Galapagos – From Blue-footed Boobies to Swimming with Sharks (Part 2)

By Margriet Ruurs

This is the second part of Margriet's story of her visit to the Galapagos Islands. Click here for the first part.

Blue-footed Boobie!

We hiked across Mosquera Islet seeing many birds up close, including – to my delight – the Blue-footed Boobie. We had watched documentaries about the Galapagos and were thrilled to see these birds in real life, as well as the bright red Sally Lightfoot Crabs scurrying across the black lava rocks, pelicans, swallowtail gulls, and many others.

Male Frigate Bird

One of the funnest animals was the sea lion. They look exactly like our North American seals, but the ears show that they are sea lions. It is amazing that all animals here have no fear of people. The seals come right at you, follow you like puppies, and want to play. It is the hardest thing not to reach out and pet them.

But this is a National Park and everything is highly protected. You cannot take a rock or a shell or touch anything. And rightly so.

Next we hiked North Seymour Island where the huge Frigate Birds soared overhead and young ones with white heads in perched in trees, looking like bald eagles.

Iguanas live on most islands but they are different species, having adapted to life on each island. Some islands had black iguanas; elsewhere they were yellow or even pink. We also saw the swimming ocean iguanas.

We hiked across Santa Fe and South Plaza islands. Being on a boat allowed us to visit more places but it also had the disadvantage of rocking and bobbing.

However, the biggest thrill for me was being able to swim off the back of the boat. Even after a few excited calls of “Shark!” I couldn’t figure out why it was okay to swim when there were sharks, but I trusted that our guides knew what they were doing.

We snorkeled several times, and it was beyond description to be in the ocean and have a large sea lion coming straight at me like a bullet, only to veer off at the last second. At one point two sea lions swam alongside me on either side. I watched turtles swimming below me, and hundreds and hundreds of colourful fishes like parrot fish.

And sharks. White tip sharks. Pretty cool.

On San Cristobal Island we strolled through the town and it was a bizarre experience to run into two friends from Kelowna!

We visited the Galapagos Interpretation Center. Sweat dripped of our bodies as we just stood still, reading about the violent human history on the islands. The animals really ought to be afraid of humans. They killed over 100,000 turtles and thousands of whales during the mid-1800s to mid-1900s. Nowadays, 97% of the islands is strictly protected as a National Park. All we can do is hope it will always stay this way and that Galapagos’s amazing variety of wildlife, which so well demonstrates its capacity to change and adapt to its natural environment, will be around for generations to come.

Reflecting back on it all, I am very glad to have been able to make this amazing trip and to see these special places on Earth. But it is a very long way to travel, expensive, and a bit overrated. Like ‘Serengeti’ the name ‘Galapagos’ has mysterious allure, but we have visited many places where plants and wildlife have adapted to their environment, and places like Australia’s Great Barrier Reef where we also saw giant tortoises and birds that stayed a foot away from us.

If you can go, do it. But otherwise, savour nature around you anywhere – nature is always incredible and forever adapting.

All photos are Copyright ©Margriet Ruurs

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.

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.

Ten Random (But Fascinating) Facts I Learned While Researching A Magazine Article

By L E Carmichael

1. Dogs were the first domestic animal species.  Unambiguous archaeological evidence for dogs is about 12,000 years old, but domestication may have started 20,000 years or more before that.

2. Ancient Egyptians had at least three dog breeds: a greyhound type, a mastiff type, and a small Spitz type.

Shetland sheepdogs - note the floppy ears!

3. The modern concept of breeds, and of deliberately breeding animals for specific traits, developed in Victorian England.  Which means that most of the 400-ish dog breeds recognized today are less than 200 years old.

4. Scientists aren't entirely sure whether house cats are actually domesticated.  It's possible they're nothing but "delightful profiteers," to borrow a phrase from Stephen O'Brien, well-known expert on the evolution of the cat family.

5. Dingos are a breed of domestic dog.  People took dingos with them to Australia several thousand years ago.

6. Floppy ears are found in almost every domestic species.  The only wild species with floppy ears is the elephant.

7. Chimpanzees are humans' closest relatives.  Dogs are better at interpreting human gestures, such as pointing.

8. Crop species are considered domesticates of wild plants.

9. Domestication is a type of evolution.  Natural, artificial, unconscious, and conscious forms of selection are all involved.

10. A group of Russian scientists once attempted to domesticate otters.  It did not go well.  Neither did attempts to domesticate zebras, despite their close relationship to horses.

And this is how one article pitch becomes two, and two become a book proposal...

Seek Animal Signs Instead of Animals

Alone or with children, when it comes to enjoying nature, it’s natural to hope you might spot animals, especially big game. Depending where you live and how safe your surroundings are, you might hope to see a bear, moose, or deer. It’s always fun to catch a glimpse of wildlife but I challenge you to explore nature with a different plan in mind. Next time you walk a trail, make it your goal to look for animal signs instead of animals.

