Showing posts with label Rattlesnake Root. Show all posts
Showing posts with label Rattlesnake Root. Show all posts

Tuesday, 22 September 2015

Summer ends.......autumn begins

Summer is ending, but it is still a magical time of year with so much to see. The weather is more pleasant for getting out to explore, in my opinion.

The brisk winds ranging mostly from the northeast to southeast these last few days made it enticing to get to the east beach of Rondeau, hoping that some of those rare waterbirds show up, such as jaegers or Sabine's Gull. So I spent a bit of time hanging out at the Dog Beach Access at Rondeau scanning the lake. With all of the wind and wave action, even the gulls weren't spending much time on the water. There were at least 3000 gulls within view, mostly Ring-bills and Bonaparte's with a handful of Herring and Great Black-backed mixed in. A few Common Terns and Caspian Terns were there as well.

A small portion of the mass of gulls
 One gull, the one in the centre of the next image, looked a bit out of place here, and it was surprisingly aggressive towards the nearby Bonaparte's Gulls from time to time.
 After scratching my head for awhile, I am convinced it is a Bonaparte's Gull in a plumage that I don't often see here at this time of year. It appears to be a bird passing from the juvenile to first winter plumage.....the black nape was particularly noticeable, but the size, shape, black wing bar, pink legs and dark bill all point to a young Bony. The bill is actually a bit lighter towards the base, but isn't all that evident in this photo due to back lighting. In looking at the other Bonies in the group and elsewhere, I did not see another one quite like this.

It is quite possible that there was a rarity or two tucked away in the mass of gulls, but they were so jam-packed together and the light was a bit harsh, I just couldn't pick out anything rare in the group.

Late summer wildflowers are always a good place to find some action. New England Asters don't get a lot of respect by us humans, since they are so abundant, even weedy at times. But they are a bonanza for many insects. Pollinators love them!
New England Aster
Peck's Skippers are still around in good numbers.

Goldenrods also are favourites with many pollinators. This member of the Paper Wasp group is large and easy to photograph. When they are nectaring on flowers, I find they are more interested in the flower than they are with a camera, macro lens and flash right up close.....but I try and remember to move slowly.
Paper Wasp (Polites sp)
 Along woodland edges and opening, one can find Rattlesnake Root, a.k.a. Smooth White Lettuce (Prenanthes alba), another member of the Compositae family.

 In the grassy areas, one can find a fragrant orchid, the Great Plain's Ladies'-tresses (Spiranthes magnicamporum). It is one of the last orchids to bloom each year, and some are just starting to peak.
They have a scent somewhere between vanilla and hot plastic! The arrangement of flowers, as shown in this next image from the top, is distinctive.
Plants show individual characteristics, as this next Great Plain's Ladies'-tresses was taken just a few metres away on the same day, but it is clearly about a week farther ahead in its blooming as the lowest flowers are already brown and even the upper most ones are showing signs of being past their best.

Milkweeds are always worthwhile to check for invertebrate activity. There are still Monarch caterpillars munching away. I hope this one has a chance to make it to Mexico!

And this looks like a Red-banded Leafhopper convention....or is it an example of the three-on-three rules the NHL is going to use in games that go into overtime beginning in 2015?


These developing pods of Purple Milkweed below are prime spots for a gathering of the Large Milkweed Bug clan. There are various ages represented here, and on the lower left of the left side pod, one can see a few of the remaining exoskeletons of bugs that have recently shed. On cool mornings, one can see tightly grouped critters all trying to take advantage of the morning sun.

Berries are always important sources of food for migrating birds, especially thrushes, thrashers, catbirds and warblers. These brightly coloured berries of the Winterberry (Ilex verticillata) stand out against the dark greenery...no doubt they will soon be consumed. It is an uncommon plant at Rondeau.
Winterberry

While investigating a small patch of trees and shrubs to find out what bird was making some chip notes, I got side-tracked by this brightly coloured Eastern Gray Treefrog resting on a leaf of a Green Ash.
 As you can see, it really isn't gray at all in this case. This species has the ability to change its colour to blend in with its surroundings, although it usually takes several hours to change completely.
Eastern Gray Treefrog
Nearby, in a puddle along the parking area, was this Green Frog. Note the partial tire track right in front of it.....I guess he likes to live dangerously! Fortunately there isn't a lot of vehicle traffic during the week this time of year.

Green Frog

A day or two before, I was in a large natural area in north Lambton. One of the highlights of the trip was to discover a new location for a rare gentian: Stiff Gentian (Gentiana quinquefolia). It is S2, meaning there are between 6-20 locations known for it in Ontario. However even some of those populations have disappeared, so it is an increasingly rare species, although not legislatively protected yet. I have only seen this in the past on the prairies of Walpole Island First Nation.
Stiff Gentian
Even at known locations, its numbers may vary from year to year, as it is a biennial species.

On the return from northern Lambton, I stopped at a section of the Sydenham River passing through northern Chatham-Kent. Although the sun was low, there were still a few odes moving about, including this beautiful American Rubyspot.
I got a quick glimpse of a Smoky Rubyspot, as well as a large dragonfly cruising along the bank, but the latter never stopped long enough for me to get a good look at it.

