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Commonwealth Environmental Water Holder Update - Spring 2016
Final Update from the Chairs’ - 5 September 2016
Commonwealth environmental water use in the Murray-Darling Basin during wet conditions
Another big predator in Southeast Asia faces extinction
At best, just 2,500 Indochinese leopards survive today across Southeast Asia. They have been eradicated from 93% of their historic habitat by snares, poachers, deforestation and declines in prey. Can conservationists stop the bleeding before its too late?
Conservationists have long known that it’s hard – and in some cases – nearly impossible to survive as a tiger in Southeast Asia. Burning forests, high human populations and unflagging demand for tiger blood, tiger skin and crushed tiger bone means the big cats have to tread a daily gauntlet of snares, guns and desperate poachers. Now, conservationists are discovering, belatedly, that the same is largely true for leopards.
A sobering new study in Biological Conservation has found that the Indochinese leopard – a distinct subspecies – may be down to less than 1,000 individuals. And in the best-case scenario only 2,500 animals survive – less than the population of Farmsfield village in Nottinghamshire.
Continue reading...'Oldest' pink cockatoo dies at 83
Uncertainty about Arena halts renewable energy projects
Geodynamics makes announcement as solar researchers speak out against cuts to the Australian Renewable Energy Agency
Renewable energy projects in Australia are already being suspended as a result of the two major parties’ plans to effectively abolish the Australian Renewable Energy Agency (Arena).
In an announcement this week to the Australian Stock Exchange, Geodynamics announced it was suspending two large biogas projects in Goulburn, New South Wales, and Mindarra, Western Australia. It told investors it was doing so because of uncertainty surrounding the possibility of getting grant funding for the projects in the future.
Continue reading...Bringing the harvest home in Cornwall
Kit Hill, Tamar Valley Patches of sunlight enhance emerald regrowth in hay and silage fields, and the luminous glow of stubble and uncut corn
Harvesting of cereals is fast these days, hardly noticed by passersby. Close to home, stubble is glimpsed through gateways off narrow lanes encompassed by rank hedge banks overgrown with honeysuckle. Loaders and trailers race to gather the big round straw bales before rain, and there remain some uncut fields of later, spring-sown, barley.
The rare sight of stooks (cut for thatching) prompt boyhood reminiscences: Jack, my husband, drove the Fordson Major, pulling the binder with his father sitting on the back, and our neighbour, Jeff from Yorkshire, was tasked with catching tossed up sheaves and handing them, butt side out, to the expert rick builder for layering around the central vent.
Continue reading...AEMO “conservative” battery storage view highlights barriers to change: Corbell
You say tomato... why some fruits are forever doomed to be called veggies
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When it comes to fruit and vegetables, the most common battleground (for parents and public health experts alike) is getting people to eat them. But there’s a battle over semantics too, because many of the things we call “fruit” and “vegetables” … aren’t.
In botanical terms, a fruit is relatively easy to define. It is the structure that develops from the flower, after it has been fertilised, and which typically contains seeds (although there are exceptions, such as bananas).
But while there is no doubt that tomatoes, cucumbers and pumpkins are fruits in the botanical sense, any linguist will tell you that language changes and words take on the meaning that people broadly agree upon and use. We live in a linguistic democracy where the majority rules.
Hence a tomato is still usually called a vegetable – although many people take pride in calling it a fruit, while overlooking other “vegetables” with similar claims to fruit status. If this makes your inner pedant bristle, that’s just tough – trying telling the nearest five-year-old that a pumpkin’s a fruit and see how far you get.
Berries, by definition, are many-seeded, fleshy fruits which are often brightly coloured. They may have a soft or tough outer skin, but they must be fleshy. Oddly, strawberries and raspberries are not really berries at all, because they originate from a single flower which has many ovaries, so they are an aggregate fruit.
True berries are simple fruits that develop from a single flower with a single ovary. Tomatoes and grapes are technically berries, as are avocados, watermelons, pumpkins and bananas. Citrus fruits are also berries and their flesh is renowned for being acidic, which makes the flavour bitter.
