Friday, April 29, 2011

Corpse flower blooms in Basel

The Swiss city of Basel witnessed a rare flowering of the corpse flower, Amorphophallus titanum, over Easter.

The carrion flower is also known as the titan arum and and produces a scent which is not unlike that of a decomposing mammal. The scent is used to attract pollinating insects, in particular carrion flies and beetles, to the flower to transfer pollen. The flowers deep-red colouration also contributes to this carrion-like illusion.

The flower can reach over 3 metres in height but dies back quickly before it is replaced with a single large leaf. The underground corm (swollen plant stem) is the largest in the plant kingdom - around 50 kg.

Found growing in the wild in the rainforests of Indonesia, it is cultivated in many botanical collections around the world but it is notoriously difficult to get to flower.

Interestingly, the popular name titan arum was invented by David Attenborough when he famously filmed the plant for his 'The Private Life of Plants' BBC series. Apparently, he felt that continually referring to the plant by its Latin name on TV would be inappropriate. See video at the end of this post.

The Swiss flower was visited by more than 10,000 people on Saturday alone, each adult paying 10 Swiss Francs for a quick two-minute viewing. All the money raised was going towards funding events at the botanical garden.

Custodian of the Basel Botanical Gardens Heinz Schneider told Swiss TV, "It's crazy! Plant fans from all over Switzerland want to see the titan arum."

By Monday, the flower had wilted but the event was captured on webcam, from which the following series of images were taken (31st March - 27th April).


David Attenborough visits the titan arum in the wild:
(Ignore the title of the video - titan arum is not the biggest flower in the world!)

Wednesday, April 27, 2011

Do Irish people trust scientists?

A recent survey estimating the public trust in scientists and other professions makes for interesting reading but it is not without its flaws.

In a survey of just over 1,000 Irish adults, 61% said that they trusted scientitsts to tell the truth.
On the other hand, 16% said they felt that scientists would not tell them the truth.

The results come from a Millward Brown/Lansdowne survey conducted between February 9th and 3rd March, 2011 and released by the Medical Council today.

Doctors were found to be the most trustworthy profession in the country, according to the survey, with 88% of respondents saying they would trust a doctor to tell them the truth.

Teachers (79%), Professors (72%), Judges (71%) all scored relatively highly with TDs (12%), Pollsters (25%) and Business Leaders (27%) bringing up the rear of the poll.

The poll makes an interesting, although probably not intentional distinction between scientists (61%) and scientists working in academia (which must make up at least part of the score for Professors; 72%).

Does the conferring of the title 'Professor' immediately make you more trustworthy as a scientist in the eyes of the Irish public?

It would be useful, in future surveys of this nature to look at the difference between industry and academia in terms of science. For instance, teachers scored 79% trustworthiness in this survey, and at least a portion of them must also be trained scientists.

The findings reflect earlier studies across Europe which show that individuals trust scientific information they recieve from 'academic' scientists more than that which they get from 'industry' scientists.

Whatever the usefullness of such a survey, it is to the advantage of science that scientists continue to communicate with the general public in a truthful and meaningful way. Maybe then we'll beat those doctors!

Source: Medical Council

In the running: the origin of the modern racehorse

Byerley Turk
For years there has been intense speculation as to the origin of the so-called "foundation mares" - those female horses which were bred with a handful of Middle Eastern stallions to kick start the Irish and English Thoroughbred racehorse industry.

All modern Thoroughbreds can trace their ancestry back to three stallions which were imported into England in the 17th and 18th century - Byerley Turk (1680s), Darley Arabian (1704) and Godolphin Arabian (1729). Incidentally, Byerley Turk is reputed to have been used by his owner Captain Robert Byerley at the Battle of the Boyne.

The origin of the maternal lineage is  less clearcut as the influence of the female line was thought to be less influential than the male line in the early years of horse breeding.

Now, a group of UK and Irish scientists have used mitochondrial DNA from 1929 horses to determine the origin of these foundation mares.

Their results show that Thoroughbred foundation mares were not exclusively Arab or Oriental but, in fact, were of 'cosmopolitan European origin' with some contribution from 'Barbs' (i.e. North African) and significant contributions from British and Irish Native horses.

According to the results (published in Biology Letters) British and Irish Native horses made twice the contribution to the heritage of modern Thoroughbreds that Oriental (term used in historic records referring to Mid-East and West-Asia) horses did.

Mitochondrial DNA analysis is a perfect way of studying female lineage because mitochondria are normally inherited exclusively along the female line. So, all of your mitochondrial DNA was inherited from your mother, becuase mitochondria in sperm cells are usually destroyed by the egg cell after fertilisation has occurred.

You can read all of the research here (pdf).

