Johannes H. van Wyk

TL;DR: A synthesis of the thermal melanism hypothesis which states that dark individuals are at an advantage under conditions of low temperature since they heat up faster than light individuals at a given level of solar radiation is provided.

TL;DR: It is demonstrated that skin reflectance variation across cordylids has significant effects on their thermal balance, and studies investigating the role of varyingSkin reflectance in field populations and species should incorporate fine and broad temporal scales (daily, monthly, and seasonal), environmental variability, and cost-benefit trade-offs of thermoregulation.

TL;DR: The first quantitative data on foraging mode in the cordyliform lizards reveal different foraging behaviours between and within families and hints that active foraging is plesiomorphic in the Gerrhosaurini and further that gerrhosaurusids may have retained active foraged from the common ancestor of Scincidae and Cordyliformes.

TL;DR: Pharmaceutical and personal care products as endocrine disrupting contaminants (EDCs) in South African surface waters as well as fish kills and other fish-eating organisms are identified.

TL;DR: Irrespective of how Tsel was calculated, it showed inconsistent and variable temporal effects across species, and repeatability of Tsel did not change with acclimation to laboratory conditions, which have implications for understanding the evolution of thermoregulation in these and other ectotherms.