Archive for the ‘ZOOLOGY’ Category

DNA clue to what species might struggle with ‘global warming’.


The West Antarctic is warming faster than any other region on Earth and Dr Louise Allcock NUIG, said it is also untouched and a perfect natural laboratory to study the impact of climate change on biological species (Credit: UNEP)

DNA, the famous ‘code for life’ can help catch a criminal, prove parentage, or link someone with a long-lost cousin. It can also provide clues as to what species of plants and animals might survive or disappear with global warming.

The Earth has been a lot cooler, and warmer at various times in its past, and such changes have often led to large-scale extinctions of many species. The question for scientists is: Why did some survive, while others perished?

Dr Louise Allcock, a zoologist based at NUI Galway, has been using DNA to determine what exactly happened to the number and distribution of particular animal species during past Ice Ages in Antarctica.

This evidence from the past can provide a clue as to what might happen to animals worldwide with global warming.

It could provide an early warming system for species that are likely to get in trouble with global warming, and, thereby, allow some time for experts to put a conservation strategy in place.

LISTEN: Interview with Dr Louise Allcock

Broadcast on 2nd August 2012 on Science Spinning on 103.2 Dublin City FM.

The Secret to Insect Success: The Cuticle


The natural material that covers the entire outer body of this grasshopper and many other insects is cuticle. (Credit: Dr Jan-Henning Dirks)

Insects have been around for hundreds of millions of years, and are found in large numbers even in the harshest climates around the world.

So, what is the secret to their success? Well, one major factor is undoubtedly the cuticle, which covers the outer body of insects, such as the grasshopper pictured here on the right.

Despite the abundance of cuticle – it is the second most common natural material on the planet – no-one had studied its engineering properties in detail.

Until now that is.

Dr Jan-Henning Dirks and Professor David Taylor at the TCD Department of Mechanical and Manufacturing Engineering have shown that cuticle is flexible, lightweight, very strong, and crack resistant.

These are properties of interest to many industries, such as airplane manufacturers, for example.

LISTEN: Interview with Jan-Henning Dirks

This interview was broadcast on Science Spinning on 103.2 Dublin City FM on 17-04-2012

TCD’s Ant Man: Dr Colby Tanner


Despite what this picture taken at Dublin Airport suggests, ants are rare in Ireland, and, experts believe, they are becoming rarer (Credit: Jen)

Ants are members of the group of social insects (insects that live together in large colonies) which includes bees and termites. They are fascinating creatures to study.

They organise their societies with precision, every individual has a clear role, they are brilliant builders, ferocious in defending their interests, and have incredible physical and sensory abilities.

Dr Colby Tanner, ant researcher based at the TCD Theoretical Ecology Group would certainly agree that ants are fascinating.

Colby has been working recently in the University of Lausanne with a group using infra-red as a way to track individual ants, in order to  find out exactly where they go and what they do, within the colony.

LISTEN: Interview with Colby Tanner

Broadcast on Science Spinning on 103.2 Dublin City FM on 26-04-2012

The Misunderstood Crocodile


Source: Crocodile Information and Facts

Can you imagine having the crocodile pictured here as a house pet?

Or training a crocodile to sit, lie down, or politely wait to be fed?

It might sound crazy, but that’s exactly what John Dunbar, a mature student of Zoology at NUI Maynooth has done.

John, who is involved with the Reptile Village in Gowran Co Kilkenny, believes the feared crocodile has been totally misunderstood by humans.

Listen: Interview with John Dunbar, the Reptile Village co Kilkenny

Broadcast first on 103.2 Dublin City FM on 21/04/2011

Click to visit the Reptile Village.

When Ireland was ‘Wolf Land’


Wolves were in Ireland long before humans arrived, perhaps as long ago as 30,000 years back when they would have moved across Ice sheets from continental Europe into a land that was, at that stage, like today’s Siberian tundra.

(Picture Credit: Four Courts Press)

The archaeological evidence suggests that they lived here in plentiful numbers, that is until a systematic process of extermination resulted in the last wolf being killed, most likely in 1786.

In fact, Wolves were plentiful in Ireland long after they had been hunted to extinction in England and Wales, and to a lesser extent Scotland. This was why Ireland was referred by some outsiders as ‘Wolf Land’.

Wild wolves roamed the land, and the native humans, at least to English sensibilities, were not that much tamer.

‘Wolves in Ireland, A Natural and Cultural History’ by NUI Galway geographer Dr Kieran Hickey is an interesting, and well researched book, on many levels.

The author covers the archaeological evidence, the origin of Irish place names linked with wolves, the mythology, folklore and superstition around wolves, the relationship between man and wolf in pre and post Anglo-Norman times, the causes for the decline and extermination of the wolf, and a consideration of whether wolves should be re-introduced.

It is interesting to note, for example, that wolves  probably hunted with early humans in Ireland, before the emergence of wolf-dog hybrids. In these times, the wolf was considered a partner in survival and was not synonymous with evil.

There is plenty here to interest anyone interested in Irish history, zoology, brehon laws, or the Anglo-Norman conquest.

Listen: Interview with the author, Kieran Hickey

Price: €29.95 in hardback

Publisher: Four Courts Press

Animal Morality, Cork’s ‘Deep Space Telescope’


Animal Morality, Cork’s ‘Deep Space Telescope’

Science Spinning: ‘The Show with an Irish Spin on Science’, Presented and Produced by Seán Duke

Elephants are sensitive, moral, creatures that display acts of kindness towards other elephants, even those they are not related to (Credit: Vegan soapbox)

Broadcast on 103.2 Dublin City FM, 12/05/2011

To contact the show email: sciencespinning@dublincityfm.ie

Super-Powerful Telescopes, the ‘Misunderstood Crocodile’


The European Extremely Large Telescope, shown here as an artist’s impression, due to be built in 2018, could answer some of the Universe’s unanswered questions (Credit: European Space Observatory)

Science Spinning: ‘The Show with an Irish Spin on Science’, Presented and Produced by Seán Duke

Super-Powerful Telescopes, the ‘Misunderstood Crocodile’

This episode was broadcast on Dublin City FM, 21/04/2011

To contact the show email: sciencespinning@dublincityfm.ie

NUIG & ‘Intelligent Cars’, Mapping Ireland’s Mammals


The National Biodiversity Data Centre wants the public to help with the identification of native mammals such as this feral goal (Credit: Liam Lysaght)

Science Spinning: ‘The Show with an Irish Spin on Science’, Presented and Produced by Seán Duke

Intelligent Cars & Mapping Ireland’s Mammals

Broadcast on Dublin City FM, 14/04/2011

To contact the show email: sciencespinning@dublincityfm.ie

Social ‘Net Searching, Ireland’s Animals & Prime Numbers


Science Spinning: ‘The Show with an Irish Spin on Science’, Presented and Produced by Seán Duke

Broadcast on Dublin City FM, 20/01/2011

Social ‘Net Searching, Ireland’s Animals, & Prime Numbers

To contact the show email: sciencespinning@dublincityfm.ie

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