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Field work with Nature Live

4 Posts tagged with the invertebrates tag
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With flights back to the UK this afternoon, there was time this morning for a final visit to the Universiti Malaysia Sabah (UMS) campus.  Dan, Kerry and I took the opportunity to have a closer look behind the scenes of the Institute for Tropical Biology and Conservation, part of UMS.

 

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The insect collections at the Institute, kept in row upon row of cupboards and drawers.

 

The Institute has an insect collection of more than 10 000 specimens, kept in sealed drawers and cabinets, in a room where the temperature and humidity is carefully monitored. They also have a wet collection (where specimens are preserved in alcohol) including fish, amphibians and snakes, and a botanical collection of more than 6000 specimens of plants and fungi. The majority of specimens kept at the Institute were collected from various locations in Sabah, and it is here that our specimens of invertebrates and lichens will have a permanent home in the future.

 

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Dan admires the collections at the Institute.

 

It has been a tiring but memorable six weeks for Pat, Holger, Dan, Kerry and Keiron in Borneo. They’ve visited, collected from and sampled three different areas in Sabah and have a lot of hard work and study still to come.  I asked each of them about their memories and experiences of the trip.

 

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Holger

 

I asked Holger if anything had surprised him during his time in Borneo…  ‘I had very low expectations for my area of special interest, which is aquatic lichens.  Lowland tropical areas tend to have very few of them.  But here there were quite a lot and even in the secondary forest, where there are properly managed fragments preserved along the rivers, the river lichens looked pretty good and there was an amazing species diversity.  There is quite a lot of damage in the forest but if habitats are managed properly there’s hope to save quite a significant number of this unique diversity.’

 

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Kerry 

 

Kerry told me about her highlight of the trip…  ‘At home I work with tropical butterflies and seeing them in the wild, flying around, has been the best part for me.’

 

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Keiron

 

I asked Keiron what had struck him most about the differences between Borneo and the UK…  ‘There are the obvious things like the different trees and mammals, like the monkeys, that we don’t get back home.  But what I’ve really enjoyed is the all the big invertebrates that we get in the forest, like the scorpions and the stick insects, the praying mantids and the beautiful fulgorids.  It’s been a real pleasure to see them.’

 

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Tony

 

Tony has been busy following and filming the scientists over the past two weeks.  Here’s what he had to say… ‘It’s been an amazing experience, seeing the rainforest and working in that environment.  It’s been tough, carrying equipment and filming in those conditions, but it was worth it.  The highlight for me has been seeing and filming the gibbon, gibbons don’t get enough attention!  I’ve also really enjoyed working with the scientists, they’re a great group of people and a pleasure to work with.’

 

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Pat

 

Pat has done a lot of fieldwork in the tropics over the years, I asked if anything had really struck her about this trip… ‘I’ve never been to Maliau before, so this forest has been amazing to me.  It’s a forest that you can really work and move in, despite it being so diverse and such a huge amount of species.  It really contrasted with the terrible SAFE site where there are all these spiny rattans and lots of vines and the slippery mud….I really thought I wasn’t going to survive!’

 

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Charlotte

 

For me, I have had an incredible and memorable couple of weeks.  I have learnt so much about tropical rainforests and the species that live there, and the enthusiasm and passion of the scientists I have had the privilege to work with has been contagious.  I would like to thank all the people at the Natural History Museum who have helped support me over the past few months and have made this blog and the various public and school events possible.  It’s been a real team effort and I couldn’t have done it without you! I will miss the rainforest, it’s smells and sounds, it’s towering trees and incredible wildlife, but I have lots of wonderful memories to last me a lifetime!

 

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Dan

 

One of the things Dan is most looking forward to on returning home is food!  We’ve had a lot of rice in Borneo and Dan can’t wait to dig into lasagne, bangers and mash, and cottage pie.  I asked him to sum up the past six weeks and what the future holds…

 

 

 

Dan has the final word.

 

Don’t forget, you can read more about Dan’s experiences in Borneo on his blog.  We’ll have a final Nature Live event with Dan in November, giving you the opportunity to ask him your questions and hear first hand about the highs and lows of his time in Borneo.

 

Thank you for following the blog and for all of your comments and questions – keep them coming!

 

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Yesterday, our collaborators at Universiti Malaysia Sabah (UMS) warned Dan that some of his specimens were leaking.  Not good news!

