Pest Monitoring is Another Important Task

Pest Monitoring is Another Important Task

As well as temperature and RH, the Conservator also conducts pest monitoring. At the Manitoba Museum, we mostly check for insects. Sticky traps in storage and laboratory areas are checked; if a large number of insects are seen, we investigate, looking in the surrounding area more thoroughly. We often find one or two insects on the trap; one or two doesn’t indicate a problem, but is considered a normal condition. And not every insect is one that will feed on our collections.

Museum pests can include mice and squirrels, as well as insects. Although we have had a few problems with mice in the past, our current pest monitoring program focuses on insects.

A small folded triangle shaped pest trap.

Individual traps are place in corners and along walls, and checked monthly.

A sheet of three pest traps before they've been folded.

Sheets of sticky traps are available from pest extermination companies.

As part of their training, Conservators learn about different aspects of the museum environment – temperature, RH, light, atmospheric pollutants – and how these can interact with objects to cause damage and deterioration. Conservators also learn about museum pests, and must become familiar with the common pests they will encounter. We keep examples of insects found in the Museum, for reference and comparison.

A museum storage drawer containing a series of pinned insects and labels.

Examples of insects found at The Manitoba Museum.

Close-up on several pinned insects and labels in a storage case.

Insects are identified as harmless or harmful to the collections.

Jupiter and Mercury Visible After Sunset This Week

If you head outside a half-hour after sunset this week, you can spot the largest and smallest* planets in our solar system right next to each other. The giant planet Jupiter is just ending its months-long appearance in the sky, slipping slowly down towards the sun. This week, the tiny planet Mercury is moving upwards from the horizon, putting in a quick appearance before also disappearing into the sun’s glare. On March 14 and 15, the two planets will be about 2 degrees apart – that’s only about the width of four full moons in the sky. They’ll easily fit into the field of view of pretty much any household binoculars.

If you watch them from night to night, you’ll see the clockwork dance of the heavens: Mercury and Jupiter will change their relative positions from night to night, not just due to their own motion but that of our planet as well. The ground you’re standing on is part of this ballet, orbiting the sun along with Mercury and Jupiter.

The best nights to see this are March 14th and 15th, but Mercury should still be visible for another week or so after that. SkyNews Magazine rates this one of the top 11 celestial events this year.

 

*Yes, Mercury is the smallest planet which orbits the Sun; Pluto is still a “dwarf planet” along with Eris and Ceres.

Scott Young

Scott Young

Planetarium Astronomer

Scott is the Planetarium Astronomer at the Manitoba Museum, developing astronomy and science programs. He has been an informal science educator for thirty years, working in the planetarium and science centre field both at The Manitoba Museum and also at the Alice G. Wallace Planetarium in Fitchburg, Massachusetts. Scott is an active amateur astronomer and a past-President of the Royal Astronomical Society of Canada.

The Birch Bark Canoe: Step 1

By Kevin Brownlee, past Curator of Archaeology

 

The best way to understand any skill or expertise is by trying it out. Experimental archaeology attempts to replicate past activities to improve our understanding and interpretation of archaeological material. My interest in experimental archaeology is broad since I am interested in all aspects of past technology, working stone, clay, bone, antler, wood, bark, and hides.

In some cases I am replicating tools that I have recovered or items from the collection in other cases I am learning from Elders and knowledgeable community members on traditional activities. I have learned how to tan hides and make birch bark baskets from the First Nation community members. In other cases I have learned on my own how to make bone and antler tools. Here are a few pictures when I used a replica antler pick (not original) to see if it would chop through lake ice at -30.

An individual wearing full winter wear, kneeling on a snowy outcropping. They hold a long stick, pick type impliment.

Experimental archaeology using antler pick.

An individual kneeling over a whole cut into deep ice, and reaching in with a stick-like tool.

Experimental archaeology chopping hole in ice.

Close up on two mitted hands holding chunks of ice, and the tip of a white antler tool.

Results of chopping hole in lake ice with tool.

This past August my wife Myra and I were taught how to make a birch bark canoe by Jim Jones Jr. and Grant Goltz who are colleagues of ours in Minnesota. Jim Jones Jr. is an Ojibway Archaeologist and member of the Leech Lake Band working for the Minnesota Indian Affairs Council. Grant Goltz is a consulting archaeologist and is a master of many skills and makes traditional First Nation pottery, birch bark canoes, kayaks, furniture, and guitars, to name a few. Grant started making canoes in 1995 when he and his wife Christy taught an archaeology field school. The students learned how to make a canoe during the 6 weeks of the field school and everyone involved gained a better appreciation of this ancient craft. Since then he has made 20 – 30 birch bark canoes. The most famous was 27.5 feet long and was paddled from Portland Oregon to York Factory Manitoba.

