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Leukocyte profiles indicate nutritional, but not moulting stress in a migratory shorebird, the Common Snipe (Gallinago gallinago)

The relative ratio of the two main leukocyte types, heterophils (H) and lymphocytes (L), is known to change proportionally to the concentrations of stress hormones in the circulating blood. Thus, analysis of leukocyte profiles serves as a reliable proxy of stress in vertebrates, as high H/L ratios indicate stronger stress response. Moult and migration are among the most...

Function of the natalisin receptor in mating of the oriental fruit fly, Bactrocera dorsalis (Hendel) and testing of peptidomimetics

. Funding acquisition: Hong-Bo Jiang. Investigation: Shun-Hua Gui, Yu-Xia Pei, Li Xu, Wei-Ping Wang, Krzysztof Kaczmarek, Janusz Zabrocki. Methodology: Jin-Jun Wang. Supervision: Hong-Bo Jiang, Ronald J

Age effects on reproductive success, nest-site location, and offspring condition in the Great Cormorant Phalacrocorax carbo sinensis

Breeding performance of many vertebrate species is known to improve over the early stages of the life cycle, which has been commonly attributed to the progressive improvement in competences and increasing investment in reproduction. While there is a large body of evidence for age-related variation in fecundity within bird populations, much less is known on whether and how age...

Spatial patterns of extra-pair paternity in a waterbird colony: separating the effects of nesting density and nest site location

Centres of avian colonies are usually associated with reduced predation risk and, thus, attract individuals of high quality, while poor-quality individuals are relegated to peripheral zones. Assuming that the incidence of extra-pair paternity (EPP) is dependent on individual quality, we could expect lower incidence of extra-pair offspring in the central parts of colonies. On the...

Local Heterozygosity Effects on Nestling Growth and Condition in the Great Cormorant

Under inbreeding, heterozygosity at neutral genetic markers is likely to reflect genome-wide heterozygosity and, thus, is expected to correlate with fitness. There is, however, growing evidence that some of heterozygosity-fitness correlations (HFCs) can be explained by ‘local effects’, where noncoding loci are at linkage disequilibrium with functional genes. The aim of this study...

Is it always beneficial to breed in the centre? Trade-offs in nest site selection within the colony of a tree-nesting waterbird

In most of colonial avian species, central parts of the colonies offer higher safety in terms of predatory pressure. However, in heterogeneous habitats, nest sites of high physical quality are likely to offer effective protection against predators or adverse weather conditions regardless of their location within the colony. The aim of this paper was to investigate whether nest...

Risk-benefit assessment of ivabradine in the treatment of chronic heart failure

Risk-benefit assessment of ivabradine in the treatment of chronic heart failure Irmina Urbanek, Krzysztof Kaczmarek, Iwona Cygankiewicz, Pawel PtaszynskiDepartment of Electrocardiology, Chair of ... ; Krzysztof Kaczmarek iwona Cygankiewicz; Pawel Ptaszynski Introduction Heart failure, particularly in patients with impaired left ventricular systolic function, represents a major therapeutic challenge in

Emigration preferences and plans among medical students in Poland

Background Migration and ethical recruitment of health care workers is receiving increased attention worldwide. Europe’s aging population is creating new opportunities for medical doctors for finding employment in other countries, particularly those of a better standard of living. Methods We conducted a survey among 1214 medical students in five out of eleven universities in...

Nekrolog Dominikanów Poznańskich

Acta capitulorum I, s. 0081-7147 - Krzysztof KACZMAREK Uniwersytet im. Adama Mickiewicza w Poznaniu Instytut Historii 1. W polskiej historiografii mediewistycznej wa?ne miejsce zajmuje