Use as many senses as you can. Close your eyes and listen. Can you hear birds, insects, or frogs? Sniff the air. You’re sure to notice if a skunk is nearby. You might also smell a stinkbug! These winged insects release a nasty smell when defending their homes. More pleasant nature smells to seek include wild mint, wild roses, or the scents that accompany fresh water. I’ve noticed wild cranberries waft a wonderful scent through the woods after an autumn frost.

Now look up into the trees! Can you see a bird nest or woodpecker hole? Perhaps you notice signs of insect life. You may spot leaves full of holes or eggs on vegetation. Look on willow trees for pale-green pine-cone willow galls. These odd growths form when midge larvae secrete a chemical that causes a part of the host tree to grow differently. The gall becomes a home for the midge which must chew its way out when it becomes an adult! Some insect galls look like small warts, spindles, or round growths on leaves. Others form bulbous growths along plant stems. Many different kinds exist.

If you come across spruce, pine, or other evergreens, check beneath the branches for signs of squirrels. Where I live in Alberta, red squirrels drop scales from cones as they feed from the branches above. They drop so many scales, great piles form into a midden. You may see tunnel entrances in a midden and even hear the chattering squirrel start to scold if you get too close! You will also know squirrels are nearby if you see small branches of needles on the ground. And if you glimpse a mushroom in a tree, you know a squirrel is saving a snack for later.

As you walk along, look into the underbrush to see if you can spot animal trails. Rabbits, deer, coyotes, and many other animals use these paths to travel through wooded areas. If you find a trail and look at the trees growing alongside, you may notice places where deer or moose have bitten shoots off tree branches. You may also see their scats on the ground.

In the fall, look for deer rubs and scrapes. Along trails, whitetail deer bucks rub their antlers on tree trunks, as well as break branches above the scrape. They paw at the ground until the soil is exposed and then leave their scent to mark their territory.

If your walk takes you along soft soil, sand, or a place where mud has dried or snow has fallen, look for animal tracks. But don’t just look for big prints from large animals! Look carefully for smaller prints from rabbits, squirrels, mice, and birds.

Other things to watch for on a nature walk:

·         acorns or other nuts with teeth marks

·         animal dens

·         anthills

·         antlers

·         bones

·         cocoons

·         egg shells

·         feathers

·         insect tunnels in fallen logs

·         porcupine quills

·         snail shells

·         tufts of fur

·         wasp nests

The better you get at searching for animal signs, the better you will become at spotting the animals themselves!

Harvest Time in the Forest

posted by Claire Eamer

It's harvest time here in the Yukon, at the northern edge of the boreal forest. The leaves on the aspen trees are beginning to turn sunshine-yellow, the fireweed is crimson, and the high alpine bushes are showing red. People are out in the bush every weekend, picking berries and gathering mushrooms.

So, I might add, are the bears, so the wise human berry-picker makes plenty of noise!

The forest here can look pretty sparse -- spindly trees and a forest floor covered with tiny plants, mosses, and lichens. You'd think that by the time the big two-footers and four-footers were done harvesting, there wouldn't be much left for anyone else.

But you'd be wrong. A lot of little creatures depend on the foods provided by the boreal forest to make it through the long winter, and they're out harvesting too. If you look closely at the tiny plants that flourish beneath the trees and along the forest's edge, you'll find plenty of goodies to gather.

In the alpine, where forest gradually gives way to alpine tundra, pikas are building up their haystacks. A small cousin of rabbits, a pika can stash away 20 kilograms of grasses, leaves, seeds, and flowers over the summer, much of it in large piles just outside the entrance to its burrow. When the winter wind whips across the bare mountainside, driving snow before it, a pika doesn't have to go far for a snack.

Down on the forest floor, the voles are also tucking away winter groceries. They're less ambitious than pikas, and a lot smaller -- like tiny, delicate mice. Still, a single northern red-backed vole might store up to 3 kilograms of seeds, berries, and fungi near its winter burrow.

But voles and many other creatures of the forest floor don't just depend on food hoards all winter. When snow covers all that autumn bounty and the forest looks barren, many of the forest's smallest creatures are still out there, awake and busy.

They scurry around all winter under the snow, in an area called the subnivean zone where the warmth of the ground partially melts the snow above it. There, tiny animals search the buried vegetation or scoot through tunnels in the snow above, still harvesting frozen blueberries, bearberries, cranberries, rosehips, seeds, kinnikinnick berries, fungi, and all the other tiny jewels of the boreal forest's treasure chest.

If you'd like to know more about what people and animals are harvesting in the Yukon forest, Jozien has a blog called Yukon Wild Berries.

To find out more about the physics of the subnivean world, the Cable Natural History Museum of Wisconsin has a nice online article about Subnivean Temperatures.

And here's a nice article in the St. Albert Gazette (Alberta) about subnivean life a little farther south in the boreal forest.

Or you can check out the chapter about life in the cold -- "Ice is Nice" -- in my book Lizards in the Sky: Animals Where You Least Expect Them.

Best of all, go for a walk in the autumn woods, with your local guidebook and a berry bucket. Happy harvest!

http://www.claireeamer.com/