Today’s guest post is by Dr. Euan Ritchie, formerly of James Cook University, but who is now firmly entrenched at Deakin University in Victoria as a new Lecturer in ecology. Euan’s exciting research over the course of his memorable PhD (under the tutelage of renowned ecologist-guru, Professor Chris Johnson) has produced some whoppingly high-impact research. [...]... Read more »
Wallach, A., Johnson, C., Ritchie, E., & O’Neill, A. (2010) Predator control promotes invasive dominated ecological states. Ecology Letters. DOI: 10.1111/j.1461-0248.2010.01492.x
Wallach, A., Ritchie, E., Read, J., & O'Neill, A. (2009) More than Mere Numbers: The Impact of Lethal Control on the Social Stability of a Top-Order Predator. PLoS ONE, 4(9). DOI: 10.1371/journal.pone.0006861
Psychosis is a scary word, conjuring images of people who have so lost touch with reality that they are unable to integrate with society. As with most everything else this condition exists on a continuum, mild symptoms may pose no problem for the sufferer1 nor be outwardly visible. Previous studies have seen correlations between the [...]... Read more »
Hedelin M, Lof M, Olsson M, Lewander T, Nilsson B, Hultman CM, & Weiderpass E. (2010) Dietary intake of fish, omega-3, omega-6 polyunsaturated fatty acids and vitamin D and the prevalence of psychotic-like symptoms in a cohort of 33 000 women from the general population. BMC psychiatry, 10(1), 38. PMID: 20504323
High infection rates and increased risk of acute organ dysfunction in black individuals explains why people from this racial background are more likely to have (and die from) severe sepsis than white individuals, according to a new study published in JAMA. Severe sepsis (when the body has a systemic inflammatory response to infection that can [...]... Read more »
Mayr, F., Yende, S., Linde-Zwirble, W., Peck-Palmer, O., Barnato, A., Weissfeld, L., & Angus, D. (2010) Infection Rate and Acute Organ Dysfunction Risk as Explanations for Racial Differences in Severe Sepsis. JAMA: The Journal of the American Medical Association, 303(24), 2495-2503. DOI: 10.1001/jama.2010.851
A zombie is another name for The Walking Dead -- those who are lifeless, apathetic, or totally lacking in independent judgment. But in an ecological sense, a zombie species no longer fulfills its ecological function because it is becoming extinct... Read more »
Shultz, S., Baral, H., Charman, S., Cunningham, A., Das, D., Ghalsasi, G., Goudar, M., Green, R., Jones, A., Nighot, P.... (2004) Diclofenac poisoning is widespread in declining vulture populations across the Indian subcontinent. Proceedings of the Royal Society B: Biological Sciences, 271(Suppl_6). DOI: 10.1098/rsbl.2004.0223
Lemus, J., & Blanco, G. (2009) Cellular and humoral immunodepression in vultures feeding upon medicated livestock carrion. Proceedings of the Royal Society B: Biological Sciences, 276(1665), 2307-2313. DOI: 10.1098/rspb.2009.0071
Naidoo, V., Wolter, K., Cromarty, D., Diekmann, M., Duncan, N., Meharg, A., Taggart, M., Venter, L., & Cuthbert, R. (2009) Toxicity of non-steroidal anti-inflammatory drugs to Gyps vultures: a new threat from ketoprofen. Biology Letters, 6(3), 339-341. DOI: 10.1098/rsbl.2009.0818
Jackson, A., Ruxton, G., & Houston, D. (2008) The effect of social facilitation on foraging success in vultures: a modelling study. Biology Letters, 4(3), 311-313. DOI: 10.1098/rsbl.2008.0038
Swan, G., Cuthbert, R., Quevedo, M., Green, R., Pain, D., Bartels, P., Cunningham, A., Duncan, N., Meharg, A., Lindsay Oaks, J.... (2006) Toxicity of diclofenac to Gyps vultures. Biology Letters, 2(2), 279-282. DOI: 10.1098/rsbl.2005.0425
Cuthbert, R., Parry-Jones, J., Green, R., & Pain, D. (2007) NSAIDs and scavenging birds: potential impacts beyond Asia's critically endangered vultures. Biology Letters, 3(1), 90-93. DOI: 10.1098/rsbl.2006.0554
The trailer for Shaun of the Dead.
Not all zombies are created equal. The most popular zombie archetype is a shambling, brain-eating member of the recently deceased, but, in recent films from 28 Days Later to Zombieland, the definition of what a zombie is or isn't has become more complicated. Does a zombie have to be a cannibal corpse, or can a zombie be someone infected with a virus which turns them into a blood-crazed, fast-running monster?
