Showing posts with label Charles Darwin. Show all posts
Showing posts with label Charles Darwin. Show all posts

Thursday, March 22, 2007

Galapagos day 12 – Cruise day 7 – James (Santiago) Island




Our last full day on the boat, today was a jam-packed and enjoyable adventure. We rock up next to a large, forest-covered volcano. Ocean waves hit against the sheer cliffs made of compacted rock, covered with visible soil, then greenery.

We took a dinghy to land at Puerto Egas (James Bay) of James Island (also called Santiago). Again, we came in onto a black sand beach and walked around on lava rock and terracotta tuff cone. Inside the tuff cone, water from the ocean filters in and makes an expensive, good quality salt.

In the 1960s, a man named Salinas opened a salt mine here. The last owner was Hector Egas, who the bay is now named after. He tried to found a settlement in Santiago, but it was hard with little freshwater and few ships. He eventually went broke.

Another change in the island is the disappearance of the 74,000 goats that used to live there. Juan told us how he volunteered with the goat eradication project on a neighboring island. Nineteen hunters, two volunteers, and a chopper with a gunman covered 30 square kilometers. Juan said he did it for the real life ecology experience.

“By participating, you learn there are a lot of things about conservation that aren’t necessarily right. You see how we can screw up nature and it’s too late or too early to do something about it.”

On Santiago, the goat elimination was successful. But the result was the appearance of invasive mallows, which the goats used to control. Juan didn’t consider it a serious problem. He said it’s a low level of vegetation and only during the rainy season, so it’s not taking space for anything else. When dry season comes, they will put on herbicide so the next generation of seeds don’t germinate. It will take five to six years because of the many layers of seeds.

On the beach, we found a few week old sea lion and marine iguanas who had drawn designs in the sand with their tails. We walked on a path through white cordial, thorny fortia, incense trees and shore petunia. Along the path, we found the discarded skeleton of a baby sally lightfoot crab. They grow out of and discard everything, including their eyeballs.

Darwin himself spent nine days on this island, climbing the Sugar Loaf Tuft Cone. As we watched the sea lions, Galapagos fur sea lions, pelicans, dolphins, marine iguanas, oyster catchers, a Galapagos hawk and a ring plover, among other birds and animals, I imaged Darwin seeing the same scenes, but so much more isolated from civilization.

Juan showed us a place along the lava cliffs that is called Darwin’s toilet. It’s a round hole in the rock in which frothy white ocean water builds up, then suddenly “flushes” and drains out, before filling again.

Later in the morning, as we sailed towards Bartolome, on the other side of James Island, we saw the beautiful scenery of rocks shaped as an elephant and a bishop. We passed Bucaneer’s Cove, where Darwin, and many pirates landed for fresh water. The ensconced nature of the cove helped keep the criminals hidden.

Best of all, we saw a couple of bryde whales. Together with one other tourist boat, the Flamingo, which doesn’t treat its waste and emitted a smell like a massive fart, we circled round the whales, allowing us to see them rise out of the water several times, often quite close by. It’s truly amazing to look out over the blue waters and suddenly see a submarine-sized mammal emerge. At the same time, a manta ray glided toward us, a Pacific Green sea turtle paddled by, and a sea lion was swimming unusually far from shore. I felt surrounded by large aquatic life and it was so rewarding to see them in their natural habitat.

In the afternoon we rode up to Bartoleme. Walking across the high sand dune on the inlet, we reached a bay on the other side, where we could see white-tipped sharks floating in the clear water, just a few feet from us.

We returned to the ochre sand beach where we’d landed and went snorkeling around pinnacle point, a large vertical outcropping. Again, the water was murky (the National Park determines which places are allowed for snorkeling, and at least at this time of year, most of them seem to be murky), but we did come across several schools of fish. Most fun was finding a penguin in the water. In the process of fishing, he flitted by me, just a few inches away, at least three times. Given the uniqueness of penguins overall in this region, it was especially nice to get so close to one.

Some of the group came close to white-tipped sharks. I didn’t and was just as glad not to, after one boatmate told us about a tourist getting bit by a bull shark a week before our trip starting. He was diving at dusk (which is the shark’s feeding time) and a bull shark is much more dangerous than a white-tipped. But still, I preferred to not get too close.

Our final activity of the day was to climb up the tall terracotta tuff cone on Bartholeme, to a lighthouse that offered a beautiful overlook. This required climbing 366 stairs, which I ran up as much as possible, trying to give my heart the exertion it has lacked in the past week. At the top, I was able, again, to get a true sense of the volcanic and geologic activity in the area. Looking out over the very small island, I saw a real-life relief map of spatter cones (smaller parasitic cones). It looked like a mars-scape that was formed yesterday. Only a couple of plants grew in that environment, the leather leaf, prickly pear, salt wart, sperch and the beautiful silver great mat plant. We waited up on the overlook until all the other tour groups had left. We watched the sun begin to descend, then walked down into the sunset.

On the boat, we drank a farewell cocktail while saluting the staff. And for dessert, we had a banana-nut cake covered with marshmallow crème and carmelized syrup, fruit and cinnamon (it tasted much better than it sounds). Our final treat was our guide making the mating sounds of a giant tortoise, a request he’d been putting off for the past several days.

And now it’s almost time to go. This evening we have to pack everything up and accept that tomorrow night, another couple will be calling our temporary abode their new home. We have one small morning adventure to go, then it’s on a plane to Quito.

