Saturday, April 23, 2011

Guest Blog by Julia Cooke, author of "My Little World".

I'm delighted to welcome guest blogger, Julia Cooke, author of My Little World, a picture book for children. Julia is on tour in the blogosphere - see here for tour dates and places!

Getting the science right in 
My Little World

My Little World is the story of a child finding a world of tiny animals and plants when they can’t see the birds and mammals that the grown-ups see on a bush walk. The main message is that you can find the most amazing things by looking carefully - and a different perspective can be useful too. But how could we encourage careful observation in a reader unless we had taken care in selecting and presenting real species?  





Full credit for the illustrations, of course, goes to award winning illustrator Marjorie Crosby-Fairall. Her use of colour to create different micro-habitats and her attention to detail is magnificent - to me the pages are bustling with life. I can’t speak for Marjorie about the production of the beautiful illustrations, so this post will focus on some of the research behind them in which I was involved.  

My Little World is set in Canberra, the bush capital, on Black Mountain (it has the iconic telecommunications tower on top). I visited the site, took photos and wrote the story around what I had seen. This research was sufficient for my English assignment (the reason I wrote the book in the first place), but when it came to producing a real book, we needed more species and full identification. As a plant ecologist, I could use my knowledge of scientific resources to contribute species lists, reference images and check details for Marjorie. It was very different research to my normal studies, and it was fun but quite a challenge!

Creating a plant list was facilitated by online records that amateurs and professionals had compiled (including from online herbaria) specifically for Black Mountain and I could identify species on the mountain myself. My Little World includes several species of eucalypt (red box, red stringy bark, inland scribbly gum, candle-bark gum) and a range of plant families including Poaceae (kangaroo and white-top wallaby grasses), Fabaceae - Mimosoideae (red stemmed and box-leaf wattles), Fabaceae - Faboideae (purple coral pea and twining glycine), Liliaceae (nodding blue lily) and ferns, a moss, a sundew and an orchid. The book is set the book in October, when many species are flowering and we used floras to check flowering times.


Scribbles on Eucalyptus haemastoma © Julia Cooke

For invertebrate species I identified the species I had seen on site and searched the online records from the Australian National Insect Collection (ANIC) for species collected on Black Mountain and Canberra. The search was a great starting point (possibly the location of CSIRO Entomology/Ecosystem Sciences at the foot of Black Mountain helped!), though not all ANIC records are available online. Other species, such as the blue-banded bee, I was introduced to at a friend’s house and was delighted to be able to include. I also wrote to more than a dozen researchers, often with suggestion of species to check details of their distribution and for reference images and sometimes for the suggestion of a snail or fungus for which readily available records and information are more limited. The generosity of the people I contacted was amazing. A range of insect orders are featured including Hemiptera, Coleoptera, Orthoptera  as well as a spider (Araneae). We chose species that are easily seen, and those that are harder to spot such as the pollen feeding katydid (Zaphrochilus australis).  

Marjorie needed good reference images for all species. The internet was a wonderful resource providing ready access to both amateur and professional pictures.  Where an image was heavily relied on, we contacted the photographer for permission to use their images or to request a higher resolution images. Again, we received very generous responses. For some species, photo references just were not available.  Line drawings and scientific descriptions were used, and in some cases we took further reference images ourselves. I photographed scribbles, the mines of the larvae of Ogmograptis spp. (which differ in morphology between Eucalyptus species), and I photographed the head and wing scales of a Meadow Argus specimen borrowed from a university colleague.  


Eye spot on wing of Junonia villida © Julia Cooke

As with the plants, we checked the phenology of the animals to ensure they could be seen in October.  The Christmas beetle (Anoplognathus montanus) which, as their name suggest, are often abundant in December, may be stretching this a little, but as there were several records of Christmas beetles on Black Mountain from October, I let it in!

Species with contrasting distributions were also selected. The meadow argus (Junonia villda) is found throughout Australia, so almost any reader in the country could see one. But then there are other species that have a much more limited distribution, such as the lemon cap orchids (Caladenia cucullata). It is the suite of species rather than an individual species that make it specific to the Canberra region. We included two endangered species, the sun moth (Synemon plana) and perunga grasshopper (Perunga ochracea), which may now be extinct on Black Mountain, but could still be found there and deserve attention.

During this process, I realised that an illustration shows more than just morphology. The illustrations depict behaviours, interactions and species co-existence - the way a bee flies, the pattern on a spider web, the way a caterpillar moves. There is a eye-patterned gum hopper (Platybrachys vidua) on one of the early pages. When I first wrote the book, the gum hopper I saw was on some grass - I spotted it because the brown animal stood out against the green leaf. The nymphs are more normally found, but better camouflaged, on eucalypt trunks, but are easily disturbed and jump away, often ending up in unlikely places. So, was it better to present typical behaviour or what I actually saw? In this case I chose to portray what I had seen (though a grass tree was substituted for some grass) and we did put a eucalypt on the page too, as a reference to their their normal habitat.

