About my research
My PhD project focuses on the impact of urbanization on organismal health and biodiversity. It is a broad study and includes insects and avian physiology, in addition to a lot of outreach and work with school children, to learn about effects on their wellbeing from working with nature. My fascination for urban ecology stems from an interest in biology, mixed with the aim to produce knowledge applicable to some of the largest challenges our society faces today. I am particularly interested in the interactions of the urban ecosystem. Either it be between trophic levels, such as prey diversity’s effect on the nutritional physiology of birds, or the everyday interaction between human residents of the city and the nature that they encounter here. As the majority of the world population now live in urban settlements, and urbanization keeps increasing, I find that these interactions are equally important as they are interesting to study.
I hold a Bachelor’s in Biology and Master’s in Animal Ecology. Outside of work I enjoy any and all activities outdoors, especially hiking. I’m also particularly interested in art and literature (even when it is not biology related).
Displaying of publications. Sorted by year, then title.
Quantifying the influence of urban biotic and abiotic environmental factors on great tit nestling physiologyJohan Kjellberg Jensen, Ann-Kathrin Ziegler, Christina Isaxon, Lucia Gloria Jiménez Gallardo, Susana Garcia Dominguez, et al.
(2023) Science of the Total Environment, 859
Urban tree composition is associated with breeding success of a passerine bird, but effects vary within and between yearsJohan Kjellberg Jensen, Johan Ekroos, Hannah Watson, Pablo Salmón, Peter Olsson, et al.
Contrasting effects of tree origin and urbanization on invertebrate abundance and tree phenologyJohan Kjellberg Jensen, Sherin Jayousi, Maria von Post, Caroline Isaksson, Anna S. Persson
(2022) Ecological Applications, 32
Migrant blackbirds, Turdus merula, have higher plasma levels of polyunsaturated fatty acids compared to residents, but not enhanced fatty acid unsaturation indexJohan Kjellberg Jensen, Caroline Isaksson, Cas Eikenaar, Martin N. Andersson
(2020) Ecology and Evolution, 10 p.10196-10206
Artificial light at night, in interaction with spring temperature, modulates timing of reproduction in a passerine birdDavide M. Dominoni, Johan Kjellberg Jensen, Maaike de Jong, Marcel E. Visser, Kamiel Spoelstra
(2020) Ecological Applications, 30