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118 posts · 136,669 views

Discussion of all things science with a focus on clarity, rationality and enthusiasm. Discussion topics: Natural Science, Biology, Evolution, Paleontology, Geology, Science Education

Johnny
118 posts

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  • November 11, 2010
  • 03:27 PM
  • 503 views

Transgenic Veggies Go Wild

by Johnny in Ecographica

A newly published study from Penn State details what can happen when a genetically modified organism escapes from captivity and interbreeds with the wild members of its species.
... Read more »

Sasu, M., Ferrari, M., & Stephenson, A. (2010) Interrelationships among a Virus-Resistance Transgene. International Journal of Plant Sciences, 171(9), 1048-1058. DOI: 10.1086/656531  

  • September 2, 2010
  • 07:10 AM
  • 1,032 views

Alfred Russel Wallace, a Conspicuous Caterpillar and David Bowie

by Johnny in Ecographica

What do Alfred Wallace and David Bowie have in common with a caterpillar? …in this work, Wallace expanded on one of his theories - a theory that he had previously presented to Charles Darwin and to members of the Entomological Society of London… Aposematism refers to signaling adaptations…... Read more »

  • August 28, 2010
  • 03:20 AM
  • 1,271 views

Why EO Wilson’s Latest Eusociality Paper Fails

by Johnny in Ecographica

The argument presented in the paper is that inclusive fitness theory is an extraneous, unnecessary concept that has failed to provide insights into the evolution of eusociality.

Here are a few of the reasons why I think that their argument fails:
... Read more »

Nowak, M., Tarnita, C., & Wilson, E. (2010) The evolution of eusociality. Nature, 466(7310), 1057-1062. DOI: 10.1038/nature09205  

  • April 13, 2010
  • 05:40 PM
  • 1,665 views

Cottonmouth Moccasins: Adapting to the Beach and Beyond

by Johnny in Ecographica

Even though their preferred range places them in proximity to the Atlantic Ocean and the Gulf of Mexico, the conquest of marine ecosystems by the cottonmouths has been - as it has with most aquatically inclined reptiles - blockaded. The physiological demands of maintaining adequate hydration in a high-saline environment has constrained the Agkistrodon genus to a landward life. But things could change. ... Read more »

  • March 31, 2010
  • 08:25 AM
  • 1,551 views

Breaking News: Footprints challenge theory of evolution

by Johnny in Ecographica

...a paper in Arizona, which proclaims that “Research by UA assistant anthropology professor David Raichlen and his colleagues provide evidence suggesting that 3.6 billion years ago, hominins walked with the same upright gait that humans do today...”... Read more »

  • March 30, 2010
  • 08:10 AM
  • 1,217 views

The Views of Biology Teachers towards Teaching Evolution

by Johnny in Ecographica

The National Association of Biology Teachers has recently published the results of a survey which focused on the attitudes held by Florida’s biology teachers towards the teaching of evolution.... Read more »

FOWLER and MEISELS. (2010) Florida Teachers’ Attitudes about Teaching Evolution. The American Biology Teacher, 72(2), 96-99. info:/10.1525/abt.2010.72.2.8

  • March 21, 2010
  • 03:15 PM
  • 1,447 views

Tadpole Tails and Predator Induced Plasticity

by Johnny in Ecographica

...chemical signals that switch tail enhancement into overdrive include those compounds released by other tadpoles as warning pheromones during predatory attack and those molecules discharged by the predator while digesting prey-tadpole tissues. So, in other words, a predator’s attack and digestion of a conspecific tad liberates chemicals into the water that are received by other tadpoles during development; as a result, resources are directed away from ‘normal’ growth processes and are d........ Read more »

  • March 13, 2010
  • 02:08 PM
  • 1,081 views

Evolving from Promiscuity to Monogamy

by Johnny in Ecographica

...despite the fact that promiscuous mating systems are the prevailing strategy in nature, environmental factors can push typically promiscuous species towards monogamy... case in point, a report published in the April issue of The American Naturalist details how the ‘mimic poison dart frog’ (Ranitomeya imitator) parted ways with promiscuity to adapt a lifestyle as the first scientifically recognized genetically monogamous amphibian. ... Read more »

  • February 20, 2010
  • 02:43 PM
  • 936 views

How Enticing Viruses Manipulate Animals

by Johnny in Ecographica

...undermining the normal life-processes of the host’s cells, viruses are detriments to health; however, more than just illness can remain in the wake of the virus’s biological sabotage. Sometimes included with the observable symptoms of an ailment are other characteristics of viral infection that serve to promote the spread of disease. The genes that such a virus splices into a host cell’s mainframe can code for phenotypes that manipulate unwitting vectors into exposing them........ Read more »

  • February 13, 2010
  • 02:37 PM
  • 1,941 views

How to Study Invasive Species, a Conservation and Ecological Imperative

by Johnny in Ecographica

...the invasive could theoretically replace the native with little ill effect to the ecosystem; the invasive could fill the niche left void by the out-competed native plant without disrupting the energetics of the plant community as a whole. BUT, at the same time, a newly arrived invasive species may have a distinct advantage over a native transient because it is completely foreign to the ecosystem. For example, being unrecognized by its new environment the invasive may, for a period of time, ........ Read more »

  • February 10, 2010
  • 07:04 AM
  • 1,210 views

Is the Evolution Debate Over?

by Johnny in Ecographica

A recent blog post at National Public Radio’s “Cosmos And Culture” by astrophysicist Adam Frank has raised my hackles. The post, titled “The Evolution Debate Is Over; It's Time To Move Forward,” argues that “it's time to put the prejudices that drag down discussion between science and the domains of human spiritual endeavor aside.”
... Read more »

Sedikides, C. (2009) Why Does Religiosity Persist?. Personality and Social Psychology Review, 14(1), 3-6. DOI: 10.1177/1088868309352323  

  • February 5, 2010
  • 10:30 AM
  • 786 views

How Science Suppresses the Sex Lives of Republicans

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.Speaking to climate change, Republican Mike Noel (at left) explained recently that, “This is absolutely, in my mind, in fact a conspiracy to limit population not only in this country but across the globe."Being both a Rep........ 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  

  • February 5, 2010
  • 10:15 AM
  • 640 views

How Science Suppresses the Sex Lives of Republicans

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  

  • February 3, 2010
  • 11:01 AM
  • 898 views

Tree Plantations as Biological Deserts

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 »

  • February 2, 2010
  • 07:27 AM
  • 1,394 views

Buffalos and Birds: Flightless Wings from the KT Extinction to Darwin’s Dinner Plate

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 »

  • January 10, 2010
  • 12:35 PM
  • 884 views

Insinuations of Lamarckian Evolution and a Lamenting First Impression

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  

  • January 8, 2010
  • 06:13 PM
  • 1,739 views

Arrested Development in Socratic Parasites

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 »

  • January 1, 2010
  • 11:55 AM
  • 635 views

Plants to People: the Swift Tempo of Spontaneous Mutation

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  

  • December 30, 2009
  • 12:58 PM
  • 797 views

The Poetry of the Convergent Lizards

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 »

  • December 28, 2009
  • 01:52 PM
  • 1,223 views

Shield Pennywort - Hydrocotyle

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 »

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