Herpetological Highlights

Crocodiles leave their mouths open for long periods of time, and we don’t really know why. We also take a long tangent on the swiftlet nest business and what wee reptiles are cashing in themselves. Become a Patreon: https://www.patreon.com/herphighlights Merch: https://www.redbubble.com/people/herphighlights/shop Full reference list available here: http://www.herphighlights.podbean.com Main Paper References: Price C, Ezat MA, Hanzen C, Downs CT. 2022. Never smile at a crocodile: Gaping behaviour in the Nile crocodile at Ndumo Game Reserve, South Africa. Behavioural Processes 203:104772. DOI: 10.1016/j.beproc.2022.104772. Other Mentioned Papers/Studies: Quah ESH, Chong JL. 2022. Reptile predators of swiftlets (genus Aerodramus) with a focus on their impact on the swiftlet farming industry. Herpetology Notes. Wüster, W., & Tillack, F. 2023. On the importance of types and the perils of “en passant” taxonomy: a brief history of the typification of Coluber naja Linnaeus, 1758 (Serpentes: Elapidae) and its imp

Tracking and understanding invasive species is difficult, but even more so when the invasive can interbreed with the endangered native species creating a more powerful hybrid. This episode we look at a hybridising salamander. We also have a very special Species of the Bi-week. Become a Patreon: https://www.patreon.com/herphighlights Merch: https://www.redbubble.com/people/herphighlights/shop Full reference list available here: http://www.herphighlights.podbean.com Main Paper References: Cooper RD, Shaffer HB. 2023. Managing invasive hybrids with pond hydroperiod manipulation in an endangered salamander system. Conservation Biology:cobi.14167. DOI: 10.1111/cobi.14167. Species of the Bi-Week: Major T, Renk P, Reissig J, Paijmans JLA, Morris E, Hofreiter M, Barlow A, Broadley DG, Wüster W. 2023. Museum DNA reveals a new, potentially extinct species of rinkhals (Serpentes: Elapidae: Hemachatus) from the Eastern Highlands of Zimbabwe. PLOS ONE 18:e0291432. DOI: 10.1371/journal.pone.0291432. Other Links/Mentions:

Chameleons have evolved a diversity of weaponry. New research determines what these weapons are, and which chameleon groups are the most heavily-armed. Become a Patreon: https://www.patreon.com/herphighlights Merch: https://www.redbubble.com/people/herphighlights/shop Full reference list available here: http://www.herphighlights.podbean.com Main Paper References: Van Kleeck-Hann M, Wiens JJ. 2023. Macroevolution of sexually selected weapons: weapon evolution in chameleons. Evolution:qpad138. DOI: 10.1093/evolut/qpad138. Other Mentioned Papers/Studies: Kang, C., Kim, Y. E., & Jang, Y. 2016. Colour and pattern change against visually heterogeneous backgrounds in the tree frog Hyla japonica. Scientific reports, 6(1), 22601. Editing and Music: Podcast edited by Emmy – https://www.fiverr.com/emmyk10  Intro/outro – Treehouse by Ed Nelson Species Bi-week theme – Michael Timothy Other Music – The Passion HiFi, https://www.thepassionhifi.com

They call them mamushi, or the Japanese pitviper. New research determines whether these snakes operate in chilly weather, or if their prey are safe to relax.  Become a Patreon: https://www.patreon.com/herphighlights Merch: https://www.redbubble.com/people/herphighlights/shop Full reference list available here: http://www.herphighlights.podbean.com Main Paper References: Kodama T, Mori A. 2023. How important is temperature for strike success of ectotherms? Thermal effects on predator–prey interactions of free‐ranging pit vipers (Gloydius blomhoffii). Ethology:eth.13400. DOI: 10.1111/eth.13400. Species of the Bi-Week: Lawson LP, Loader SP, Lyakurwa JV, Liedtke HC. 2023. Diversification of spiny-throated reed frogs (Anura: Hyperoliidae) with the description of a new, range-restricted species from the Ukaguru Mountains, Tanzania. PLOS ONE 18:e0277535. DOI: 10.1371/journal.pone.0277535. Other Mentioned Papers/Studies: Kimbrough L. 2023.No croak: New silent frog species described from Tanzania’s ‘sky island’ fores

