: Natural History

Spices and herbs from South Asia

Hasminder Kaur Aulakh, 21 February 2023

Recently, curators from the Botany section have been working on an AHRC-funded project, Rights and Rites. The project aims to co-create new interpretations for South Asian specimens, drawing on people’s lived-experiences and cultural understanding of the specimens’ country of origin; to engage community groups of Asian heritage with relevant biocultural specimens; and to encourage dialogue and knowledge-exchange about the South Asian flora.

We have developed new partnerships with several members of the local Asian community through a series of interactive workshops.  These events provided a wonderful opportunity to share knowledge about the use of plant products in cooking and medicine, in traditional Asian cultures.  Here guest blogger, Hasminder Kaur Aulakh, shares her experience of using fennel, fenugreek and green cardamon at home.

 

Spices and herbs are staples of kitchens all over the world and their smell can invoke memories of home, family, events, and happy memories. These seeds, leaves, stems, and husks have a place in the heart, reminding us of our ancestors, homelands, and roots, and in the body by helping us cure and ease ailments. 

 

Saumph (Fennel)

Take the humble fennel, or Saumph as my Punjabi family refer to it, which can be found in South Asian households as dried seeds or in powdered form. Saumph is a key ingredient of the palate cleansing mix of seeds offered by many Indian restaurants to freshen one’s breath, and this mix is often kept in Indian homes for the residents and guests after meals. However, this seed also assists with digestion due to the high fibre content, which can come in handy after a large meal, and is said to calm the intestinal lining. Babies with colic are often fed saumph seeds in water. Chewing saumph is also linked to stabilising blood pressure and regulating heart rate.

 

The digestive benefits of saumph can be complemented with mooli, white radish in English, and saumph is a necessary ingredient in the making of mooli wala paronthe. Saumph is also a key ingredient in cha, Indian masala tea, and in Ayurveda steeping saumph is the most effective way of consuming the herb. 

 

Methi (Fenugreek)

Methi, known as fenugreek in English, is another staple of Indian households. This herb is useful as fresh and leaves and as seeds. Fresh methi leaves is to Indian cooking what fresh basil is to Italian cooking, and the widely popular Punjabi dish of butter chicken wouldn’t taste the same without a sprinkling of methi on top. As well as improving the taste of food methi contains saponins which can help reduce the absorption of cholesterol, improving the eater’s health. Methi is also a popular preservative for pickles. 

 

Methi has a place in home remedies as well, such as being made into a tea along with honey and lemon to help break fevers. Skin issues are also said to be helped by treating them with methi paste, such as eczema, burns and abscesses. Methi paste can also be used to treat an itchy scalp and dandruff and is used in cosmetic soaps for this purpose. Some believe methi to have antacid properties, and when ingested can reduce heartburn.

 

Elaichi (Green Cardamom)

Despite being considered a truly divisive herb, with some not being able to stand the taste and others who can happily eat a whole pod raw, elaichi nonetheless has a steadfast place in South Asian kitchen. From its use in savoury dishes such as biryani and bread to sweet treats like cha and sweets elaichi’s importance in South Asian cooking and baking cannot be denied. Elaichi’s form in a kitchen, much like its uses, are versatile and can be found in pod, seed, and/or powder form, and can be green or black. Green elaichi is the more commonly used in South Asia, but elaichi is used all over the world in its various forms.

 

 

Elaichi is thought to have antimicrobial properties, and has therefore been used herbal treatments against harmful bacteria. Much like the earlier discussed saumph, elaichi’s antimicrobial properties make it a top choice for use as a mouth freshener and it is thought that chewing on the pods can aid in the fight against oral bacteria that can cause problems such as infections and cavities in teeth. It is also thought to be a powerful anti-inflammatory, and consumption of the herb is said to aid with digestion and help avoid problems such as acid reflux and stomach cramping. The anti-inflammatory properties also lend itself to being helpful with relieving sore throats when steeped in hot water or tea.

