Showing posts with label Purple Milkweed. Show all posts
Showing posts with label Purple Milkweed. Show all posts

Sunday, 3 July 2016

Milkweeds and Monarchs

Milkweeds are nicely coming into bloom these last couple of weeks. There are nine species of milkweed in Ontario, some of which are quite rare. Some of the more common ones include the bright orange Butterfly Milkweed (Asclepias tuberosa) .

 One that is not uncommon, but many people would not notice it, is the Poke Milkweed (Asclepias exaltata), which grows in small numbers along the edges of lush deciduous forests.
 An uncommon species more or less restricted to prairies and savannas is Purple Milkweed (Asclepias purpurascens).
Of course the most common one is, as its name suggests, Common Milkweed (Asclepias syriaca). It is the most aromatic, in my opinion. Fortunately milkweeds were removed from Ontario's Noxious Weed List a little more than a year ago, and that will greatly benefit the declining Monarch butterfly population.

I tried to count the number of Common Milkweeds in my yard....some of which I planted several years ago, and others that just came up on their own. I counted approximately 105 plants, the majority of which will likely flower this year.
More pollinators are found on Common Milkweed than the others, presumably due to their more aromatic nature. Bees, ants, beetles, butterflies all can be found, sometimes all at the same time. But milkweeds can also be traps, as certain sized insects may get their leg trapped in the flower parts and cannot escape. The bee in this next image is one of several bees I have noticed dangling from the flowers in my yard.


Adult Monarchs have not been plentiful yet this year. In fact I have not seen any in our yard, but clearly at least one has been there.


About a week ago, we spied at least 5 good-sized larvae on various milkweeds in our yard, and the neighbours had a couple on theirs as well. They were all about the same size, so it is likely they all were from the successful efforts of a single female Monarch passing through and laying eggs a few weeks earlier.
 A couple of the milkweeds had two larvae feeding on the leaves.
A few days later, they all disappeared. I expect they all left the milkweed plants to find a safe place elsewhere, in order to make their chrysalis where they will develop into an adult.

Go Monarchs!

Friday, 22 January 2016

Pelee Island: Part II

The previous post gave a bit of an introduction to Pelee Island, with an emphasis on the southern most part of this southern most inhabited part of Canada. Just to add a bit to where I left off, Fish Point Provincial Nature Reserve is home to another very rare shrub. It is Dwarf Hackberry (Celtis tenuifolia).
Dwarf Hackberry
 A species that is actually not all that common in southwestern Ontario, but is always a highlight when you find it, is Cardinal Flower (Lobelia cardinalis), found in the wet woods of Fish Point.
Cardinal Flower
Still at the south end of the island, but farther east is the famed Mill Point area. It is named because at the time of settlement, it was covered with trees, mostly Red Cedar and oaks, and a saw mill was there. Since Pelee Island is largely underlain by limestone, and sometimes is very close to the surface, it isn't always able to be farmed. This area was often used as pasture for livestock, although some of the more optimistic farmers in the past attempted to farm small parts of it.....quite unsuccessfully, I might add. Even years after it was abandoned, it was slow to recover into any type of forest, as the rocky soil and drought-like conditions during the growing season made it a very tough environment to live in. In places there is bare rock exposed right at the surface, and these conditions fit what some ecologists would call an 'alvar' or 'glade'. Thankfully much of this area has been acquired by Ontario Nature (formerly Federation of Ontario Naturalists), Essex Region Conservation Authority and Nature Conservancy of Canada. Collectively this natural area is referred to as Stone Road Alvar. As an example of how tough it was for plants to survive on such a landscape, I remember when we were doing some inventory work in the late 1980s, we came across a hardy oak that was about 120 years old, but measured only about 30 cm in diameter. During the driest part of a dry year, the alvar can look almost dead even in the middle of summer. However there is usually some colour.

 Along the savanna edges, one can find plants that are also found on prairies or savannas, such as Purple Milkweed (Asclepias purpurascens).
Purple Milkweed

And Michigan Lily (Lilium michiganense).

