Inside The New York Botanical Garden

From the Field: Bill Buck in Cape Horn, Day 4

Posted in Bill Buck, From the Field, Science on February 3 2012, by William R. Buck

January 20, 2012; Isla Hoste, Estero Fouque, approximately 55º11’S, 69º35’W

After yesterday‘s late night, we were all slow to rise this morning. Which turned out to be okay, because at around 5:30 a.m. the crew decided to move to our next site; the movement of the ship was all the incentive we needed to sleep in.

When the ship stopped we got up for breakfast. Today’s first site is–like yesterday afternoon’s site–on Isla Gordon. From the map this site appears to have a glacier-fed stream that enters the sea near the end of a small sound, and this is indeed what we have found. But what we couldn’t see from the map is that the glacier is over the rise of a tall, steep slope, and after yesterday’s exhaustion, there wasn’t much enthusiasm for such a climb. So most of us chose to collect specimens on a relatively flat Magellanic tundra.

Magellanic tundra
Magellanic tundra

About halfway through the morning I reached a point where I could see a large cliff face only about a 10-15 minute walk away. So, instead of heading for a forest I had been eying, I struck out for the cliff. As soon as I arrived, I knew I had made the right decision; I immediately started finding interesting mosses. The cliff face was mostly wet, but in certain places, over-hanging rocks created little dry areas, and these dry areas were host to a whole different suite of mosses.

maurico12

maurico12
Picture 6 of 6

The next thing I came across was a bit of a surprise: A medium-sized tree that had recently been gnawed down by a beaver. Beavers are an introduced, invasive species that are causing extensive damage in the region because they have no local natural enemies.

Back on the Don José Pelegrín
Back on the Don José Miguel

Mink–similarly released after having been initially imported by the fur industry–are also causing havoc with local bird populations by feasting upon their eggs. Both species are spreading at an alarming rate, and, unfortunately because the climate here is so different from the animals’ native ranges, the fur is less desirable–and thus the industry abandoned.

Lunch was a bit late today, but because of that I was able to get the morning’s collections numbered before heading out to the afternoon’s site. I am trying to get back into a routine of numbering my collections immediately upon returning from the field.

This afternoon’s site was once again chosen from a map rather than from personal experience. The map showed a river draining a series of three lakes. I slowly trudged up the hill and when I reached the summit I could see a small lake below me. Even though a number of our group were ahead of me, I could see no one. I worked down to the lake and saw a dripping cliff face that drew me to it. I spent a good hour and a half collecting along the cliff and found many interesting species.

Isla Gordon, looking down
Isla Gordon, looking down

However, I was puzzled that the map showed three lakes, but I could only see one. So, I climbed another hill to survey the area. From there I could see the drainage of my lake down to the sea, but no other lakes. It turns out that to have seen the other two, larger lakes, I would have needed to climb the rise on the other side of my lake. Oh well! My new found aerie was useful though, because I noticed that far in the distance I could just see the pile of bright orange life jackets we had left on the shore. This made me realize that they were a very long way away, and so I started heading towards them right away, working down the outlet stream from the lake. My progress was slowed by the numerous bryophytic sirens that called me down to the stream. However, I was still the first one back at the meeting point.

Picking up Ernesto and Juan
Picking up Ernesto and Juan

Once we were all back on board, our captain turned the ship toward tomorrow’s collecting site, Estero Fouque. This long, narrow sound has numerous glaciers along it. Tomorrow we should be collecting immediately adjacent to these glaciers. I doubt anyone will sleep in tomorrow morning!

Ed. note: NYBG scientist and Mary Flagler Cary Curator of Botany, Bill Buck is currently on expedition to the islands off Cape Horn, the southernmost point in South America, to study mosses and lichens. Follow his journeys on Plant Talk.

Bill Buck’s Previous Reports From the Field:

2012

January 19, 2012; Chile, unnamed sound on north-central coast of Isla Hoste, approximately 55º00’S, 69º12’W

January 18, 2012; Canal O’Brien, just south of Isla O’Brien, 54º55’S, 70º35’W

January 17, 2012; Punta Arenas, Chile

2011

July 15, 2011; Hobart, Tasmania, Australia

July 14, 2011; Pyengana, Tasmania, Australia

July 13, 2011; Weldborough, Tasmania, Australia

July 12, 2011; Hobart, Tasmania, Australia

July 11, 2011; Hobart, Tasmania, Australia

February 8, 2011; Punta Arenas, Chile

February 5, 2011, unnamed sound northwest of Isla Georgiana

February 4, 2011, unnamed sound directly east of Seno Mama, Chile

February 2, 2011, Seno Courtenay, northern arm, Chile

February 1, 2011, Seno Courtenay, Chile

January 31, 2011, Canal between Isla Georgiana and Isla Clementina,, Chile

January 30, 2011, Unnamed sound on south side of Brecknock Peninsula, NW of Isla Georgiana, Chile

January 29, 2011, Isla Aguirre, Seno Quo Vadis, Chile

January 26, 2011, Punta Arenas, Chile

January 24, 2011, Seno Chasco, just north of isthmus to Brecknock Peninsula, Chile

January 23, 2011, Isla Grande de la Tierra del Fuego, Puerto Consuelo, Seno Chasco, Chile

January 22, 2011, Isla Grande de la Tierra del Fuego, Seno Brujo, Chile

January 21, 2011, Isla Grande de la Tierra del Fuego, Seno Brujo, Chile

January 20, 2011, Isla Grande de la Tierra del Fuego, Seno Bluff, Chile

January 18, 2011, Punta Arenas, Chile

January 16, 2011, Punta Arenas, Chile