 

And there we have it, the versatility of herbs and spices in South Asia. Whilst these do not replace strong antibiotics, vaccines, or painkillers, they can certainly help with minor conditions. The great smelling and tasting herbs and spices that create South Asian cuisine have such an important role to play in keeping our stomach’s full and bodies healthy, and these uses have been passed down through generations.

Digitising botanical specimens from South Asia for the Rights and Rites project

Nathan Kitto and Heather Pardoe, 21 February 2023

Over the last 7 months curators have been working on an Arts and Humanities Research Council (AHRC) funded project, Rights and Rites. The project aims to work with members of the local community to reinterpret Botany specimens from South Asia, primarily in the Economic Botany Collection, to provide cultural context, to understand traditional methods of using the plant products and to improve access to the collections.

The Economic Botany Collection, comprising approximately 5500 specimens, contains a variety of different plant products, such as leaves, roots, fibres and seeds, all with significant economic, cultural or medicinal value. In addition, the project has drawn on collections of herbarium specimens, botanical illustrations, lower plant specimens and materia medica.

A key approach to making the collections more accessible is to digitise the specimens, producing images that can be shared with museum staff, researchers and communities outside of the museum.   Several techniques have been used to digitise the specimens, depending on the size and form of the specimens.

Working with different equipment and technology, Research Assistant Nathan Kitto has built up a collection of over a thousand images that include vascular herbarium sheets, specimens in jars and boxes and beautiful hand drawn illustrations. These images will be stored on the museum’s Natural Sciences online image library, along with specimen data, which can then be used as a research and reference tool. In future the images will be made more widely available through Collections Online

Initially 2D images were created using a high quality digital SLR camera.  This is a vital step to record unique details of the specimen, including accession number, common name and scientific species name and origin.  A colour chart is normally included in the image to ensure consistency in colour, size and scale. Micrograph equipment also has been used to take extreme close ups of specimens. By magnifying the specimen, it is possible to distinguish fine details which cannot normally be seen, giving a completely different dimension. 

New high-tech 3D scanning equipment has been purchased recently, supported by a grant from AHRC. Very detailed 3D scans have been produced of selected specimens that were suitable in terms of size and shape. The equipment allows us to capture a full 3D image of a specimen and permits end-users to rotate the specimen so that it can be viewed from any angle, providing quite a different perspective compared to a two-dimensional image. 

The scanners work by taking multiple frames or images of the object from different angles to build up a real 3D image. One type of scanner, the Artec Micro, has a more automated process; with the equipment doing most of the work, by rotating and choosing specific angles from which to take high quality images. In contrast, the Artec Space Spider is a handheld scanner, controlled by the operator, that takes a higher number of images while the object is rotating. It was very easy to use and was very accurate as well. After acquiring enough images from different orientations, the images are then merged using specialised Artec Studio software. With a few tweaks and repositioning, a 3D model is created and uploaded to Sketchfab. This is the online studio where the 3D image of the specimen can be optimised with lighting and positional edits. The Economic Botany 3D image library, which can be found here, displays 21 models of specimens, supplemented by information on traditional medicinal and cultural uses of individual species.

There are many benefits of creating 3D models of museum specimens; they make the collection accessible to anyone, and suitable for online searches. Preservation of the object is facilitated, since it allows the user to get a close look at delicate objects without the danger of causing damage. A digital asset will not deteriorate with time and can be copied and stored in multiple places and it also can be used to create 3D printed models. Furthermore, a digital 3D object allows for a different interaction with an object. 

The 3D models have been used to make museum specimens accessible to members of the public during community workshops.  This form of engagement generated very positive feedback and provided a good starting point for discussions about museum collections and the many uses of the specimens. The creation of these 3D models is just the starting point.  The curators on the Rights and Rites project look forward to seeing how people will continue to interact with the models in the future and hope it can be a useful and engaging resource for the public and museum to share.  If you have any comments about the objects shown in this blog, then please contact: Heather.Pardoe@museumwales.ac.uk.

 

 

Where Have All Our Seabirds Gone?