For my own part, I have always preferred the cla........ Read more »
Campobasso, C. (2001) Factors affecting decomposition and Diptera colonization. Forensic Science International, 120(1-2), 18-27. DOI: 10.1016/S0379-0738(01)00411-X
DeVault, T., Brisbin, Jr., I., & Rhodes, Jr., O. (2004) Factors influencing the acquisition of rodent carrion by vertebrate scavengers and decomposers. Canadian Journal of Zoology, 82(3), 502-509. DOI: 10.1139/Z04-022
This was the title of a fascinating article I saw on Twitter a few minutes ago, courtesy of the American Association of Cancer Research (AACR). They are providing access to the paper free of charge to the public using this...... Read more »
Khleif, S., Doroshow, J., Hait, W., & , . (2010) AACR-FDA-NCI Cancer Biomarkers Collaborative Consensus Report: Advancing the Use of Biomarkers in Cancer Drug Development. Clinical Cancer Research, 16(13), 3299-3318. DOI: 10.1158/1078-0432.CCR-10-0880
If you have even a marginal interest in evolutionary biology you will probably have heard of Hamilton’s Rule, a simple formal representation of the logic whereby a gene which favors altruism may spread through a population: rB > C, where r = coefficient of relatedness on the gene in question, B = benefit to those [...]... Read more »
Smith J, Van Dyken JD, & Zee PC. (2010) A generalization of Hamilton's rule for the evolution of microbial cooperation. Science (New York, N.Y.), 328(5986), 1700-3. PMID: 20576891
The world is different for small animals and big animals. J.B.S. Haldane said it best:
To the mouse and any smaller animal (gravity) presents practically no dangers. You can drop a mouse down a thousand-yard mine shaft; and, on arriving at the bottom, it gets a slight shock and walks away, provided that the ground is fairly soft. A rat is killed, a man is broken, a horse splashes.
What does scale mean for neurons? As an animal gets bigger, it’s going to take longer for neural signals to get f........ Read more »
More, Heather L., Hutchinson, John R., Collins, David F., Weber, Douglas J., Aung, Steven K. H., & Donelan, J. Maxwell. (2010) Scaling of sensorimotor control in terrestrial mammals. Proceedings of the Royal Society B: Biological Sciences. info:/10.1098/rspb.2010.0898
OMG ZOMBIE POST!!!
Let's all pause and contemplate how awesome I look as a zombie. I DO love brains. Very much. OM NOM NOM.
So Sci was thinking about what to post for Zombie Day. She thought about wondering if dogs could sniff early stage zombie infection and thus help with quarantine. She thought about whether or not grocery stores would be a good place to hide, but Evil assured her that Costco is better (everything is better when you buy IN BULK!). She then thought about maybe finding........ Read more »
Wasps, hornets, and other Hymenoptera may live nearly solitary lives, live in huge colonies, or something in between. The European hornet, Vespa crabro, lives in a colony consisting of one queen mated to a single male. In Hymenoptera, females are typically diploid (having genes from both parents) while males are typically haploid (having genes only from the female parent). If you draw a diagram of this and stare at it for a long time, you may come to the same conclusions that Bill "Buzz Off" ........ Read more »
OMG ZOMBIE POST!!! Let’s all pause and contemplate how awesome I look as a zombie. I DO love brains. Very much. OM NOM NOM. So Sci was thinking about what to post for Zombie Day. She thought about wondering if dogs could sniff early stage zombie infection and thus help with quarantine. She thought about [...]... Read more »
New fossils found in Gabon might push back the origin of multicellular life. By about 200 million years.... Read more »
Albani, A., Bengtson, S., Canfield, D., Bekker, A., Macchiarelli, R., Mazurier, A., Hammarlund, E., Boulvais, P., Dupuy, J., Fontaine, C.... (2010) Large colonial organisms with coordinated growth in oxygenated environments 2.1 Gyr ago. Nature, 466(7302), 100-104. DOI: 10.1038/nature09166
Hutchinson-Gilford Progeria Syndrome (HGPS, or just "progeria") is perhaps the best known of the accelerated aging conditions. Considerable progress has been made over the past decade in uncovering the biochemical mechanisms of this disease, and in the process it has come to seem plausible that a viable therapy for progeria may have some modest use in tackling normal aging as well. The same follows for other accelerated aging conditions, meaning that it's worth keeping an eye on this field of me........ Read more »
Marji J, O'Donoghue SI, McClintock D, Satagopam VP, Schneider R, Ratner D, J Worman H, Gordon LB, & Djabali K. (2010) Defective lamin A-Rb signaling in Hutchinson-Gilford Progeria Syndrome and reversal by farnesyltransferase inhibition. PloS one, 5(6). PMID: 20559568
In this post, I'll be talking about octopus tactile sensation. M. J. Wells and J. Z. Young did the classic experimental work on touch discrimination and learning in the octopus, although a bit of recent work has been done on the neurochemical basis of touch learning in the octopus (which I won't get into here.)We'll focus on Tactile Discrimination of Surface Curvature and Shape by the Octopus (1964) by Wells. This was one of his later papers in a series on tactile learning in the oct........ Read more »
M. J. Wells. (1964) Tactile Discrimination of Surface Curvature and Shape by the Octopus. Journal of Experimental Biology, 433-445. info:/
This is the second part in a series about the myths and realities of alcohol consumption.
