Nature Blog Network
Showing posts with label Open Access. Show all posts
Showing posts with label Open Access. Show all posts

Wednesday, November 26, 2008

Starvation is the Thread That Binds Amoebas Together

ResearchBlogging.orgWhen the going gets tough, the starved huddle together en masse. You might expect this behavior from musk oxen, schools of fish or even armies of anemones. New research published in the open access journal PLoS Biology demonstrates that our spineless protistan cousins, the amoeba, seek out genetically similar relatives when they are under stress. They aggregate together to form a fruiting body which will carry their genetic information safely on when better days arrive. This happens at an expense though. Nearly 20% of individual amoebas will perish in this effort "altruistically" giving their all for their cousins. The spores of the fruiting body are hardy and will go on carrying the amoebas' genetic heritage, while some cells will die making the stalk that lifts the fruiting body off of the ground. The higher the fruiting body the more likely and farther it will be dispersed.

Figure 4: Sorting of Strains during Multicellular Development. Cells expressing either GFP or DsRed were mixed at equal proportions and allowed to develop on agar plates. Pictures were taken at the indicated developmental time points and the merged image of the two fluorophores is shown. (A) A mix of the genetically dissimilar strains AX4-DsRed and QS44-GFP shows increased segregation with time. (B) A mix of the genetically identical strains AX4-DsRed and AX4-GFP shows no segregation.

There are several interesting ramifications from this study. The amoebas must be able to detect similar genotypes. Additionally, this demonstrates an important historical point in organismal evolution. The beginnings of multicellularity. One direct hypothesis generated or supported by this is that multicellularity evolved out of a need to protect genetic information during stressful times, such as starvation. Instead of every individual slowly dying off they band together for a final push to ensure the survival of the genes.

Elizabeth A. Ostrowski, Mariko Katoh, Gad Shaulsky, David C. Queller, Joan E. Strassmann (2008). Kin Discrimination Increases with Genetic Distance in a Social Amoeba PLoS Biology, 6 (11) DOI: 10.1371/journal.pbio.0060287

Wednesday, October 15, 2008

Praxis #3

Praxis, the blog carnival about "scientific life", has landed here at The Other 95%. Welcome and make sure you look around at the work of my spineless co-blogger Eric and myself. The last edition was held at Life v. 3.0. Make sure you submit to Praxis #4 to be held at The Lay Scientist. Go ahead and host one yourself as well! Now on to the carnival.

Open Access Day and 5 Years of PLoS!!!
It was Open Access Day yesterday which (nearly) coincided with the 5th year anniversary of PLoS on October 13. PLoS asked "Why does open access matter to you". Check out all the replies aggregated in the Synchroblogging Competition post!

Difficulties of Being a Scientist
KH at Lecturer Notes ponders junior faculty naivete. Head over there to remind KH that making mistakes is part of the learning process!

The Rock Doctor at Life v. 3.0 has a post up describing her thoughts on being different from her friends. Science often takes people down an interesting path that neither social circumstances, religion or personaly/family history can control. You either succumb to the mold or let the journey carry you onward.

Bill at Open Reading Frame reminds everyone that no goes into science to get rich by plotting monthly salary versus experience. The results? Go there and see his analysis!

Searching for a job is no easy task. We all have our ideals. A nice salary, maybe able to purchase that first home, live in a nice area with plenty of weekend adventure opportunities and culture. But the job we want isn't always there or isn't always yours. That is why Physioprof over at Drugmonkey reminds us to cast a wide net when job hunting!

Is Biology Chemistry?
Bora from A Blog Around the Clock waxes poetic on Green Fluorescence Protein winning the Nobel prize in Chemistry. For some reason he seems to think the "nobel" jellyfish isn't deserving of the prize. Oh, I guess some people got the prize not the jelly. My bad. But he has several comments on what discerns Medicine/Physiology from Chemistry. The line is often blurred in the awarding of the Nobel Prizes. The don't join the bandwagon rant resonates with me for sure!

Abel Pharmboy at Terra Sigillata also weighs on the GFP Nobel issue and concludes that "funding agencies [need] to support a broad range of chemical and biological research". Find out why at Terra Sigillata!

