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Ecographica
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by Johnny in Ecographica
According to Utah State Representative Mike Noel, global climate change is a conspiracy theory. He insists that the whole idea of shifting climates was put together by the world’s biologists, climatologists and other scientists as an elaborate effort to control his sex life.
... Read more »
Sovacool, B., & Brown, M. (2009) Scaling the policy response to climate change. Policy and Society, 27(4), 317-328. DOI: 10.1016/j.polsoc.2009.01.003
by Johnny in Ecographica
If I had a nickel for every time a biologist told me that tree plantations are nothing but “biological deserts” I’d be a rich man!
Well, at least a rich-er man anyway…
... Read more »
Paquette, A., & Messier, C. (2010) The role of plantations in managing the world's forests in the Anthropocene. Frontiers in Ecology and the Environment, 8(1), 27-34. DOI: 10.1890/080116
by Johnny in Ecographica
Birds undertake a re-conquest of the ground following the KT Extinction and ultimately find themselves on Darwin's dinner plate.... Read more »
Phillips, M., Gibb, G., Crimp, E., & Penny, D. (2009) Tinamous and Moa Flock Together: Mitochondrial Genome Sequence Analysis Reveals Independent Losses of Flight among Ratites. Systematic Biology, 59(1), 90-107. DOI: 10.1093/sysbio/syp079
by Johnny in Ecographica
...the paper is saying that the introduction of ACQUIRED CHARACTERS into the germline of a lineage has lead to GENETIC NOVELTIES with the demonstrated ability to translate to the expressed PHENOTYPE of an ANIMAL, thus acting as a source of INNOVATION... Read more »
Horie, M., Honda, T., Suzuki, Y., Kobayashi, Y., Daito, T., Oshida, T., Ikuta, K., Jern, P., Gojobori, T., Coffin, J.... (2010) Endogenous non-retroviral RNA virus elements in mammalian genomes. Nature, 463(7277), 84-87. DOI: 10.1038/nature08695
by Johnny in Ecographica
An irreducibly complex rant using developmental biology (arrested development) to connect the shortfalls of the Greek Philosopher Socrates to failed creationist arguments; includes a detailed account of a parasitic worm’s lifecycle (Alaria marcianae), and of course, endangered Florida Panthers and Mexican axolotls… A well rounded post!
... Read more »
Davies, S. (2003) Developmental plasticity in schistosomes and other helminths. International Journal for Parasitology, 33(11), 1277-1284. DOI: 10.1016/S0020-7519(03)00161-9
Foster, G., Kinsella, J., Sheppard, B., & Cunningham, M. (2009) Transmammary Infection of Free-Ranging Florida Panther Neonates by Alaria marcianae (Trematoda: Diplostomatidae). Journal of Parasitology, 95(1), 238-239. DOI: 10.1645/GE-1749.1
by Johnny in Ecographica
Research published today... tediously analyzing the genomes from multiple generations of the plant Arabidopsis thaliana, scientists from the Max Planck... Sanger scientists published work in which the rate of mutation in humans was estimated at around...... Read more »
Ossowski, S., Schneeberger, K., Lucas-Lledo, J., Warthmann, N., Clark, R., Shaw, R., Weigel, D., & Lynch, M. (2009) The Rate and Molecular Spectrum of Spontaneous Mutations in Arabidopsis thaliana. Science, 327(5961), 92-94. DOI: 10.1126/science.1180677
by Johnny in Ecographica
Whiptails and fencers scurry and make haste,
cross White Sands their paths converge and pace.
Tho' differing by both origin and type,
their causal genotypes follow trace.
Independent mutations had aligned,
and were by adaptation refined.
... Read more »
Rosenblum, E., Rompler, H., Schoneberg, T., & Hoekstra, H. (2009) Molecular and functional basis of phenotypic convergence in white lizards at White Sands. Proceedings of the National Academy of Sciences. DOI: 10.1073/pnas.0911042107
by Johnny in Ecographica
Shield pennywort represents but one of about a hundred different species that belong to the Genus Hydrocotyle, a.k.a the ‘water pennyworts.’ Though often found listed as members of the Apiaceae Family, the Hydrocotyle group is now included in the ‘Ivy Family’ (Araliaceae). The genus as whole enjoys a worldwide distribution; however, the Facultative Wet H. verticillata is native to the Americas where can be found occupying floodplains, swamps, ditches, and just about any........ Read more »
CHANDLER, G., & PLUNKETT, G. (2004) Evolution in Apiales: nuclear and chloroplast markers together in (almost) perfect harmony. Botanical Journal of the Linnean Society, 144(2), 123-147. DOI: 10.1111/j.1095-8339.2003.00247.x
by Johnny in Ecographica
What are males good for? ... mitochondrial genomes of a freshwater snail species in order to compare the rates at which genetic mutations accumulate during sexual and asexual reproduction.
