Are you doing a degree in biology, zoology, marine biology, ecology & conservation or something similar? Then Biodiversity Challenge might be for you.
Imagine two students, one has a first class degree in ecology and conservation, the other has the same but leaves university with the ability to identify 2,851 species. Which one is likely more employable in a conservation ecology role? Biodiversity Challenge is about setting yourself an achievable target (say something like 1,000, 2,000 or even 3,000 species beyond where you are starting from - you set your target) and using the Pan-species Listing approach to British natural history to reach that target by the end of your time at your university. It's that simple.
You should aim to do it at a rate where you can assimilate the knowledge as you go, if you rush through it using AI on most things, you're only going to cheat yourself and is missing the point. The idea is to use the PSL website and all that free time during your degree to build a sound knowledge base of British natural history that you can then put on your CV. I wish I had been able to do pan-species listing at university. We live in a golden age of natural history, it's never been easier to identify things than it is now due to all of the amazing field guides and keys being published, along with all the online resources and Facebook groups that connect us all together.
Here's how to get involved:
1). Sign up to the free Pan-species Listing website here www.panspecieslisting.com. Set up your life list using the PSL location of: "Britain, Ireland, Isle of Man and Channel Islands (PSL)", you won't be able to take part in Biodiversity Challenge if you don't set this as the location for your life list.
2). Tick off any species you have already seen or start from scratch. Biodiversity Challenge isn't about things you only see on your campus or during your time at university, your PSL life list is a long term effort to find and record as much wildlife in the British Isles as you can over the course of your life. We are not a recording platform though, generally in Great Britain we encourage you to use iRecord for submitting records of everything you tick off on PSL but other recording platforms might be more relevant in your country/county/region.
3). Add your list to your university by clicking on 'view lists' on the drop down menu, then select 'view communities'. You can filter the list of communities by 'higher education'. What you are looking at here are the rankings of the collective totals for each university.
Either join the relevant community/university or if it's not there, create it yourself (please remember to assign all universities to the community type of 'higher education'). Stick to the official title of your university so that others can find it easily. Anyone can join any community. 4). Click on your university to see the full species list, then click on the 'view base list rankings' icon.
This will take you to the rankings within your university, Bangor University rankings looked like this at the time of writing.
5). Degree, masters, PhD, post doc and university staff all count (we encourage lecturers to get involved too) but the idea of these rankings is that when you finish university, you should leave the community. That way, the next wave of students have the opportunity to reach the number one spot (albeit only temporarily).
6). Get out there and get pan-species listing, you never know where it might take you by the end of your degree. You could even set up a PSL group at your university. Have a look if there is a PSL group active within your region/county too, we are a sociable lot and always happy to help the next generation of naturalists. It's fun, worthwhile and a great source of dopamine! Although you leave the community at the end of your course, ideally you'll maintain your pan-species list throughout your whole life. After 16 years of PSL, I have just recorded my 10,000th species!
Louis Tapster of Unorthodox Sketch created the artwork for this, which I absolutely love (the collective totals shown are entirely random and are meant as an example only). We record across 38 different taxonomic groups in Pan-species Listing (not just the eight examples shown here). There's lots more information about what PSL is all about on the website here. For a deeper dive, you could also read my book, which you can buy straight from Pelagic here (you can get a 25% discount after you have signed up to the website).
Finally, please do remember this is about building a sound knowledge base and not just about ticking things off a list. Go at a rate that you are comfortable with, record everything as you go, teach your fellow students (and they'll help you in turn) and only use AI when you've exhausted all other options - picture matching and keying out are vital skills to learn to become a good naturalist and help you retain that hard won identification knowledge. There are some brilliant Gen Z naturalists already coming out of university with thousands of species under their belts, the approach really does work.
16:04 - Harry Witts: "I don't think I would ever recognise a grasshopper new to Britain".
16:07 - Harry Witts: "GRAEME! Bring a big net! I think I have a new grasshopper!"
So yeah, here's Sphingonotus caerulans Slender Blue-winged Grasshopper - photographed by Joss Carr. It's very likely the first record of this species to naturally arrive on our shores. So how on Earth did I find myself in such a position not a month after the Verge Cricket madness?