I pray thee let me and my fellow have
A hair of the dog that bit us last night—
And bitten were we both to the brain aright
- John Heywood
The idea that alcohol may itself be a cure for alcohol hangovers is [...]... Read more »
Jeffrey G. Wiese, MD; Michael G. Shlipak, MD, MPH; and Warren S. Browner, MD, MPH. (2000) The Alcohol Hangover. Annals of Internal Medicine, 152(12), 897-902. info:/
Verster JC. (2009) The "hair of the dog": a useful hangover remedy or a predictor of future problem drinking?. Current drug abuse reviews, 2(1), 1-4. PMID: 19630732
Blowouts and the subsequent dispersion of oil and gas in deep and shallow water differ immensely. In shallower waters, expelled gas will contribute to the buoyancy of the plume, which quickly rises to the surface. The rising gas bubble plume and the water it traps govern the size and shape of the resultant slick.
When a blowout . . . → Read More: The Complex Science of Predicting Oil Plumes... Read more »
Johansen, �. (2003) Development and verification of deep-water blowout models. Marine Pollution Bulletin, 47(9-12), 360-368. DOI: 10.1016/S0025-326X(03)00202-9
A pheromone in the male mouse’s tears causes a sexual response in female mice who smell it. The neural pathway was meticulously mapped in a study published today in Nature. Interestingly, the female mouse actually has to be somewhat in the mood prior to the pheromone secretion for the pheromone to have effect, icing on the [...]... Read more »
Haga, S., Hattori, T., Sato, T., Sato, K., Matsuda, S., Kobayakawa, R., Sakano, H., Yoshihara, Y., Kikusui, T., & Touhara, K. (2010) The male mouse pheromone ESP1 enhances female sexual receptive behaviour through a specific vomeronasal receptor. Nature, 466(7302), 118-122. DOI: 10.1038/nature09142
Imagine a small town where everything is uniform—a tiny community of individuals who eat the same meals and pair up with people with similar qualities and traits. The scenery is stripped down: one church, one pub and cookie-cutter houses. Now add in social interactions. Greetings occur but they have few variations; life is routine. And just a few miles over in a town with the same layout, similar individuals are interacting, eating and greeting, in all the same ways.
... Read more »
Laliberté, E., & Tylianakis, J. (2010) Deforestation homogenizes tropical parasitoid–host networks. Ecology, 91(6), 1740-1747. DOI: 10.1890/09-1328.1
There is growing interest in applying next-generation sequencing to targeted regions of interest, particularly the “exome” - the set of coding exons in the human genome. A paper in Genome Biology from Matthew Bainbridge and colleagues at Baylor describes solution-phase exome capture and sequencing of a HapMap sample with just 3 GB of data. The [...]... Read more »
Bainbridge MN, Wang M, Burgess DL, Kovar C, Rodesch MJ, D'Ascenzo M, Kitzman J, Wu YQ, Newsham I, Richmond TA.... (2010) Whole exome capture in solution with 3Gbp of data. Genome biology, 11(6). PMID: 20565776
I have a hard time remembering the name Aspidoscelis uniparens, because when it first broke into the limelight, it was Cnemidophorus uniparens. Sort of like how everyone continued calling Prince “Prince” even after he changed his name to a squiggle. If only he’d been known as a squiggle first when he released “Little Red Corvette”...
Regardless of the genus name, I love this lizard. This was probably the first parthenogenetic animal that made an impression on me, when I was an undergr........ Read more »
Crews D, & Fitzgerald KT. (1980) "Sexual" behavior in parthenogenetic lizards (Cnemidophorus). Proceedings of the National Academy of Sciences of the United States of America, 77(1), 499-502. PMID: 16592761
Do you write about peer-reviewed research in your blog? Use ResearchBlogging.org to make it easy for your readers — and others from around the world — to find your serious posts about academic research.
If you don't have a blog, you can still use our site to learn about fascinating developments in cutting-edge research from around the world.
Research Blogging is powered by SMG Technology.
To learn more, visit seedmediagroup.com.