After posting to the Scallop of Hearts to TO95%, I remembered it’s Blog Action Day for the cause of climate change awareness.
One of the major concerns with climate change relates to habitat changes for the plants and animals. Will aspen survive anywhere in the United States? What trees will be able to survive in [...]... Read more »
Burreson, E., & Ford, S. (2004) A review of recent information on the Haplosporidia, with special reference to Haplosporidium nelsoni (MSX disease). Aquating Living Resources, 17(4), 499-517. DOI: 10.1051/alr:2004056
Hagen, N., & Mann, K.H. (1992) Functional response of the predators American lobster Homarus americanus (Milne-Edwards) and Atlantic wolffish Anarhichas lupus (L.) to increasing numbers of the green sea urchin Strongylocentrotus droebachiensis (Müller). Journal of Experimental Marine Biology and Ecology, 159(1), 89-112. DOI: 10.1016/0022-0981(92)90260-H
Jonasson, J., Thorarinsdottir, G., Eiriksson, H., & Marteinsdottir, G. (2004) Temperature tolerance of Iceland scallop, Chlamys islandica (O.F. Muller) under controlled experimental conditions. Aquaculture Research, 35(15), 1405-1414. DOI: 10.1111/j.1365-2109.2004.01159.x
King, M.J., Kao, M.H., Brown, J.A, & Fletcher, G.L. (1989) Lethal freezing temperatures of fish: limitations to seapen culture in Atlantic Canada. Proc Ann Aquacult Assoc Can., 89(3), 47-49. info:/
Ordás, M., & Figueras, A. (1998) In vitro culture of Perkinsus atlanticus, a parasite of the carpet shell clam Ruditapes decussatus. Diseases of Aquatic Organisms, 129-136. DOI: 10.3354/dao033129
THINKING of and saying a word is something that most of us do effortlessly many times a day. This involves a number of steps - we must select the appropriate word, decide on the proper tense, and also pronounce it correctly. The neural computations underlying these tasks are highly complex, and whether the brain performs them all at the same time, or one after the other, has been a subject of debate.
This debate has now apparently been settled, by a team of American researchers who had the rare........ Read more »
Sahin, N., Pinker, S., Cash, S., Schomer, D., & Halgren, E. (2009) Sequential Processing of Lexical, Grammatical, and Phonological Information Within Broca's Area. Science, 326(5951), 445-449. DOI: 10.1126/science.1174481
Three products that profit on male insecurities (Enzyte, Viagra and Tiger Penis Wine)
Note: the third image is from a campaign to encourage people to stop, not an actual ad.
In my earlier posts I explored why women experience menopause and discussed the Grandmother Hypothesis as a leading explanation. There is accumulating evidence that suggests reproductive senescence in women is an adaptation promoting inclusive fitness. However, there are many claims that menopause also occurs in men. Th........ Read more »
Bribiescas, R. (2006) On the evolution, life history, and proximate mechanisms of human male reproductive senescence. Evolutionary Anthropology: Issues, News, and Reviews, 15(4), 132-141. DOI: 10.1002/evan.20087
By Kristopher Hite
A few weeks ago I traveled from my home in Fort Collins down to Golden, Colorado to hear Vladamir Lunin from the Institute of Mathematical Problems of Biology in Pushchino, Russia give a lecture on x-ray crystallography at the the National Renewable Energy Lab (NREL). He spoke about how to improve the three dimensional map of a crystal structure by applying Fourier-transforms and other mathematical operations to crystal diffraction data. Ab initio phasing as ........ Read more »
Lunin, V., Lunina, N., Ritter, S., Frey, I., Berg, A., Diederichs, K., Podjarny, A., Urzhumtsev, A., & Baumstark, M. (2001) Low-resolution data analysis for low-density lipoprotein particle. Acta Crystallographica Section D Biological Crystallography, 57(1), 108-121. DOI: 10.1107/S0907444900014608
TGIF IS DEAD LONG LIVE TGIF!
Craig and I are making some changes around these parts. You’ll notice them soon enough. One change starts now. We are getting rid of one of our longest running and most successful (not very) commerical franchises. We are disbanding the traditional Friday Deep Sea Pic and TGIF. We will [...]... Read more »
G.C. Williams, & L. Lundsten. (2009) The nephtheid soft coral genus Gersemia Marenzeller, 1878, with the description of a new species from the northeast Pacific and a review of two additional species (Octocorallia: Alcyonacea). Zool. Med. Leiden, 83(34), 1067-1081. info:other/
Active transportation is one of the single easiest ways to get more physical activity into your day. We all commute several times a day, and each of these trips represents an opportunity for physical activity through walking, cycling, or taking transit (which usually involves at least some walking) rather than driving. Active transportation may not sound like a tremendous way to reduce your health risk - I can understand if people doubt that a short walk or bike ride can have a long-term impact........ Read more »
Leitzmann MF, Park Y, Blair A, Ballard-Barbash R, Mouw T, Hollenbeck AR, & Schatzkin A. (2007) Physical activity recommendations and decreased risk of mortality. Archives of internal medicine, 167(22), 2453-60. PMID: 18071167
Three restorations (top, left side, and bottom) of the skull of Andrewsiphius. From the Journal of Paleontology paper.