 

All of the lichen and invertebrate specimens (collected over the past 6 weeks of sampling in the forests of Borneo) are now at UMS, waiting to be sorted and packed and eventually loaned to the Natural History Museum (NHM) for further study and identification.

 

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But the invertebrate specimens cannot be transported or stored safely while they are leaking alcohol (which acts to preserve the specimens) so it was all hands on deck this morning at UMS.

 

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The container the specimens had been stored in was swimming in alcohol.

 

On arriving at the university we discovered it was one container in particular that was causing the trouble.  Inside were specimens that had been collected by other NHM scientists in Danum Valley, but instead of being stored in tubes they had been sealed in plastic bags…that were meant to be leak-proof.  But the bags had failed and now there was alcohol swilling around the container producing a particularly bad smell!  Left in this condition the specimens would soon rot.

 

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The painstaking task of carefully emptying the bags and putting the contents into tubes.

 

So, one by one, the bags were opened and the contents removed and resealed in plastic, screw-top tubes.  A valuable lesson in the importance of reliable storing methods, without which weeks of collecting and hard work can be for nothing.  On the upside, it did give us the opportunity to see some different and interesting specimens including various ‘horned’ beetles, large cicadas and a crab!  The latter presumably having been collected close to a fresh water river.

 

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An unexpected discovery amongst the collected specimens.

 

But it wasn’t just Dan, Kerry and Keiron (with the added help of Tony) who were kept busy with attending to specimens today.  Elsewhere in the university, Pat and Holger had discovered one of the main difficulties with storing specimens in the tropics – humidity.   The specimens of lichens had been left in closed, plastic bags, and consequently moisture had collected and was causing the lichens to become damp.  A dangerous situation that can lead to the growth of mould and the loss of entire collections of samples.  Needless to say, everyone was kept busy for most of the day.

 

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Packing specimens for transportation involves lots of cardboard boxes and bubble-wrap!

 

Finally, once re-sealed and re-labelled, the invertebrate specimens were carefully packed by a removal company, ready for transportation to the UK.  Not the most common of courier requests!

 

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Dan was particularly pleased when the last box was sealed!

 

Having rinsed the smell of alcohol and dung beetles off of our hands, we decided to spend what was left of the day exploring the city.  Kota Kinabalu is clearly a busy and bustling city and well set-up for tourists, with a multitude of restaurants to choose from and markets selling memorabilia and gifts. And it doesn’t all stop when the sun goes down…in fact it gets better!  By the waterfront is a massive, open-air night market, selling vast quantities of fresh fruit and vegetables and a wide array of fish.   At some stalls, you can choose the fish you want and they will cook it for you, there and then.  We had to give it a try!

 

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One of the many stalls cooking fresh fish and seafood. 

 

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I think Kerry managed to trump my tasty but tiny prawn!

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Following an early start watching Hornbills yesterday and a late night linking live (via satellite) to the Museum in London, everyone was looking forward to a lie-in this morning….but no-one had explained this to the local Bearded Pigs.  At about 5am there was a huge commotion with snorting and bellowing right outside our bunkhouse, goodness knows what about, but Kerry was the only person not to be woken by it!

 

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A regular visitor to the Studies Centre, the Bearded Pigs are aptly named.

 

Today is our final day in Maliau and everyone has been busy packing and preparing for the journey to Kota Kinabalu, the capital city of Sabah.  Not only do we need to worry about how everything will fit back in our suitcases/bags, the samples of invertebrates and lichens need to be carefully sorted and packed, to ensure they are not damaged on the long (inevitably bumpy) car journey tomorrow. 

 

 

Lichens that are going to be used by Holger and Pat, who will identify and describe them, need to be carefully prepared and packed.  I asked Pat how she goes about doing this…

 

The lichens will all be added to collections held at the Universiti Malaysia Sabah (UMS) and then those that require further study will be sent to the Natural History Museum (in London) for Pat and Holger to identify and where necessary describe new species to science.

 

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Kishneth’s bark samples cover the floor of the laboratory, ready to be packed and transported back to Kota Kinabalu.

 

Meanwhile, the sections of tree bark and further (cross-referenced) samples of lichens will be analysed by Charles and his team of chemists, including Kishneth, at UMS and their chemistry studied.

 

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Kishneth gets to grips with the intricate structure of some of the lichens the team have collected.

 

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Keiron empties the containers that have been collecting material at the bottom of the Winkler bags.

 

Elsewhere, Dan, Kerry and Keiron have been emptying the final Winkler bags and gathering their various samples together.  There’s a noticeable difference in the volume of material that the different traps have collected.

