Showing posts with label conservation. Show all posts
Showing posts with label conservation. Show all posts

6 Sept 2019

Bird Banding! guest post by Meghan Jacklin

Ever wonder what it’s like to be a biologist? It is a truly rewarding career, but it might not be what you expect! Read on to learn about what a career in biology can be like, in a post from our guest writer Meghan Jacklin.

My name is Meghan, and I am a biologist in Edmonton Alberta. I was first inspired to care about wildlife and natural areas from a young age through my love of wolves, and my family canoeing and camping activities. I struggled to find the right education, until I heard about the Environmental sciences program at the U of A. I got my bachelors degree in Conservation Biology, and then it was time to head out into the real world!
Meghan (right) and a coworker, birding despite rain AND mosquitos!

During my degree I started volunteering for a local organization called the Beaverhill Bird Observatory. That is where things got really interesting. The Beaverhill bird observatory studies bird migration through bird banding. But what is bird banding?

Bird banding means putting a lightweight metal band with a unique number on a bird's leg. If this bird is ever caught or found dead somewhere else in the world, we have learned valuable information about that bird and where it traveled!

 Neat! But why do this?

About 40% of the worlds 10,000 bird species are migratory, meaning they spend part of the year in one place and then undertake a large movement to another location for a different part of the year. This can make them uniquely vulnerable – if their habitat, the place that they live, is destroyed or damaged in one area, but not in the other, we may not recognize what the problem is without understanding where birds are migrating to and from.

A banded Dark-eyed Junco
What else do we learn from bird banding?
We also can determine whether a bird hatched this year or is an adult. This helps us understand whether problems are occurring at the breeding grounds (if not many babies are hatching) or if problems are at the wintering grounds (there are enough babies but not many returning adults). We can check roughly how fat a bird is! This is important because some birds migrate hundreds to thousands of kilometres, sometimes without stopping. They must put on lots of weight before starting so they have enough fuel to make it to their journey's end.

How does it actually work?
We first have to get up reeeaaally early, because that is when the birds are around! We get up half an hour before the sun even rises – urg. It is worth it though! We then set up a series of very fine mesh nets, so fine that you can hardly see them. As the birds are flying through the bushes in the early morning, they don’t see the nets, and fly right in.

Can you see this songbird mist net?
Then the staff and volunteers get busy. We check the nets every 30 minutes and remove every caught bird, and place them in individual cloth baggies to bring back to our banding lab. It takes lots of training, and dexterity to carefully take the birds out of the nets! We also get our exercise in, seeing as the distance to check all the nets is around 1 km in length, and we need to walk that every 30 minutes.

Lots of birds in bags,waiting to be banded at the lab!
Once we get back to the lab, we start the banding process. We add the band using special pliers, and this part is actually pretty easy to learn. What’s harder is accurately determining the age and sex of the bird. That requires study and practise, and careful reading of the “bird banding bible” Pyle, the widely accepted expert in North America.

During the banding process, we also get pooped on… a lot! We learn a lot about birds and can help their species to thrive, but no wild bird enjoys being caught, and they let us know! We are covered in poop, and little scratches from beaks and claws by the end of a day. Most songbirds don’t hurt too much when they bite, but if we catch a bird used to cracking seeds – ouch!

An adult Great Horned Owl about to be banded.
 With all that said, bird banding is a very rewarding path for a biologist. Until you start to look and listen, you don’t realize the beautiful colours, shapes, and sizes of the birds right here in our backyards. With all the troubles that birds face, from window strikes, cat predation, habitat loss, and changing climate, it is wonderful to know I am making a difference.
If this sounds right for you, it’s never too early to get started. Many banding stations are open for the public to visit, volunteer, and learn about this important work. Look for one near you!

20 May 2016

So You Want to Work with Animals.....

Post by Helaine Becker

A lot of kids love the idea of a career working with animals. Who can blame them?Animals are cute, cuddly, funny, fascinating. But they're also hard to take care of!

For my recent book, Worms for Breakfast: How to Feed a Zoo,  I got the chance to interview several people who do work with animals, every day. They told me what their favorite parts of their jobs were, what they liked least, and how they got the job in the first place. While most agreed that their jobs had lots of hard bits, they all agreed that working with animals was everything they'd imagined it would be: challenging, exciting and rewarding.

