5 posts tagged with biology by filthy light thief.
Displaying 1 through 5 of 5.
From 1851 to 1858, Henry David Thoreau noted a number of natural occurrences in detail, including the first flowering dates for over 500 species of wildflowers in Concord. Additionally, Alfred Hosmer, a botanist in the same area, had recorded the flowering dates of over 600 species of wild plants in 1878 and from 1888 to 1902. With that data, Richard Primack, a biology professor at Boston University, and fellow researcher Abraham Miller-Rushing spent years aligning old plant names with current names to study the change flowering patterns from the recorded past to present. Their phenological study concluded that plants in Concord, on average, are now flowering 10 days earlier than they were in Thoreau's time (full article for the journal BioScience). [more inside]
It's pretty widely known that there have never been snakes in Ireland, so who did Saint Patrick chase out? The case has been made that the story of Saint Patrick chasing out druids (snake-tattooed pagans) is also a myth (and Patrick wasn't even Irish). But that doesn't mean there are no reptiles in Ireland. The only native land-based reptile is the viviparous lizard, though there are other reptiles that are semi-inhabitants of Ireland. And this brings us to the the amateur survey of Ireland's lizards, newts, frogs and slow worms, one of a number of such surveys hosted by Biology.ie, "Ireland's premier Biodiversity Awareness portal."
In temperate climates, "fairy rings" appear in grassy meadows and lawns, and these are caused by fungi, with some rings expanding for hundreds of years. But in the western part of Southern Africa, there are a different sort of "fairy circles," barren circles that are surrounded by long-lived perennial grasses. The Himba people, an ethnic group in northern Namibia, attribute them to original ancestor, Mukuru, or consider them "footprints of the gods," and scientists have been stumped for decades. Professor Norbert Jürgens, from the University of Hamburg, might have finally solved the riddle: a species of termites that are most active at night and don't build big, noticeable nests, have engineered the ecosystem by eating the roots of grasses that grow within the circle, keeping the soil moist for long periods of time. The discussion continues, as some scientists who have studied the phenomena aren't so sure about the theory.
On Friday, July 22, the Texas Board of Education voted 14-0 to support scientifically accurate high school biology textbook supplements, rejecting the proposed creationist materials. Instead of including such material, the education board voted to let Education Commissioner Robert Scott work with the publishing company Holt McDougal to find language that is factually correct and fits the standards adopted in 2009. "My goal would be to try to find some common ground," Scott said.
The life and times of Tom Eisner, father of chemical ecology, photographer, musician and champion of environmental and human rights
Thomas Eisner, a Cornell biologist best known for his extensive work (PDF) with chemical ecology, passed away on Friday, March 25th, 2011. Eisner was more than a "bug guy," he was one of the "original guiding lights" in the study of chemical interactions of organisms, most often focusing on insects. He also was a photographer, pianist and occasional conductor (PDF), and conservation activist. More on his fascinating life inside. [more inside]