On extremely rare occasion, such as a few months after a particularly hot fire, followed by a good amount of rainfall, the alvar can look quite lush. This next image is an example. There had been an extremely hot fire in the late summer one year, and I remember getting calls at my office from quite outraged people complaining that the alvar had been severely damaged......burned to a crisp. After listening to their concerns and discussing the role of fire, I suggested that they wait until the next growing season to see if their initial assessment was accurate. As it turned out, over the winter and early spring there was a bit more precipitation than normal, and by late June it was looking as lush and fresh as I have ever seen it. It was fresh and colourful looking in every direction!
Nodding Wild Onion, Gray-headed Coneflower and Whorled Milkweed following a fire
 Species At Risk such as Climbing Prairie Rose (Rosa setigera) thrive on the alvar and woodland edges.
Climbing Prairie Rose
 One of my favourites is the delicate little Miami Mist (Phacelia purshii)
Miami Mist
 Gray-headed Coneflower can be abundant.
Sign along the trail of Stone Road Alvar with Gray-headed Coneflower dominating the scene
A real rarity on the alvar, and the first time it had been discovered in Canada, is the diminutive Oval Ladies'-tresses (Spiranthes ovalis). It has since been found elsewhere on Pelee Island as well as on Walpole Island at the north end of Lake St. Clair. It is quite small, as is shown at the left of this next image, especially when compared to its larger relative the Great Plain's Ladies'-tresses on the right.

Yellow-breasted Chat, if it is likely to nest anywhere in Ontario, will nest in the vicinity of Stone Road Alvar with some regularity.
At the north end of Stone Road Alvar is a more wooded section, with some lush ground vegetation. Highlights here include Rue Anemone (Anemonella thalictroides), in both a white and pinkish colour form, as well as the White Dog-toothed Violet a.k.a White Trout Lily (Erythronium albidum), among others.



As mentioned, much of Pelee Island is underlain by limestone bedrock, and nowhere is that more apparent than along some of the shorelines. At times the shoreline and adjacent lake can look quite placid.
At other times, the western basin of Lake Erie can get whipped up fairly quickly, and the view of the shoreline is considerably more foreboding.
 At one point along the shoreline near Stone Road Alvar, one can see definite linear grooves in the bedrock. These are the result of glacial action, as the ice of the glaciers pushed rock (presumably granitic rock) which is harder than the softer, sedimentary limestone to gouge out these shallow grooves. Glacial grooves are evident on other Erie Islands as well, and indicate what direction the glacial ice was moving in.
 This next image shows Mill Point at a more peaceful time. The occasion is about 11 p.m. during the rising of a full moon. There was some wave action, but the 8 second exposure resulted in quite a peaceful look.
At the north end of Pelee Island, there are other interesting things to take in. At the northwest corner is Sheridan Point. It is about the highest point of the island, albeit still only 4-5 metres above average lake level. It is the location of Vin Villa. Due to the islands climate, it is a great location for growing grapes, and wineries here date back to 1866. The first winery operation occurred at this location, but after a period of time, declined in importance. The structure remained intact but was eventually burned until only a shell of its former self remained.
Vin Villa ruins

In recent years, grape growing has gained popularity once more, and is a main economic commodity produced on the island. Pelee Island wines are well known amongst vintners and connoisseurs.  This particular property was purchased in recent years by the son of a former Pelee Island resident, and who is now in the process of restoring this historic site.

A residence in much better condition, and which dates back to 1894, is this one also on a portion of Sheridan Point. It was built from limestone extracted from a nearby quarry, typical of several early buildings on the island.
Pelee Island is also well known for pheasant hunting. It was established during the first part of the previous century, to provide economic benefits to the community. A pheasant farm occurs on the island, where the birds are raised. They are released a few weeks before the autumn hunt, where several hundred hunters would arrive looking to traipse across fields, fencerows and old fields along with their dogs, to flush out their quarry. There are a few hunting camps/lodges on the island, but many hunters would stay at the local B&Bs, hotels or even rent rooms from island residents for the hunt. It was a significant source of income for this island community.
 Some pheasants seem to be smarter than others.
A few pheasants evade the dogs and those that are gunning for them, so there is a naturally breeding population on the island.