 

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A ‘line-up’ of samples – a pair of Malaise trap samples on the left, SLAM traps, pitfall traps, and finally a pair of leaf litter samples on the far right.

 

The Malaise traps have been particularly successful in sampling a large number of forest invertebrates, while the pitfall traps have caught some of the larger specimens.

 

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A Whip Scorpion found in one of the pitfall traps.

 

While walking towards the forest today for a final stroll beneath the mighty Dipterocarp trees, I couldn’t help but notice a small flowering plant on the side of the road.  Particularly memorable because of what happens when you touch it….

 

 

The leaves of Mimosa pudica quickly fold inwards or droop when touched.

 

Mimosa pudica, while intriguing, shouldn’t be here.  It is a species native to South and Central America, but is an invasive weed across much of the tropics.  It seems incredible that such a small plant could have made it all the way from South America to the depths of Sabah in Borneo, and yet it’s not an uncommon tale.

 

We’re looking forward to a change of scenery when we get to Kota Kinabalu tomorrow but for now, with the closest village 2 hours drive away, games of cards and charades are the mainstay of our evening’s entertainment.

 

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It’s a film…..four words….

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Last night we had thunder and lightning, almost directly overhead.  It rains most evenings/nights here but last night’s down pour was particularly heavy.  Most of us were consequently woken up in the small hours of this morning by the sound of frogs!  It sounds like there are hundreds of them surrounding our bunkhouse, although it’s too dark to go out and count, but their constant calling and croaking creates a deafening noise.  I will try and get a recording for you to listen to!

 

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Keiron with an earthworm he found in one of the soil samples.

 

Soil sampling is a simple but effective way of discovering some of the numerous species of invertebrate that are living in the rainforest.  Keiron showed me how he digs a hole at set points along the transect line (a line running 100 metres through the site/plot being studied) and then sifts through it looking for animals.

 

 

Keiron demonstrates how the team sample the soil in the rainforest.

 

Dan, Kerry and Keiron have found a variety of animals living in the soil.  The majority tend to be ants and termites, which dominate the soil habitat of tropical rainforests, but they’ve also found centipedes, beetle larvae and earthworms (amongst other things). 

 

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A large beetle larva found in one of the soil samples.  They have sharp jaws so it’s best not to handle them!

 

Any animals that are found in the soil samples are picked up (using tweezers) and popped into a tube of alcohol.  This kills and preserves them (stopping them from decomposing).  Some of the ants can move particularly fast, meaning you end up chasing them around the tray with the tweezers….I certainly need to practice more before I’m up to Kerry and Keiron’s standard of tweezer/ant control.

 

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Kerry, with tweezers and tube of alcohol at the ready, carefully studies her soil sample.

 

Pat, Holger and Kishneth were collecting lichens at the final site today.  I had heard that tree diversity in tropical rainforests was high, but I was still surprised when Pat counted up the number of species they have sampled from.  Of 84 trees they have sampled, there are 49 different species of tree.  And that’s still only a handful of what’s living in the forest here.

 

 

Pat explains more about the trees and lichens that she and the lichenologists have been studying.

 

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A good hand lens reveals the colourful and intricate world of lichens on a whole new scale.

 

Today has been a particularly memorable one because of the ‘monkey action’ we all witnessed this morning taking place in a massive Strangling Fig tree, close to the Studies Centre buildings. 

 

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The Strangling Fig tree, viewed from the veranda of the Rest House.

 

For the best chance of seeing birds and mammals in the rainforest, you want to find a tree that is in flower or fruit.  In the last couple of days the figs on this mighty tree have been ripening, and everything is taking advantage of this ready food source! 

 

Yesterday we saw lots of birds, including species of Hornbill, flying into the upper branches. This morning, we caught a quick glimpse of a Bornean Gibbon before it swung swiftly away….which was probably due to the arrival of a troop of Pig-Tailed Macaques.  The Macaques managed to get right up into the highest branches, maybe 40 – 50 metres above the ground, and Tony filmed them as they skilfully moved through the branches and seemingly catapulted down the tree!

 

 

Despite being so perilously high above the ground, the Macaques are clearly far better adapted to life in the trees than we are!

 

Needless to say, as sat having dinner this evening (on the veranda outside because it never gets cold here), we all had smiles on our faces following another magical day in the jungle.

 

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Meals of rice, meat and vegetables are supplemented by the odd box of biscuits!