And so summer is about over, but a new season begins.
Chenal Ecarte sunset












Thursday, 13 August 2015

Lions and tigers and bears....in Rondeau...oh my....

...and rattlesnakes too...OH MY!!

With all due respect to Dorothy on the Wizard of Oz, this is not Kansas, and here at Rondeau there are lions and tigers and bears also....and rattlesnakes, too!

Now before you get all worried about fearsome and dangerous wildlife at this nationally significant provincial park....do not worry. These lions, tigers, bears and rattlesnakes are not the dangerous type at all...at least not to anyone reading this.

Let me explain.....

First, the lions: Have you ever been walking along the beach, just in from the edge of the grassy vegetation, and noticed some conical, round depressions in the sand?

A little closer examination, and you can see that although it isn't deep, it is more or less uniform around this inverted cone.

Now imagine if you were a small insect, such as an ant, crawling across the sand, and tumbled down the edge of this pit. Sand, especially the relatively coarse sand that occurs along the beaches of Rondeau, is not easy to climb out of....for every step or two you try to take in climbing up the edges, there is at least one step back, and some of the sand tumbles down to the bottom as well. The interesting part is that just below the bottom of this pit lies the 'lion'.....an ant-lion to be specific. It is the immature stage of various insects in the lacewing group. The ant-lion waits at the bottom of the pit with rather menacing looking sickle-like jaws. When an ant tumbles into the pit, it is immediately grabbed by the ant-lion, or if it starts to climb out, the ant-lion will throw sand up causing the ant to tumble down to the bottom. The sickle-like jaws are hollow and pierce the insect, allowing the predaceous ant-lion to suck the juices out. At that point there is only the exoskeleton of the ant remaining, which is then tossed out of the pit. That being accomplished, the ant-lion waits for its next victim.

For a bit of amusement, admittedly to the chagrin of the ant-lion, find one of these pits and take a small piece of grass and gently tickle the edge of the pit, causing some grains of sand to tumble to the bottom. Then watch for the ant-lion's response!

Tigers: there are at least a couple of types of 'tigers' which occur at Rondeau, both of which are quite striking. The Eastern Tiger Swallowtail is a large beautiful butterfly which can be seen flitting around woodland edges and open areas from May through most of the summer.
Eastern Tiger Swallowtail
 The Six-spotted Tiger Beetle, an iridescent beauty if you get a close look and which often has either more or fewer than six spots, can be seen along the sunnier sections of pathways and trails in the woodland. There are many kinds of tiger beetles, but the Six-spotted is by far Rondeau's most noticeable one, especially during the first part of the summer.
Six-spotted Tiger Beetle

Bears: At one time there were real live Black Bears roaming about the pristine woodlands of southern Ontario, including Rondeau. However the bears that occur at Rondeau these days are much, much smaller. Almost everyone would be familiar with the Woolly Bear caterpillar. It is the larval stage of the Isabella Tiger Moth, a small and rather drab moth. Folk lore has it that one can tell how severe the oncoming winter might be based on the width of the orange-brown band of bristles in the middle of the bear, but apparently there is no solid documentation that it is true.


Rattlesnakes: every once in awhile park staff get reports of a rattlesnake sighting in the park. However those sightings invariably are due to the occurrence of an Eastern Fox Snake or Eastern Hog-nosed Snake, both of which will vibrate their tails when disturbed and do a convincing imitation of a rattler. There are no rattlesnake snakes at Rondeau. But there are rattlesnakes......at least three kinds.

The first one is one of the Rattlesnake Ferns (Botrychium virginianum), also known as the grape ferns. They are fairly abundant in the rich soils of Rondeau's woodlands, and can be seen along several of the trails.


Another 'rattlesnake' which is typically visible in August is the Rattlesnake Root, also known as White Lettuce (Prenanthes alba). There are three species of Rattlesnake Root, but the one illustrated here is the most common and is found along woodland paths such as South Point or Harrison trails.

The third kind of 'rattlesnake' I will feature is the Dwarf Rattlesnake Plantain (Goodyera pubescens). This is actually one of the nineteen species of orchids that have been found at Rondeau. It is easily identified by its distinctly patterned leaves, as shown in the images below (both of which have been scanned from slides in the park's files). Alas, the chances of seeing this orchid at Rondeau, even though it typically flowers in August, are next to none. I have seen four separate populations of it in the park. Two sites are very difficult to get to and I haven't been to those sites in many years. At the other two sites, one being right along Tuliptree Trail, they seem to have gone missing for the time being. The entire sandspit of Rondeau is of course heavily influenced by the water levels of Lake Erie, and this year they are quite high. There may be other factors at work, but suffice to say that I have not been able to find evidence of this rattlesnake at either site so far this year.
leaves of Downy Rattlesnake Plantain

unopened flowers of Downy Rattlesnake Plantain
So there you have it....the lions, tigers, bears and rattlesnakes of Rondeau!