Showing posts with label tropical forest. Show all posts
Showing posts with label tropical forest. Show all posts

Wednesday, July 29, 2009

On Germany and the Tropical Forests



I’m in Marburg, Germany, attending the joint meeting of ATBC & gtoe, two international professional societies dedicated to the study and conservation of tropical forests. I’ve had more than one eyebrow lift in response to this. “Tropical ecology, in Germany?” they ask. Even my German cousins seem unaware of the many excellent ecologists their country has produced. I say to them, what better place for the academy to meet than in a 500-year-old university? What better place to celebrate the adventure of discovery in the tropics than in the homeland of Alexander von Humboldt?



Of course, 200 years ago when Humboldt did the groundbreaking work that gave rise to biogeography, South America was a very different place. The forests were dense, impenetrable, unconquerable. In Humboldt’s time, a conference like this would have been an endless unfolding of discovery after discovery after exciting discovery. Things are different now. The discoveries are still out there waiting to be made, but we have precious little time to uncover them as we rush to save the forests themselves. So now when tropical ecologists get together, in addition to all the exciting discoveries, there is an endless discussion of “What are we to do?”, a sort of intellectual wringing of hands. I’ve heard some hopeful news these past few days, but for the most part the overall scenario is pretty depressing.



So today I decided to play hooky and take a short break from it all. I took the back way up to Landgrassen Castle, walking sunflecked paths through young woods. I spotted a few familiar birds here and there, but otherwise it is an empty forest. The wolves and wisents and all the other interesting creatures that once inhabited Europe are long gone, but it was refreshing and beautiful and a worthy use of my time. I had my lunch at the foot of the castle. Landgrassen is tall but not towering. It sits solid and wide, a stone monument that defies the passage of time. For a moment I thought it would be nice to look for a pamphlet or small book on the history of Marburg, but there is much to be said for simply wandering through the cobblestone streets and absorbing the feel of it all. I like to imagine the echoes of time, and to envision the spirits of all the people who lived and died in this world.



Is history not, in some sense, imagined? I’ll have to pose that question to a true historian some day.



Marburg lies but a few kilometers from the obscure village of Kirchundem, the childhood home of my paternal grandfather. These lands gave birth to the surname “Gastreich” in the 14th century, during the same period Landgrassen Castle was built. My origins, but not my home. Still, there’s something familiar about this place in a deep organic kind of way. The biologist in me might say my methyl groups are buzzing.



I first came to this area in 1975 with my grandfather. I still remember sitting on his lap in the streets below Bitburg Castle. He filled my head with all kinds of fairytales. Or perhaps it is fairer to say he indulged the fantasies of an eight-year-old girl who wanted very much to believe she had something of a Princess inside of her. The first Gastreich lived in Bitburg Castle, and the surname derives from Old German meaning “taster of wines”. So I was told my ancestors had a very noble job, being winekeepers for the counts of Bitburg. Years would pass before I learned more about the reality of those times, at which point it occurred to me the first Gastreich was probably screening for poison.



History in its reality is so much more interesting than our fantasies allow. It is full of heroic, visionary exploits like those of Humboldt. But it is also full of terrible things humans have done to each other over and over and over. Castles exist in part because humans have such a persistent tendency to attack each other with all manner of cruel weapons. Yet castles are beautiful. They inspire awe, imagination, and romantic notions of timeless perspectives. How does one reconcile this paradox of beauty arising from brutality? I don’t know, and I don’t think I’ll ever have the answer to that question. But despite the barbarities of the feudal system that made them possible, I love castles. I look at Landgrassen and I think, “We can do more than destroy. We can build things that last. We can leave monuments of beauty that inspire generation after generation."



We did this with our castles, and I believe we can do it again with our forests.

Sunday, March 8, 2009

Breadfruit


Breadfruit, Altocarpus altilis, belongs to the family Moraceae, which includes the mulberry and figs. Native to Malaysia and the western Pacific, the tree is now cultivated throughout the tropics.

Like many members of the Moraceae family, breadfruit has large tough leaves with a milky latex. In some regions, the latex of breadfruit is used for caulking boats.

The fruit is about the size of a small soccer ball. Rich in starch, it is a staple food in many regions. It can be roasted, baked, fried or boiled. With a little salt, it tastes more or less like a potato.

Breadfruit has been cultivated by humans for a long time, and many of the hybrids and cultivars are seedless. This means that they cannot be dispersed without the aid of humans. The fact that breadfruit is completely dependent on humans for dispersal has made this a useful tool for elucidating patterns of human migration in the Pacific Islands. By applying molecular dating techniques to hybrids and cultivars, scientists can trace the movement of breadfruit across the Pacific Islands through time. This data can then be combined with archeological information to infer migration patterns of humans.


Zerega, Nyree J. C., Diane Ragone and Timothy J. Motley. 2004. Complex origins of breadfruit (Artocarpus altilis, Moraceae): implications for human migrations in Oceania. American Journal of Botany 91:760-766.)

Wednesday, February 18, 2009

Good News for Regeneration of Tropical Forests



Tropical Forests Recover From Clear-Cutting
Emily Sohn, Discovery News


Feb. 18, 2009 -- Deforestation is generally considered to be bad news, especially in the tropics. But there may be some hope: In many places, trees are growing back, according to new research, and some of the new forests are nearly as diverse as the old ones were.


The work adds to a growing sense that tropical forests are more resilient than scientists previously thought and that second-growth forests are far from worthless.




To read the full story, visit the Discovery Channel website at http://dsc.discovery.com/news/2009/02/18/deforestation-trees.html