Conserving Garden Plant Diversity

Written by Yvette Harvey, Keeper of the Herbarium, Royal Horticultural Society, RHS Garden Wisley.

We live at a period in time where we are very familiar with the concept of mass extinctions that are likely to be caused by human intervention (from burning of the rain-forests, hunting and desertification through to global warming). As the years/decades/centuries progress, our preserved plant and animal [by which I mean anything that moves] collections find themselves being useful tools to provide empirical evidence for the causes of the above, outside of their main purpose of pure taxonomy (Thiers 2020: 219-242).

Following the recent closure of Kew’s Red Listing department, conservation is a subject that readily springs to mind. With c. 390 million specimens contained within the World’s herbaria, information captured in specimen labels has ultimately provided the data for calculating the Area of Occupancy and Extent of Occurrence, both of which play a large part in assessing the IUCN (International Union for Conservation of Nature) Red listing of a plant.

I am lucky to work with a specialist herbarium collection – one that contains ornamental plants based at RHS Garden Wisley. Yes, highly unlikely to play a role in an IUCN assessment, but all the same, a dried ornamental plant collection does play a vital role in conservation. Whilst Plant Heritage aims to conserve living plants, a herbarium that specialises in ornamentals (cultivars) can preserve material of long lost or even recently lost garden plants.

Continue reading

We Brought Our Electric Ray Specimens Into The Lab…What Happened Next Will Shock You!

Written by Claire Smith, Project Officer at the Cole Museum of Zoology.

If you’ve been following the Cole Museum of Zoology on Twitter, you’ll know that the museum is closed at the moment – not only because of the COVID-19 lockdown, but also because we’re preparing our collections for their move into a brand new Life Sciences building. While the new museum may not be ready to open until 2021, we have plenty of work to do behind the scenes in the meantime.

Along with a team of staff and volunteers, I work on the fluid-preserved collections at the Cole Museum. As well as the ongoing task of keeping all of the wet specimens in good condition, we’re also putting some into safe storage, and getting others ready to go out on display. As part of my fluid-preservation Twitter, I share weekly threads about the kinds of tasks that the team takes on.

When specimens come into the lab needing work, we identify them from an abridged version of the museum’s catalogue. This gives us basic information such as the specimen’s accession number, its species, and what kind of fluid it’s preserved in. The majority of the Cole Museum’s specimens are fairly new, by museum standards – they’re mostly around 60 to 100 years old. Many of them have been re-sealed, re-mounted or been housed in new jars during this time, but every now and then we come across one which appears untouched. Continue reading

Time To Figure Out Where Specimens Are Really From

By John-James Wilson, Curator of Vertebrate Zoology, World Museum, National Museums Liverpool.

In 2020 the Vertebrate Zoology collection at World Museum took a step towards ‘FAIR’ data sharing and began adding datasets of specimen records to the Global Biodiversity Information Facility (GBIF). There is always a trade-off between releasing datasets as soon as possible and ensuring they contain the most precise and reliable data possible. We’ve taken the view that through releasing these datasets, and encouraging their use, a positive feedback loop will incrementally improve data quality. That said, due to restrictions on other activities, one side effect of the Covid pandemic has been a little more time for in-house provenance research.

Banded Broadbill – Eurylaimus javanicus Horsfield, 1821 [accession number: NML 31.12.14.56a]. Collected at ‘Kao Nawng’, Surat Thani, Thailand on 1913-07-21 © National Museums Liverpool (World Museum).

One collection I’ve focussed on during this time is that of prolific collecting duo, Herbert Christopher Robinson and Cecil Boden Kloss, which came to World Museum from the Federated Malay States Museums (FMSM) in 1914. Robinson, a former assistant at the Liverpool Museums, directed the FMSM from 1908 until 1926; Boden Kloss was the colleague ‘to whom he was much attached’. It seems that the FMSM specimens arrived in Liverpool without any additional documentation, so the collection locality information in our database (at National Museums Liverpool we use Mimsy XG) must have originally been transcribed from specimen labels with ‘place collected’ presumed to be Malaysia. Continue reading

Chill Out: A Cautionary Note On The Use Of Aqueous Treatments On Taxidermy

Written by Lu Allington-Jones, Senior Conservator at the Natural History Museum, London.

Whilst trying (not very successfully) to find a “cure” for fat burn (Figure 1), I made an unwelcome discovery: sometimes the shrinkage temperature of deteriorated skin is actually lower than room temperature. This means that the skin will irreversibly shrink as soon as any water-based treatments are applied.

Figure 1. Fat burn can cause skin to rip and specimens fall apart

Shrinkage temperature (Ts) is commonly used in leather conservation to determine the level of deterioration, and the effectiveness of treatments. Ts is the temperature at which 2 corian fibres immersed in water show simultaneous and continuous shrinkage activity. It shows the level of deterioration because it indicates destabilisation of collagen fibres. Ts of fresh skin is 65oC and in deteriorated leather this can be reduced to 30oC (Florian, 2006). Ts is measured by immersing samples of leather (or skin) in water and gradually increasing temperature until shrinkage activity is observed under a microscope (Larsen et al. 1996; Vest & Larsen, 1999). Continue reading

Legacies Of Jamaica: A Not So Elegant Priest!

Presented by Mama D Ujuaje & Rhian Rowson, Bristol Museums, Galleries & Archives.

Abstract

This presentation discusses a previous successfully curated public event, The Food Journey, held in the summer of 2019, forming part of a long term international project linked to our Jamaican botanical collection.

Addressing many of the contentions of Jamaican history, this presentation evokes a feel of mid-eighteenth century Jamaica by describing how making use of dramatic narrative, a soundscape, food tasting, aromas and textures of the time and geography, allow the context of the collection to come alive and to, as it were, ‘answer back’ to the authority of the author’s claims. We use costumed dialogue to help re-enact the immersive feel of the original production.

We include in our presentation a discussion of how the collection came about and its use over the years and how that might be critiqued in the context of slavery analyses over time and current notions concerning the erasure of traditional knowledge forms.

Continue reading