Kulaszewicz I, Wojczulanis-Jakubas K, Jakubas D
Reproduction is a demanding phase of bird’s
life cycle and imposes various physiological challenges. Here, we examined the
cost of incubation and chick rearing period in males and females little auks (Alle alle). We expected increase in OS
with the progress of breeding period (due to increasing energetic demands) and
higher values in females (due to high initial investments in production of a
large egg). Surprisingly, we found higher OS during incubation compared to
chick‐rearing period, suggesting that incubation is a highly demanding
reproductive phase in terms of oxidative balance. Also, in contrasts to our
expectations, we did not find sex differences in OS throughout the studied
periods of breeding. Here, you can find more detailed results and their full interpretation.
New species of Tardigrada on Spitsbergen
"Etymology.— Karen means Katarzyna in Norwegian. I dedicate this new species to Katarzyna Wojczulanis−Jakubas from the University of Gdańsk (Poland) who collected the material."
Thank you Krzysztof!