Four birchbark canoes laying on braces on a lawn.

Canoes at Grant and Christy’s home.

Two individuals with heads close together seated on either side of a picnic table looking at a book showing styles of canoes.

Planning the canoe.

We began on a warm afternoon on the property of Grant Goltz and Christy Cain. We examined many books on the subject of birch bark canoes in order to decide what kind or shape to make. None of the books that Grant had provided good examples of northern Boreal Forest Cree canoe so we decided to make one that I found esthetically pleasing. It was called an early Algonquian Canoe “from the Ottawa River valley”. We made a few adjustments to the plan making a 15 foot canoe, 38 inches wide at the middle thwart. We also raised the height of the canoe at both the stern and bow and flattened the bottom somewhat following images of model canoes.

A sketch showing the end of a canoe with notes and measurements.

Sketch of canoe.

Sketch of a full canoe with notes and measurements for construction.

As we headed for bed that night Grant told Myra and I to get a good night sleep as we were going to be up early the next morning to gather spruce roots before the heat of the mid day.

An Exhibit with Teeth

By Dr. Graham Young, past Curator of Palaeontology & Geology

 

The Jaws and Teeth Exhibit, 2007

Since one function of the blog is to focus on our collections, it seems like a good place to occasionally revisit past exhibits, especially those showing items that are normally stored away in the back rooms.

Four skulls of varying sizes on display in a museum case. The lower three are identified as monkey skulls and the upper skull as human.

(Photo by Hans Thater)

A wide-angle view of a museum exhibit displaying a variety of skulls.

(Photo by Hans Thater)

Close-up on a walrus skull in a display case.

This walrus skull was front and centre as you entered the room (photo: Randy Mooi).

I was particularly pleased by the Jaws and Teeth exhibit, which was curated by Randy Mooi and me a few years ago. We combined zoological and paleontological specimens to demonstrate vertebrate anatomy and evolution, with a particular focus on adaptations for eating.

We loved doing this exhibit. To us, it was an opportunity to explore some of the best aspects of the traditional Natural History museum. And the public seemed to thoroughly enjoy it; we would always see family groups in the exhibit, animatedly discussing the various skulls and comparing their similarities. It really showed us that traditional exhibits can still fulfil an important function in the modern museum!

Three large shark jaws on display in a museum case.

This case of shark jaws and teeth highlighted the adaptations of one of the most long-lived vertebrate groups (photo by Hans Thater).

Large set of Tiger Shark jaws on a display mount.

Mounted jaws of the Tiger Shark, Galeocerdo, show how the teeth are continuously replaced like objects on a conveyor belt!

A variety of mammal skulls on display in a glass case.

This case exhibited the diversity of mammal groups, both living and fossil (photo by Hans Thater).

A display comparing the skull of a human to various other mammals including monkeys and beavers.

A human skull is compared to the skulls of other mammals. The beaver skull on the lower right is from an animal that had a displaced jaw, so that the teeth did not meet and wear normally. Its lower right incisor grew continuously until it met the skull! (photo by Hans Thater)

A variety of skulls from commonly recognized animals in a display case.

These are the skulls of familiar creatures such as dog, cat, pig, and pigeon.

The skulls of a variety of carnivorous mammals in a glass display case.

The skulls of carnivorous mammals are of great interest, and merited their own case.

Skulls of a polar bear and a wolf on display mounts.

Skulls of a polar bear (left) and wolf (photo by Randy Mooi).

A display case containing the skulls of a variety of reptiles and birds.

Skulls of a variety of “reptiles” and birds. A modern crocodile is compared to one from the Eocene Epoch, showing how little these creatures have changed in the last 50 million years!

Entry doorway into the Jaws & Teeth exhibit, with a number of display cases visible inside.

(Photo by Hans Thater)

Shuttle Discovery’s Final Flight Today

The space shuttle Discovery is on the pad right now, awaiting its launch at 3:50 pm Central time. Discovery’s flight has been delayed several times, most recently due to cracks in the massive external fuel tank. The cracks were repaired and strengthened, and the tank has been fueled and is holding pressure, so it looks like it was the right decision. We’ll be updating this blog throughout the preparations for launch.

Scott Young

Scott Young

Planetarium Astronomer

Scott is the Planetarium Astronomer at the Manitoba Museum, developing astronomy and science programs. He has been an informal science educator for thirty years, working in the planetarium and science centre field both at The Manitoba Museum and also at the Alice G. Wallace Planetarium in Fitchburg, Massachusetts. Scott is an active amateur astronomer and a past-President of the Royal Astronomical Society of Canada.