Jennifer Gallichan, 23 January 2023

Regular visitors to the Natural History galleries at National Museum Cardiff will be familiar with our fantastic dioramas, particularly the one recreating a Pembrokeshire sea cliff complete with nesting sea birds, rock pools and life-size basking shark. Recent visitors will have noticed however a distinct lack of sea birds as we have had an outbreak of clothes moths which has threatened to eat all the taxidermy specimens! All the specimens have had to be removed for treatment and some will unfortunately not be returning as the damage is too severe.

A sad fact is that this disappearance is mirroring what is happening in the outside world. Birds are suffering a pandemic of their own, the worst outbreak of avian flu ever known in the northern hemisphere. A new strain of bird flu has been attacking bird populations since the autumn of 2021, spreading from intensively farmed poultry in China. By late spring of 2022 there were increasing reports of the disease in seabird colonies in the north of the UK, and this has now spread across the whole of the country.

Avian flu is a virus that affects a range of birds but as with other viruses there are many different strains, most of which cause few or moderate symptoms. The difference is that this current strain, HPAI H5N1, is transmitted easily and causes symptoms that can be fatal to birds.

The effect on wild bird populations has been devastating, particularly on sea birds who live in large dense colonies along cliffs and islands where the virus is easily transmitted. It is estimated that tens of thousands of birds have died - you may well have seen some of the footage of dead or dying birds or even seen dead birds along our coasts.

In the UK we are privileged to host internationally important breeding populations of seabirds, a whopping 25% of Europe’s breeding seabirds. Worst affected species are the Great Skua and Northern Gannet populations. Up to 11% (over 2,200 birds) of the UK population of Great Skuas have been lost and scientists have recorded such high numbers of Gannet deaths that they think some populations are near collapse. 

The situation is continuing to be monitored, particularly with waterfowl, like geese, who overwinter in the UK. The hope is that populations will eventually develop an immunity to the disease, and there have been some encouraging signs in some birds, like Puffins, who seem to have had a good breeding year in 2022.

We hope to see the return of our seabirds both in the galleries and along our coasts soon!

You can find more information and recent updates on the situation in Wales here: Avian influenza (bird flu): latest update | GOV.WALES. You can also read a more detailed blog about it on The Wildlife Trust blog pages: Avian flu – the latest symptom of our ailing ecosystems | The Wildlife Trusts.

If you want to help, there are several organizations appealing for support to help monitor the situation and help seabirds recover: The British Trust for Ornithology (BTO): BTO Avian Influenza Appeal | BTO - British Trust for Ornithology and RSPB: Bird Flu Emergency Appeal Donation Form | The RSPB.

If you find dead wild birds, you should follow the latest guidance on GOV.WALES (Report and dispose of dead birds | GOV.WALES) or GOV.UK (Report dead wild birds - GOV.UK (www.gov.uk)) or  webpages. Remember not to touch or handle any dead or sick birds.

For a handy guide to identifying Welsh coastal birds, download our Nature On Your Doorstep spotters guide: Spotter's Guide | Museum Wales

Nature Finds a Way

3 May 2022

The Recolonisation of Invertebrates on Restored Grassland:

I’m Alyson, a Professional Training Year placement year student from Cardiff University (School of Biosciences), currently working within the Entomology department at National Museum Cardiff under the supervision of Dr Michael R Wilson (researchgate.net). My interest in ecology, conservation and zoology ultimately led me here, and with no prior specialist knowledge in entomology (the study of insects) I jumped in at the deep end. Within a few months I was sampling in the field and identifying leaf- and planthopper species from Ffos-y-Fran (an open cast colliery site near Merthyr Tydfil). This  is currently undergoing the process of restoration so that it is converted from a colliery site to reseeded grassland.

