|
|
|
The Eye of the Storm
February 16, 1998
By Mark Hoover
previous
|
next
All is quiet, except for the sound of the surf upon the rocks
of Isla Isabella. It is midnight in the eye of El Niño,
and the Southern Cross hangs low in the sky, counterpoint to
the rising moon. Hanging my feet in the water as I write, I
drink in the serenity of the darkened boat and the delicate
breeze coming off the water. All are asleep...except me.
Yesterday I walked with Mike McPhaden along a beach walked a
century ago by another man looking for the pieces to a puzzle,
who came to the Galapagos during an El Niño year. His
name was Charles Darwin.
* * * * *
As we flew on Saturday from the cool mountains of Quito down
into the thick hot air of Guayaquil on the coast, I saw with
each passing mile a land increasingly inundated by the
floodwaters of what locals call simply the "fenómenos,"
or "phenomenon." As we drew closer to the city, the land
simply disappeared in many places, covered by vast sheets of
tea-brown water bearing a scum of foam, sticks, pieces of
houses, and other jetsam torn loose by El Niño's rains.
I could only imagine the misery of the inhabitants.
We changed planes in Guayaquil. Ominous clouds filled the sky,
seething as they headed inland, and a fine sticky rain hung in
the air. Our flight to the Galapagos would take an hour and a
half, all of it flying through more clouds like these.
Confounding my expectations, it was not raining when we
touched down on the crushed-lava tarmac of Galapagos' lone
runway. Hot, yes, and humid, but curiously still...and
everywhere, green shoots and vines the color of August apples
crowded the cacti and scrub.
A rattletrap bus took us a couple of miles to the harbor where
we joined the crew of the Orca, our boat. We also met the
naturalist and field guide who would help us find the evidence
of the changes El Niño brings to the archipelago. After
loading the considerable gear of the film crew, and pulling up
the anchor, we headed for the first stop: Isla
Bartolomé, in search of the Galapagos penguin.
Galapagos Penguin
|
|
Soon, we were threading between the tiny islands of Daphne
Major and Daphne Minor, both volcanic cone remnants protected
by palisade walls cut by the waves. Daphne Major looks like
one of those squat round footrests people put in front of an
easy chair. The island sags deeply in the center, creating a
bowl or amphitheater, in which an interesting saga has played
out.
Peter and Rosemary Grant of Princeton have conducted a unique
study of finches on Daphne Major for more than two decades;
their work was the basis of Jonathan Wiener's critically
acclaimed book, The Beak of the Finch. This tiny island has
revealed, through the work of the Grants, that evolution can
work on time scales once considered ridiculously short.
Indeed, the Grants have evidence that the finches of Daphne
Major somehow anticipate the changed environment of El
Niño years, and quickly produce numbers of variant
individuals with beaks and bodies more suited to the lusher
foods and conditions El Niño brings. These birds carry
in their genes a program for adaptation to El
|
|

Darwin's Finch
|
Niño that alters flesh and bone—scientists say
the genes are "expressed"—almost instantly, even in the
space of one breeding season. Obviously, to have created the
genetic potential for such a response, El Niño has to
have been here many times before. The "fenómenos" has
left its fingerprint in the DNA of living creatures who have
made a home out of a collapsed cone of cinders. These are the
same creatures responsible for Darwin's first glimmer of the
mechanisms of evolution. They are fittingly called Darwin's
finches, and El Niño is no longer cruel to them.
We moved on across the ocean toward Bartolomé, and the
clouds parted. I marveled at the weather. The heat and
humidity were stifling, but there was no rain, and only a
light chop in the sea. Only later would it start to make
sense.
Ahead, sunlight illuminated an obelisk jutting from the water;
its exotic, blackened spire beckoned, and we marked a course
to take us near. Slipping past it, we saw Galapagos penguins
standing and diving at its base. They waddled to the edge of
the lava, dove like Olympians into the warm sea, and shimmied
their tails as they climbed out of the water to repeat their
happy enterprise again. Yes, they were penguins all right: but
penguins standing on baked lava under an equatorial sun. They
caught Darwin's fancy, too.
Galapagos marks the northernmost latitude in which one can
find penguins, and the population here is obviously a relict,
or a group left behind when changing climate altered the
former range of the species, and left no avenue of retreat
(the Florida jaguar is a similar example). During the 1982 El
Niño, a lot—perhaps two thirds—of these
penguins died, creating concerns over their very survival. It
has taken almost two decades for them to recover. Our
naturalist tells us that so far this year, the casualties have
been mild. No one knows quite why; El Niño seems to
choose its victims with a roll of the dice.