Voyage of Discovery

By Dr. Graham Young, past Curator of Palaeontology & Geology

 

Last week, I discovered several very exciting fossils. Some of these are unusual, so unusual that they will certainly end up as the subject of future scientific publications. One of them is only the second known specimen, worldwide, of a particular group for the entire Ordovician Period!

But how, you must wonder, did I manage to make these discoveries? Was I out in the -20 degree weather, scraping the snow from the edge of a quarry in the Manitoba Interlake so that I could get at the rock beneath? Was I taking time away from the Museum, collecting fossils beside some calm tropical sea?

No, it was not as romantic as either of those possibilities. I was in one of the best places to find unusual fossils: looking through the microscope in my little research office. You may have heard of those situations when a large museum discovers an unknown dinosaur in its back rooms, stored away in field jackets from some long-past collecting expedition. But what you might not appreciate is that many of the most important fossil discoveries are made in museum collections, not in the field.

Stacks of trays carrying fossils placed around a crowded office.

I had thought about this for a long time, ever since hearing and reading about how Euan Clarkson discovered the conodont animal in a collection in Scotland. Conodonts have been known for over a century as small, fossilized tooth-like structures that are abundant in many rocks from the Paleozoic Era, but until the early 1980s it was not known what they really represented. Euan found the answer when he was looking through drawers full of specimens that had been collected long before from a site near Edinburgh known as the Granton Shrimp Bed. Based on this discovery, he and his colleagues were able to demonstrate that conodonts were eel-shaped fish-like creatures.

 

Image: In the paleontology lab, trays of fossils await examination under the microscope.

It is much the same here. We might sometimes already have an inkling that we have found something unusual, such as a very ancient horseshoe crab. But it is only when we really study things carefully under a microscope that we are able to make sense of them, to discover what they actually are. And there are times that the finds are, like Euan’s, simply serendipitous. When I first started to work at the Museum, I had to sort through some uncatalogued fossils. One of these looked somewhat like a jellyfish, with the note attached stating that it had been found in a schoolyard in River Heights, Winnipeg.

Close-up of a fossilized horseshoe crab.

Holotype specimen of the horseshoe crab Lunataspis aurora (specimen I-4000A).

Close-up on a fossilized jellyfish specimen.

The jellyfish found in a schoolyard in Winnipeg (specimen I-2555; ca=canals, go=gonads).

Years later, when I really started to study fossil jellyfish, I pulled out that specimen and realized that it wasn’t just a jellyfish. It was actually one of the best-preserved fossil jellies in existence, and I used a photo of it in a paper we wrote reviewing these sorts of fossils. Since it was found in a schoolyard, however, we don’t actually know its bedrock source. I have my hunches about where it came from originally, but we are still hunting for that jellyfish goldmine! So maybe I will make a discovery in the field, too, but if so it will be because we first found a fossil in the Museum’s collection.

Meanwhile, on these winter days, I will be hunched over my microscope whenever time permits. There are so many slabs of rock to be pored over, fossils waiting to be discovered, and time moves on faster and faster …

Fun with Fungus!

It’s that time of the year when I’ve finished writing reports and analyzing data and actually get to look at all the stuff I collected last summer. I’ve just finished identifying my vascular plants and now I get to look at the fungus! Using the photographs I took of the fresh mushrooms and the notes I wrote up in the field, I settle down at my desk with a hand lens, a ruler, and a big stack of mushroom books to try and figure out what I’ve got.

A selection of fungus specimens in various storage containers laid out on a desk.

Trays of fungus that I’ve been identifying.

A flat capped mushroom growing in the grass.

My unknown Russula while still fresh in the ground.

Mushroom identification is a bit different than plant identification because you need to use your sense of smell. After determining that one of my mushrooms is some kind of Russula, I move onto the species descriptions. One of the distinguishing characteristics of a candidate species is that it smells “fruity when young and dirty when older” while the other is only “slightly dirty”. Hmm, how does one ascertain the level of dirtiness? I’m stumped and decide to move on to the next character on the list: taste. One candidate species is described as tasting “very sharp and burning” which sounds more like a description of a bladder infection than a gustatory sensation to me. I decide to skip over the taste part too; I’ve read too many articles about exactly what happens to you if you eat the poisonous ones. You probably don’t want to know the details: it’s not pretty. After reading more of the descriptions I finally settle on Russula alutacea and my work on this species is done.

Two mushrooms picked and laying on the ground.

