Wetlands are highly biodiverse ecosystems that provide many important functions. They act as filters for pollutants in waterways before reaching rivers and oceans, making them like the "kidneys" of water systems. Wetlands support a wide variety of plants and animals, including as habitat and refuges. However, wetlands are often overlooked and considered "wastelands" despite their significance. Activities during World Wetlands Week aim to increase awareness of wetlands and encourage their protection.

1. Wetlands - The Kidneys of our Waterways
Wetlands – bet you didn’t know that, besides forests, they are the most biodiverse places across this
wide land, home to a startling array of flora and fauna that is often not found anywhere else. Oh,
and here’s another bit of trivia for you – the week starting January 29th 2011 is World Wetlands
Week, so it’s time to wise up to the wonderous world of wetlands!
So, what is a wetland? Essentially, wetlands are classified as: an area of land either permanently or
temporarily covered with water or with waterlogged sediments which supports plant and animal
communities. They can include things like
billabongs, lakes, lagoonss
swamps and marshess
saltmarshes, mudflatss
mangroves, coral reefss
bogs, fens, and peatlands.s
Australia has a bunch of really amazing wetlands, both natural and artificial, and, as a co-worker of
mine put it, they are “the kidneys of our waterways”. You see, wetlands act as important filters for
all manner of pollutants such as sediments, nutrients, organic and inorganic matter and bacteria
before they reach our river systems and ocean.
Wetlands are vitally important elements in waterway and river system health, yet they are so often
overlooked. Instead of looking at these places as “boggy wastelands”, it’s important to remember
what our Australian wetlands actually do. I reckon wetlands are a bit like the ultimate (but
underappreciated) staff member – they get a bit forgotten, but we couldn’t do without them. So
amazing are these beautiful wild spaces that they are responsible for all this:
They are highly productive ecosystems, and are able to capture energy and provide food for manys
animals.
They provide important refuges for wildlife in times of drought.s
They are naturally beautiful places and provide opportunities for recreation activities such ass
boating, swimming, bushwalking and bird watching.
They provide a natural water balance in the landscape and help to provide protection againsts
floods.
They have a role in providing water quality protection in the catchment by filtering pollutants suchs
as sediments, nutrients, organic and inorganic matter and bacteria.
They support a wide variety of flora (plants) and fauna (animals) and form different habitats ands
ecosystems.
They provide nursery areas for fish, and breeding grounds for wildlife, particularly waterbirds.s
Wetlands provide vital habitat for some species of threatened fauna (animals).s
They provide refuge for migratory waterbirds that breed in the northern hemisphere in countriess
such as China and Siberia. Thousands of migratory waterbirds inhabit Australian wetlands each
year.

2. Many wetlands are of cultural significance to aboriginal people.s
They provide opportunities for scientific research and are a source of education for the community.s
Australia has some 65 Ramsar wetlands, meaning these are internationally recognised for their
importance, bio-diversity, or their uniqueness. In addition to this, there are over 900 significant and
important wetlands, many of them closer to you than you may
realise.
So what can we do, as gardeners, to look after our wetlands, during World Wetland Week and
beyond? Well, for a start, we can think really carefully about what we are doing in our own
backyards, and how that might impact these precious places. Did you know that one of the biggest
threats to the health and biodiversity of wetlands is weeds, many of which originate in our own
backyards, ponds and aquariums?
Dumped garden waste, seeds moved by wind, water and critter, aquatic plants washed down drains
– all of these spell serious trouble for wetlands. My tip? Know what plants cause an issue, or have
the potential to cause issues, in your area, and avoid planting them. If you already have these plants
in place, manage them to prevent their spread. Remove spent flower heads before they form seed,
dispose of garden waste in a compost or green waste bin, and don’t allow your ponds to overflow
and spread potentially harmful aquatic plants.
Another wetland-saving winner is to minimise run-off from your property. Many of us utilise
recycled and greywater across our gardens, which is a fantastic way of reducing our household
water consumption. However, if this stuff is allowed to leave our property and enter our wetland
and river systems, we are all in big strife. The increase nutrient loads in this type of water, coupled
with the unknown quantity of chemicals, cleaners, detergents and the like can spell disaster for
wetland ecosystems. Algal blooms are an obvious issue, but their are numerous other water, plant
and soil health issues that can arise if our grey gets into a waterway.
Regardless of where you live, it’s important to remember that what you do in your backyard can
have an impact far beyond your fence line. And while we are on that point, why not get to know
what’s happening in wetlands beyond your fence, and get involved in the myriad of activities
happening in your neck of the woods this World Wetland Week? Check out the link and get involved
– you will soon realise what a wonderful wange of wetlands we have!
F i n d o u t w h a t ’ s h a p p e n i n g i n y o u r s t a t e :
www.environment.gov.au/water/topics/wetlands/world-wetlands-day/index.html