Dr. Deb Schmidt, a Nutritionist at the St. Louis Zoo, had this to say, "The fun part of being an animal nutritionist is helping to solve problems. I like to figure out what nutrients animals need and at what levels. Sometimes, domestic animals (like cows, horses, chickens, dogs and cats) give us clues about what wild animals similar to them may need. But the diets of other animals (such as apes and reptiles) can be harder to figure out."

Dr. Schmidt went on to say that if you want to become a zoo nutritionist, you should be good at math and science. A strong background in biology or biochemistry wouldn't hurt!

You can find out more about careers that involve science and working with animals, check out Worms for Breakfast.  But also check out Sci-Why's very own giant list of super science resources (click the tab, above). You'll find a listing there specifically for Careers in Science.



7 Apr 2016

Another Book Birthday!



Have you ever wondered what to feed a platypus? Or how to keep a lion from getting bored with a never-changing menu of antelope, antelope, antelope? Zookeepers certainly have, and for them it's literally a matter of life and death.

Keeping hundreds of different animals fed and healthy is a mammoth job. And I wanted to know how they did it. Do zoos have boxes of index cards with favorite recipes? And if so, what are they?

The answer is yes, they do, and all last year I chatted with animal nutritionists at zoos all over the world to find out their go-to recipes and secret ingredients. I also found out more about the issues zoos are facing:  about whether or not animals should be kept in captivity, and what to do for animals whose habitats are disappearing. I learned about best practices in animal and habitat conservation, breeding and more.

For example, do you know how  - or why - it is important to hand-rear flamingo chicks in captivity?
You'll find the answer, and a recipe for a yummers smoothie here! You'll also find out why pandas get birthday cakes and tigers get popsicles ---really.



Worms for Breakfast: How to Feed a Zoo is published by Owlkids Books and is a Junior Library Guild selection. You can find the book at your favorite bookseller anywhere in North America.

29 Jan 2016

Raptors in residence: The fun way to learn about hawks, falcons, and other birds of prey

By Marie Powell

As the author of a book called Hawk, I was naturally interested when the Canadian Raptor Conservancy came to Regina earlier this month.  This group has a focus on conservation and education, bringing live bird shows across Canada.

Many of the species are endangered, so the shows offer a unique opportunity for the public to see these birds up close. In Regina, we saw a great horned owl, several species of falcons and hawks, and even a bald eagle.

During the shows, the handlers use posts for the birds set in strategic areas around the room. They carry the birds to the posts, then walk away. At a signal, the birds swoop through the crowd -- often right overhead -- to fly back to the handlers for their reward. The show set up in Evraz Place in Regina to get enough room for these dramatic flights that quickly won over the crowds on a cold January weekend.

That also let them set up displays of falconry equipment, wall-sized photos, and display cabinets of bird feather, bones, anatomy, and a full-sized mural of bird wingspans for children to compare against their own outstretched arms.

The combination of macabre and informative displays made for exciting set-ups to catch the attention of the crowd between shows.

Between the shows and the displays, people who attended had many opportunities to learn a few facts about the birds and their handlers. For example, the peregrine is the fastest bird in the animal kingdom. In a dive (or stoop), peregrines tuck in their wings in a teardrop shape to reach speeds of over 300 k/h (200 mph). With breeding programs for more than 15 species, the Ontario facility houses some 200 birds bred in captivity, and releases some of these birds back into the wild.

In Regina, the group teamed up with Little Ray's Reptile Zoo and the Backyard Conservation Fund of Canada, alternating the raptor shows with live snakes and reptile demonstrations. Reptiles of all kinds were also housed in display cases throughout the show area.

Large poster boards and displays also gave the conversation message, and the handlers were ready to talk about their message during and between shows. Many raptor species face habitat loss from such human activities as urban sprawl and pesticides, so these shows offer a unique opportunity for the public to interact and learn a little about ecology and conservation at the same time.

Here are some more websites to check for information about raptors:

Canadian Raptor Conservancy
http://www.canadianraptorconservancy.com

Audubon: Identify Raptors in Flight:
https://www.audubon.org/news/identify-raptors-flight

Watch a video of a peregrine falcon in flight:
https://www.youtube.com/watch?v=Me3Y64VUqqQ

Amazing Planet: Five fastest birds
https://www.youtube.com/watch?v=MMsLVxcKh24

Watch for the Canadian Raptor Conservancy shows as they move across Canada. Have you seen a show yet? Leave a comment and let's discuss it.