During the past 30 years the evolution of fully aquatic whales from terrestrial ancestors has gone from one of the most enigmatic evolutionary transitions to one of the best documented. Evidence from the fossil record, genetics, and embryology have been combined to document how early whales walked into the sea, but what often has gone unnoticed is the diversity of early wh........ Read more »
Thewissen, J., & Bajpai, S. (2009) New Skeletal Material of Andrewsiphius and Kutchicetus, Two Eocene Cetaceans from India. Journal of Paleontology, 83(5), 635-663. DOI: 10.1666/08-045.1
Higher population targets are needed to conserve species, scientists say
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Traill, L., Brook, B., Frankham, R., & Bradshaw, C. (2009) Pragmatic population viability targets in a rapidly changing world. Biological Conservation. DOI: 10.1016/j.biocon.2009.09.001
In primates, it has been noticed that if you live in a competitive mating system and you’re a male, you’ll have a very fancy penis. Maybe some spines, or a few ridges here and there. These embellishments are keratinous structures and act to promote rapid ejaculation, which is useful if you’ve got nine other males [...]... Read more »
Seney, M., Kelly, D., Goldman, B., Šumbera, R., & Forger, N. (2009) Social Structure Predicts Genital Morphology in African Mole-Rats. PLoS ONE, 4(10). DOI: 10.1371/journal.pone.0007477
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Rundlöf, M., Edlund, M., & Smith, H. (2009) Organic farming at local and landscape scales benefits plant diversity. Ecography. DOI: 10.1111/j.1600-0587.2009.05938.x
I have written about p53 before and I am sure I will write about it again! We all have p53 inside us. We all have a p53 gene and this p53 gene makes p53 protein. Normally your p53 levels are low but if your DNA gets damaged your p53 increases, damaged cells can be allowed [...]... Read more »
We are in full production phase of vaccines against the Influenza A (H1N1), and some doses are already being distributed in the United States. However, if the virus was already circulating in May, why did it take so long to have the vaccine available? Understand why in this series of posts, beginning with the production [...]... Read more »
Time to celebrate the funding of Mrs. M.'s project, Coral Reef Flip Books, part of the Ocean Bloggers Oceans in the Classroom Initiative. Yesterday I asked for input on which card to feature, and the results are in: with 33.33% of the "vote" the Scallop of Hearts gets the next preview here. I should note that the picture on this card is likely to change before the final version, when we hopefully will get an image of a live animal without too many epibionts (organisms that live on the surface of........ Read more »
Arsenault, D., Giasson, M., & Himmelman, J. (2000) Field examination of dispersion patterns of juvenile Iceland scallops (Chlamys islandica) in the northern Gulf of St Lawrence. Journal of the Marine Biological Association of the UK, 80(3), 501-508. DOI: 10.1017/S0025315400002198
GARCIA, E. (2006) The Fishery for Iceland Scallop (Chlamys islandica) in the Northeast Atlantic. Advances in Marine Biology, 1-55. DOI: 10.1016/S0065-2881(06)51001-6
Jonasson, J., Thorarinsdottir, G., Eiriksson, H., Solmundsson, J., & Marteinsdottir, G. (2006) Collapse of the fishery for Iceland scallop (Chlamys islandica) in Breidafjordur, West Iceland. ICES Journal of Marine Science, 64(2), 298-308. DOI: 10.1093/icesjms/fsl028
WROBLEWSKI, J., BELL, T., COPELAND, A., EDINGER, E., FENG, C., SAXBY, J., SCHNEIDER, D., & SIMMS, J. (2009) Toward a sustainable Iceland scallop fishery in Gilbert Bay, a marine protected area in the eastern Canada coastal zone. Journal of Cleaner Production, 17(3), 424-430. DOI: 10.1016/j.jclepro.2008.08.004
Who cares about insects? Aren’t they just agricultural pests, household nuisances, and harborers of disease? I surely hope that is simply an attempt at exaggeration or at best an antiquated notion. Insects are vital to ecosystem management and fill important environmental roles as pollinators, decomposers parasites, herbivores, predators, and prey. Additionally, as approximately 50% of [...]... Read more »
FONSECA, C. (2009) The Silent Mass Extinction of Insect Herbivores in Biodiversity Hotspots. Conservation Biology. DOI: 10.1111/j.1523-1739.2009.01327.x