Revolutionizing Peer Review
Cameron Neylon at Science in the Open offers up a few ideas about bringing peer review into the 21st century. This includes taking into account online articles (such as blog posts), wiki-style reviewing, open reviewing, aggregation after review, and much much more. Be sure to follow the excellent comment thread. Cameron also offers up his personal view of open science. If you are not a "believer" in open access and open science after this post (the 1st in a series), then there is no hope for you or you must work for "that one". Superbly done.

Bjorn Brembs also puts out an excellent post about transparent peer review, but has a different take on it from Cameron. It starts with a discussion forum, ends with a journal publication. But it is what happens between those two stages that is important.

Do it for the Children?
Janet Stemwedel at Adventures in Ethics and Science supports the progress of women in science but asks a very important question of a german initiative. Should women with kids get special treatment for scholarships? There are lots of underlying assumptions with this, be sure to read through the comment thread as well. Zuska also weighs in with her thoughts.

Fight the Power!
Sick of Thomson-ISI or just want an open source alternative to EndNote? After hearing about Thomson Reuter's bogus lawsuit against George Mason University, where the open source referencing software Zotero was made by Dr. Daniel Cohen, for violating its license agreement and destroying the EndNote customer base (i.e. reverse engineering the .ens file format), I decided to give Zotero a whirl. It rocks and it integrates well with NeoOffice, the open source word editting software made for the Mac platform. Kevin Smith from Scholarly Communications@Duke distills down the copyright issues associated with the lawsuit. He has many excellent points and concerns, such as:

"In general, open source software is a gift that many universities like George Mason give to the academic community as a whole, and the value of that gift is increased if it is possible for scholars who have been using a costly commercial product to move their research resources from the latter into the former. That increased value (an “externality” in economic jargon) could be weighed against Thomson’s loss (which they allege is around $10 million per year) in reaching a reasonable decision about contract enforcement."
Somewhat on the topic of Thomson, at least the use of their metric, John Wilkins at Evolving Thoughts mentions the joint response of many journals from the History of Science, Technology and Medicine fields to the stupidity of index metrics.
"We now confront a situation in which our own research work is being subjected to putatively precise accountancy by arbitrary and unaccountable agencies."
Larry Moran at the Sandwalk kindly reminds us that scientists, too, can be activists. The picture of Haldane raising his fist, passionately lecturing a large crowd of the "United Front" is priceless. What scientists are standing up with the people and demanding answers to pertenant issues of our day?

Anonymous Coward of Bayblab posts the letter by scientists in Canada (America's hat!) who are protesting government interference in science. Blame Go Canada!

College or Bust
Are too many people trying to get a B.A. degree? Should colleges be more selective, admit less students or be tougher to cater to the portion of society with higher IQs? Razib addresses this question with data and discusses why college is still the best bet.

Tuesday, September 30, 2008

Screw EndNote, Try Zotero

From Courthouse News (via Crooked Timber via Boing Boing):

"Thomson Reuters demands $10 million and an injunction to stop George Mason University from distributing its new Web browser application, Zotero software, an open-source format that allows users to convert Reuters' EndNote Software. Reuters claims George Mason is violating its license agreement and destroying the EndNote customer base.

Thomson Reuters also sued the Commonwealth of Virginia, in Richmond City Court. George Mason, founded in 1972, is a state institution.

Reuters says its EndNote Software "allows end users to search online bibliographic databases, organize their references, images, and .pdfs in any language, and instantly create bibliographic reference style files and figure lists in Thomson's proprietary .ens style format for over 3,500 journals and publications."

The complaint states, "Dr. Daniel J. Cohen, Associate Professor, Department of History and Art History, and the director of GMU's Center for History and New media, developed Zotero, which is a freely distributable, open-source software based research tool that allows users to gather, organize and analyze sources, including citations, and freely share the results with others."

The Center for History and New Media release "a new beta version of Zotero to the general public" on July 8. Reuters adds, "A significant and highly touted feature of the new beta version of Zotero, however, is its ability to convert - in direct violation of the License Agreement - Thomson's 3,500 plus proprietary .ens style files within the EndNote Software into free, open source, easily distributable Zotero .csl files."
It claims GMU reverse engineered Reuters' EndNote software to create Zotero"
I've heard of Zotero before, but it sort of irks me when a large corporation sues their userbase because they were smart enough to figure out their proprietary format on their own. It is not like Cohen and GMU stole company secrets. They reverse engineered the file format. Kudos to them I say! I am downloading Zotero right now and will be testing out that file format conversion feature on my library of 3500+ articles (with pdfs). It actually looks pretty cool! Check out their homepage. This will be a great addition my growing collection of open source software including NeoOffice, Mozilla and R. I'll test it out and post a review after several days. In the meanwhile, why not download and install Zotero for yourself in protest, or at least out of curiosity.

