Showing posts with label Earthworms. Show all posts
Showing posts with label Earthworms. Show all posts

Sunday, 21 April 2024

#294: Natural History Podcasts #9 - 'Counting the Earth'

The podcast series 'Counting the Earth' is a great series of podcasts.

It was trailed here...

& the first episodes are now up for you to listen to...

 

Sunday, 14 April 2024

#286: Invertebrates: Earthworms

Lumbricus terrestris, the common earthworm


Patrick Barkham explains the importance of earthworms to our food supply and soil health. 

Part of a feature in this weekend's Guardian newspaper. There's a range of stories every Saturday which always connect with the likely contents of the specification when it (eventually) appears.

Update

Earthworms won the vote for the best invertebrate...

Monday, 1 April 2024

#271: Tipping points

We are starting to see increasing evidence of what I always taught about when I first started teaching in the 1980s... tipping points being approached or reached where we change some aspect of a physical system into a new state which is irreversible.

This will have a dramatic impact on natural systems, and all life, as our food supply will also be impacted.

The one I always used to talk about was with respect to permafrost, which I used to teach about in the old Cambridge 'A' level, before all the hard physical stuff was taken out...

Visit the Global Tipping Points website to find out more about some of the tipping points.

And here's one on a recent full moon's name and why it may become irrelevant...


The soil is warming earlier... and worms are confused... 

Saturday, 23 December 2023

#202: Worms are important

Worms aren't important are they?

One might imagine so, but some of the early naturalists including Gilbert White and Charles Darwin understood the vital importance of them for soil health and other factors, including the incorporation of organic material into the soil, aeration and other benefits.

Earthworms are described by the Natural History Museum as heroes.

Check out details of the former NHM project called Earthworm Watch. This was a Citizen Science project.

Data collection is now closed, but the results can be viewed.

Hopefully one result of studying the GCSE Natural History will be cohorts of students who appreciate the small things a little more. This is not always about the bigger aspects of Natural History but the smaller elements that contribute to the whole.

My Geographical Association Presidential theme was Everyday Geographies, and this is another example of where small everyday actions can make a large cumulative difference. I'm thinking of developing some support around the idea of "everyday natural history".

Monday, 18 September 2023

#93: Worms in the Arctic

An interesting piece in the New York Times which shows the persistence of some life forms, and the importance of earthworms. 

Previously, permafrost would have precluded the existence of earthworms, which act to mix up soil materials and aerate it. The thawing permafrost is now being colonised by worms, and some of them have been rather long lasting in waiting for this moment...


More on earthworms elsewhere on the blog...

#643: The Path More Travelled

A cross posting from my Geo Library blog project - what do you mean you haven't visited? There's over 700 books that would be of in...