23- How Many Species?
Biopedia14 Maalis 2021

23- How Many Species?

This episode is really going to do what it says on the tin- discuss the question of how many species there are in the world. This might seem a simple question, but a simple answer has eluded the scientific community for some years now. On the show today, I'm going to go through some of the methods past research has used to answer this question and what figures they came up with.


Sources for this episode:

  • Latty, T. and Lee, T., 'Phys.org' (2019), How many species on Earth? A simple question that's hard to answer (online) [Accessed 16/01/2021].
  • Mora, C., Tittensor, D. P., Adl, S., Simpson, A. G. B. and Worm, B. (2012), How Many Species Are There on Earth and in the Ocean? PLOS Biology 9(8): e1001127.

NOTE- at one point I mention seven taxonomic levels, but I should have said six.

Tämä jakso on lisätty Podme-palveluun avoimen RSS-syötteen kautta eikä se ole Podmen omaa tuotantoa. Siksi jakso saattaa sisältää mainontaa.

Jaksot(151)

128- Can Dolphins Detect Pregnancy?

128- Can Dolphins Detect Pregnancy?

Following another request, today we examine whether it is possible for dolphins- using their ultrasonic communication- to detect human pregnancy. The answer might be more ambiguous than you think...So...

2 Elo 4min

Announcement- I've written a book!

Announcement- I've written a book!

Vince here- I've written a historical fiction book set in Constantinople in 1081! Well, kind of. The first draft of the manuscript is complete at about 59,000 words across 34 chapters. I am planning t...

31 Heinä 5min

127- Life Expectancy of Hobbits

127- Life Expectancy of Hobbits

A bit of a silly topic today. What is the average life expectancy of hobbits in J. R. R. Tolkien's legendarium? Along the way, we will learn something about current and historic human life expectancy....

19 Heinä 3min

126- Moles

126- Moles

As requested by listener GT, we are going to talk all about moles today! Join us for the evolutionary history of the Talpidae family, English prophecies about moles, how much a mole head is worth in 2...

5 Heinä 10min

125- Pollinator Decline Debate Part II: A Dissenting Voice

125- Pollinator Decline Debate Part II: A Dissenting Voice

Last week we introduced some discussion on bee/pollinator declines. This week, we will discuss a perspective by Jaboury Ghazoul- a professor at ETH Zurich- who argued in a 2005 paper that labelling a ...

10 Touko 3min

124- Pollinator Decline Debate Part I: Non-Bee Pollinators

124- Pollinator Decline Debate Part I: Non-Bee Pollinators

Once again adapting a blog post into an episode, we are going to be examining a paper from 2016 which gives a potential new perspective on bee/pollinator declines. It argues that the contribution of n...

26 Huhti 2min

123- Calculating Inbreeding Coefficient

123- Calculating Inbreeding Coefficient

There is a number we use in genetics to represent how inbred a particular individual- e.g.: Charles II of Spain, Ptolemy XIII or Danaerys Targaryen- is. On today's episode, thanks to guidance from a b...

12 Huhti 8min

122- How to Build a Phylogenetic Tree

122- How to Build a Phylogenetic Tree

The term phylogenetic tree often gets bandied about, but how exactly do you construct one? Using three exemplar snake species and the differences in amino acid sequences in a common protein, let's bui...

29 Maalis 4min

Suosittua kategoriassa Tiede

tiedekulma-podcast
rss-poliisin-mieli
rss-mita-tulisi-tietaa
rss-hereilla
rss-bios-podcast
filocast-filosofian-perusteet
hippokrateen-vastaanotolla
rss-sosiopodi
rss-duodecim-lehti
rss-murremyytin-murtajat
utelias-mieli
rss-astetta-parempi-elama-podcast
rss-totuuden-liepeilla
rss-metsanomistaja-podcast
rss-lapsuuden-rakentajat-podcast