ścieków "Bando” na Bielanach

63%

Starzyk K. , Duma I.

Zeszyty Naukowe Akademii Górniczo-Hutniczej w Krakowie. Sozologia i Sozotechnika

1990

tom 28

Oczyszczalnia "Bando"-doświadczenia przy montażu, eksploatacji oraz jej sprawność hydrodynamiczna

51%

Jelonek A. , Szlachta J. , Duma I.

Zeszyty Naukowe Akademii Górniczo-Hutniczej w Krakowie. Sozologia i Sozotechnika

1990

tom 28