This is a post about psychology, and about the how stress, anxiety and uncertainty might lead people to be more religious - and the consequence of that. What triggered it was a NY Times article featuring a recent study. Here's an excerpt:Dr. Proulx and Dr. Heine described having 20 college students read an absurd short story based on “The Country Doctor,” by Franz Kafka. The doctor of the title has to make a house call on a boy with a terrible toothache. He makes the journey and finds that ........ Read more »
Proulx T, & Heine SJ. (2009) Connections from Kafka: exposure to meaning threats improves implicit learning of an artificial grammar. Psychological science : a journal of the American Psychological Society / APS, 20(9), 1125-31. PMID: 19656338
A retrovirus that has been implicated in prostate cancer has now been found in the blood of patients with chronic fatigue syndrome. What is this virus and where did it come from?... Read more »
Urisman A, Molinaro RJ, Fischer N, Plummer SJ, Casey G, Klein EA, Malathi K, Magi-Galluzzi C, Tubbs RR, Ganem D.... (2006) Identification of a novel Gammaretrovirus in prostate tumors of patients homozygous for R462Q RNASEL variant. PLoS pathogens, 2(3). PMID: 16609730
Lombardi VC, Ruscetti FW, Das Gupta J, Pfost MA, Hagen KS, Peterson DL, Ruscetti SK, Bagni RK, Petrow-Sadowski C, Gold B.... (2009) Detection of an Infectious Retrovirus, XMRV, in Blood Cells of Patients with Chronic Fatigue Syndrome. Science (New York, N.Y.). PMID: 19815723
Schlaberg R, Choe DJ, Brown KR, Thaker HM, & Singh IR. (2009) XMRV is present in malignant prostatic epithelium and is associated with prostate cancer, especially high-grade tumors. Proceedings of the National Academy of Sciences of the United States of America, 106(38), 16351-6. PMID: 19805305
My new favorite illustration from the technical literature; a baseball player compared to the glyptodont Doedicurus clavicaudatus. From the Proceedings of the Royal Society B paper.
In the introduction to his most famous work, On the Origin of Species by Means of Natural Selection, the Victorian naturalist Charles Darwin began by writing;
WHEN on board H.M.S. 'Beagle,' as naturalist, I was much struck with certain facts in the distribution of the inhabitants of South America, and in the geo........ Read more »
Blanco, R., Jones, W., & Rinderknecht, A. (2009) The sweet spot of a biological hammer: the centre of percussion of glyptodont (Mammalia: Xenarthra) tail clubs. Proceedings of the Royal Society B: Biological Sciences, 276(1675), 3971-3978. DOI: 10.1098/rspb.2009.1144
Over the last few decades, cosmologists discovered what the future of the universe may hold. That concludes the part of the post where we entertain a single shred of optimism since it seems that our future is bleak. On the biggest time scales, stars burn down to dark embers, life goes extinct, galaxies fly apart, [...]... Read more »
Michael Ash BSc DO ND FDipION reviews the latest studies on this pathogen.
Blastocystis is an unusual enteric protozoan parasite of humans and many animals. It has a worldwide distribution and is often the most commonly isolated organism in parasitological surveys. The parasite has been described since the early 1900s, but only in the last decade or so have there been significant advances in the understanding of Blastocystis biology. ... Read more »
Eroglu F, Genc A, Elgun G, & Koltas IS. (2009) Identification of Blastocystis hominis isolates from asymptomatic and symptomatic patients by PCR. Parasitology research, 105(6), 1589-92. PMID: 19685075
Tan, K. (2008) New Insights on Classification, Identification, and Clinical Relevance of Blastocystis spp. Clinical Microbiology Reviews, 21(4), 639-665. DOI: 10.1128/CMR.00022-08
There may need to be a significant revision in the recent description of one of humanity's oldest ancestors. Ardipithecus ramidus (or "Ardi" for short), the 4.4 million year old hominid fossil discovery, has been a godsend to paleoanthropologists (pun intended). But one of the key researchers has made what could be a serious error in his interpretation.
Christopher Ryan, who writes for Psychology Today at his blog Sex at Dawn (also the title of his forthcoming book) has discovered evidence th........ Read more »
Lovejoy, C. (2009) Reexamining Human Origins in Light of Ardipithecus ramidus. Science, 326(5949), 74-74. DOI: 10.1126/science.1175834
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