Platycercus elegans
grrlscientist | December 24, 2009tags: Crimson Rosella, Pennant's Rosella, Platycercus elegans, Australian King Parrot, Alisterus scapularis, birds, mystery bird, bird ID quiz
[Mystery birds] Australian King Parrots, Alisterus scapularis (3 on right), and Crimson Rosellas, sometimes known as Pennant's Rosella, Platycercus elegans (13 on top, left and bottom, also one in lower right side), photographed at Lamington National Park, west of the Gold Coast, Australia. The bird at the bottom is about to jump into the center, to the discontent of the other birds. [I will identify these birds for you in 48 hours]
Image: Matthew…
grrlscientist | August 1, 2008tags: researchblogging.org, evolution, speciation, ring species, phylogeography, landscape genetics, crimson rosella, Platycercus elegans, parrots, birds, Australia
Crimson Rosella, Platycercus elegans.
Image: Australian Broadcasting Corporation.
One of the challenges facing those who believe that evolution cannot create new species is explaining the problem of "ring species." Ring species are a group of geographically connected populations that can interbreed with nearby populations, but cannot breed with those populations that exist at each end of the cline (figure A). These populations…