Applied Abstractions states:
"Zotero is a better tool, too. Shared lists, bibliographies, support for clipping from searches, including Google Scholar. Instant saves from browsing.

Time to move, methinks. Let me see, how hard would it be to migrate my 2100+ article database.... "

Friday, July 11, 2008

Free Access to Internet Resources Helps Conservation

ResearchBlogging.orgOK, a slight digression on the theme today. We are going to talk about a paper involving the endemic flora of Trinidad and Tobago, but we won't discuss plants. Instead, we'll talk about open access to information. In a paper just out in the conservation journal Oryx, Van Den Eynden and colleagues discuss how they evaluated plant endemism, conservation status and reserve effectiveness utilizing only freely available online resources from the internet and local Herbaria. There were several conclusions drawn about plant conservation, but here is a tidbit about how free access to information helped in assessing conservation status.

"Research institutes that use information technology to catalogue and distribute information online promote the advancement of knowledge at a global scale. Using such free-access online resources, and advice offered freely by taxonomy experts, a review of the endemic vascular plant species of Trinidad and Tobago and an assessment of their conservation status was carried out in a relatively short time and without significant cost. This in turn has been made freely available online (Van den Eynden, 2006). Such rapid evaluation of conservation status cannot replace the need for in depth field-based monitoring and assessment but it provides valuable baseline information for the identification and targeting of specific conservation and research needs. The methods used can be applied by most countries for initial assessments of plant extinction risks. Lack of resources or research data is no longer an argument not to do so."
Free information, it werks bitchez.

(Unfortunately their paper was NOT freely accessible, the irony of it all...)
-------------------------------------------------------------------------------------
Van den Eynden, V., Oatham, M.P., Johnson, W. (2008). How free access internet resources benefit biodiversity and conservation research: Trinidad and Tobago's endemic plants and their conservation status. Oryx, 42(03) DOI: 10.1017/S0030605308007321

Friday, June 27, 2008

Thoughts on Education and Popular Science Books

Brian from the wonderful blog Laelaps has great post titled "Everything I Needed to Know About Science I Didn't Learn in High School." Go there and read it if you haven't already. There are 2 things this brings up in my mind. The first is science education in high schools. There are billions of high schools in the United States, each with its own mission statement on how and what science should be taught.

Brian's point was that science education in high school did not prepare him for college-level science. My own personal experience is similar, but unlike Brian I never once gave a thought to being a scientist as a high school student. It was the furthest thing from my mind. Instead, I focused on plotting my path to rockstardom. Haven't heard of me? Haven't seen my video on MTv? Yeah, I didn't quite make it...

Memories of my class titled "Basic Science" have more to do with messing around and writing poetry, not conducting experiments or learning basic concepts. The other science class I took was Chemistry, which I barely passed to fulfill requirements for 2 years of science courses. Lets just say that by the end of the year our virgin instructor resigned and moved away somewhere. I was neither inspired by nor educated in science when I received my diploma. How I became a scientist is still a mystery to me to this day.

The second interesting point was about the price disparity between "real" science books and pseudo-science books. Many bloggers have pointed to recent examples of poor or misleading science writing. Yet, as a current job seeker with an extensive and broad background in science, I am unable to get a job in science journalism/writing because I do not have a journalism background. Apparently, it is unimportant to know anything in depth about science to write about it for a profession, with the rare exception of established individuals of course.

As Brian is knee-deep into writing his own popular science book, I understand this is probably heavy on his mind. I have also outlined the chapters for a popular science book I hope to start writing once I sort of particulars of my life. His comment is:

"It may not be representative of trends as a whole, but I couldn't help but notice that a new copy of Michael Behe's The Edge of Evolution costs about half as much as new books about evolution like Neil Shubin's Your Inner Fish; it's cheaper to pick up a piece of pseudoscience than a book about one of the most interesting recent finds in evolutionary biology. I doubt that we'll ever reach a point where good popular science books are distributed for free but I think that there does need to be a greater consciousness of how things like price can affect how widely science books are read."
CAN WE HAVE FREE SCIENCE BOOKS?

