presentation figures
simple diagrams designed to more effectively communicate complex concepts, processes, and methodology
Trinidadian guppies (Poecilia reticulata) vary greatly in colour patterns among males. In particular, two main competing selection pressures have resulted in the same colour phenomenon in multiple river systems. Downstream, high predation results in selection against bright colours that are easily seen by predators; as a result, males are duller. Upstream, there are fewer predators, and sexual selection by female choice favours more brightly coloured males. The Mank Lab studies the genetic basis for colour and sexual dimorphism in these guppies.
Guppies can be found in a number of tropical places; the ones used in this particular study were collected in Trinidad, from the Aripo, Quare, and Yarra river systems.
An experimental setup used by Yvonne Dzal. The divided chamber allows Yvonne to measure cutaneous respiration and ventilation in little brown bats, contributing to her research on the effect of white-nose syndrome. This figure was recently published in a review in Conservation Physiology.
Another of Yvonne’s experimental setups, this one used to measure whole-body respiration. You can read more about Yvonne’s work here.
