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.
Selective acceptance of brassicaceous plants by the peach potato aphid Myzus persicae: a case study of Aurinia saxatilis
The probing behavior of Myzus persicae (Sulz.) was examined on the ornamental plant Aurinia saxatilis (L.) Desv. that has not been known as a host of M. persicae in nature, and compared to the behavior on cultivated plan...
New and rare water mite (Hydrachnidia) species in Polish fauna found in the Krąpiel River and valley water bodies in Ińskie Lake District
During investigation in river Krąpiel valley 7 water mite species new to Polish fauna (Arrenurus falciger, Bandakia concreta, Eylais degenerata, Hydrachna juncta, Lebertia longiseta, Lebertia (Mixolebertia) sinuata, Rutr...
The Effect of Mowing on Moss Mites (Acari, Oribatida) of Xerothermic Reserve Gruczno
The xerothermic plant communities mowing with different frequency and the brushwood of blackthorn overgrowing the not mowing surface of reserve were investigated. Populations of Oribatida were more numerous in the mowing...
The use of molecular techniques in the taxonomy of water mites (Hydrachnidia, Acari)
The Hydrachnidia (water mites) are a robust component of aquatic communities in terms of both abundance and species richness. They have colonized all types of freshwater habitats and are highly diversified in both lotic...
Changes of water quality of the Osówka Stream flowing through ponds Syrenie Stawy in Szczecin (NW -Poland) in selected periods in the years 1994–2014
The aim of discernment changes in water quality of stream Osówka flowing through ponds Syrenie Stawy in Szczecin (NW-Poland) conducted in the years 1994–2014 the study of basic water chemistry indices in the Osówka Strea...