4 posts · 2,025 views
An eclectic blog with mostly science related postings from the viewpoint of an evolutionary biologist.
Madhusudan Katti
4 posts
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- June 21, 2011
- 12:28 PM
- 471 views
The oceans rise, even as they decline... so long, fish!
by Madhusudan Katti in a leafwarbler's gleanings
Two interesting, alarming reports this week about what's happening (no small thanks to us) to the dominant habitat on this watery planet. First, that habitat is becoming even more dominant: a paper in PNAS meticulously reconstructs global sea-levels over the past two millenia to show that the oceans have been steadily rising, in concert with climatic changes, and that their rise has accelerated in recent years. This figure ought to worry you:
via realclimate.org
Meanwhile, though........ Read more »
Kemp, A., Horton, B., Donnelly, J., Mann, M., Vermeer, M., & Rahmstorf, S. (2011) Climate related sea-level variations over the past two millennia. Proceedings of the National Academy of Sciences. DOI: 10.1073/pnas.1015619108
- June 21, 2011
- 12:28 PM
- 506 views
The oceans rise, even as they decline... so long, fish!
by Madhusudan Katti in a leafwarbler's gleanings
Two interesting, alarming reports this week about what's happening (no small thanks to us) to the dominant habitat on this watery planet. First, that habitat is becoming even more dominant: a paper in PNAS meticulously reconstructs global sea-levels over the past two millenia to show that the oceans have been steadily rising, in concert with climatic changes, and that their rise has accelerated in recent years. This figure ought to worry you:
via realclimate.org
Meanwhile, though........ Read more »
Kemp, A., Horton, B., Donnelly, J., Mann, M., Vermeer, M., & Rahmstorf, S. (2011) Climate related sea-level variations over the past two millennia. Proceedings of the National Academy of Sciences. DOI: 10.1073/pnas.1015619108
- December 2, 2010
- 07:02 PM
- 519 views
Arsenic and Old Lace
by Madhusudan Katti in a leafwarbler's gleanings
As you may very well have heard by now, NASA made a bit of a splash today in the mainstream media and especially the science (and sci-fi too, of course) blogosphere / twitterverse through its press conference about a fascinating biological discovery with potential astrobiological significance. An "alien" life-form that incorporates Arsenic (which normally kills our kind of life-form) instead of Phosphorus in the "backbone" of its very DNA. Actually its a bacterium from ........ Read more »
Wolfe-Simon, F., Blum, J.S., Kulp, T.R., Gordon. G.W., Hoeft, S.E., Pett-Ridge, J., Stolz, J.F., Webb, S.M., Weber, P.K., Davies, P.C.W., Anbar, A.D., and, Oremland, R.S. (2010) A Bacterium That Can Grow by Using Arsenic Instead of Phosphorus. Science. info:/
- August 23, 2010
- 05:22 AM
- 529 views
Overlooking the familiar in cataloging biodiversity
by Madhusudan Katti in a leafwarbler's gleanings
via myrmecos.net
Familiarity, they say, breeds contempt. Or, even if we aren't actually contemptuous of the familiar, we often simply ignore it. It is not surprising, then—although it should be—that Tapinoma sessile, the odorous house ant of North America, the very same little brown one that is pictured above, and that you may well have swept off your kitchen counter today, remains relatively poorly studied! It is so widespread and common across a variety of habitats in ........ Read more »
Hamm, C. (2010) Multivariate Discrimination and Description of a New Species of Tapinoma from the Western United States . Annals of the Entomological Society of America, 103(1), 20-29. DOI: 10.1603/008.103.0104
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