Nuts are generally dry, woody fruits that contain a single seed. However, as you might have come to expect by now, things are not always so simple; the word “nut” is often used to describe any woody fruit. So a Brazil nut is actually a seed, whereas the walnut is botanically a “drupe” – a fleshy fruit with a hard inner layer that often persists when the flesh is lost (other drupes include peaches, mangoes and olives).
We all know fruits are good for us, but why are they typically more appetising than vegetables (certainly to kids)? Fruits are often the means by which seeds are dispersed and so the plant, in competition with other plants, needs to attract the right insect, bird or mammal to spread its seeds. This is why fruits are often brightly coloured and rich in nutrition (or at least high in sugar). It is not just humans who like a flash of colour and a soft, sweet sugar hit.
On the other hand, in the case of many leafy vegetables, plants need to protect their leaves from grazing animals and insects. The leaves are valuable and productive assets and so contain chemicals that are often unpalatable. They may be bitter or very strongly flavoured, which may explain why kids are inclined to stay away from them. Luckily, proper cooking and good recipes can often save this situation.
Now eat your veggiesSo if fruits are, with a few exceptions, seed-bearing organs, what are vegetables? Here the definition is less clear, because the word “vegetable” has no real botanical meaning.
To a botanist, if the word vegetable is used at all, it would simply mean any plant, in much the same way that plants are collectively referred to as “vegetation”. So we could apply the term vegetable to almost any part of any plant if we wanted to. Hence the term tends to encompass a wide range of foods, particularly green leafy ones.
Cabbage, lettuce, zucchini and cucumber are all described as vegetables (despite the latter two being fruits), and the term has generally come to refer to a specific group of plant parts that are commonly used as foods in various societies. Of course, different cultures eat different parts of different plants. But, generally speaking, in Anglophone cultures the term vegetable is used for plant materials used to make a main meal, while fruits are typically associated with breakfast or dessert.
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Among the group that is loosely classed as vegetables, there are some interesting and diverse structures. Bulbs, such as onions and garlic, are highly modified shoots that develop as fleshy underground organs from which new plants can develop. They are a form of asexual reproduction, a natural kind of cloning.
The bulb contains all of the ingredients required for the production of a new plant, such as roots, leaves and flower buds. The food reserves it contains – usually starch or sugar – allow a new plant to develop rapidly at the appropriate time, hence the sweetness of onions and the fact that they caramelise so beautifully. Bulbs such as garlic can also contain pungent defensive chemicals to ward off insects or fungi.
The flowers and stems of many vegetables can also be tasty and nutritious. The flowering heads of broccoli and cauliflower are prized, as are the stems of celery and rhubarb. Once again the richness and diversity of flavours arise from the different chemicals that the plants produce to protect their valuable assets from the ravages of grazing by insects and other animals.
Tubers are formed from swollen stem or root tissue, and it’s relatively easy to distinguish between the two because stem tubers have buds, or “eyes”. Potatoes are typical stem tubers, whereas carrots are root tubers. All tubers are storage organs and last only a year. They are rich in starch, which is often readily converted to sugar to fuel the plant’s growth.
These plant-nourishing characteristics also make tubers very nutritious for us. What’s more, their high fibre content and homogeneous internal structure mean they can be cooked in a wide variety of ways: boiled, mashed, chipped, baked or roasted – even though you and I might not necessarily see “eye to eye” on which is tastiest (with all due apologies for the cheesy potato pun).
While the definitions may be debated and the words may have different meanings for different people, one thing is undeniable: whichever way you slice it, fruit and veggies are very good for you. So eat up.
![The Conversation](https://counter.theconversation.edu.au/content/62099/count.gif)
Gregory Moore does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond the academic appointment above.
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2016 Wildlife Photographer of the Year finalists
From a curious fox to a hungry hornbill, these stunning scenes represent some of the world’s best nature photography
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