Vocal plasticity is the topic for this episode. Can tokay geckos modify their call? Do young turtle vocalisations help them coordinate their movements? Become a Patreon: https://www.patreon.com/herphighlights Merch: https://www.redbubble.com/people/herphighlights/shop Full reference list available here: http://www.herphighlights.podbean.com Main Paper References: Brumm H, Zollinger SA. 2017. Vocal plasticity in a reptile. Proceedings of the Royal Society B: Biological Sciences 284:20170451. DOI: 10.1098/rspb.2017.0451. Lacroix C, Davy CM, Rollinson N. 2022. Hatchling vocalizations and beneficial social interactions in subterranean nests of a widespread reptile. Animal Behaviour 187:233–244. DOI: 10.1016/j.anbehav.2022.03.006. Other Mentioned Papers/Studies: Goutte S, Mason MJ, Antoniazzi MM, Jared C, Merle D, Cazes L, Toledo LF, el-Hafci H, Pallu S, Portier H, Schramm S, Gueriau P, Thoury M. 2019. Intense bone fluorescence reveals hidden patterns in pumpkin toadlets. Scientific Reports 9:5388. DOI: 10.1038/

Snake diets are difficult to study, but are deeply interesting. This episode we look at a paper that has gathered together records (paper and digital) to examine whether rat snakes and cobras compete for food. We also have a tiny hopping Species of the Bi-week. Become a Patreon: https://www.patreon.com/herphighlights Merch: https://www.redbubble.com/people/herphighlights/shop Full reference list available here: http://www.herphighlights.podbean.com Main Paper References: Weiss M, Kalki Y. 2023. Trophic Niche Partitioning between Sympatric Naja naja and Ptyas mucosa: Crowdsourced Data in Application to Community Ecology. Journal of Herpetology 57. DOI: 10.1670/22-013. Species of the Bi-Week: Mângia S, Santana DJ, De Oliveira Drummond L, Sabagh LT, Ugioni L, Costa PN, Wachlevski M. 2023. A new species of Brachycephalus (Anura: Brachycephali­dae) from Serra do Tabuleiro, Southern Brazil. Vertebrate Zoology 73:575–597. DOI: 10.3897/vz.73.e102098. Other Mentioned Papers/Studies: Essner RL, Pereira REE, Blackburn

Caecilians are well adapted to a life underground, but a serious threat lives under there with them. All over the world, they have evolved the same means to fight this subterranean threat. Become a Patreon: https://www.patreon.com/herphighlights Merch: https://www.redbubble.com/people/herphighlights/shop Full reference list available here: http://www.herphighlights.podbean.com Main Paper References: Mancuso M, Zaman S, Maddock ST, Kamei RG, Salazar-Valenzuela D, Wilkinson M, Roelants K, Fry BG. 2023. Resistance Is Not Futile: Widespread Convergent Evolution of Resistance to Alpha-Neurotoxic Snake Venoms in Caecilians (Amphibia: Gymnophiona). International Journal of Molecular Sciences 24:11353. DOI: 10.3390/ijms241411353. Other Links/Mentions: https://www.threatenedtaxa.org/index.php/JoTT/article/view/8336/9359  https://asianturtleprogram.org/healthy-big-headed-turtles-found-in-the-wild-four-years-after-release-into-the-wild-highlights-the-importance-of-conservation-activities/?fbclid=IwAR1lTt0zpuf8n5VardZeX

We chat about some new research on the social behaviour of rattlesnakes. Plus a brand new snake species just described from Australia. Become a Patreon: https://www.patreon.com/herphighlights Merch: https://www.redbubble.com/people/herphighlights/shop Full reference list available here: http://www.herphighlights.podbean.com Main Paper References: Martin CE, Fox GA, Putman BJ, Hayes WK. 2023. Social security: can rattlesnakes reduce acute stress through social buffering? Frontiers in Ethology 2:1181774. DOI: 10.3389/fetho.2023.1181774. Species of the Bi-Week: Nankivell JH, Maryan B, Bush BG, Hutchinson MN. 2023. Whip it into shape: Revision of the Demansia psammophis (Schlegel, 1837) complex (Squamata: Elapidae), with a description of a new species from central Australia. Zootaxa 5311:301–339. DOI: 10.11646/zootaxa.5311.3.1. Other Mentioned Papers/Studies: Tian, L., Preisser, E. L., Haynes, K. F., & Zhou, X. 2017. Social buffering in a eusocial invertebrate: termite soldiers reduce the lethal impact of co

