Magdalena Szenejko

• PhD
• PhD at University of Szczecin

Background. Many studies of birds have indicated that offspring sex ratios can vary with environmental and parental traits. On the basis of long-term research, we first evaluated the possible influence of parental age difference and brood characteristics on offspring sex and fitness in multi-brooded Blackbirds Turdus merula. Methodology. The study...

The research problem undertaken in this study is to determine the scale of infection of Eurasian blue tit Cyanistes caeruleus and Great tit Parus major and the biological diversity of their internal parasites, helminths. The aim of the study is to gain new knowledge about the structure of the helminth communities of the Eurasian blue tit and Great...

We studied extra-pair paternity in a socially monogamous bird, the European Blackbird (Turdus merula). The research was conducted in an urban park in Poland. We obtained genetic samples from 36 broods (123 nestlings) of 21 unique pairs. The proportion of broods with some extra-pair nestlings was 17.1% (6 broods), and overall, 13.1% (16 nestlings) o...

Torrenticola meridionalis Di Sabatino & Cicolani, 1990 was originally described from Italy and later has been noted in different parts of the Balkans. Next researches, based on molecular data, have shown that it is a species-complex. This work provides new data on Torrenticola cf. meridionalis based on DNA barcodes of specimens from Poland and conf...

This study aims to determine the effects of copper, copper oxide nanoparticles, aluminium, and aluminium oxide nanoparticles on the growth rate and expression of ACT-1, CDPK, LIP, NFC, P5CR, P5CS, GR, and SiZIP1 genes in five days old seedling of Setaria italica ssp. maxima, cultivated in hydroponic culture. Depending on their concentration (rangin...

A constant increase in dog numbers, especially in large towns, has been observed recently. The presence of dogs in urban spaces increases the risk of pollution by dogs’ feces, which may contain growth forms of parasites including canine, soil-transmitted helminths (cSTHs), most of which have a proven zoonotic potential. This study assessed the freq...

Background Recurring escapes or deliberate releases and subsequent infiltration or establishment of feral populations by individuals from fur farms have been commonly noted since the beginning of fur industry expansion. Once animals have invaded ecosystems adjacent to source farms escapees can change the demography of the feral populations through...

Background. Carex buxbaumii and C. hartmaniorum are sister species of the clade Papilliferae within the monophyletic section Racemosae. An unambiguous identification of these species is relatively difficult due to the interspecific continuum of some morphological characters as well as the intraspecific variability. The study was aimed at determinin...

Polar and subpolar regions are known for their particular vulnerability and sensitivity to the detrimental effects of non-indigenous species, which is well exemplified by the Nootka lupin (Lupinus nootkatensis) spread in Iceland. Since understanding the population and ecological genetics of invasive alien species offers hope for counteracting harmf...

American mink Neovison vison is one of the most harmful non-indigenous species in Iceland and has been proven to be a useful indirect bioindicator and biomonitor for numerous environmental pollutants. Therefore, the main objective of the study was to determine the total nickel concentration in the spleen of 35 females and 30 males obtained from Bro...

New records of water mites (Acari: Hydrachnidia) from the standing waters of Sri Lanka are presented. Fifteen species have been registrated, among them four species, i.e. Piona srilankana (Pionidae), Neumania edytae (Unionicolidae), Krendowskia (Krendowskiella) srilankana (Krendowskiidae), and Mideopsis ewelinae (Mideopsidae) are described as new t...

Knowledge of the composition subunits of proteins glutenins makes it much easier to determine the quality and suitability of the final product obtained from gluten. It is important to remember that not only molecular processes model gluten protein polymorphism. In this study, the genetic diversity of Polish common wheat cultivars was examined at th...

Background: Conservation of noble crayfish (Astacus astacus) populations is becoming particularly important since the number of individuals is rapidly declining across the distribution range of the species in Europe. Five crayfish populations in northwestern Poland have been constantly monitored for two decades. However, the genetic structure of t...

The larvae of water mites of the genus Hydrachna parasitise water bugs and water beetles. Larvae of the genus Hydrachna attach to the thorax and abdomen sternites and tergites under the elytra. Up to now six species of Hydrachna were recorded from Iran, but there are no records on larvae parasitising on water beetles. There is some information abou...

Background. Conventional river engineering operations have a substantial influence on the fluvial ecosystem. Regulation and channelization generally reduce the physical heterogeneity of river beds and banks and the heterogeneity of habitats. They determine the character, diversity and species richness of plant communities. The effect of river regul...

The problem of invasive alien species is currently one of the greatest threats to native biotopes and generates significant economic losses and often also risks to human health and life (Vitousek et al. 1996, Regulation... 2014). Despite efforts to implement systemic solutions at both national and international levels, there are still no effective...

The conference “Science in the Service of Nature – focus on the conservation genetics and combating invasive alien species” is organized in the frames of the international projects – “Science in the service of nature – gene pools conservation of endangered and threatened mammalian species by knowledge transfer and experience sharing on the best pra...

Background Poa pratensis is one of the most common species of meadow grass in Europe. Most cultivars of the species found in Poland were originally derived from its ecotypes. We compared the effectiveness of the RAPD and ISSR methods in assessing the genetic diversity of the selected populations of P. pratensis. We examined whether these methods co...

The present study is a discussion of the interactions between different types of water bodies in the spatial arrangement of a river valley, taking into account landscape data. The Hydrachnidia assemblages in particular types of valley water bodies (oxbows, riparian pools, permanent ponds, flooded alder carrs, sedge marshes, and springs) are strongl...

Measurements were taken of seven morphological characteristics of various forms of Poa pratensis, including ecotypes (12), cultivars (4), and breeding lines (2). Statistically significant differences relating to the average number and length of vegetative shoots and the leaf width of the forms studied were determined using Tukey’s HSD test. Evaluat...

The study included 12 Kentucky bluegrass ecotypes from the areas of the Podlasie Province and the Lower Silesia Province and 2 reference cultivars being different in the form of their use ('Limousine' and 'Eska 46'). Using the Tukey's HSD test, statistically significant differences were demonstrated between the Kentucky bluegrass forms being examin...

The study covered three cultivars of smooth-stalked meadow-grass (Poa pratensis L.): 'Skiz', 'Limousine', 'Skrzeszowicka' ('Sk 46') and two strains: 'Dresa' and 'Chałupy'. The collected material was obtained from IHAR Botanic Garden of Bydgoszcz. The polymorphism of the isoenzymatic proteins based on electrophoretic analysis were evaluated. The fol...