Rounding the spire, we found a small bay, and set out in a
motor launch for it. Mike McPhaden jumps out of the boat,
ahead even of the film crew as we approach the beach. I know
what motivates him; I feel it myself. Sirenlike, the
|
|
Blue-Footed Booby
|
islands lure you toward them with a silent promise to reveal
the answer to questions you haven't yet put into words.
The abandoned nests of sea turtles ring the beach, cones of
sand with the middles scooped out. Fingers of black lava the
thickness of my thigh lie frozen on the sand, evidence of an
eruption not many centuries ago, judging from the lack of
erosion in the bubbled rock. The beach is littered with the
rock fragments created when these sizzling columns exploded
upon touching the sea.
We hike inland. As we traverse the stony soil, armies of tiny
lava lizards spring from hiding places, like frogs jumping
into a pond. Mike stoops at a fount of clear water emerging
from what seems solid rock—the porous rocks have been
filled with rainwater, more of El Niño's handiwork. The
crew sets up to film near the bay; Mike and I cross a sand
ridge and in a few minutes come to a cove on the other side of
the island. Blue-footed boobies lope and wheel through the air
a hundred feet up. Without warning, one, then another folds
its wings, rolls, and dives straight down into the sea,
disappearing. Moments later, they arise in a spume of bubbles,
sometimes with a fish in their beak. Boobies, too, suffered
mightily in 1982. This year, El Niño's effect is more
subtle. Mortality has been spotty, but the birds roam
endlessly, with a catch being the exception, not the rule. So
far, however, they have avoided disaster.
Sea Lions
|
|
As we walk along the water's edge, taking it all in, Mike
points to a pathetic scene ahead. The limp body of a small sea
lion rolls upon the beach, the waves pushing it ashore, and
then drawing it back into the surf. As it turns in the waves,
a flipper waves, Ahab-like, and we draw closer to see.
The still form is so perfect it seems an atrocity that the
life has gone out of it. With morbid curiosity, I look closely
at its face...and fall backwards into the water as the sea
lion suddenly awakens from a reverie and barks joy at his
newfound playmates. He had been napping, apparently, or just
enjoying the feel of the surf. We wad out into the warm water,
and the sea lion cavorts and barks and swims between my legs
with effortless speed. Without predators, the Galapagos sea
lion has never learned to fear. I say a silent prayer that no
humans will ever introduce the idea.
|
Flightless Cormorant
|
On our walkie-talkie, we learn that the film crew has chanced
upon some flightless cormorants, another species unique to
these islands, and we leave our idyll and head to the site.
Another fish specialist, the flightless cormorant is sensitive
to any changes in its food supply wrought by El Niño.
Although the waters here are ten or more degrees warmer than
normal—according to Mike, about as warm as seawater can
get—this year just enough fish remain to maintain the
cormorants and their Galapagos brethren. Why? We do not know;
fish populations crashed severely all along the Peruvian
coast. And there are months to go before the fenómenon
takes its leave.
The sun is setting as we approach our boat and the dinner of
Peruvian potatoes and ceviche that awaits. Mike and I say
little. Mike has spent his life studying El Niño from
an oceanographer's point of view, but this is the first time
he has actually been inside El Niño himself, rather
than with a scientific instrument. His data is no longer
numbers; it is his own five senses. I ask him what he is
thinking. He pauses a long moment, as he reorients himself to
the realm of words.
"We are in the eye of the storm here, aren't we? What a
paradox...where El Niño is most intense, it is least
visible....." He pauses. "There's a lesson in what we saw
today, a symmetry that reminds me of El Niño's
essential nature. That's the key word: nature. Life has
adapted here to El Niño, and that's the most compelling
proof I can think of that it is part of the natural
give-and-take, one of the living rhythms of the Earth, its
oceans, and its atmosphere." He pauses again. "During El
Niño, it's not the Earth that's out of balance. It's
us."
previous dispatch
|
next dispatch
|
table of contents
Photos: (2,3,5) Marcia Storkerson.
Anatomy of El Niño
| Chasing El Niño |
El Niño's Reach
Dispatches |
Resources |
Mail |
Site Map |
El Niño Home
Editor's Picks
|
Previous Sites
|
Join Us/E-mail
|
TV/Web Schedule
About NOVA |
Teachers |
Site Map |
Shop |
Jobs |
Search |
To print
PBS Online |
NOVA Online |
WGBH
©
| Updated November 2000
|
|
|