Two toad species are wreaking havoc as invaders, but which is worse - and why? Become a Patreon: https://www.patreon.com/herphighlights Merch: https://www.redbubble.com/people/herphighlights/shop Full reference list available here: http://www.herphighlights.podbean.com Main Paper References: Kelly, C. L., Schwarzkopf, L., Christy, T. M., & Kennedy, M. S. (2023). The toad less travelled: Comparing life histories, ecological niches, and potential habitat of Asian black-spined toads and cane toads. Wildlife Research. doi: 10.1071/WR22111 Other Links/Mentions: Ingerophrynus parvus call by Zaharil Dzulkafly from: http://bitly.ws/LcAv  Editing and Music: Podcast edited by Emmy – https://www.fiverr.com/emmyk10  Intro/outro – Treehouse by Ed Nelson Species Bi-week theme – Michael Timothy Other Music – The Passion HiFi, https://www.thepassionhifi.com

Humans get in the way of snakes finding love over long distances, and then we talk about a cool new gecko that glides, or does it paraglide? Become a Patreon: https://www.patreon.com/herphighlights Merch: https://www.redbubble.com/people/herphighlights/shop Full reference list available here: http://www.herphighlights.podbean.com Main Paper References: Bauder, J. M., Peterman, W. E., Spear, S. F., Jenkins, C. L., Whiteley, A. R., & McGarigal, K. (2021). Multiscale assessment of functional connectivity: Landscape genetics of eastern indigo snakes in an anthropogenically fragmented landscape in central Florida. Molecular Ecology, 30(14), 3422–3438. doi: 10.1111/mec.15979 Species of the Bi-Week: Lalremsanga, H. T., Muansanga, L., Vabeiryureilai, M., & Mirza, Z. A. (2023). A new species of Parachute Gecko of the subgenus Ptychozoon (Sauria: Gekkonidae: Gekko) from the Indo-Burma region. Salamandra, 59(2). Editing and Music: Podcast edited by Emmy – https://www.fiverr.com/emmyk10  Intro/outro – Treehouse

When surviving in the wilds, maximising all your senses is wise. When you can’t see a threat, maybe you’ll hear one… or smell one? We look at a wonderfully smart gecko looking to dodge snakes using the power of smell. Become a Patreon: https://www.patreon.com/herphighlights Merch: https://www.redbubble.com/people/herphighlights/shop Full reference list available here: http://www.herphighlights.podbean.com Main Paper References: Hammond, J. E., Witkowski, S., Wilson, T., Zouvi, C. A., Goetz, N. L., Eck, N. F., & Clark, R. W. (2020). Know Thine Enemy: Predator Identity Influences the Response of Western Banded Geckos (Coleonyx variegatus) to Chemosensory Cues. Journal of Herpetology, 54(4). doi: 10.1670/19-131 Editing and Music: Podcast edited by Emmy – https://www.fiverr.com/emmyk10  Intro/outro – Treehouse by Ed Nelson Species Bi-week theme – Michael Timothy Other Music – The Passion HiFi, https://www.thepassionhifi.com

Animals make all sorts of noises for all sorts of reasons. Working out what they mean is difficult, especially if the animal is less than honest. This episode is all about the truthfulness of the screams of a little lacertid. Our Species of the Bi-week is a delicate frog. Become a Patreon: https://www.patreon.com/herphighlights Merch: https://www.redbubble.com/people/herphighlights/shop Full reference list available here: http://www.herphighlights.podbean.com Main Paper References: Baeckens, S., Llusia, D., García-Roa, R., & Martín, J. (2019). Lizard calls convey honest information on body size and bite performance: A role in predator deterrence? Behavioral Ecology and Sociobiology, 73(6), 87. doi: 10.1007/s00265-019-2695-7 Species of the Bi-Week: Köhler, J., Venegas, P. J., Castillo-Urbina, E., Glaw, F., Aguilar-Puntriano, C., & Vences, M. (2023). A third species of glassfrog in the genus Chimerella (Anura, Centrolenidae) from central Peru, discovered by an integrative taxonomic approach. Evolution