... Read more »
Neiman, M., Hehman, G., Miller, J., Logsdon, J., & Taylor, D. (2009) Accelerated Mutation Accumulation in Asexual Lineages of a Freshwater Snail. Molecular Biology and Evolution. DOI: 10.1093/molbev/msp300
by Johnny in Ecographica
...published a letter in which other California based scientists have extrapolated the shifting niche model in order to estimate the anticipated ‘velocity’ of temperature change across different biomes...or through the advent of novel life-history strategies, the ability of an organism to accommodate ecological variability is essential.... Read more »
Loarie, S., Duffy, P., Hamilton, H., Asner, G., Field, C., & Ackerly, D. (2009) The velocity of climate change. Nature, 462(7276), 1052-1055. DOI: 10.1038/nature08649
by Johnny in Ecographica
...recent experiments into the coevolution of male and female duck genitalia...provided evidence of ducks being actively engaged in a sexually antagonistic arms race...equipped with artificial duck vaginas, mineral oil and a high speed video camera. ... Read more »
Patricia L. R. Brennan, Christopher J. Clark and Richard O. Prum. (2009) Explosive eversion and functional morphology of the duck penis supports sexual conflict in waterfowl genitalia. Proc. R. Soc. B. info:/
by Johnny in Ecographica
Recent research conducted out of UC Berkeley and Penn State University has quantitatively demonstrated that mammal diversity in North America has plummeted since the arrival of humans about 13,000 years ago. ... Read more »
Carrasco, M., Barnosky, A., & Graham, R. (2009) Quantifying the Extent of North American Mammal Extinction Relative to the Pre-Anthropogenic Baseline. PLoS ONE, 4(12). DOI: 10.1371/journal.pone.0008331
by Johnny in Ecographica
...lineage of Iva frutescens specifically, proximity to tidally influenced waters has selected achenes with a tolerance for saltwater and a proven ability to stay afloat while in a non-dormant condition. In fact, research published just this year has shown that the achenes of Iva frutescens can stay ... Read more »
Elsey-Quirk, T., Middleton, B., & Proffitt, C. (2009) Seed flotation and germination of salt marsh plants. Aquatic Botany, 91(1), 40-46. DOI: 10.1016/j.aquabot.2009.02.001
by Johnny in Ecographica
While in field last week, I encountered a species of fungus with a rather unique set of morphological and ecological characteristics. The aptly named ‘stinkhorn’ fungus (Clathrus columnatus) belongs to the Phallaceae Family of fungi and produces a distinctive gelatinous spore mass that gives off a lovely perfume. Well, lovely to insects anyway, to me it reeked of rotting meat and dung. The stinkhorn’s ‘aroma’ serves as an attractant for flies and other insects vit........ Read more »
Tuno, N. (1998) Spore dispersal of Dictyophora fungi (Phallaceae) by flies. Ecological Research, 13(1), 7-15. DOI: 10.1046/j.1440-1703.1998.00241.x
by Johnny in Ecographica
Another Science Lesson from Rick Santorum...
I think that I ruffled Rick Santorum’s feathers. Last week I published an article in which Christian fundamentalist and presidential hopeful Rick Santorum was used as a metaphor to dispel one of the commonly held misconceptions about biological evolution.... Read more »
Scott, E. (2009) Science Standards Evolve. Evolution: Education and Outreach, 2(3), 538-540. DOI: 10.1007/s12052-009-0153-0
by Johnny in Ecographica
An article just published to Nature has turned the world of evolutionary biology topsy-turvy!Or, so they’d like us to believe…The paper’s authors Chris Venditti, Andrew Meade and Mark Pagel have devised a new model that shows that evolution is not driven by natural selection or through the accumulative effects of random genetic drift. Rather than incremental and gradual change, their study suggests that the vast bulk of speciation results from rare stochastic events. They call this new the........ Read more »
Venditti, C., Meade, A., & Pagel, M. (2009) Phylogenies reveal new interpretation of speciation and the Red Queen. Nature. DOI: 10.1038/nature08630
by Johnny in Ecographica
An article just published to Nature has turned the world of evolutionary biology topsy-turvy!
Or, so they’d like us to believe…
The paper’s authors Chris Venditti, Andrew Meade and Mark Pagel have devised a new model that shows that evolution is not driven by natural selection or through the accumulative effects of random genetic drift. Rather than incremental and gradual change... Read more »
Venditti, C., Meade, A., & Pagel, M. (2009) Phylogenies reveal new interpretation of speciation and the Red Queen. Nature. DOI: 10.1038/nature08630
by Johnny in Ecographica
Helianthus angustifolius is a branched perennial plant that is native to North America. This Facultative Wet species can found in hydric flatwoods and marsh communities as well as along the sides of ditches and roads that have mesic to saturated soils. Its brilliantly colored disk flowers make it easily recognizable as a member of the Asteraceae’s sunflower group – the Genus Helianthus. The swamp sunflower’s tall domesticated cousin, ‘the’ sunflower Helianthus an........ Read more »
TIMME. (2007) HIGH-RESOLUTION PHYLOGENY FOR HELIANTHUS . American Journal of Botany, 94(11), 1837-1852. info:/
by Johnny in Ecographica
One of the common misconceptions about biological evolution is that the process pushes organisms towards a pinnacle of perfection in which the ‘most evolved species’ maintain dominance over ‘less evolved’ or ‘lower organisms.’ Often closely associated with this mistaken belief is the erroneous idea that, by virtue of braininess, our own species – Homo sapiens - currently holds sovereignty over evolution’s hypothetical pinnacle. These egocentric a........ Read more »
D'Angelo, K. (1997) Faxon institute colloquium on scholarly communications issues. Serials Review, 23(2), 91-96. DOI: 10.1016/S0098-7913(97)90058-7
by Johnny in Ecographica
In recent evolution news, a research article published this month in the Proceedings of the National Academy of Sciences has demonstrated that the brains of elephants and humans have followed similar adaptive paths.... Read more »
Goodman, M., Sterner, K., Islam, M., Uddin, M., Sherwood, C., Hof, P., Hou, Z., Lipovich, L., Jia, H., Grossman, L.... (2009) Phylogenomic analyses reveal convergent patterns of adaptive evolution in elephant and human ancestries. Proceedings of the National Academy of Sciences, 106(49), 20824-20829. DOI: 10.1073/pnas.0911239106
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