Parus major

Broggi Obiols Juli

Foto de perfil del investigador Broggi Obiols Juli


My main research line is focused on the ecophysiological and ecomorphological adaptations that allow passerines to withstand winter/summer extreme conditions. I have combined different approaches ranging from correlational and experimental work on wild populations to laboratory experiments with captive wild and domestic animals. I focus on the adaptive significance of winter BMR variation and the ways to preserves and absorve energy form the environment through radiation in wild great tit populations accross Europe. I am interested in the specific relation between BMR and body condition, and set up a new theoretical framework to study energy management in the context of a starvation –predation trade-off, moving the focus from “the optimal body mass theory”, to a new perspective in where costs of maintenance are simultaneously regulated. Lately, I focused on the effects of food supplementary feeding on wild birds, and the implications of winter energy management policies and their potential carry-over effects over subsequent life-history episodes. I am specifically interested in the mechanistic proceeses that underly such carry over effects.

Another line of research deals with maternal transfer of antibodies, and to a wider extent on transgenerational effects on immunity and metabolism. I have been studying the influence of maternal effects in the inheritance of immune response in wild house sparrows, and the potential implications for the concept of “social immunity”.

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