Marie Powell is the author of the young adult fantasy Hawk (Five Rivers),  as well as 30 other books for children and youth on a variety of topics. More information about her and her books can be found on her website at www.mepowell.com.

6 Sept 2014

Drift Cards for Citizen Science

Science is done not only in labs by people with white coats and clipboards, but also in the field. And "in the field" can mean on the water, and on the beach. So paddlers and beach-walkers can keep your eyes open this month for some citizen science opportunities on the Salish Sea!

These opportunities aren't as high-tech as the Neptune and Venus projects off-shore on the continental shelf. I've written about those before on the Sci/Why blog. Nor are they as specialized as the clam gardens research done on Quadra Island that was noted on the Kayak Yak blog, too. Nope, these current opportunities for ordinary citizens to participate in a science project involve picking up cards.
This photo is from the Raincoast Conservation Federation website.
 That doesn't sound very science-y at first. It doesn't sound like it has anything to do with kayaks, either. But hang on. These yellow cards are biodegradable plywood cards with detailed labelling, and they're being released at particular locations on the Salish Sea. If you find one while you're out in a boat or on a beach, pick it up and contact the scientists, who are part of a team involving the City of Vancouver, the Raincoast Conservation Federation, and the Georgia Strait Alliance. You will have helped track the way that floating items drift in real-life, real-time conditions.
There's an article about this drift card release on the CBC website at this link, and another more detailed article on the Vancouver Observer website at this link. You can also go to the website for the Salish Sea Spill Map, where the locations of card releases and recoveries are being tagged on a map. Is your home base on this map? Maybe you're planning a paddling trip and want to look up that location. Maybe you're thinking about what could happen if, instead of cards, there were other things released such as fossil fuels from a tanker? And now, this project makes a little more sense.
A close-up of one of the cards, from the Vancouver Observer article.
 Citizen science is not only about allowing ordinary untrained people to participate in projects by real scientists. It can be about seeing real science in use in the lives of ordinary citizens. We citizens interact with the environment when we're out on the water in our small boats or walking along shorelines. We can gather data in many more places than a scientist could ever get funding to cover. We get to be part of the community of learning.

11 Mar 2013

Over, Under, and On the Arctic Sea Ice

By Claire Eamer

The shrinking sea ice of the Arctic Ocean has been in the news a lot lately, along with photos of polar bears stranded on ice pans or wandering hungrily along bare shores. But what does the disappearing ice affect, apart from polar bears and some shipping companies that see a shorter sea route opening up?

Claire Eamer photo
Arctic sea ice supports a huge and complex ecosystem that ranges from polar bears, birds, and humans down to organisms too small to see without a microscope. Here are a few sites about that world - and a lot of gorgeous photographs!

The Census of Marine Life's Arctic Ocean Diversity website has great information and amazing images. Click on Species to see some of the creatures that make use of the Arctic Ocean and its ice, from top to the ocean bottom.

The US National Earth Science Teachers Association’s page on Arctic Marine Life gives a quick overview of Arctic Ocean biology, from algae to polar bears.

A young Russian scientist and photographer, Alexander Semenov, has been photographing Arctic sea life and sharing his photos with the world. There’s an article about him (with lots of lovely photos) and here's his own website and gallery.

How about the people who live with the ice all their lives? What can they tell us about it? The Inuit of northeastern Canada have been collecting traditional information about sea ice and sharing it at Inuit siku (sea ice) Atlas.

What does it really look like up there, around the Arctic Ocean, both above and below the ice? The photo galleries of Canada’s ArcticNet research program can give you a good idea.

And if you’re a student or a teacher and you want to see the Arctic for yourself, it just might be possible. Check out ArcticNet’s Schools on Board program.

25 May 2012

Life in Wascana Lake: Aquatic ecosystem studies

By Marie Powell

I had the chance to learn more about Regina's man-made Wascana Lake recently in a new speaker's night at the Saskatchewan Science Centre.

One of the speakers was Dr. Richard Vogt. He has a postdoctoral fellowship in biology at the University of Regina to study structure and functioning of aquatic communities and ecosystems. He works with Dr. Peter Leavitt in the Limnology Lab, using the long-term database of lakes in the Qu'Appelle River catchment to explore important questions in limnology (meaning the study of freshwater lakes and marshes) and aquatic ecology.