Colour morphs exist in many species, but are those colours linked to differences in behaviour or success? We look at a polymorphic lizard and whether combat success is linked to three different colour morphs, and maybe why. Become a Patreon: https://www.patreon.com/herphighlights Merch: https://www.redbubble.com/people/herphighlights/shop Full reference list available here: http://www.herphighlights.podbean.com Main Paper References: Brock KM, Chelini M-C, Ayton C, Madden IE, Ramos C, Blois JL, Pafilis P, Edwards DL. 2022. Colour morph predicts social behaviour and contest outcomes in a polymorphic lizard (Podarcis erhardii). Animal Behaviour 191:91–103. DOI: 10.1016/j.anbehav.2022.06.017. Other Mentioned Papers/Studies: Boruah B, Raj P, Dutta SK, Das A. 2018. Redescription and geographic distribution of Raorchestes shillongensis (Anura: Rhacophoridae) from Meghalaya, Northeast India. Phyllomedusa: Journal of Herpetology 17:3. DOI: 10.11606/issn.2316-9079.v17i1p3-20. Other Links/Mentions: Raorchestes shillo

This episode we explore the weird world of glowing salamanders and speculate about the possible reasons behind this adaptation. Species of the Bi-week returns with a small seepage specialist. Become a Patreon: https://www.patreon.com/herphighlights Merch: https://www.redbubble.com/people/herphighlights/shop Full reference list available here: http://www.herphighlights.podbean.com Main Paper References: Cox JL, Fitzpatrick BM. 2023. Biofluorescent sexual dimorphism revealed in a southern Appalachian endemic salamander, Plethodon metcalfi. Scientific Reports 13:3588. DOI: 10.1038/s41598-023-29051-8. Species of the Bi-Week: Fedler MT, Enge KM, Moler PE. 2023. Unraveling Siren (Caudata: Sirenidae) systematics and description of a small, seepage specialist. Zootaxa 5258:351–378. DOI: 10.11646/zootaxa.5258.4.1. Editing and Music: Podcast edited by Emmy – https://www.fiverr.com/emmyk10  Intro/outro – Treehouse by Ed Nelson Species Bi-week theme – Michael Timothy Other Music – The Passion HiFi, https://www.thepassi

Everyone thinks turtles are chill, but they aren't always. They can be competitive when they need to be.    Become a Patreon: https://www.patreon.com/herphighlights Merch: https://www.redbubble.com/people/herphighlights/shop Full reference list available here: http://www.herphighlights.podbean.com Main Paper References: Schofield G, Papafitsoros K, Chapman C, Shah A, Westover L, Dickson LCD, Katselidis KA. 2022. More aggressive sea turtles win fights over foraging resources independent of body size and years of presence. Animal Behaviour 190:209–219. DOI: 10.1016/j.anbehav.2022.05.006. Other Links/Mentions: Kuta S.Lizard Remains Found Inside 2,500-Year-Old Coffins from Ancient Egypt. Available at https://www.smithsonianmag.com/smart-news/lizard-remains-found-inside-2500-year-old-coffins-from-ancient-egypt-180982032/ (accessed April 25, 2023). Editing and Music: Podcast edited by Emmy – https://www.fiverr.com/emmyk10  Intro/outro – Treehouse by Ed Nelson Species Bi-week theme – Michael Timothy Other Music – T

New research on crocodiles sheds light on how these massive beasts interact with each other.  Become a Patreon: https://www.patreon.com/herphighlights Merch: https://www.redbubble.com/people/herphighlights/shop Full reference list available here: http://www.herphighlights.podbean.com Main Paper References: Barham KE, Baker CJ, Franklin CE, Campbell HA, Frére CH, Irwin TR, Dwyer RG. 2023. Conditional alternative movement tactics in male crocodiles. Behavioral Ecology and Sociobiology 77:31. DOI: 10.1007/s00265-023-03303-z. Species of the Bi-Week: Richards SJ, Donnellan SC, Oliver PM. 2023. Five new species of the pelodryadid genus Litoria Tschudi from the southern versant of Papua New Guinea’s Central Cordillera, with observations on the diversification of reproductive strategies in Melanesian treefrogs. Zootaxa 5263:151–190. DOI: 10.11646/zootaxa.5263.2.1. Editing and Music: Podcast edited by Emmy – https://www.fiverr.com/emmyk10  Intro/outro – Treehouse by Ed Nelson Species Bi-week theme – Michael Timothy

