Secondary sex ratio of nestlings of the blackbird (Turdus merula)
Journal Title: Acta Biologica - Year 2016, Vol 23, Issue
Abstract
In years 2006–2007 secondary sex ratio of blackbird nestlings in Stefan Żeromski park in Szczecin was studied. 190 nestlings were sexed by genetic analysis. Female: male ratio was found to be 1 : 0,94. No relationships were found between hatching date and sex of nestling and female age and sex of offspring.
Contribution to know the fauna of ground beetles (Insecta, Coleoptera: Carabidae) of Wolin Island
In the course of a one-year investigation (17.04–13.09 2007) 2,144 specimens of carabid beetles belonging to 86 species were collected. Of these, 30 species had not previously been recorded on Wolin Island, and Bembidion...
Differentation of Scots pine (Pinus sylvestris L.) seed orchard in Gidyle on basin of morphological needles trains
The subject of this study was to analyse the variation of Scots pine (Pinus sylvestris L.) seed orchard with regard to a complex of 9 morpho-anatomical traits of needles. The following measurements were carried out: need...
A tale of conquest and crisis: invasion history and status of the American mink (Neovison vison) in Iceland
Invasive alien species are among the major drivers of biodiversity loss, being destructive to native ecosystems, and human economy and well-being. Despite their severe negative impact, tracking the paths of biological in...
Botanical origin of west Pomeranian honeys
Melisopalinological studies were carried out on 24 samples of honeys from beekeepers affiliated in the Regional Association of Beekeepers in Szczecin. Honeys were obtained in 2014. Microscopic slides were prepared by per...
Migration of amphibians and their mortality on the road of Knyszyn Forest Landscape Park
Spring migration and mortality of two common amphibian species on the road in one of the landscape parks in north-eastern Poland (Knyszyn Forest Landscpae Park) were studied in the years 2013–2015. During three years of...