Good science writing is a skill and a service. As such, it should be possible to make money for this endeavor. I do not mean getting rich, but livable wages. If books are free how can a writer, and publisher, makes a livable wage? One roadblock may be in convincing granting agencies that it is in the public's interest to have easily accessible science books that are guaranteed to be inspiring, informative and entertaining. If educators and politicians are truly concerned about the decline of US science and math with respect other western countries, then this may be an investment worth exploring.

Is it possible for foundations, non-profits, government agencies and the like to fork over grant money for book proposals? Agencies can put out calls for proposals to write about aspects of their funded research (or have open calls). Additionally, inclined investigators can include funds in research grants for outreach via books. This can be done by the investigator or to fund a science writer interested in their research, or perhaps to support a graduate student in science journalism/english under the auspices of a co-advisor in that department. In particular, there are many benefits to the last approach. A graduate student in journalism or english could be co-advised by an advisors in science and journalism/english. A year of support from the scientist's grant to carry out all literature research, interviews and gathering of materials necessary to write a book about an area of mutual interest with the scientist. The rest of the student's support can be gained through teaching assistants or fellowships through the journalism/english program. Is there something like this in place somewhere?

To reduce the costs of popular science books, or to make them free, and increase their accessibility by printing them online or as a downloadable pdf file. This makes books open access (OA) and free to anyone a la PLoS/BMC. Perhaps PLoS or BMC could start an OA book publishing service. But the question still remains how an individual or organisation can profit, or at the very least have all expenses paid, from creating and publishing free/at cost popular science books. The author pay to publish scheme would certainly not attract many freelance authors. There is also the question of using other people's content for profit, such as photographs.

The only way I can see this happening is if science writers are able to secure grants to cover salary and expenses while writing a book. Anyone else have any thoughts or ideas?

Wednesday, June 4, 2008

International Communications - Dance It

ResearchBlogging.orgBee dancing has long been an interesting, if a bit controversial, subject for science with research articles focused on deciphering the meaning of dances, led by the pioneering work of Nobel Laureate Karl von Frisch. The essence of the dance is that successful foragers return to the hive and dance a figure 8. In the crossing section of the figure 8, the bee waggles its abdomen. The duration of the waggle section indicates the distance to the food source. The angle of the cross part (the tilt of the 8 if you will) indicates direction of the food source.

Now new Open Access research published in PLoS One looks at “international” communication capabilities between two species of honeybee: the eastern or asian honeybee, Apis cerana and the Western or European honeybee, Apis melifera. There are several species of honey bees that have been studied and each was observed as having a different dance style. To eliminate as many uncontrolled variables (primarily season, time, spatial scales, wind and geography of separate experiments) as possible, and be able to directly compare two species, a team of scientists from Australia, China and Germany creative a single hybrid hive with an A. cerana queen and a mixed worker population. They tried colonies with an A. melifera queen but in those colonies the A. cerana workers were killed and removed from the hive within 3 days. Even in the A. Cerana queened hybrid hives the team sometimes had to use active measures to keep the hive harmonious including spraying agitated bees with sugar syrup and honey water and removing troublemakers. Without active controls the hybrid hives lasted 20 days before the introduced workers were all killed or driven out, with active control the hives lasted in excess of 50 days. The harmonious hybrid hive also showed food transfer (trophollaxis) between species and mixed species workers tending the queen when she was laying eggs.

The researchers found that each species did have a distinct “dialect” primarily expressed in the duration of waggle to distance relationship. A. cerana bees waggled their butts significantly longer than A. melifera for all distances of food from the hive in both single species and hybrid hives. The team continued to evaluate understanding between the two species and found that the workers from either species were able to understand the dance of foragers regardless of the “dialect” of the dance and that the A. cerana were more likely to follow any successful forager than A. melifera. Both the direction and distance to the food source were accurately communicated between species.

Whats cool is that, as the researchers point out, this might be a social learning situation. Interspecific communication and potentially interspecific learning. It may be that if a longer term experiment can be successfully conducted, the two species of bees waggle durations may converge over a longer period.

