Yes - it's Frog Week!

And you might see the opinions of all sorts of people on what frogs are, but this one happens to be mine...

Enjoy your favorite frogs all week - I'll be in the field with Xenopus gilli... more on that anon.

Wildlife Society Blog on how our YouTube paper can help identify inavsive amphibians

Our paper using YouTube to identify why people like pet amphibians has been covered in a blog by Joshua Rapp of the Wildlife Society.

Some choice quotes by Joshua here include my musings on why people want to have frogs in their living rooms. Having kept some Xenopus wittei infront of my desk during my PhD days, I do understand why it's fun to have pet clawed frogs. But many of the animals sold spend most of their times burried in the bottom of the tank, and are hardly ever seen.

And some more media coverage here:

This one written by one of our Bot-Zoo alumni features a picture of me being busy in the office. Don't miss it!

Alex's paper is published in BJLinnSoc

Alex Reblo spent a very long time chasing frogs up and down a race-track up and down the country. In the end, he managed to get performance and morphometric data on 25 species and 215 individuals of pyxicephalid frogs. That's remarkable. Then he analysed all of his results in a phylogenetic framework (of his own making). Lastly, after finishing his thesis (for which he received a cum laude), Alex turned this chapter into a brilliant paper, published today.

The Pyxicephalidae is the most speciose family of frogs in southern Africa, making up more than half of all the species in South Africa. They are surprisingly diverse, inhabiting all of the country's biomes, from deserts to forests and swamps. They go from the smallest of our frogs (the aptly named micro frog) to the largest (the African bullfrog). They have also adapted into many forms, burrowing, swimming, tree living, not to mention a host of different reproductive traits. They really are a remarkable family.

Alex has his own YouTube channel where he's published some of the amazing things that he saw doing his MSc. In the clip below, you'll see the Klipheuwel Dainty Frog (Cacosternum aggestum) calling...

Alex specifically wanted to know whether there was evidence that these frogs had adapted to their environment. I won't spoil it for you, but encourage you to read his excellent paper:

Rebelo, A. & Measey, J. (in press) Locomotor performance constrained by morphology and habitat in a diverse clade of African frogs (Anura: Pyxicephalidae). Biological Journal of the Linnean Society http://dx.doi.org/10.1093/biolinnean/blz007 pdf

Why do people want pet amphibians?

We know that the trade in amphibians increases year on year, but what is driving the demand? This might be a no-brainer for many of you reading this blog. Why wouldn't anyone want to have a pet amphibian? In a first attempt to dig into this intriguing question, we reasoned that people who upload their videos to YouTube might be sharing what they consider to be the most important qualities of their pets. After all, why else would you upload a video of your pet amphibian?

We were about to find out!

So the truth is that people upload videos of their amphibians for all sorts of reasons. That was our conclusion after watching more than 1000 videos. Who would have thought that 'unboxing' would be such a popular category? We found videos of people driving toads in lego cars, tying them to helium baloons and watching them float away, as well as preparing a Chinese giant salamander for the pot. But we also saw plenty of much loved amphibians in people's homes, and we were able to look at the behaviour that was being filmed to give us some insights to answer our question

To read more about what we found, why not read our paper? It's free to read online.

Measey, J., Basson, A., Rebelo, A., Nunes, A., Vimercati, G., Louw, M., & Mohanty, N.P. (2019) Why have a pet amphibian? Insights from YouTube. Frontiers in Ecology And Evolution  7: 52 doi:10.3389/fevo.2019.00052

First Cape Herp Club of 2019

We kicked off late in 2019 on the last day of February, and very appropriately for Leap Frog Day we had two froggy talks from the MeaseyLab:

Natasha started off the talks with her (much practiced) talk on:

"The effects of range expansion on the survival and development of invasive Xenopus laevis tadpoles." Natasha Kruger (Stellenbosch University)

Then Carla told us about some of the work that she did for her thesis on toads in Brazil in the Caatinga, as well as some work she's currently doing on tegu lizards. 

"Relationship between seasonality, stress and immunity in anurans and lizards" Dr Carla Madelaire (Physiology Department, Univ. of São Paulo)

Both talks were well received.

It was a splendid venue at the Manor House next to the CapeNature Scientific Services centre in Jonkershoek. We got a rather special misty rain the came down as we all settled down to talks under the yellow-wood beams and the thatched roof.