Sunday, March 18, 2007

Galapagos day 8 – Cruise day 3 – Floreana Island




Today was a comparatively slow day. After an eventful morning, we’ve pretty much had the rest of the day off. The focus today is more on the staff – who work 9 weeks in a row before receiving three weeks off. Today they were allowed to play soccer on a field on Floreana island and we spent the afternoon cruising back to our starting point in Puerto Ayora so that they could spend the evening and night with their families.

So I’ll insert some general information about the Galapagos here. The Galapagos islands attracted 146,000 tourists last year. It’s the most diverse marine ecosystem in the Pacific and is full of endemic species, meaning that the species are found only there. Half of the birds and most of the reptiles are endemic. It’s also unique in that there are few predators, meaning that the animals lack the fear they posses in other environments, where they have to worry more about their survival. This makes for easy wildlife watching by visitors.

Remarking on the tameness of the birds, Charles Darwin wrote: “There is not one which will not approach sufficiently near to be killed with a switch, and sometimes, as I have myself tried, with a cap or hat. A gun is here almost superfluous; for with the muzzle of one I pushed a hawk off the branch of a tree.”

He told the story of a boy on Floreana sitting by a well with a switch in his hand, which he used to kill doves and finches as they came to drink. He already had a small heap for dinner and said he was in the habit of constantly waiting there for the same purpose.

“We must conclude,” wrote Darwin, “that the birds, not having yet learnt that man is a more dangerous animal than the tortoise…disregard us, in the same manner as magpies in England do the cows and horses grazing in the fields…I have not not met with any account of the land birds being so tame, in any other quarter of the world, as at the Galapagos and Falkland Islands.”

The islands themselves were first hidden on the sea floor. As lava flows accumulated steadily, they eventually rose above the surface as volcanic cones. What used to be ocean became new islands, empty of life and ready to receive organisms. For Darwin, as well as subsequent naturalist-oriented visitors, it offered the opportunity to look at a new land and watch the development of naturalist history.

At 7 in the morning we took off in our dinghies for Punta Cormorant, Floreana, where we landed on a beautiful half-moon beach. The soil had a slightly greenish tint from the volcanic olivine. Unlike yesterday, where we were among hordes of tourists, only one other boat was at this island with us. And after they left, we were alone. While we saw less animals today, the feeling of being alone in this remote nature made up for it.

We followed a trail to a lagoon, where flamingoes waded in the water. About 50 flamingoes spread out across the large body of water. The adults were dark pink on the head and rear, light in the middle. The juveniles were a uniform light pink. They stirred up the mud with their legs, forcing crustaceans to come up to feed on. Each flamingo could eat over four pounds a day of aquatic insects. Elegant black neck stilts walked along the edge of the shore, looking for small crabs.

Although the wildlife was more limited than on Espanola, the island felt remote, quiet and peaceful. Only one other boat had been there that morning besides us. In the light breeze, and the melodic chirping of the warblers, I could see and feel the quiet tug of earth’s history.

A short distance away, we arrived at a remote and beautiful beach, where turtles lay their eggs. It’s now the season for laying eggs and turtle tracks, moving from the ocean to the high sand, covered the shore. At the top of the sand were several holes, where the turtles laid 80-120 eggs each. Less than one percent of them will make it to adulthood. At one end of the beach, a single fresh track stood out from the rest of the water-smoothed sand. Juan said it probably was made last night. It’s unfortunate that the park doesn’t allow nighttime visits because it would have been spectacular to stay up and watch the turtle come in.

The Green Pacific Sea Turtle is the only one that nests in the Galapagos. Of the 80-120 eggs laid by a female, less than one percent of them make it. The baby turtles come out of the sand holes at night, at the same time their mother left them three months earlier. Then they leave for 20 years, until they return to breed. During those 20 years, the turtles are lost and very little information exists on what happens during those first two decades of life.

We circled around to the other side of the lagoon, looking at birds and plant life along the way. I especially liked the pearlberry, a plant that produces berries looking like shiny, oval pearls.

As we left on our dinghy back to the boat, we passed a lone Galapagos penguin, fishing in the water. This type is the second smallest penguin in the world.

A little while later we went out to snorkel at a nearby spot, Devil’s Ground. While the water was a bit murkier than Juan said it was last week, we were still able to see several white-tipped reef sharks, a brightly colored azure parrotfish, lots of little angelfish and creole fish (which appeared grey, but are really red). Best of all were two Green Pacific Sea Turtles we found swimming underwater, looking prehistoric as they glided under the waves with their fins and massive round bodies.

In the afternoon we had a very short stop at a place called the post office. It’s been made into a tourist destination when I think it’s really an excuse to be at a place where the crew can play soccer. It’s an old wooden barrel where passengers put addressed postcards. Visitors rifle through them and if they find one from their country they take it and mail it free of charge.

The path continued on for 16 kilometers Puerto Velasco Ibarra but unfortunately we weren’t given time to follow it. I’d be very interested in visiting that community of 80, especially after reading the story of its founding.

We had several hours on the boat to spend reading or relaxing. While cruising to the island of Santa Cruz, with the blue waters of the ocean all around us, our guide spotted bottle-nosed dolphins jumping out of the water ahead. He called us all onto the deck and we watched as they swam toward our boat and rode in the wave caused by our bow. Standing on deck, we watched up to eight dolphins at a time swimming underneath and alongside our prow. Some of them were huge – grey and sleek and elegant. Occasionally, they’d come up for air and I could see the large, round blowhole, their version of a nostril, on top of their heads. That was a pretty magical and surreal moment. Juan said that they see dolphins on about one of every two trips across that stretch of water. I’m glad we lucked out.