Wild Turkeys were released on the island about 15 or so years ago. It is not absolutely certain whether they were there naturally before or not, but they are now! The population has done quite well with the abundance of food and the mild weather, so now there is an open season for them. This next photo was taken shortly after the hunting season ended, and they are still exceptionally wary.
At the northeast corner of the island is another sand spit, although not as distinct as the Fish Point one. This is Lighthouse Point, and is another provincial nature reserve class of provincial park. There is some sandy beach and an enclosed wetland marsh (depending on the lake levels) which is separated by a sandy barrier beach.

The wetland is a prime area for visiting naturalists to explore to look for the area's flora and fauna. Great Egrets nest on nearby uninhabited islands, and find it convenient to fly to Pelee Island for food, both during the nesting season as well as after they have left their heronries.
Great Egret
 Caspian Terns are regular visitors.
Caspian Tern

Snapping Turtle
The rarest bird species I have seen was a little more than a decade ago, when one of my colleagues who was doing some snake research on the island noted what she thought were Wood Storks. She wasn't a birder, per se, but knew they were something different, and so got the word out (thanks again, Deb!). Numerous birders made the trek to Pelee Island to add them to their Ontario list. Unfortunately I got to see them, but did not get photos.

Surprisingly, there are birds that don't normally like to fly over water that appear on the island quite regularly. Raptors which rely mostly on thermals, that is the rising air as a result of the sun warming up the land, seldom fly over water but prefer to take the longer route along the lake shore. Nonetheless, some do attempt the crossing as they 'hop, skip and jump', figuratively speaking, of course, across the chain of islands from Ohio to Ontario. Pelee Island is the largest of the chain, and is situated at about the half way point, so birds crossing this chain will often stop in.

Turkey Vultures are regularly seen in small numbers. This group is resting at the end of the day, on the tops of gravel piles in the local quarry, where they are fairly safe from predators.
They do clean up dead animals wherever they can find them....quite often along the road side. I posted this image awhile ago on another site, and one person commented "Great...take-out on the fly!" to which I responded "I think there are flies on the take-out in this case!"
Turkey Vulture feeding on road-killed raccoon
At the base of the Lighthouse Point Nature Reserve is savanna dominated by Blue Ash and Chinquapin Oak, which is a wonderful vegetation community to explore. Blue Ash is extremely limited in its Canadian range, and so to have it as a co-dominant is really special.

A lighthouse was erected in the early 1830s at the very north end of this nature reserve....hence the name.....due to the numerous ships passing through what is known as the Pelee Passage, a relatively shallow and narrow corridor between Pelee Island and Point Pelee through which ships plying the Great Lakes upstream of Lake Erie must pass. The western basin of Lake Erie is shallow, and can get roiled in a hurry. As a result, there have been hundreds of ships wrecked in the shallow waters especially around some of the Erie Islands. The lighthouse has helped many ship's captains from becoming victims of the lake's idiosyncrasies. This lighthouse was replaced by a more modern, automated lighthouse out in the lake, and so over the years all of the wooden parts of this structure disappeared. I took this photo at sunrise in the late 1980s.

History is a popular thing in the Pelee Island community, and a group of residents decided it was time to restore this lighthouse to a bit of its former glory. A committee was established to raise funds to "Re-light the Lighthouse" and after much effort, it was restored to appear much as it would have when it was functional, complete with a light that is still lit on special occasion to celebrate its history.

Stay tuned for Pelee Island: Part III which will deal with some of the herps (a.k.a. reptiles and amphibians), some of the research, and some of the challenges in dealing with many species at risk in a small community.












Saturday, 28 June 2014

Visiting Western Chatham-Kent

I had had it in mind for awhile to pay a visit to a couple of places that don't get much attention. And I thought that provincial parks would be extra busy on this sunny, hot, holiday weekend. So off I headed to a piece of crown land near Dealtown that was acquired a couple of decades ago, and was turned from farmland into a tallgrass prairie nursery. It has been burned in the past, but not for several years, so it is getting quite shrubby. Given the natural expansion of these prairie plants, it has become more of a prairie patch than a nursery consisting of rows upon rows of various prairie species.

My intent was to see if some good grassland birds were making use of this site. A few years ago I had two Henslow's Sparrows there, and on more than one occasion, Dickcissels have nested. Since Dickcissels seem to have made a spot near Wheatley their home in the last couple of years, I thought maybe one or more would also be here.