Most of the species in the book have their common name written next to them, cleverly incorporated by the designer so that they do not distract the eye from Marjorie’s illustrations.  At the back of the book I have provided notes on the focal species from each page, giving the scientific name and some brief ecological details. I hope children will ask questions about the plants, animals and fungi they see in the pictures and these names and information will provide some of the answers. I've compiled teacher’s notes too (available here) that use the book to introduce life cycles, nature diaries, phenology, scientific names, animal behaviour, animal signs, micro-habitats, camouflage, valuing invertebrates and many other issues that are scientific but accessible, important and fascinating for children.


Julia Cooke on Black Mountain
© Shannon Cornish

I hope My Little World makes a small contribution to encouraging children to delight in and appreciate nature, and in turn to conserving the natural world. It is unlikely that you would find all the species depicted in My Little World if you went for one walk on Black Mountain, but you could find them there. I’m sure I didn’t get all the details right, but I gave it my best shot and hopefully readers will appreciate that.

Cheers,
Julia.

(I'm on tour in the blogosphere - see here for tour dates and places!)

Title: My Little World
Author: Julia Cooke
Illustrator: Marjorie Crosby-Fairall
Publisher: Omnibus Books, $26.99
Publication Date: April 2011
ISBN: 9781862917903
Format: Hard cover
For ages: 4+

Sunday, March 13, 2011

This Island Earth

Often we hear of the emotional impact felt by astronauts as they look down at earth from space, comprehending on a visceral level just how isolated and vulnerable our home is. The photo of earth taken from Apollo 17 has come to symbolise that sense. This image, according to a NASA archivist, is probably the most distributed image in human history. I had a poster of it on my wall, as a teenager in the 'seventies and used to gaze at it. It seemed to put things into perspective.





As a result of yesterday's earthquake in Japan, the earth's rotation has shifted 25cm. 

The main island of Japan has moved 2.4m.

The power of the resulting tsunami streaming out across the Pacific is staggering in its intensity and range.



Image showing the intensity of the Japan tsunami, 12 March 2011.
Source: National Oceanic and Atmospheric Administration


We are a small part of a very thin and fragile biosphere, wrapped around this pulsing, shuddering behemoth.

That puts things into perspective too. 

Tuesday, February 22, 2011

Tom Paine's Ghost: Post with the Most!

A great blogging competition is afoot! Over at Tom Paine's Ghost, Kristopher Hite has announced the second annual Post with the Most event. From his blog:
A $100 cash prize will be awarded for the most powerful blog post freely available out there on the interwebs.

Post content is limited only by the bounds of imagination.
Keep in mind Tom Paine's Ghost was founded amidst a battle to defend freedom of the press and we hope to echo that theme throughout our pages.
Submissions will be selected and judged on the basis of four criteria:

1. Clarity
2. Originality
3. Integration (at least three forms of media would ideally be utilized, images, text, movies (you tube or vimeo), audio, etc.)
4. Power (the post's ability to motivate readers to action).

Last year, the wonderful Christie Wilcox of Observations of a Nerd won the award with her post, Reflections on the Gulf Oil Spill -- Conversations with my Grandpa, and you can see some other entries here.

So support good blogging, and either enter your own work or pass this on to someone you know who deserves the glory!

Sunday, January 23, 2011

Cryptostylis subulata

Native ground orchids can be contrary beasts. Since I last blogged about Cryptostylis subulata (Large Tongue Orchid) growing in our garden four years ago, there have been none in flower here... till this week:


Cryptostylis subulata
Cryptostylis subulata


This specimen is growing on the edge of a sandstone platform, the flowers hanging down over the cave beneath.

There is much that is remarkable about C. subulata. As with the other species of the genus endemic to Australia, it is exclusively pollinated by the male ichneumon wasp Lissopimpla excelsa (the dupe wasp). The orchid flower mimics a female wasp, not only through its appearance, but also by exuding a chemical counterfeit copying the pheromone of the female wasp. The male tries to mate with the flower--even to the point of ejaculation--and in doing so, transfers pollen.

This sexual deception is an extraordinary example of an exploitative symbiosis. Many plants engage in deception to trick pollinators into transferring gametes for them, and it is particularly common among orchids. There are cases of orchids emulating brood sites, food, and in at least one curious case, a marauding bee. Real bees will attack and brush against the flowers of Oncidium hyphaematicum as they wobble in the breeze, the pollen adhering to their bodies for transport to the next orchid.

Orchids also have very specific mutualistic relationships with fungi. Their seeds are minute and lack endosperm--the portion of the seed that provides food for the growing plant embryo. They are entirely dependent on fungi for energy at this stage, and later, form crucial relationships with mycorrhizal fungi for nutrients. The relationship between the evolution of pollinator deception, fungal symbionts and orchid diversity is an area of research rich with promise.


References:

A. C. Gaskett, C. G. Winnick, M. E. Herberstein (2008). "Orchid Sexual Deceit Provokes Ejaculation". The American Naturalist 171 (6)

A. C. Gaskett, M. E. Herberstein (2010). "Colour mimicry and sexual deception by Tongue orchids (Cryptostylis)". Naturwissenschaften 97: 97–102