Limnology lab scientists monitor Wascana Lake as one of six major lakes in the Qu'Appelle Valley wastershed, Vogt told about 30 people who came to hear three speakers on water issues on May 4, to open the exhibit "Water's Extreme Journey." Vogt grew up in Ontario and took his PhD in Aquatic Community Ecolology from the University of Quebec in Montreal. He said his colleagues would envy the U of R for its “rare and valuable” database of samples, collected every two weeks – in all seasons – for some 16 years.

Part of Vogt's studies with Leavitt include the effect of Regina’s “Big Dig” in 2004. During the $18-million Wascana Lake Revitalization Project, or “Big Dig" as it's known locally, Wascana was dredged from about 1.5 metres to about five metres in depth, removing over 1.3 million cubic metres of soil in about four months. (More on the dig can be found in The Big Dig: The Miracle of Wascana Centre by Bob Hughes.)

Vogt's studies show that surprisingly, the project hasn’t affected Wascana Lake the way scientists predicted it would. For example, scientists predicted the dredging would make the lake less clear and cause an increase in algae. Up to then, he said, rooted plants locked up the nutrients in the lake sediments, providing a habitat for zooplankton that graze on algae. Plants growing all the way to the water’s surface would get caught in people’s boat oars, and have to be mulched periodically.

But the dredging caused “no change in the most important water quality indicators” in the lake, Vogt said. Although the overall number of plants was reduced, there has been no increase in algae, and no decrease in clarity. There are some differences in algae species that thrive in the lake, but “for the most part we see a similar diversity,” he added.

For more information, check http://www.uregina.ca/biology/faculty/Leavitt/labsite_files/wascana.html

Marie Powell is the author of Dragonflies are Amazing! (Scholastic Canada, Grade Two Guided Reading, 2007). (Note: A version of this material appears in Marie's article in Metro Regina print edition, May 10 2012. Photo: Wascana Lights by L L Melton.)

5 Mar 2012

Your Daily Dose of Science - Now With Bonus Cute

How do scientists learn about animal behavior? Sometimes animals are outfitted with collars that allow scientists to track the animals in order to learn about their daily life, the food they eat, hunting, nest building and much more.

In this wonderful video, Rick Mercer accompanies park wardens as they tag new born bear cubs in the wilderness of northern Ontario.






16 Dec 2011

Christmas counts - to the birds


By Marie Powell

As we start preparing the annual Christmas turkey (photo by tuchodi), tens of thousands of volunteers are out in search of other birds - on the annual Audobon Christmas Bird Count.

Before the Twentieth Century, many bird and animal species would need to fear the annual hunting parties in search of sport and/or food for the holidays. According to the Audobon website, this annual hunt turned into a bird-counting census on Christmas Day in 1900, when the idea was suggested by ornithologist Frank Chapman. In its first year, the bird count included sites from Ontario to California.

Today, Christmas bird counts are held across North and South America from December 14 to January 5. Bird counting usually takes place in groups within a defined area, and in all kinds of weather. The data collected helps scientists and researchers study the health of bird populations over time. That helps identify declining bird populations - and ultimately, declining populations tell us about the health of a given area or ecosystem.

It's a way of giving back - and when could that be more appropriate than at Christmastime?

For more about Christmas bird counts, or to find one near you, try these links:

Audobon: Christmas bird count: http://birds.audubon.org/christmas-bird-count#

Audobon: Get Involved: http://birds.audubon.org/get-involved-christmas-bird-count

Bird Studies Canada: http://www.bsc-eoc.org/volunteer/cbc/index.jsp?targetpg=cbcparticpate&lang=EN

Marie Powell is a freelance writer and author of Dragonflies are Amazing (Scholastic).

4 Oct 2011

Yes, It IS Ethical Oil

Posted by Helaine Becker

Last month, Saudi Arabia made headlines in Canada when it tried to prevent the non-profit advocacy group, Ethical Oil, from running ads in support of Canada’s oil sands. Saudi Arabia apparently didn’t like how the TV spots highlighted the Saudis’ abysmal record re human rights. (Read more here.)
Less than a week later, the oil sands were in the news again, this time receiving plaudits from a surprising source: Patrick Moore, founder of Greenpeace. Moore said, “oilsands development is necessary and often leaves the production sites in better environmental shape than they were before oil was taken from the land.” (Read more here.)
I live a world away from Alberta, in posh, ivory-tower Toronto. It's hard to really know the truth about the oil sands/tar sands here (take your pick of the terminology; which you call it reveals your attitude, pro or con). I can tell you, though, that the Lululemons in my 'hood unanimously and vociferously decry them (but then drive off in their X5s).