Su, S., Cai, F., Si, A., Zhang, S., Tautz, J., Chen, S., Giurfa, M. (2008). East Learns from West: Asiatic Honeybees Can Understand Dance Language of European Honeybees. PLoS ONE, 3(6), e2365. DOI: 10.1371/journal.pone.0002365


Thursday, May 29, 2008

Ants, DNA Barcoding and Open Access

ResearchBlogging.orgThis week, as Alex Wild put it, Brian Fisher and Alex Smith "break the PLoS taxonomy barrier". In my last post, I evangelized and pontificated on the benefits of open access publishing in PLoS for taxonomy. That in itself is a ground-breaking accomplishment, but the paper by Fisher and Smith is interesting in own right. They report on ants in the Malagasy region from 2 genera, Anochetus and Odontomachus, and describe 3 species new to science. Additionally they evaluate the efficacy of DNA Barcoding as a "tool to accelerate species identification and description".

Of Ants and Islands

Madagascar is a unique island off the eastern coast of Africa with a highly endemic fauna, meaning that many of the creatures found there are found no where else on this planet. Fisher and Smith also report the first records from the nearby islands of Seychelles and Comoros. Using 500 individuals from 6,000 leaf litter samples, 4,000 pitfall traps, and 8,000 additional hand collecting events over a 14 years period, they were able to group together worker, queen and male castes. The descriptions are fine and document the features and variation in morphology well. One criticism I have is they contain no information that I could see on the etymology of the new species. Etymology is where the author describes what the name means. For the 3 new species described in the genus Anochetus, each is given a specific epithet honoring an individual, a Mr./Ms. Bolton, Goodman and Patterson. Who these people are that should get immortalized in ants we shall never know.

DNA Barcoding and Species Assessment

While the description and discussion on the ants' distributions are important for biodiversity studies, the authors spend a good deal of the paper discussing the efficacy of DNA barcoding in helping to delineate taxa. DNA barcoding is using a standard gene, typically the mitochondrial COI gene, as a marker to identify a species. This is useful when there is a specimen voucher with a known barcoded sequence to match unknown to. There is a good deal of controversy surrounding its use in taxonomy. Many taxonomists agree that describing species based only on a short snippet of DNA is bad practice.

Fisher and Smith use DNA barcoding on their ants for two reasons. The first is group the different castes together. Ants are social insects separated into workers, queens and males. Some ant societies have even more castes, such as sanitary workers and fungal farmers. Because the different ant castes are morphologically different from one another, it is sometimes difficult to tell closely related species apart, especially if they co-occur in a similar location. The authors assert that DNA barcoding was the "principal source of data" that group together different castes, sizes and genders.

The other reason is to rapidly assess species identification. Fisher and Smith analyzed all the collections of a genus. Those showing a high degree of sequence divergence, i.e. the outliers, were "culled" from the analysis for morphological scrutiny. Traditionally, each individual would have to have measurements and notes taken on the morphological characters of interest. This is an extremely time-consuming process, but amplify that to 500 individuals of ants. The barcode method actually allowed them find the interesting individuals right away. This might not work for every taxon, but considering how affordable DNA sequencing has become this practice might take off for large collections. This will be extremely important as many biodiversity inventories are ongoing or coming to a close in the near future.

Another use for DNA barcoding brought up by Fisher and Smith is hypothesis generation. Hopefully most people will agree me (and the study's authors) that species are testable hypotheses. Like any scientific hypothesis, it is subject to refinement with new data. The barcode data helped Fisher and Smith to generate testable hypotheses regarding within-species divergence, several interesting aspects of biogeography (see page 20, last paragraph of first column for list) and female-limited dispersal capabilities in species with wingless queens.

I'll let Fisher and Smith have the final word:

"Nothing can replace the countless hours of careful observation necessary to understand variation and to delimit species boundaries. However, the addition of sequence data provides a means to create short-term results from inventories and at the same time generate data helpful to taxonomists. For taxonomists, sequencing highlights the specimens most deserving of focused study."
Disclaimer: Brian Fisher was my Evolution teaching assistant at UC-Davis. Although he is unlikely to remember me anyways, but the contents of this post are not in any way an artifact of this coincidence.
-----------------------------------------------------------------------------------------------
Fisher, B.L. & Smith, M.A. (2008). A Revision of Malagasy Species of Anochetus Mayr and Odontomachus Latreille (Hymenoptera: Formicidae). PLoS ONE, 3(5), e1787. DOI: 10.1371/journal.pone.0001787

Wednesday, May 28, 2008

PLoS ONE Publishes First Taxonomic Paper

PLoS ONE has heeded the call of the systematic wild and made open access history with an excellent paper by Fisher and Smith on the ants of Malagasy region with an evaluation of the role of DNA barcoding in species identification and description. What makes this particular article so special? It is the first time a species description has been published in a PLoS journal! I applaud PLoS ONE at taking the initiative and contributing to advancing the science of systematics and biodiversity research. Maybe it was my call to PLoS to publish taxonomy open access or maybe it was just destiny. I will talk about the ant paper in a separate post. First, I would like discuss further the role of open access publishing in taxonomy.