On to the next fungus, which is providing me with a fair bit of grief since it doesn’t seem to have any distinguishing characters at all! It is beige and light brown with white spores, no volva, no annulus, no partial veil, no bumps. Plus I can’t really find anything that looks quite like it in my field guides. I decide to try the internet and come across a wonderful mushroom identification web page by Micheal Kuo (http://www.mushroomexpert.com/index.html). Using his on line keys I decide that my unknown species could very well be Melanoleuca. Mr. Kuo writes that identifying species in this genus is nearly as tedious as singing Suzanne Vega’s “My Name is Luka” with the words changed to “Melanoleuca” (watch here). Oh no! Now I’m going to be singing that song all day. But the lyrics aren’t quite right. Ah, here we go “Melanoleuca, it lives on the forest floor, its’ not very colourful, yes I think I’ve seen it before. If you find mushrooms with white spores, flattened caps and amyloid warts, you just might have found this genus, you just might have found this genus, you just might have found this genus”.

 

Image: A suspected Melanoleuca sp.

As you can probably tell I get a little “office-bound” and antsy this time of year. It’s actually quite enjoyable to open up the containers that I placed the fungi in earlier in the year because the scent becomes concentrated. When the container is opened the wonderful earthy, spicy fragrance of the fungus is released and I am transported back to that mossy forest floor where I found it–a nice place to be (even if it is only in my head) on a cold, grey, February day. Unfortunately, smelling these fungi tends to make me hungry. Right now I’m craving linguini with mushroom cream sauce and bacon. Oh well, I guess I know what I’m having for dinner tonight!

Dr. Diana Bizecki Robson

Dr. Diana Bizecki Robson

Curator of Botany

Dr. Bizecki Robson obtained a Master’s Degree in Plant Ecology at the University of Saskatchewan studying rare plants of the mixed grass prairies. After working as an environmental consultant and sessional lecturer…
Meet Dr. Bizecki Robson

50 Years Ago Today: Bold Steps in Space

50 years ago today, during the height of the Cold War, Americans and Russians were head-to-head in a competition to put the first human into space. At the same time, both nations were trying to send robotic probes to the Moon and the other planets. On February 3, 1961 (in North American time zones), the Soviet Union launches a four-stage version of their R-7 rocket. Earlier versions of the R-7 had launched Sputnik and the dog Laika, the first living being to orbit the Earth. With the added fourth stage, the target this time was the planet Venus. The Venera series of robotic probes would eventually land on Venus and provide the first images of its cloud-shrouded surface, but in 1961 the rockets were not up to the task yet.

The R-7 launched into a starry sky, and performed flawlessly throughout its first three stages. The new fourth stage, however, failed to ignite, and the probe remained in Earth orbit. To cover up the failure, the Soviets called the mission “Sputnik 7” and said it was only a test of a heavier spacecraft design, the Iron Curtain equivalent of “I meant to do that”.

Despite being a failed space mission, the launch did prove to the Americans that the Soviet Union could place an 8-tonne payload into orbit – and therefore, could also lob an 8-tonne H-bomb to hit any target in the world.

Scott Young

Scott Young

Planetarium Astronomer

Scott is the Planetarium Astronomer at the Manitoba Museum, developing astronomy and science programs. He has been an informal science educator for thirty years, working in the planetarium and science centre field both at The Manitoba Museum and also at the Alice G. Wallace Planetarium in Fitchburg, Massachusetts. Scott is an active amateur astronomer and a past-President of the Royal Astronomical Society of Canada.

Cosmomania Exhibit Takes Shape

We’re deep in the installation of our upcoming exhibit, “Cosmomania: The Great Space Adventure”. Here are a few images from the exhibit, which opens February 4 and is FREE to the public (thank you to the Canadian Space Agency for supporting its cross-Canada tour).

A sign with writing "cnythnk / spoutnik 57".

Sputnik 1957 banner.

A reflective metal orb on a stand in front of a chalkboard like sign with blueprints on it.

Sputnik workshop, 1957.

A white space helmet with red letters across the top reading CCCP.

Yuri’s Helmet.

Figures of Tintin, Captain Haddock, and Snowy the dog in orange space suits next to a red rocket.

Tintin astronaut figures.

Close up on a wallpaper pattern in reds, oranges, and browns, showing microscopes and humanoid figures working with tools like wrenches and poles.

Communist wallpaper, Soviet Union c. 1961.

Scott Young

Scott Young

Planetarium Astronomer

Scott is the Planetarium Astronomer at the Manitoba Museum, developing astronomy and science programs. He has been an informal science educator for thirty years, working in the planetarium and science centre field both at The Manitoba Museum and also at the Alice G. Wallace Planetarium in Fitchburg, Massachusetts. Scott is an active amateur astronomer and a past-President of the Royal Astronomical Society of Canada.