As a science writer, I know the world is not a chic but simplistic black-and-white. I know, for example, that as feel-good as it is to tsk tsk fossil fuels, I wouldn’t  - couldn’t - live in Canada without oil. I’m fond of my furnace come October. So until that magic day when we can switch over entirely to non-carbon fuel sources, I’m going to have to accept that oil and I are partners in the Canadian experiment.
But that’s not to say I’m not uneasy about it. It’s also why I jumped at the chance to see the oil sands for myself last June. As part of the Canadian Science Writers Association’s annual meeting, a trip to Fort MacMurray was offered. I signed up pronto.
What I wanted to know was, “What is the real impact of the mining operations on the environment? Is it really “dirty oil,” as opponents claim? What are companies doing to minimize the environmental impact? And what, really, are our alternatives?”
The day was warm as we boarded the private plane provided by Connacher Oil and Gas, one of the gazillion oil companies based in Fort MacMurray. Connacher is at the forefront of in situ mining, a method of oil recovery that only became viable in the last decade. Traditionally, oil sands were obtained through open pit mining – huge quantities of the bitumen-rich soils were scraped off the surface of the land for later extraction. This process certainly left large areas of the landscape in bad shape, and potentially exposed populations downstream to toxic wastes.
Only a fraction of the oil sands – those that lay on the surface –could be mined this way. But much greater quantities of oil – unbelievably huge reservoirs that make the Middle East's reserves look like duck puddles – remained inaccessible. Technology to access them simply did not exist until the 1980s, when a technique called SagD (Steam Assisted Gravity Drainage) was developed and proven. With SagD, hot water is pumped into underground reservoirs that contain the thick, tarry oil sands. The steam loosens the tar, enabling it to be pumped up to the surface, where it can then be refined.

The Connacher team at the well pad
SagD seems to have a much more limited impact on the environment than traditional open pit mining. The footprint of the wellpad is tiny; to my eye, about the size of an average high school gym. The official bumpf says the pads cover 85-90% less surface area than old style mines. The Connacher plant also recycles over 90% of the  water used to make the steam, using only non-potable water; it doesn’t draw water from the nearby surface water or rivers. The company also  generates its own energy, making it largely independent of the power grid.
I have to say I was impressed by the facilities we toured and the caliber of the Connacher staff we met. Like most Canadians, the engineers at Connacher were concerned with the environment, and proudly detailed for us the programs they had in place to ensure as little disruption as possible to the wildlife of the area, and the environment overall.
Our guides were not given an easy ride by our group of science professionals and journalists, which included Jay Ingram, longtime host of Daily Planet, Susan Eaton, geologist, geophysicist and committed conservationist, and award-winning science journalist Peter McMahon. They were given tough questions to answer, and were not allowed to avoid them or slide away with easy generalities. Is SagD perfect? Of course not. It still is releasing carbon into our atmosphere, which we all know is damaging. And there are still local environmental concerns that need to be addressed with stricter regulations and monitoring.
After the visit to Ft. MacMurray, the issues around the oil sands were clearer in my mind. Like Patrick Moore, I now believe that Canada, as a nation, cannot, and should not, put a stop to oil sands extraction in Alberta. We simply have no alternatives to oil yet.  Until we do, we have to get our oil from somewhere. Like the folks at Ethical Oil say, where would you rather get your oil, from Canadians who are regulated and who make the effort to obtain the oil in the cleanest possible way (no matter if we don’t always reach nirvanic perfection, at least we are trying – can you say the same about Venezuela?)? Or would you rather buy your fuel from a country where women aren’t allowed to drive, or vote, or get stoned to death if they look at a man that isn’t their relative?
Not me. I’m going to continue to use as little fossil fuel as I can, because reducing its use is good for everybody. But until I can honestly live without fossil fuels, I’m going to support the firms and countries that are more in line with my values of environmental conservation and human rights. That means Canadian oil.