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Ear pinnae in a neotropical katydid (Orthoptera: Tettigoniidae) function as ultrasound guides for bat detection (2022)
Journal Article
Pulver, C. A., Celiker, E., Woodrow, C., Geipel, I., Soulsbury, C. D., Cullen, D. A., …Montealegre-Z, F. (2022). Ear pinnae in a neotropical katydid (Orthoptera: Tettigoniidae) function as ultrasound guides for bat detection. eLife, 11, Article e77628. https://doi.org/10.7554/eLife.77628

Early predator detection is a key component of the predator-prey arms race and has driven the evolution of multiple animal hearing systems. Katydids (Insecta) have sophisticated ears, each consisting of paired tympana on each foreleg that receive sou... Read More about Ear pinnae in a neotropical katydid (Orthoptera: Tettigoniidae) function as ultrasound guides for bat detection.

Sexual repurposing of juvenile aposematism in locusts (2022)
Journal Article
Cullen, D. A., Sword, G. A., Rosenthal, G. G., Simpson, S. J., Dekempeneer, E., Hertog, M. L., …Broeck, J. V. (2022). Sexual repurposing of juvenile aposematism in locusts. Proceedings of the National Academy of Sciences of the United States of America, 119(34), Article e2200759119. https://doi.org/10.1073/pnas.2200759119

Adaptive plasticity requires an integrated suite of functional responses to environmental variation, which can include social communication across life stages. Desert locusts (Schistocerca gregaria) exhibit an extreme example of phenotypic plasticity... Read More about Sexual repurposing of juvenile aposematism in locusts.

Extracellular nutrient digestion and absorption in the insect gut (2019)
Journal Article
Holtof, M., Lenaerts, C., Cullen, D., & Vanden Broeck, J. (2019). Extracellular nutrient digestion and absorption in the insect gut. Cell and Tissue Research, 377(3), 397-414. https://doi.org/10.1007/s00441-019-03031-9

Insects are the most abundant and diverse class of animals on the planet. One explanation for their success is their extraordinary ability to successfully consume a wide range of foods. Like all heterotrophic organisms, insects need to acquire vital... Read More about Extracellular nutrient digestion and absorption in the insect gut.

Born to win or bred to lose: aggressive and submissive behavioural profiles in crickets (2016)
Journal Article
Rose, J., Cullen, D. A., Simpson, S. J., & Stevenson, P. A. (2017). Born to win or bred to lose: aggressive and submissive behavioural profiles in crickets. Animal behaviour, 123, 441-450. https://doi.org/10.1016/j.anbehav.2016.11.021

Aggression between conspecific males is widespread in the animal kingdom, as is the fact that some individuals are far more aggressive than others. Consistent interindividual differences in behavioural profiles are generally regarded as a hallmark fo... Read More about Born to win or bred to lose: aggressive and submissive behavioural profiles in crickets.