Figure 6. A hypothetical (but realistic) annual budget of
energy and activity of a MB=40g (lean mass)Dromiciops gliroides , summarized from descriptions of the
reproductive cycle (Muñoz-Pedreros et al., 2005), seasonal variations in
activity, adiposity, and body mass (Celis-Diez et al., 2012; Franco et
al., 2017) and food availability (di Virgilio et al., 2014; Franco et
al., 2011; Quijano, 2008). After reproduction, D. gliroidesreduce activity and energy expenditure and accumulate almost twice their
body size in fat (Franco et al., 2017). Fat accumulation was estimated
from body mass fluctuations using quantitative magnetic resonance, which
indicated that animals could double their body mass in autumn (Mejías et
al., 2022).