Manila Observatory Brownbag Lecture: “Alpha, beta, and gamma diversity of ferns on tropical islands of different sizes in the Philippines and Indonesia” by Dirk Karger

The “Brownbag series” at the Manila Observatory is a series of short presentations held every Wednesday at 11.30 am-12.30pm at the observatory. This series provides an informal venue for updates and discussions on the latest research and development on climate and environment related topics, including air quality, disaster risk management, climate change science and policy.

As part of the “Brownbag series”, you are warmly invited to attend this week’s talk:

Dirk Karger
Alpha, beta, and gamma diversity of ferns on tropical islands of different sizes in the Philippines and Indonesia

by Dirk Karger

September 15 (Wednesday), 11.30 am at the Klima conference room, Manila Observatory.

Dirk Karger is currently a Ph.D. student at the Institute for Systematic Botany, University Zurich in Switzerland. In 2009, he has obtained his Diplom (Msc. equivalent) at the University of Goettingen in Germany.

Abstract

Understanding the causes determining biodiversity and especially the variation of community richness and composition, is one of the longest standing, and at the same time most current, topic in ecological and
biogeographical research. Many questions concerning biodiversity haven’t been answered until now. Why biodiversity at all? Why do we need thousands of species on earth? Why not just a few ones? Why are there regions in the world rich on species and why are others poor on species? What will happen if more and more species disappear from this planet?

In the last two decades, exciting new theoretical developments by scientists have opened whole new avenues for biodiversity research. My current research tries to apply these new approaches to tropical ferns. Especially this very old group of plants which inhabits the earth for millions of years shows clear-cut diversity patterns in tropical mountains and is of global distribution. To get an idea of how biodiversity changes from one region to another, I investigate the change in species composition on tropical islands of different size in Indonesia and the Philippines. Islands have been used often to investigate dynamics of Biodiversity, but unfortunately many of these studies are just theoretical models. Just a few studies really compared many islands with each other to prove some of these theoretical models. My research focuses especially on beta diversity (the change in species composition) on 13 islands span from small volcanic islands in the Philippines to the 2nd biggest island in the world, Papua.

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Physics News and Features from Ateneo de Manila University

One Response to Manila Observatory Brownbag Lecture: “Alpha, beta, and gamma diversity of ferns on tropical islands of different sizes in the Philippines and Indonesia” by Dirk Karger

  1. Arne says:

    This page popped out of g**le when I was looking for blogs covering recent publications on beta diversity. Sice Dirk deals with beta diversity, he would know the recent publications of Hanna Tumisto (Ecography, Oecologia) and Cho et al. (PhilTransRSocB). Beta div seems to be a hot potato. Let’s pass it on to you, reader. 🙂

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