Well, this story isn't about me, it's about the fantastic contingent of Gen Z naturalists who are making big waves in the British natural history world - many of whom are doing so using the pan-species listing approach to natural history. Two such naturalists are Harry Witts and Joss Carr. In the last couple of years, Harry has come out and shadowed me on a few different surveys in Kent and Sussex and this summer Joss has set up some fantastic PSL field meetings in London, many of which I have attended and enjoyed - they are both smashing it! PSLers are (in most parts) a sociable bunch. As I have said for years, it's not really competitive, it's collaborative and we all learn from each other. Pushing each other up not down. PSL is all about breaking down barriers and shoving gatekeeping into the history books. I always had this belief that if I had started PSLing in my teens, it would have fast-tracked me into being a more knowledgeable naturalist at an earlier age. It genuinely does just that, and now there is a growing number of super-capable young naturalists out there, many of which I hope will end up working in the conservation sector and many who already are.
After coming out with me for the day at Blean in April, Harry offered to return the favour by spending a weekend in Essex in August. Harry also invited Joss Carr, as not two weeks earlier they had had a brilliant day out at our destination - Colne Point, even finding Geocoris megacephalus new to Britain there (I had this bug new to Jersey in 2024). This is a coastal SSSI managed by Essex Wildlife Trust.
Colne Point is a sensitive site, with Harry arranging access to survey it through his work. It's pretty dangerous too, you can easily get cut off an a really high tide if you are not careful.
Of course, I wanted some lifers (I was hoping for Ground Lackey in the evening) but was also keen to get some year ticks for the 6000 Species Challenge. Dittander, Golden-samphire, Hog's Fennel and Shrubby Sea-blite were all year-ticked from the car! The first invert of the day was Clouded Yellow. Literally anything could happen...and it did.
First lifer of the day was the tiny picture wing Myopites eximia. This fly galls Golden-samphire.
And in the same first sweep, the first of many of the saltmarsh form of Rhysodromus histrio. This weirdly yellow form is incredibly different to the heathland one, I am amazed it's not a different species. Much less contrasting but clearly the same shape.
The first vac had this metallic purple beauty in it! The sea-lavender feeding Pseudaplimonus limonii. I rarely see this weevil as we have so little saltmarsh in Sussex. So little in fact, that I was getting year tick after year tick.
I got another lifer in the form of the long overdue Dun Sentinel Assiminea grayana! It seems to be really common on saltmarsh on the Thames Gateway and Essex coasts, despite being Nationally Scarce. Pleasingly proportioned.
Joss was on fine form with hoppers as per usual and has found some really significant county firsts there. As we headed to the shingle, I spotted a very large bee fly, which we think has to be Dune Villa Villa modesta. Here's one of Harry's record shots before we missed it with our nets. That's another long overdue lifer for me.
By the time we hit the shingle, Geocoris megacephalus was pretty much the commonest insect! Around this time Harry pulled two immature Heliophanus from his pocket he'd found on a previous visit. The abdomens were covered in golden and copper-coloured hairs but with no white spots. Harry thought they were likely Heliophanus auratus and I was inclined to agree. We knelt down and almost immediately Harry spotted an adult male Heliophanus running around on the shingle. I got hold of it and was happy to confirm this as an adult male Heliophanus auratus! My 565th spider in the British Isles. Here's the adult male, the legs are tri-coloured, while the abdomen is covered in dense shiny hairs that gives it a very distinct appearance. I went on to sieve another from Marram nearby but we didn't get any in the sucker.
Here's those two incredible immatures.
I also recorded Zelotes longipes - my first away from Jersey!
It's now 16:04 and things are about to get interesting.
I leg it over to where Harry is just 10 m away and he soon gets me on to an unusual orthopteran. There is talk of blue wings but the animal I am looking at looks nothing like the Blue-winged Grasshoppers Oedipoda caeruelscens I know well from Jersey. Smaller, slimmer, less contrasty, differently-coloured and with seemingly proportionally longer wings. I have a good side view with my close focus bins and the thing that struck me was the constricted neck and raised head. I think I exclaimed "It looks like a locust!".
Here's Harry's shots taken at a safe distance. This really captures the moment for me.
Quite hard to spot, isn't it? Until it flies!
I heavily cropped Harry's shot here to show the view I had through my bins, showing that oddly-positioned head.
I attempted to get it in the net but it crawled out from under it and flew. Long-winged but with very pale blue (almost white) hindwings. Again, quite unlike Blue-winged Grasshopper. It also flew quite some distance for a grasshopper, but we sprinted after it relocating it almost instantly among the shingle. I wish someone could have filmed it, it felt like comedy gold as we 'moved as one' as Harry described it. I soon had my hands on it and transferred it to the dirtiest pot in the entomological world - at least we were not going to lose it now and could get some record shots of that hind wing indoors.