I ventured onto the property with only one lens: my 500mm lens with 1.4X extender, making it an equivalent of 700mm. I saw numerous butterflies and dragonflies, but they were hard to shoot with this lens combination, so I decided to concentrate on my feathered avian quarry. But there were various skippers, Northern Crescents, Little Wood Satyrs, Viceroy and others which I didn't pursue. And a diversity of dragonflies as well, especially lots of Saddlebags. Maybe next time I will leave the big telephoto at the car and take something more amenable to photographing lepidoptera and odonates.

Given that much of the site is getting shrubbier as the years go by, the bird species have adjusted as well. Alas, I didn't catch up to a Dickcissel or Henslow's Sparrow. But there were lots of Field Sparrows, Song Sparrows, an occasional Savannah Sparrow, Yellow Warblers, Common Yellowthroats, Gray Catbirds, Brown Thrashers, a couple of Eastern Meadowlarks, Northern Cardinals, American Robins, American Goldfinches, a few Cedar Waxwings and of course numerous Red-winged Blackbirds.

Northern Cardinal


American Goldfinch


Cedar Waxwing

Gray Catbird

Eastern Meadowlark
Yellow Warbler
I also scared up three deer, including a fawn probably no more than a month old, but which was able to scoot away so fast that there was no possible way for a photo. One of the does was a bit more cooperative, and at least stood tall enough to be able to see it through the grassy vegetation.



Tallgrass prairie plants are very attractive, at least a lot of them are. Some of them are extremely rare as well. It may come as a surprise to some that Ontario is indeed a prairie province, although it wasn't as major a vegetation type here as it was on those other prairie provinces. However the botanical diversity of the prairies in Ontario exceed those of the traditional prairie provinces. Some of the more colourful species in flower today included:
Purple Milkweed

Foxglove Beard-tongue

Butterfly Milkweed

Ohio Spiderwort

Another species that occurs on prairies but also in old wet fields is Ragged-fringed Orchid. Yes we have wild orchids in Ontario...more than 60 species in fact, and some of them are extremely colourful. I will be doing a post or two in the future about some of the orchids of Ontario.

Ragged-fringed Orchid

After leaving this prairie site, with good intentions to come back soon, I headed for the Tilbury area, and specifically the sewage lagoons. Sewage lagoons are not everyone's idea of a good place to spend time, but the wildlife like it and therefore so do biologists and naturalists. This one is technically in Essex County, but it is operated by the municipality of C-K for the Town of Tilbury. And it even has a welcome sign, so how could I not go!


Although birders are welcome, the water levels are such that there isn't a great diversity of birds at the moment. On some occasions it has been very good for shorebirds as well as waterfowl and wading birds. Today the shorebirds were completely absent, except for a single Spotted Sandpiper and a couple of Killdeer. Waterfowl were limited to Canada Geese, Mallards and Wood Ducks. As common as Double-crested Cormorants are becoming, there were even 3-4 of them in the area. A few wading birds were around, including several Great Blue Herons, Great Egrets and Black-crowned Night-Herons. I also saw an adult Common Moorhen, but as is their usual behaviour, it was quite shy and would not let me get its photo.

Black-crowned Night-Heron

Great Egret

For some reason the egret thought it was hidden behind these old stalks of Phragmites, as it would not come out into the open. Hmmmm...I wonder what else goes on in an egret's mind......

 OK,  Red-winged Blackbirds aren't very exciting in general, but they are attractive in their own way and I just had to take this photo when the opportunity came by.

Since I was now a bit northwest of Tilbury, before striking out for home in Chatham I thought I would check out Lighthouse Cove, at the mouth of the Thames River just across the county line into Essex. As expected on a sunny holiday weekend, it was busy and so were the nearby waters of Lake St. Clair. Boats were everywhere, constantly coming and going. I suspect the serious fishermen were well beyond view from shore.


The boat launch area was fairly crowded. However an enterprising photographer no doubt employed by an advertising agency found enough space to park his brand new shiny red Cadillac next to the water, pull out three Nikon cameras with lenses, and get his young female model with long black hair and bright red lipstick and in a striking black dress to lean up against the car to showcase its allure.

I almost took a photo of this, but instead thought it was time to leave.