Sampling in the field at Ffos-y-Fran in July 2021

Samples were then frozen and analysed along with samples taken in 2017-2019

Sorting invertebrate samples using a microscope and forceps into labelled tubes of ‘Hemiptera’, ‘Coleoptera’, ‘Diptera’ and ‘Assorted’ before storing specimens in 80% alcohol for preservation

Identifying and analysing over four years of invertebrate samples, involved looking at 195 samples.  This took a fair amount of time but allows the rate of recolonisation over a 5-year period, total species diversity, richness, and population dynamics within the fields across the years and seasons to be calculated. Leaf- and planthoppers (Hemiptera: Auchenorrhyncha) were chosen as models within this study as they are frequently common within grassland environments and can be used as an indicator of recolonisation progress on man-restored environments and ex-colliery spoil sites. Colliery sites are a common landscape visible across the UK, especially in the south Wales valleys. Their ecological importance and possible biodiversity are often overlooked, however work by Liam Olds (formerly Natural Talent apprentice at Amgueddfa Cymru), continues to highlight this through the Colliery Spoil Biodiversity Initiative (https://www.collieryspoil.com/about).

The 195 samples were sorted into tubes labelled as ‘Hemiptera’, ‘Coleoptera’, ‘Diptera’ and ‘Assorted’

Further sorting of the Hemiptera samples to species level in order to record population and gender numbers

I am currently in the process of analysing this huge data set and creating a report to show the findings. However, in summary, the data has shown a trend of increasing diversity of hopper species within the field since it was reseeded. In total, 33 species were identified from the site – highlighting the ecological importance these habitats hold. Interestingly, grassland species generally uncommon to the area such as the planthopper Xanthodelphax flaveola and the leafhopper Anoscopus histrionicus, were abundant across the site leading to interesting discussion points as to why this environment encourages their colonisation. Other observations and discussions have also arisen from different wing-morphologies (shapes) seen in specimens of the same species. For example, the discovery of long-winged females of Doratura impudica, which are commonly a brachypterous species (short or rudimentary wings) encourages thought on arrival and colonisation methods of certain species, which could potentially help analyse other environments under recolonisation and ‘rewilding’ programmes. 

Uncommon species of grasslands in the area, leafhopper Anoscopus histrionicus (male specimen) were observed frequently at Ffos-y-Fran.

Uncommon species of grasslands in the area, planthopper Xanthodelphax flaveola (male specimen) were observed frequently at Ffos-y-Fran.

Long-winged morphs of Doratura impudica, a brachypterous species (short or rudimentary wings), were observed infrequently across the site

Studying the recolonisation of hoppers at Ffos-y-Fran has allowed me to develop and gain numerous skills which I will take with me into my final year of university and beyond. Not only have I been able to improve on existing skills such as report writing and data analysis, but I’ve also had the opportunity to gain new skills such as invertebrate identification, mounting specimens and taxonomical drawing. I’ve also had the chance to use the Scanning Electron Microscopy and sputter coating, and I have also used the imaging equipment at National Museum Cardiff to create a ‘species guide’ of the 33 observed at Ffos-y-Fran to supplement the report and provide a visual aid. Within my first few months at the museum, I was also able to get involved in a data collection project run by Dr Alan Stewart (University of Sussex), analysing specimens within the Auchenorrhyncha collections to create spreadsheets for the eventual creation of species distribution maps as part of the UK Mapping scheme for this insect group. There are so many opportunities and experiences to be had within the museum!

Looking through the collections and understanding the role of a collections manager

Gaining experience in imaging by photographing Fijian spittlebugs in preparation of redescribing and describing new species

My time with Amgueddfa Cymru has been amazing, conducting research and joining the Natural Sciences team, and has solidified my desire to pursue a career in research. I believe my placement has given me a great start for a future career with the skills I’ve gained and developed through my work on Ffos-y-Fran and my secondary research project. The second project I am currently working on in collaboration with Dr Mike Wilson will provide an up-to-date redescription and description of new species of Fijian spittlebugs with the aim of publication of my first peer-reviewed scientific paper. Watch this space to find out more on the latter project …. 

Taxonomy- A dying science?

29 April 2022

As a Biological Sciences student I am very familiar with the concept of classification and evolution, having been taught about it from primary school level. The idea of using a filing system to organise species became common place at secondary school level. Constantly reciting the Linnean system and its eight levels of taxa (domain, kingdom, phylum, class, order, family, genus, and species) for exams and coming up with rhymes and mnemonics to remember it in class. 

