From last Summer, a baby Bluejay trying to get an adult to show up with food. Click for full size.
All photos © C. Ford. All rights reserved.
Aquilegia. Click for full size.
Columbines have been important in the study of evolution. It was found that Sierra Columbine (A. pubescens) and Crimson Columbine (A. formosa) each have adapted specifically to a pollinator. Bees and hummingbirds are the visitors to A. formosa, while hawkmoths would only visit A. pubescens when given a choice. Such a “pollination syndrome”, being due to flower color and orientation controlled by their genetics, ensures reproductive isolation and can be a cause of speciation.
Aquilegia petals show an enormous range of petal spur length diversity ranging from a centimeter to the 15 cm spurs of Aquilegia longissima. Selection from pollinator shifts is suggested to have driven these changes in nectar spur length. Interestingly, it was shown that this amazing spur length diversity is achieved solely through changing cell shape, not cell number or cell size. This suggests that a simple microscopic change can result in a dramatic evolutionarily relevant morphological change. Source.
From Lofty.
Never heard of Black Wattle before. It’s a very beautiful and striking wood. It’s an Acacia, but there are so many Black Wattles!
I have a thing for fence posts myself, they have been frequent subjects – some of them have such character. I really like this shot. Thanks, Lofty!
When Given Colored Construction Paper, Wasps Build Rainbow Colored Nests.
It’s unnerving to discover a wasp’s nest dangling outside your house, but perhaps it would be a tad less so with the help of biology student Mattia Menchetti who cleverly realized he could give colored construction paper to a colony of European paper wasps. By gradually providing different paper shades, the wasps turned their homes into a functional rainbow of different colors.
The Extraordinary Iridescent Details of Peacock Feathers Captured Under a Microscope.
In this series of photographs featuring the delicate details of peacock feathers, photographer Waldo Nell relied on an Olympus BX 53 microscope to take hundreds of individual shots that were combined to create each image seen here. The process, called photo stacking, blends dozens or even hundreds of photos taken at different focal points and then stitches them together to extend the depth of field. At this level of detail the feathers look more like ornate jewelry, thick braids of iridescent necklaces or bracelets, rather than something that grows organically from the wings of a bird.
By day Nell is a software engineer in Port Moody, BC, Canada, but is fascinated by technology, science, and nature, all of which he merges in his photography practice. You can see more of his work on Flickr.