Feeds:
Posts
Comments

Posts Tagged ‘wetland destruction’

swamp1

One of the routes I can take into town leads through a wetland. I love this attractive place. On one side of the road, cattails line the ditch and it is difficult to see inland. In winter it becomes obvious that this marsh is home to a host of muskrats, whose winter shelters become snow-covered igloos. You can see pictures of Muskratville here.

swamp2

On the other side of the road, the wetland is more open and swampy. Of course, in a sane world, there would be no road running through the middle of a wetland. How ridiculous! But there is, and on one recent sunny day I stopped to help a small turtle cross to the other side. He was stopped in the middle of the road, inviting disaster. It was a smallish painted turtle. When I picked him up, he quickly withdrew his legs and head into his colourful shell. I carried him over to the shore towards which he was headed and gently placed him in the water. He rapidly reemerged and swiftly sped away, disappearing into the vegetation. Turtles may be slow on land, but they can get around just fine under water.

swamp3

It was a very pleasant day, and I took a few minutes to hunker down at the water edge and appreciate the view. It’s not too busy a road, and it was quiet and serene there. Nature can’t often be appreciated at the speed of a video game. It takes time to sit back and let the natural world reveal itself. As I sat there, a large darner dashed by. These big dragonflies are almost impossible to photograph. They move very fast and rarely pause. I noticed a frog watching me though.

swamp5

He doesn’t know how lucky he is. Sure, there’s a road right beside his home. No doubt road salt and oil run off the road into his habitat. But at least he has a pond. That’s more than many former wetland denizens can claim. A Ducks Unlimited Canada report, released in October 2010, states that:

Seventy-two per cent of southern Ontario’s large inland wetlands have been lost or converted to other land uses and this loss continues at an alarming rate. The decline to the wetland base has been most drastic in southwestern Ontario, parts of eastern Ontario, Niagara and the greater Toronto area, where in some regions the loss is greater than 90 per cent.

By-and-by a meadowhawk landed nearby. Meadowhawk species are difficult for the amateur to differentiate, but it may be a Cherry-faced Meadowhawk (genus Sympetrum). A moment later, I noticed a golden female dragonfly, possibly of the same species.

swamp6

Few wetland losses have been more egregious than the damage done to the South March Highlands by an extension of Terry Fox Drive in Kanata on the fringe of the City of Ottawa. The South March Highlands are a Provincially Significant Life Science Area and contain a Provincially Significant Wetland Complex. The Highlands are home to the densest array of biodiversity in the Ottawa area. Eighteen known Species At Risk reside here, including the threatened Blanding’s Turtle (Emydoidea blandingii).

swamp7

Every level of government participated in this wanton act of environmental destruction. The Harper Conservatives, renowned for their monumental disregard for all things linked to the environment, contributed cash through their Infrastructure Funding project. In response to protests by concerned citizens, the city made a token gesture of concern, and included plans for specially designed fencing and walls to prevent wildlife access to the roadway and work zone, and culverts to provide access to lands within the urban boundary.

swamp4

The road will connect the north and south ends of Kanata, making the commute a little easier on Kanata north residents. “This is very good news for us,” said Karey Mulcaster, a resident of rural Kanata. “This road is definitely going to facilitate travel for Kanata north people,” said Mulcaster. “Can you tell we’re anxious for it to be opened?” (From Ottawa River Keeper site)

There is a wonderful video about the South March Highlands on Youtube. It is beautifully filmed and well worth viewing.

Read Full Post »

The trail now follows the edge of the river, and a sign about dragonflies and damselflies, the odonates, suggests that there will be lots to see in the summer months. As noted in the sign, odonates are threatened, as are many, many species, by the loss of suitable habitat. The polluting of waterways and draining of wetlands take a huge toll on wildlife. Two-thirds of Ontario’s wetlands have been lost or severely damaged and many surviving wetlands are threatened.

The highpoint of the hike, both literally and figuratively, was the marsh lookout. Sturdily constructed, it offers a beautiful view out over the Tay river and marsh.

Even at this time of year, you can see signs of life, as tracks crisscross the ice surface. It is always wonderful to see a large marsh or swamp. Wetlands are vitally important, filtering out sediment and pollutants, cleaning the water we all depend on, and providing habitat for a wide range of plants and animals.

A sign on the lookout highlights Black Terns (Chlidonias niger) and Least Bittern (Ixobrychus exilis). Again, it isn’t clear whether these species nest at this location or they just hope they will! The Black Tern breeds mainly on the prairies of North America, but its range extends east into western Quebec. During breeding season, it uses freshwater marshes, but from October to April it winters by the sea, mostly on the Pacific and Caribbean coasts of Central and northern South America. The Least Bittern was considered abundant in large southern Ontario marshes a century ago. It’s decline has matched the destruction of its habitat as marshes are drained.

Jebb’s Creek, a tributary of the Tay that winds through the reserve, provides important spawning and nursery habitat for fish. With the mild weather, the ice had melted back and revealed some open water.

Other wetland residents who have suffered mightily for the sake of “progress” are Ontario’s turtles. There are eight species of turtles in Ontario. The Painted Turtle (Chrysemys picta marginata) is the most common and widespread species. Snapping Turtles (Chelydra serpentina) are still present in significant numbers but are vulnerable in some areas where populations were once stronger. The remaining 6 species (Blanding’s, Musk or Stinkpot, Map, Spotted, Spiny Softshell, and Wood) are all in trouble, listed as threatened or endangered. Threats to turtles include the loss of wetland habitat, road mortality, pollution, collection as pets, and predation. These pressures may soon overwhelm these important wetland ecosystem members.

Amongst the cattails of the creek and wetland, several nest boxes for Wood Ducks (Aix sponsa) could be seen. Wood ducks are thought by many to be the most beautiful native ducks in North America. [For some lovely photos of a wood duck pair, visit Evening Stroll at Xenogere.] They nest in the cavities of trees close to water, but a good cavity can be hard to find. Conservationists have sought to help the wood duck population by providing nesting boxes in wetlands. Some of the Reserve’s boxes were the standard wooden boxes, but there was also a plastic style, which I haven’t seen before. In checking on them via the internet, I found that they have pros and cons. The plastic boxes are sturdy and can be made from recycled plastic, but it seems that at least one study has found that the ducks are traditionalists. This study by H.W. Heusmann and T. Early suggests that wooden nest boxes are preferred, but the study is dated 1988, and perhaps newer plastic boxes have a more appealing design.

Farther along the trail, we noticed these wood chips on the snow, causing us to look up for the source.

A branch has been stripped of its bark. At first, we thought it was the work of a porcupine, but on closer examination of the branch with her binoculars, Birdgirl concluded a woodpecker was the culprit.

The last section of the trail meanders along the edge of open pastureland. The field was dotted with milkweed. I was surprised that many of the pods still contained their downy seed packages.

Back at the parking lot, we looked over the Reserve’s management initiatives as outlined on their visitor information sign. The Reserve was established in 1972 and their comments on encouraging the Canada geese population suggest this sign was written some time ago. These days, you are more likely to hear of efforts to discourage the now-numerous geese.

In all, it was a pleasant, easy hike for a winter’s afternoon. It will be nice to revisit the trail in the spring when the wetland sleepers reawaken.

Read Full Post »

Follow

Get every new post delivered to your Inbox.

Join 104 other followers