Why should one support open access publishing of taxonomic papers?
Visibility is important to the field of systematics, where the relevance is often lost amidst the taxonomic jargon. By removing the subscription barrier, taxonomists make their work accessible and noticeable to researchers all over the world. Increasingly, the need has never been greater for high quality taxonomy. The treatment of neglected tropical diseases relies on proper identification a the pathogen or parasite. Species form the fundamental unit of much of evolution and ecology. Sound knowledge of species and their attributes is basic to all other fields of biology ranging from the molecular to the metacommunity. While scientists might not agree on what a species is, there is no doubt about their importance and the necessity to identify and describe them.

The time is now for taxonomy and taxonomists to enter the digital age. New web technologies can prove effective at linking papers, potentially increasing readership and bringing disparate fields together. For instance, a paper describing a new species of pathogenic nematode can have hyperlinked keywords that summarize the findings, i.e. "Nematoda" "Genus species sp.nov." "Genus species (of host)" "Pathogenesis" "Endoparasite" "Locality Information", etc. Other articles of interest with hyperlinked keywords can be linked together for researchers to uncover. Species names themselves can be linked to the original paper, so one can find basic information about that species. This will make it easier to ground-truth simple observations about a species that can affect interpretations in other research, such as where it has been described from, variation in characteristics between sexes and sites, behavioral and diet observations and life history traits.


Why should one care if PLoS ONE publishes taxonomy?
PLoS ONE is an innovative publishing model that is part of the PLoS (Public Library of Science) network. PLoS is already established as a leader in online, open access publishing of high quality research in biology and the health sciences. The importance of the papers published in PLoS journals is well-recognized by academics and funding agencies. PLoS ONE, being relatively new, has yet to acquire the same metrics as the other 6 journals. Seeing the diversity and quality of papers being published, there is little doubt the initial metrics will reflect positively on the mission of PLoS. The visibility and reputation that articles published in PLoS journals gain will benefit taxonomy.

PLoS ONE's model allows for post-publication tools such as annotating and commenting on articles. Instead of articles being the final word on an experiment or hypothesis, they become the beginning of a conversation. For taxonomy, one can comment on new observations or developments in that species. You can drop a link on the comments of that paper to a revision you did or another paper investigating that species physiology. In short, the PLoS ONE model lets a paper, or species description, have a permanent home on the web where it be used as a record of its existence and any discussion of that species.

Some barriers exist to publication in a journal like PLoS ONE. Taxonomy is not a rich science despite its unsung significance. In the open access model, the author pays a publication fee to offset the journal making the paper freely available in perpetuity. Its a trade-off and it prevents publishing houses from double dipping into funds by charging institutions for access to content and charging authors page fees. Libraries and institutions worldwide can openly access content irrespective of their financial status, as can members of the public whose tax dollars pay for a good chunk of research. One obvious solution is for more funding to taxonomy and systematic research. Publication fees can be written into new grants or possibly creation of special grants from money saved from journal subscriptions can be used to pay open access fees. PLoS journals also make sure that the ability of authors to pay publication charges is not a consideration in the decision whether to publish. They can provide fee waivers for authors without grants or other financial resources.

This may encourage more papers being published to include a synthesis of many taxa or to be written in monographic style encompassing the fauna of a region per se. Putting more taxa into the paper may increase the bang for the buck. You pay less in fees (per page charges are eliminated in online publishing) and perhaps make the paper more citable. I am not suggesting this works in all cases, more information in a paper certainly doesn't make a better paper. Certainly there are situations where grouping taxa into a single article may make sense, i.e. The Crustacea of Coastal Norway instead of a 2 papers on shrimp and a paper on crabs.