Museum scientist in the DNA lab

Due to this I was vaguely familiar with taxonomy, I knew what it was and why it was important, as I describe below. However, we never truly explored taxonomy in any great detail, especially in a modern context, and so I never thought about it as a career many still do today. That was until February of 2020 when I was searching for placement opportunities for my Professional Training Year as a part of my degree at Cardiff University, and I came across an opportunity to undertake at National Museum Cardiff exploring taxonomy. I now have a much greater understanding of taxonomy’s importance and unfortunately the crisis it might be facing.

What is taxonomy?

Taxonomy is the science of naming, describing and classifying species, including species new to science. It is the foundation stone of biological science. The first step in understanding how many species we have, where they live, and what they look like so others can identify them. For example, it can be an early indicator of evolution, and in seeing how the morphological characteristics of species may help in adapting and surviving in their environments. 

Some tools for taxonomic drawing for a species of shovelhead worm (Magelonidae)

Why is taxonomy important?

To understand the great diversity of the world we must know what is in it, and so taxonomy is essential in beginning to describe distributions and habitats of species. This will help scientists determine for example, whether a species is under threat, or the presence of an invasive species that can threaten other species and as a result their ecosystem. Scientists need to know all of the species in an environment, all described in a standardised manner that can be understood by those from around the world no matter the language spoken. This is so that they can begin to understand how to help preserve biodiversity and help the planet. 

Taxonomy is essential in aiding communication between scientists by giving a species a binomial scientific name. Many species will have many differing common names, for example Puma concolor, also known as the puma, cougar, panther, mountain lion, catamount, etc. in fact, P. concolor has over 40 common names in English alone. A binomial name (often in Greek or Latin) reduces confusion by surpassing language barriers and avoiding differing common names.

Puma concolor CC BY 2.0

Taxonomy is also the first step in identifying species that have the potential to help people, to that end, the species related to them which may possess similar qualities. 

Truthfully, it is not known how many species share the planet with us. The most commonly cited number is 8.7 million species, however, this number ranges from five to ten million species. Either way taxonomists have only identified and described around two million species. Unfortunately, there will be many species that become extinct before we even know they existed. Scientists are unable to determine the rate of species extinctions or truly understand changes in biodiversity on a global scale because of the frightfully little knowledge of the species we share the planet with.

Importance of taxonomists

As mentioned, I mostly knew taxonomy as science undertaken in the past and if I did think of it in a modern context it was through modern techniques such as DNA barcoding. As a career opportunity for new biologists, taxonomy barely crosses the mind. It has been suggested that funding in taxonomic research is also on the decline, and that traditional taxonomy is too slow in producing research papers. 

Museum scientist in the DNA lab

But while using DNA to aid in identifications and for evolutionary relationships is no doubt useful, it is dangerous to remove all of the other “old-fashioned” techniques used for looking into morphological characteristics. Techniques such as drawing, AutoMontage imaging, scanning electron microscopy, written descriptions from observations, notes on habitat and distribution to name but a few. DNA analysis should be used to supplement the more traditional techniques, not replace them. There have been numerous examples in papers of errors in conclusions being made due to scientists looking at species from only a genetic point of view but having misidentified the species. To that effect integrative taxonomy has recently become a popular choice. It includes multiple perspectives such as phylogeography, comparative morphology, population genetics, ecology, development, behaviour, etc., so as to create the best descriptions and knowledge of species. 

After all, without taking the time to properly observe and describe a specimen you won’t truly know what the species looks like and how it uses its features to survive. How shall keys and field guides be properly constructed so that non-experts can identify species too? Without taxonomists how can the irreplaceable and valuable collections in our natural history museums be properly maintained and organised?

Imaging software used to image specimens, in this instance, the abdomen of a new species of shovel head worm

As I have experienced in my research on a relatively understudied family, mistakes have been made in identifications leading to false conclusions to be drawn, which has dangerous consequences for example in determining biodiversity. These false identifications may be enhanced by a purely DNA route into taxonomy. If taxonomy starts to die and fewer experts who truly understand a species exist who shall correct these mistakes and continue to document the rich biodiversity of the world?