Kasja MalkocMax Planck Institute for Ornithology · Evolutionary Physiology
Kasja Malkoc
Master of Science
Evolutionary Physiologist • Do individuals differ in plasticity when environment changes? Which are the consequences?
About
3
Publications
397
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28
Citations
Citations since 2017
Introduction
I am interested in understanding how among- and within- individual variation in physiological and behavioral responses shapes the adaptability to changing environmental conditions. I mostly focus on hormonal and metabolic traits, measured within a reaction norm framework. By integrating laboratory and field studies, I aim at determining: 1. the existence and the causes of this individual variation (esp. in plasticity) to ecologically-relevant environmental gradients; 2. its fitness implications
Publications
Publications (3)
Hormones are highly responsive internal signals that help organisms adjust their phenotype to fluctuations in environmental and internal conditions. Our knowledge of the causes and consequences of variations in circulating hormone concentrations has improved greatly in the past. However, this knowledge comes from population-level studies which gene...
Metabolic rate is a key ecological variable that quantifies the energy expenditure needed to fuel almost all biological processes in an organism. Metabolic rates are typically measured at the whole-organism level (woMR) with protocols that can elicit stress responses due to handling and confinement, potentially biasing resulting data. Improved, non...
The identification of the carcinogenic risk of chemicals is currently mainly based on animal studies. The in vitro Cell Transformation Assays (CTAs) are a promising alternative to be considered in an integrated approach. CTAs measure the induction of foci of transformed cells. CTAs model key stages of the in vivo neoplastic process and are able to...
Projects
Project (1)
We aim at understanding whether metabolic rate measured at the cell level in avian erythrocytes can be predictive of metabolic rate quantified at the organismal level via traditional respirometry (i.e., indirect calorimetry). While testing so, we also acknowledge the potential role of glucocorticoid hormones in shaping metabolic rate at different scales. If blood metabolic rate associates positively with organismal metabolic rate, then we might be able to use the former - characterized by a minor burden to the animal and a greater versatility in field conditions- to infer the latter, opening new possibilities for ecologists and evolutionary physiologists.
