We back for another invertebrate versus amphibian episode. But this time we’re focusing on carabid beetles and their relentless consumption all amphibian life. They have managed to turn the tables on their would be predator in a remarkable case of role-reversal. Species of the Bi-week is a beautiful frog with a fittingly macabre name. FULL REFERENCE LIST AVAILABLE AT: herphighlights.podbean.com


Main Paper References:

Wizen, G., and A. Gasith. 2011. “Predation of amphibians by carabid beetles of the genus Epomis found in the central coastal plain of Israel.” Zookeys 100: 181–191.

Wizen, G., and A. Gasith. 2011. “An unprecedented role reversal: Ground beetle larvae (Coleoptera: Carabidae) lure amphibians and prey upon them.” PLoS One 6: 1–6.

Species of the Bi-Week:

Dias, I. R., C. F. B. Haddad, A. J. S. Argôlo, and V. G. D. Orrico. 2017. “The 100th: An appealing new species of Dendropsophus (Amphibia: Anura: Hylidae) from northeastern Brazil R. Castiglia.” PLoS One 12: e0171678.

Other Mentioned Papers/Studies:

Barkai A, McQuaid C (1988) Predator–prey role reversal in marine benthic ecosystems. Science 242: 62–64.

Beckmann, C, and R Shine. 2011. “Toad’s Tongue for Breakfast: Exploitation of a Novel Prey Type, the Invasive Cane Toad, by Scavenging Raptors in Tropical Australia.” Biological Invasions 13 (6): 1447–55.

Brodie Jr., ED. 1977. “Hedgehogs Use Toad Venom in Their Own Defence.” Nature 268 (5621): 627–28.

Choh, Y., Takabayashi, J., Sabelis, M. W., & Janssen, A. (2014). Witnessing predation can affect strength of counterattack in phytoseiids with ontogenetic predator–prey role reversal. Animal Behaviour, 93, 9-13.

Escoriza, D., L. Mestre, G. Pascual, and J. Buse. 2017. “First case of attack of an adult Bufo spinosus Daudin, 1803 by a carabid beetle larva of Epomis circumscriptus (Duftschmid, 1812).” Bol. Asoc. Herpetol. Esp. 28: 2006–2008.

Petschenka, G, S Fandrich, N Sander, V Wagschal, M Boppré, and S Dobler. 2013. “Stepwise Evolution of Resistance to Toxic Cardenolides via Genetic Substitutions in the Na+/K+-ATPase of Milkweed Butterflies (Lepidoptera: Danaini).” Evolution 67 (9): 2753–61.

Scudder, GGE, and J Meredith. 1982. “The Permeability of the Midgut of Three Insects to Cardiac Glycosides.” Journal of Insect Physiology 28 (8): 689–94.

Ujvari, B, NR Casewell, K Sunagar, K Arbuckle, W Wüster, N Lo, D O’Meally, et al. 2015. “Widespread Convergence in Toxin Resistance by Predictable Molecular Evolution.” Proceedings of the National Academy of Sciences 112 (38): 11911–11916.

Wilson, NJ, AN Stokes, GR Hopkins, ED Brodie, Jr., and CR Williams. 2014. “Functional and Physiological Resistance of Crayfish to Amphibian Toxins: Tetrodotoxin Resistance in the White River Crayfish (Procambarus Acutus).” Canadian Journal of Zoology 92 (11): 939–45.

Voyles, J, DC Woodhams, V Saenz, AQ Byrne, R Perez, G Rios-sotelo, MJ Ryan, et al. 2018. “Shifts in Disease Dynamics in a Tropical Amphibian Assemblage Are Not due to Pathogen Attenuation.” Science 359: 1517–19.

Other Links/Mentions:

Epomis circumscriptus attacking and preying upon Bufo viridis – http://www.youtube.com/watch?v=wFJ_CXJ0qPo

Epomis circumscriptus attacking and preying upon Hyla savignyi – http://www.youtube.com/watch?v=RMkFb5n97cU

Trophic interactions between Epomis adults and Triturus vittatus –  http://www.youtube.com/watch?v=JA46dbEpluI

Videos from Wizen and Gasith 2011 PLoS One  – http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0025161

Photos from paper two: http://www.tau.ac.il/lifesci/departments/zoology/Amphibia/new.html

Rats vs toads: https://www.facebook.com/groups/ukargs/permalink/2092225931007478/


Intro/outro – Treehouse by Ed Nelson

Other Music – The Passion HiFi, www.thepassionhifi.com


This bi-week we decided to do things a little differently. No main theme, we just read random stuff and chatted about it. Featuring some exciting new developments in the crab vs snake continuum, and some methodological issues to keep an eye on. Huge thank you to our Patreons - if you enjoy the podcast please consider donating at www.patreon.com/herphighlights

FULL REFERENCE LIST AVAILABLE AT: herphighlights.podbean.com



Akçakaya, H. Resit, Elizabeth L. Bennett, Thomas M. Brooks, Molly K. Grace, Anna Heath, Simon Hedges, Craig Hilton-Taylor, et al. 2018. “Quantifying Species Recovery and Conservation Success to Develop an IUCN Green List of Species.” Conservation Biology, 1–15.

Alexander, G. J. Reproductive biology and maternal care of neonates in southern African python (Python natalensis). Journal of Zoology. IN PRESS

Dolia, Jignasu. 2018. “Notes on the Distribution and Natural History of the King Cobra (Ophiophagus Hannah Cantor, 1836) from the Kumaon Hills of Uttarakhand, India.” Herpetology Notes 11:217–22.

Fraser, Hannah, Timothy H. Parker, Shinichi Nakagawa, Ashley Barnett, and Fiona Fidler. 2018. “Questionable Research Practices in Ecology and Evolution.” Pre-Print. https://doi.org/10.17605/OSF.IO/AJYQG.

Garnett, S. T., & Christidis, L. (2017). Taxonomy anarchy hampers conservation. Nature News, 546(7656), 25.

Jayne, B. C., Voris, H. K., & Ng, P. K. (2018). How big is too big? Using crustacean-eating snakes (Homalopsidae) to test how anatomy and behaviour affect prey size and feeding performance. Biological Journal of the Linnean Society, 123(3), 636-650.

Loss, Scott R., and Peter P. Marra. 2018. “Merchants of Doubt in the Free-Ranging Cat Conflict.” Conservation Biology 32 (2):265–66.

Thomson, Scott A., Richard L. Pyle, Shane T. Ahyong, Miguel Alonso-Zarazaga, Joe Ammirati, Juan Francisco Araya, John S. Ascher, et al. 2018. “Taxonomy Based on Science Is Necessary for Global Conservation.” PLOS Biology 16 (3):e2005075.

Other Links/Mentions:

Video of Pareas carinatus eating a snail - https://www.youtube.com/watch?v=gcis86ZSwhE

Supplementary material from Alexander 2018 (including videos of baby pythons): https://zslpublications.onlinelibrary.wiley.com/doi/abs/10.1111/jzo.12554


Intro/outro – Treehouse by Ed Nelson

Other Music – The Passion HiFi, www.thepassionhifi.com