Iliana Medina Guzman

The evolution of conspicuousness in frogs: When to signal toxicity?

Sophie May Roberts, Devi Stuart-Fox, Iliana Medina

Journal article  |  2022  |  JOURNAL OF EVOLUTIONARY BIOLOGY

Many organisms use conspicuous colour patterns to advertise their toxicity or unpalatability, a strategy known as aposematism. Des..

Cracks in the mirror hypothesis: High specularity does not reduce detection or predation risk

Amanda M Franklin, Katrina J Rankin, Laura Ospina Rozo, Iliana Medina, Jair E Garcia, Leslie Ng, Caroline Dong, Lu-Yi Wang, Anne E Aulsebrook, Devi Stuart-Fox

Journal article  |  2021  |  FUNCTIONAL ECOLOGY

Some animals, including certain fish, beetles, spiders and Lepidoptera chrysalises, have such shiny or glossy surfaces that they a..

Environmental gradients predict the ratio of environmentally acquired carotenoids to self-synthesised pteridine pigments

Devi Stuart-Fox, Katrina J Rankin, Adrian Lutz, Adam Elliott, Andrew F Hugall, Claire A McLean, Iliana Medina

Journal article  |  2021  |  ECOLOGY LETTERS

Carotenoids are important pigments producing integument colouration; however, their dietary availability may be limited in some en..

Ecological interactions shape the evolution of flower color in communities across a temperate biodiversity hotspot

Alexander Skeels, Russell Dinnage, Iliana Medina, Marcel Cardillo

Journal article  |  2021  |  EVOLUTION LETTERS

Processes driving the divergence of floral traits may be integral to the extraordinary richness of flowering plants and the assemb..

Male-biased sexual selection, but not sexual dichromatism, predicts speciation in birds

Justin G Cally, Devi Stuart-Fox, Luke Holman, James Dale, Iliana Medina

Journal article  |  2021  |  EVOLUTION

Sexual selection is thought to shape phylogenetic diversity by affecting speciation or extinction rates. However, the net effect o..

Pteridine pigments compensate for environmental availability of carotenoids

Devi Stuart-Fox, Katrina Rankin, Adrian Lutz, Adam Elliott, Andrew Hugall, Claire McLean, Iliana Medina

Journal article  |  2021

Carotenoid-based colours are a textbook example of honest signalling because carotenoids must be acquired from the environment. Ho..

Climate as an Evolutionary Driver of Nest Morphology in Birds: A Review

DM Perez, JL Gardner, I Medina

Journal article  |  2020  |  Frontiers in Ecology and Evolution

Avian nests are critical for successful reproduction in birds. Nest microclimate can affect egg development, chick growth and fled..

From micro- to macroevolution: brood parasitism as a driver of phenotypic diversity in birds.

Iliana Medina, Rebecca M Kilner, Naomi E Langmore

Journal article  |  2020  |  Curr Zool

A fundamental question in biology is how diversity evolves and why some clades are more diverse than others. Phenotypic diversity ..

No link between nymph and adult coloration in shield bugs: weak selection by predators

Iliana Medina, Regina Vega-Trejo, Thomas Wallenius, Damien Esquerre, Constanza Leon, Daniela M Perez, Megan L Head

Journal article  |  2020  |  Proceedings of the Royal Society B: Biological Sciences

Many organisms use different antipredator strategies throughout their life, but little is known about the reasons or implications ..

No honesty in warning signals across life stages in an aposematic bug

I Medina, T Wallenius, M Head

Journal article  |  2020  |  Evolutionary Ecology

Theory predicts that warning signals should exhibit low variation to increase learning efficiency in predators. Many species, howe..