Bushmasters are massive vipers that remain somewhat of a mystery. This episode we look at a paper investigating their spatial ecology and habitat preferences. Become a Patreon: https://www.patreon.com/herphighlights Merch: https://www.redbubble.com/people/herphighlights/shop Full reference list available here: http://www.herphighlights.podbean.com Main Paper References: Padrón DF, Mebert K, Pareja-Mejía D, Bauer A, Fernandes Vasconcelos LD, Correia D, Fernandez Giné GA, Solé M. 2022. Living in a mosaic of Brazilian Atlantic Forest and plantations: spatial ecology of five bushmaster Lachesis muta (Viperidae Crotalinae). Ethology Ecology & Evolution:1–21. DOI: 10.1080/03949370.2022.2123860. Other Mentioned Papers/Studies: Guedes P, Alves-Martins F, Arribas JM, Chatterjee S, Santos AMC, Lewin A, Bako L, Webala PW, Correia RA, Rocha R, Ladle RJ. 2023. Eponyms have no place in 21st-century biological nomenclature. Nature Ecology & Evolution. DOI: 10.1038/s41559-023-02022-y. Quah ESH, Grismer LL, Anuar MS

Stress can come from many places, loud noises are one example. So how do lizards react when their home is constantly bombarded by loud noises? We also have a new gecko for Species of the Bi-week. Become a Patreon: https://www.patreon.com/herphighlights Merch: https://www.redbubble.com/people/herphighlights/shop Full reference list available here: http://www.herphighlights.podbean.com Main Paper References: Kepas ME, Sermersheim LO, Hudson SB, Lehmicke AJJ, French SS, Aubry LM. 2023. Behavior, stress and metabolism of a parthenogenic lizard in response to flyover noise. Frontiers in Amphibian and Reptile Science 1:1129253. DOI: 10.3389/famrs.2023.1129253. Species of the Bi-Week: Chan KO, Grismer LL, Santana F, Pinto P, Loke FW, Conaboy N. 2023. Scratching the surface: a new species of Bent-toed gecko (Squamata, Gekkonidae, Cyrtodactylus) from Timor-Leste of the darmandvillei group marks the potential for future discoveries. ZooKeys 1139:107–126. DOI: 10.3897/zookeys.1139.96508. Other Mentioned Papers/Studies

It's a commonly held belief that snakes can't hear, or can't hear very well, because they have no external ear openings. Some clever new research puts that myth to bed. Become a Patreon: https://www.patreon.com/herphighlights Merch: https://www.redbubble.com/people/herphighlights/shop Full reference list available here: http://www.herphighlights.podbean.com Main Paper References: Zdenek CN, Staples T, Hay C, Bourke LN, Candusso D. 2023. Sound garden: How snakes respond to airborne and groundborne sounds. PLOS ONE 18:e0281285. DOI: 10.1371/journal.pone.0281285. Other Links/Mentions: Zdenek et al video of snakes reacting to noise - https://www.youtube.com/watch?v=jnNzinwwItk  Editing and Music: Podcast edited by Emmy – https://www.fiverr.com/emmyk10  Intro/outro – Treehouse by Ed Nelson Species Bi-week theme – Michael Timothy Other Music – The Passion HiFi, https://www.thepassionhifi.com

Some animals can escape the attention of ants with special chemical cues. We discuss a nice example of this and follow up with a brand new frog species.  Become a Patreon: https://www.patreon.com/herphighlights Merch: https://www.redbubble.com/people/herphighlights/shop Full reference list available here: http://www.herphighlights.podbean.com Main Paper References: de Lima Barros A, López-Lozano JL, Lima AP. 2016. The frog Lithodytes lineatus (Anura: Leptodactylidae) uses chemical recognition to live in colonies of leaf-cutting ants of the genus Atta (Hymenoptera: Formicidae). Behavioral Ecology and Sociobiology 70:2195–2201. DOI: 10.1007/s00265-016-2223-y. Species of the Bi-Week: Griesbaum F, Jongsma GFM, Penner J, Kouamé NG, Doumbia J, Gonwouo NL, Hillers A, Glos J, Blackburn DC, Rödel M-O. 2023. The smallest of its kind: Description of a new cryptic Amnirana species (Amphibia, Anura, Ranidae) from West African rainforests. Zootaxa 5254:301–339. DOI: 10.11646/zootaxa.5254.3.1. Editing and Music: Podcast ed