Darwin's finches
grrlscientist | January 7, 2010tags: evolutionary biology, immunology, immune response, antibodies, parasite, avian pox virus, Poxvirus avium, nest fly, Philornis downsi, birds, ornithology, Darwin's Finches, Medium Ground Finch, Geospiza fortis, Ecuador, Galapagos Islands, researchblogging.org,peer-reviewed research, peer-reviewed paper
A male Medium Ground Finch, Geospiza fortis, sits on a tree branch in Ecuador's Galapagos Islands.
Image: Jen Koop.
People often view the Hawaiian islands as a tropical paradise, the ideal vacation site, but you wouldn't agree with this assessment if you happen to be a bird. According…
grrlscientist | June 17, 2008tags: evolution, beak and body size, Geospiza fortis, inbreeding, mating patterns, reproductive isolation, sexual imprinting
A family tree depicts the evolution of the 14 species of "Darwin's finches".
(The focus of this study, the Medium Ground Finch, Geospiza fortis, is denoted with a red dot).
[larger image].
I have always been fascinated by the process of speciation throughout my scientific career because speciation is the "engine" that generates biological diversity. But what are the evolutionary mechanisms that lead to speciation? We know that mate choice can be one important…
grrlscientist | May 12, 2008tags: How and Why Species Multiply, evolution, ecology, Darwin's finches, Rosemary Grant, Peter Grant, book review
Peter and Rosemary Grant have been studying the phenomenon of speciation in Darwin's finches for 35 years, using every technique available to them from molecular biology to population ecology. They have written several books about various aspects of their work and even were the focus of a Pulitzer-prize winning book. But there has not been a comprehensive yet scholarly book that has captured the essential highlights of their lifetime work, until now. How and Why Species Multiply…