Another barrier deals with requirements by the International Code of Zoological Nomenclature, which promotes "stability and universality in the scientific names of animals and to ensure that the name of each taxon is unique and distinct". One requirement (Chapter 3, Article 8.6) for articles published online is for deposition of the printed article in "at least 5 major publicly accessible libraries which are identified by name in the work itself". PLoS ONE went out of their way to work with leading institutions in 5 countries to ensure the proper cataloging of their first taxonomic paper. This willingness to do what it takes to get quality publications published irrespective of their discipline highlights their commitment to their core principles, in particular those of Breadth, Cooperation, Internationalism, and Science as a Public Resource.

Should taxonomists forego traditional publishing outlets?
The better option would be for those outlets to go online and open access! If there is some success to PLoS ONE in their venture to publish papers of a taxonomic nature, hopefully it will inspire established journals to follow suit. If you believe strongly in the force of the digital age to implement positive change in science, support open access initiatives by publishing your articles there. One may posit that hybrid journals, where authors may elect to pay an additional fee to make their article accessible online for free, is a step forward in the right direction. Noted open access proponent Peter Suber notes one should proceed with caution when electing to publish in a hybrid journal for several reasons. In particular, hybrid journal options do not free up subscription money from libraries. Because it is a risk-free strategy for journals, there is not an incentive to get rid of subscriptions fees all together, since most authors do not elect the free-access option. Many publishers still do not make their publishing model or data on the efficacy of the hybrid option available. This makes it difficult to police whether they are reducing subscription fees in relation to author uptake of the free-access option, where high fees are paid to offset subscription fees.

In conclusion, I applaud PLoS ONE for working hard to pave the way for publications with a taxonomic nature to be published truly open access and online. I would like to see more web tools being utilized in online scientific publishing. The tools exist and the potential is great for weaving together the threads of science. I look forward to submitting my next paper to a PLoS journal!

Saturday, May 24, 2008

Crustacean Larval Degeneration

ResearchBlogging.org

I remember the brief discussion in Invert Biology about the 100+ year old mystery of the "y-larvae" crustacean. The jist of the conversation was that there was still much to learn about larval development of many crustaceans and there were some which were known as larvae but not as adults, for instance... "y-larvae" (also known as Facetotectans), a taxa of crustaceans which is described solely on the basis of the naupliar and cyprid larval stages.


Pachenik's Invertebrate Biology, the standard undergraduate textbook for invert biology/zoology, doesn't mention y-larva at all, while Brusca & Brusca's Invertebrates, 2nd Edition, gives them a single image and a one paragraph nod as members of the subclass Thecostraca, infraclass Facetotecta:


Infraclass Facetotecta
Monogeneric (Hansenocaris): The "y-larvae", a half-dozen small (250-620 μm) marine nauplii and cyprids (Figure 16.16I). Although known since Hansen's original description in 1899, the adult stage of these animals has still not been identified (although it has been suggested that they might be the "missing" larval progeny of sexual reproduction in tantulocarids). The prehensile antennules and hooked labrum of the y-cyprids suggest that the adults are parasitic. For details see Høeg and Kolbasov (2002).

Fortunately, The Atlas of Marine Invertebrate Larvae had more information on them, including illustrations of both nauplius and cypris y-larvae.


Kevin recently wrote up a great piece on the related Rhizocephalans at Deep Sea News complete with pictures from his own research. Catalogue of Organisms has a nice quick review of the parasites of subclass Thecostraca with a focus on the y-larvae and a description of the naupliar and cyprid stages. As mentioned in both those articles it is the cyprid larval morphologies that links all the Thecostraca species together.


This week an open access research article in BioMed Central's BMC Biology significantly extends the knowledge of these potentially important crustaceans. In their paper Henrik Glenner, Jens Høeg, Mark Grygier, and Yoshihisa Fujita report both a great diversity of y-larvae and document a new metamorphic stage of development.


In recent years the number of Facetotecta species has increased as new species have been described worldwide. The author's study area, Sesoko Island near Okinawa, Japan, was also the area of intensive sampling for Facetotectans. That sampling revealed 40 new species, and a density that made y-larvae a significant portion of the plankton, suggesting that the adult form may be ecologically important as well.


What I found most interesting in the paper, however, was the inducing and documentation of a previously unobserved juvenile stage of y-larvae. Up to now all y-larvae were observed as one of 5 naupliar instars or the next stage, a non-feeding cyprid. No one has found or been able to raise y-larvae past this cyprid stage.



