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Migration in birds is an extraordinary phenomenon--what drives them to fly thousands of miles over inhospitable territory twice every year? The dangers they face in the journey are endless--from predators to bad weather to getting lost.
A long-standing mystery in ornithology revolves around the origins of migration: did birds in the tropics begin by heading north or did birds in the north start to head south? Using computer models combined with genetic data on the evolutionary relationships of a large group of songbirds to look backwards through the evolution, Field Museum graduate student Ben Winger and colleagues found that the north-to-south theory was the more likely scenario.
The birds they based their study on are the nine-primaried oscines, a fancy name for the group of songbirds that includes many familiar ones including blackbirds, orioles, sparrows, thrushes, and warblers like the Black-and-white Warbler (Mniotilta varia) pictured here.
The paper was published online yesterday--you can find a blog post about the study on the National Geographic website here:
phenomena.nationalgeographic.com/2014/08/04/on-the-evolut...
(c) The Field Museum, photo by Arlene Koziol
J Comp Neurol. 2005 Mar 14;483(3):329-40.
Neuronal generation, migration, and differentiation in the mouse hippocampal primoridium as revealed by enhanced green fluorescent protein gene transfer by means of in utero electroporation.
Nakahira E, Yuasa S.
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FICCI, in collaboration with the ILO and IOM, plans a conference on Migration and the SDGs focussing on indicators applicable for the Indian context. Participants will be from the Government of India (NITI Aayog, and relevant ministries.
American White Pelicans flying over the Mississippi River at La Crosse, Wisconsin, during their annual migration to nesting grounds in northern Wisconsin/Minnesota and southern Canada . . . after spending the winter along the Gulf of Mexico from Mexico to Florida. These were just a small number of hundreds and hundreds of pelicans which flew over La Crosse this morning during a 15-minute span.
APRIL 16TH, LONDON - Alberto Brandolini explores some conceptual tools to model and manage transitions involved in a typical agile migration process, and how they could turn useful in our everyday job. See the SkillsCast recording (Film, code, slides) at: bit.ly/10UMKN7
Commonwealth People's Forum 2018 at the Queen Elizabeth 11 Conference Centre Westminster, London UK.
London April 16th 2018
Reimagining Migration
Photo©vickicouchman
vickicouchman.com
07957226911
The annual shorebird migration from the Arctic to South America with a resting period in the mud flats of the Bay of Fundy.
J Comp Neurol. 2005 Mar 14;483(3):329-40.
Neuronal generation, migration, and differentiation in the mouse hippocampal primoridium as revealed by enhanced green fluorescent protein gene transfer by means of in utero electroporation.
Nakahira E, Yuasa S.
Commonwealth People's Forum 2018 at the Queen Elizabeth 11 Conference Centre Westminster, London UK.
London April 16th 2018
Reimagining Migration
Photo©vickicouchman
vickicouchman.com
07957226911
wildebeest successfully manage to cross the mara river during the great migration across the serengeti
Recommendations from the EJN's global report on media and migration: ethicaljournalismnetwork.org/en/contents/press-release-mi...
This photo doesn't do Kathy Hinde's work justice; Piano Migrations was a subtle, haunting piece that was in turn beautiful and yet faintly disturbing - it really did look as if the piano was full of living, fluttering birds.
After Sarah Nicolls's Inside Out Piano last year, I guess the challenge for Thomas will be to come up with another work involving a suspended piano in 2012...
Commonwealth People's Forum 2018 at the Queen Elizabeth 11 Conference Centre Westminster, London UK.
London April 16th 2018
Reimagining Migration
Photo©vickicouchman
vickicouchman.com
07957226911
a Sat eve. a view in large would be life size. the migration of the Monarch. The north shore of Lake Erie 15 miles east of Pt Pelee