debor042

I admit that I ended that last post a bit unclear. But diatoms, it should be said, aren’t (or, rather, shouldn't be said since I shouldn't use double negatives. Ah, well.). Not physically, that is; you see, diatom cell walls are made of silica (glass), and that feature is actually incredibly important (not to mention gives rise to beautiful 'micromanipulations' like this one by Klaus Kemp - different colors in part because of different thicknesses of their glass). Diatoms arose between 180 and 225 million years ago – youngsters in the algal world (compare that to the geezer cyanobacteria of 3+ billion – way vintage) – and in so doing utilized an under-used, widely available resource that set them apart. The genealogy (or “systematics”) of diatoms has since expanded to include anywhere from 20,000 to over 1 million species that span almost every aquatic or semi-aquatic habitat imaginable – oceans, lakes, rivers, moss, soil. In those habitats they can be suspended in ...

This post was written by Nick Schulte, a Master's student in Evelyn Gaiser's lab at Florida International University.  So where would you go to study how Everglades algae respond to increased nutrients from sea level rise? The Florida Everglades, right? That’s what I thought. But I went to Iowa. Iowa Lakeside Laboratory , more specifically, on the shores of Lake Oko boji (yes, I still confuse it with that big lake in the northern ‘Glades). A bit clearer but still unhelpful? This summer I attended two courses at Lakeside: Ecology and Systematics of Diatoms and Ecology and Systematics of Freshwater Algae. In that order – specific to general, that’s how it’s normally done, right? Start looking at the fineries of a specific group of algae (“the algae that live in glass houses”, or diatoms) and then see how they fit into the bigger picture of general phycology (“phykos” for “seaweed”). It actually makes a lot sense, especially when my research pays particular attention to the cha...

Flying over the Colombian Andes from Medellin to Nuqui in a small, 20 passenger propeller plane, five scientists peer out the window to look at the  bosque  (Spanish word for forest) covering the mountains below for as far as they could see. I was one of those scientists. Dotted throughout the forest, I can see indigenous communities thriving in small clearings with smoke billowing from small fire pits. Then, out of nowhere, the mountains drop off, the Pacific Ocean appears, and the plane banks hard to starboard. Finally! My first glimpse and the reason why I was making a trip out to Pacific coast of Colombia: mangroves. My first trip to Colombia and I get to see some of the most pristine mangroves in the world. Why am I so excited about mangroves? There is something about the smell of the swamp, the harsh conditions, the incredible resilience of the trees, and the complex hydrology that draws me in. Mangrove is the general term used for a group of salt-tolerant tropical hardw...

This post was written by first-time blogger, grad student Edward Linden, of Dr. Rene Price's of hydrology at FIU ( http://www2.fiu.edu/~pricer/ ). ____________________________________________________________________________           Less than a year ago, all that I knew about Everglades was its general location in Florida and the presence of alligators. Through numerous scientific talks given at FIU, my classes, and my research, I have gained a great deal of knowledge about the history of the Everglades as it relates to my field of study. The Saturday that I spent in Gainesville at UF opened my eyes to an entirely new aspect of the Everglades that I had not previously considered; the political side.           I was well aware of the detrimental anthropogenic influences that the region has experienced, so I knew that humans were intimately involved with the changes that have occurred over the pas...