I was utterly convinced this was some other species of grasshopper with blue wings. Joss had found a candidate on his phone, read out the differences and tracked down a 2024 record on the Eurostar tracks at Folkstone on iNaturalist before I had even unlocked my phone (how do Gen Z work their phones so quickly?). Anyways, I was pretty sure we had nailed the ID with Sphingonotus careulans. I called Peter Sutton up straight away. As if all the Verge Cricket/Praying Mantis/Blue-winged Grasshopper madness wasn't enough!
The next day, Joss got a shot of the hind wing and the lovely shot at the top of this post. Soon after Peter Sutton confirmed our ID was correct.
And here's me, Joss and Harry enjoying the sunset as we wait to do a bit of dusking.
I spotted this Ray's Knotgrass on the beach.
Harry found Armadillidium album under some logs. He was on fire!
Dusking wasn't the greatest but we did see lots of Sandhill Rustics, which I have not seen since before Joss was born.
And then we called in on the way back to look for Agonopterix putridella - which Harry spotted! A super-rare micro that only feeds on Hog's Fennel! What a day. Utterly unforgettable.
Time for Bob Dylan to provide the sound track for my pensive conclusion...
Our invertebrate fauna becomes more continental by the day, mostly down to man-made climate change, with species colonising our shores almost as fast we can write them down. Furthermore, that rate of change is increasing, it's as if we are heading towards an 'entomological singularity' if you will. This leads me to a state of cognitive dissonance, where I feel both joy and terror simultaneously at seeing these novel species. I want both more of them AND less of them. It's vital that we record them though. So lots of keen eyes on the ground is essential in all of this.
However, the great news is, I think that the young PSLers are doing a great job at carrying the torch of natural history, biological recording and wildlife conservation into the uncertain future that awaits us all. They're not just brilliant naturalists for their age - they're brilliant naturalists period! I don't just go out with them to show them stuff, I go out with them as I know they'll get me a load of lifers too! I absolutely love being shown things by people decades younger than me. It's great fun seeing PSL thriving in this way.
If you want to get into PSL, it's totally free and you can sign up here www.panspecieslisting.com
On Thursday morning (6th August), I hit 10,000 species seen in the British Isles. I first pulled my list together on the 1st August 2010, so you could say it's took me 16 years to get to this point. Yet I started recording when I was 10, so you could also say it actually took 38 years. Or 48 years. Whatever the time scale, I feel privileged to be one of only three people to every get to the 10,000 mark. Looking at the rankings though, this is really going to change over the coming years. I predict some of the younger more active listers could hit 10,000 before they reach 30.
My 10,000th species was very nearly a bug new to Britain but it needs more work to confirm it, or it might not be possible to get to species. I didn't want to go and find something, I just wanted it to happen organically - I really love the randomness of PSL. That side of it really appeals to my ADHD brain. I was working at Blean Wednesday to Friday last week and again stayed at Sandwich Bird Observatory. I didn't get anything new at Blean that day and I ran a trap at the Obs. So my 10,000th species was...
Ancylosis oblitella. A rather dull pyralid. It must be common there as there were 10 in the trap! In fact, I actually quite like that it wasn't that scarce and wasn't that exciting. Because that is what most species are like. Something amazing would have been too easy, and to be fair PSL is all about trying to master all the species within each group over your life, and most species are not rare or scarce.
Which is how minutes later I hit my 10,001 species with one of my longest standing bogies! Dark Spinach. How has it took me 35 years to see this moth?
The next day at Blean, I picked up my 10,002nd species. This gorgeous cranefly. What a beauty! I believe this is Metalimnobia bifasciata. Yet another fairly widespread species.
In the evening, I went out with Jonny Bull the Assistant Warden at the Obs to set some moth traps up. I couldn't believe it when I saw my 10,003rd species - Sharp Rush! I had no idea how different this thing is compared to Sea Rush (on the right). What a rush dude! It's 6 foot high and could easily have your eye out, the spines are brutal and the inflorescences are massive.
Here it is the next morning. It's like someone magically froze a firework! I actually hear firework noises in my head when I look at these tussocks.I got a couple more new moths in the traps the next morning but failed to take any photos. So I am now on 10,005 species! The moth traps were epically good but I will do a separate post about that as part of the 6000 Species Challenge.
The rate at which I see new species is easy to forecast over long time scales, in fact as far back as last year I expected it to happen this August! Now, is 20,000 species possible in a lifetime? I will give it a go...
A massive thanks Jonny Bull and the team at the Obs but also a huge thanks to Will Langdon, Alex Press and Joss Carr for getting me loads of lifers on an epic trip to Epping Forest last weekend. It was all the more exciting as I wasn't expecting to go!
If you fancy giving pan-species listing a go, you can sign up free to the website here www.panspecieslisting.com, It might just change your life!
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