This fortnight we are delving into the peculiar world of caecilians. Fossorial amphibians that seldom show their faces on the surface. We chat about caecilians' strange adaptations and how a ten-year study has shed some light on their reproductive habits. The Species of the Bi-week is a suitably elongated and slimy critter. FULL REFERENCE LIST AVAILABLE AT: herphighlights.podbean.com
Main Paper References:
Jared, C., Mailho-Fontana, P. L., Jared, S. G. S., Kupfer, A., Delabie, J. H. C., Wilkinson, M., & Antoniazzi, M. M. (2018). Life history and reproduction of the neotropical caecilian Siphonops annulatus (Amphibia, Gymnophiona, Siphonopidae), with special emphasis on parental care. Acta Zoologica, (March), 1–11. https://doi.org/10.1111/azo.12254
Jared, C., Mailho-Fontana, P. L., Marques-Porto, R., Sciani, J. M., Pimenta, D. C., Brodie, E. D., & Antoniazzi, M. M. (2018). Skin gland concentrations adapted to different evolutionary pressures in the head and posterior regions of the caecilian Siphonops annulatus. Scientific Reports, 8(1), 1–7. https://doi.org/10.1038/s41598-018-22005-5
Species of the Bi-Week:
Maddock, S. T., Wilkinson, M., & Gower, D. J. (2018). A new species of small, long-snouted Hypogeophis Peters, 1880 (Amphibia: Gymnophiona: Indotyphlidae) from the highest elevations of the Seychelles island of Mahé. Zootaxa, 4450(3), 359–375. https://doi.org/10.11646/zootaxa.4450.3.3
Other Mentioned Papers/Studies:
Jared, C. et al. (2005). Head co-ossification, phragmosis and defense in the casque-headed tree frog Corythomantis greeningi. Journal of Zoology, 265.
Sawaya, P. (1940) Sobre o veneno das glândulas cutâneas, a secreção e o coração de Siphonops annulatus. Bot. Fac. Fill. Ci. Let. Univ. São Paulo. Ser. Zool. 4, 207–270
Wilkinson, M., Kupfer, A., Marques-Porto, R., Jeffkins, H., Antoniazzi, M. M., & Jared, C. (2008). One hundred million years of skin feeding? Extended parental care in a Neotropical caecilian (Amphibia: Gymnophiona). Biology Letters, 4(4), 358–361. https://doi.org/10.1098/rsbl.2008.0217
Wilson, N. J., Stokes, A. N., Hopkins, G. R., Brodie, Jr., E. D., & Williams, C. R. (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), 939–945. https://doi.org/10.1139/cjz-2014-0128
Other Links/Mentions:
BBC Life in Cold Blood - https://www.youtube.com/watch?v=UCF4qmxdkkM
Video of caecilian babies eating the skin of their mother: https://www.youtube.com/watch?v=6K6szXrBHwM
Music:
Intro/outro – Treehouse by Ed Nelson
Other Music – The Passion HiFi, www.thepassionhifi.com
087 Invasion Evasion
086 Illusionary Tortoises
085 Technicolour Dream Lizards
084 Beady Brains on the Move
083 Humans and Venom
082 Hey skink, why so blue?
081 Is that even a frog?
080 Genetics to the Rescue
079 Close Encounters of the Bird Kind
078 Colour in the Desert
077 Battle Frogs
076 Green Pit Viper Special
075 Trading Blows and Trading Reptiles
074 Actual Cannibal Salamanders
073 Lizards of the Night
072 Sidewinders Sighting Sites
071 Don’t count your Sand Boas before they hatch
070 Amphisbaenian Appetites
069 Freezing Frogs
068 Hoplocephalus with Scott Eipper
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