Friday, April 22, 2011

Patrick O'Hara: An Ecological Artist

'The Star Lily and the Iris' by P. O'Hara
A few weeks ago, I had the pleasure of visiting a wonderful exhibition of botanical paintings and sculptures by the Cork-based artist Patrick O'Hara.

The exhibition is currently taking place in the Boole Library exhibition space at University College Cork and I enjoyed chatting to the artist about his work.

The exhibition predominantly features the artist's watercolours of Californian flora and fauna along with a selection of his impressive botanical sculptures.

O'Hara has travelled extensively from his home near Carrigaline, Co. Cork across Ireland, Britain, Europe, Africa, Arabia, Asia and America to study plants and butterflies in their natural habitats.

Speaking to O'Hara, his background in biology and botany in particular becomes clear and he has a keen interest in the science of the plants he seeks to capture in his art. He studied botany, zoology and geology at Reading University.

Each piece of sculpture and watercolour is the result of countless hours studying the organism in the natural environment and taking careful notes and sketches of the shape and colour of the plants. It is only when he returns to his studio that the work of painting or sculpting what has been recorded can begin. His delicate and scientifically accurate porcelain sculptures can take up to 3 months to produce and involves painting the pieces using the notes he made in the field to ensure that the correct shade is reproduced.

'A Proud Poppy of California' Matilija Poppy (Romneya coulteri) and Western Tiger Swallowtail. The artist writes: These huge and beautifully scented flowers belong to a family of plants first discovered in the Santa Ana mountains by Irish botanist Thomas Coulter during his travels around southern California between 1826 and 1836. The Latin name is tribute to him and his great friend, the Irish astronomer Romney Robinson.

What strikes me about O'Hara's work is not just the beauty and scientific accuracy, but also the decision to not present the plants in isolation but rather to present them as entire ecosystems where different plants, lichens, mosses, insects and butterflies interact. It is this detailed and realistic approach that makes O'Hara more an 'ecological artist' rather than a botancial artist.

Given the nature of Patrick O'Hara's work, it is fitting that it will shortly adorn the walls of Fota House in East Cork, the gardens and arboretum of which are a national botanical treasure. The artist is donating prints of each of his California wildflower watercolours to the Irish Heritage Trust who manage Fota House.

Patrick O'Hara's exhibition 'Secret Gardens of the World: The Wild Flowers of California' runs in the Boole Library, UCC until the 28th June 2011. For more information his work, you can visit www.ohara-art.com

'Three Friends in Winter' porcelain sculpture by P. O'Hara. Ginger, Liquorice & Ephedra

Thursday, April 21, 2011

Boole Update

Just a quick update on George Boole's former home in Cork City.

As you may remember, this blog was the first to report on the partial collapse of the former home of the noted mathematician back in October of 2010.

I've covered the story in a series of posts and photo essays and in a Cork City Council meeting in March, it was announced that €135,000 would be spent in an effort to save the building.

The work is to include the removal of roofs and internal floors and the erection of a steel frame to support what is left of the building.

Cork City Council are paying for the work to be carried out before establishing id their is any interested parties willing to develop the building for an educational/historical use.

The most recent images from the site show that the interior of one wing of the building has now been completely gutted, the windows removed and preparations put in place for the erection of the steel frame.

The speed at which this work is being completed is terribly slow and even when it is complete, this building of rich historic and scientific importance will face a very uncertain future.

Monday, April 18, 2011

Mystery Science - Can you tell what it is yet?

Thanks to everybody who tweeted their guesses as to what the mystery item was. Unfortunately nobody got it right - better luck next time!

In fact, it was not a whole animal but just a 'small' part of one of the largest animals on earth. It was.... an elephant molar tooth. From an Indian elephant to be exact.

The pointy bits towards the top are the 'root' part of the tooth which would have been embedded in the gum of the animal. The specimen is resting on the rough grinding surface of the tooth.

If you compare it to the image of the molars in situ, you can see what it looks like from the underneath. An Indian elephant will produce six sets of molars in it's lifetime, although just one pair will be in use at any one time. Once that pair has been worn down, it is replaced with a new pair which push forward from the back of the mouth.

I’m a scientist, not a freaky nerd

It was a tense, nervous fortnight of probing questions and judgemental teenagers, but I’m a Scientist, get me out of here may well be the future of science communication in Europe.

It seems that some of the students like it too. As one student wrote after the 2010 event: “I’m a scientist is a website aimed at all teenagers – interested in science or not (but believe me, by the time you finish the project, science will have taken over your brain and made you love it for the rest of your life)”. High praise indeed!

Read the rest of this post here in the Euroscientist, the official publication of the Euroscience organisation. It publishes articles on a variety of topics based on science and science policy.

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