The authors tried several compounds known to induce metamorphosis in the cyprid stage of related parasitic barnacles. They found that only 20-hydroxyecdysone (20-HE) induced metamorphosis in the y-cyprid. They then used photo and video to document the successful metamorphosis of the cyprids exposed to 20-HE. The cyprids transformed from an articulated, segmented form to a simple, unsegmented, pulsating, slug-like juvenile stage, which the authors have called the ypsigon. The ypsigon is without a gut, but has very visible fat globules throughout its body. The cyprid eyes and muscles are visible but degenerating in the ypsigon as well. The ypsigons underwent a molt 24 hours post metamorphosis as well. The study was terminated by preserving the the juveniles at 48h post metamorphosis.



This same morphological larval devolving has also been recently described in the vermigon stage of Rhizocephala, a connection that is a "stuning example of convergent evolution." This also suggests that the adult form of the y-larvae, when finally found, will be endoparasitic. The authors note that the analogy with Rhizocephalans suggests that the adult form will also have a "highly simplified structure" and that this possibility may explain why the adult form remains so hard to find.



Glenner, H., Hoeg, J., Grygier, M., Yoshihisa, F. (2008). Induced metamorphosis in crustacean y-larvae: Towards a solution to a 100-year-old riddle. BMC Biology, 6(21) DOI:10.1186/1741-7007-6-21.

Aditional pictures are in the PDF of the paper and videos of the metamorphosis are available on the BioMed Central website:


  1. Free swimming y-cyprid (mpg, 5.85 MB)
  2. Ypsigon partially escaped from y-cyprid (mpg, 8.81 MB)
  3. Ypsigon just escaped from y-cyprid (mpg, 7.2 MB)
  4. Ypsigon after escape from y-cyprid (mpg, 8.93 MB)
  5. Free ypsigon in process of molting (mpg, 6.94 MB)

Wednesday, February 20, 2008

Is the World of Taxonomy Ready for PLoS Systematics?

Taxonomy has historically been relegated to the back alleys of the publishing world. In-house museum journals, obscure regional or specialty publications and even more obscure foreign language academy reports have hidden many species descriptions, revisions and monographs from the eyes of interested biologists. Not to say this is the only reason for current crisis in taxonomy (see Rodman & Cody 2003), but it certainly contributes. The hard work and insurmountable dedication of the taxonomist to furthering their group of interest should be rewarded and not locked away for the other 5 people in the world working on that genus of organism. Ecologists rely on species descriptions to compare the fauna they find in their studies with the published literature. The imperative nature of correct identifications of species cannot be understated in the medical, infectious disease, and parasitology literature. Without a doubt, quality taxonomic research is invaluable, in high demand and highly underappreciated by funding agencies and other scientists, even those who rely on such work (PEET not withstanding)

The lack of visibility of taxonomic research and the failure to make systematics as a whole relevant to the everyday lives of people has been a burden on the community. Much of the work is tedious yet vital to biodiversity studies, medicine and biotechnology. IrregardlessIrrespective of how one chooses to define a species, the species debate, the issue of perception is pervasive in this field. Many taxonomists are made to feel inferior to their colleagues doing experimental work who bring in much larger grants. The truth of the matter is that taxonomy is not a profitable venture for academic institutions why rely in part on the money they skim off of grants. It is a traditionally an inexpensive field, even with the use of molecular tools to aid in phylogenetic reconstructions. You can easily get by with a microscope, computer and digital camera. DNA extractions are relatively inexpensive and you can send the DNA product off to get analyzed elsewhere affordably, not needing to purchase expensive sequencing equipment.

Taxonomists need to improve the visibility and relevance of the field to ensure a continued, or at the least renewed, interest for the study of species, either from a theoretical, philosophical or practical framework. One way to contribute to increasing the visibility of taxonomic research is to publish in Open Access (OA). Several studies have shown there to be a citation advantage in OA papers (Eysenbach 2006). Zootaxa has taken the initiative in the taxonomy world by offering to publish any peer-reviewed taxonomic work free of charge for subscriber access and $20/page for OA. Other taxonomic "niche" journals exist with various financial differences, but have yet to attain the reputation of Zootaxa to my knowledge. But it is my own feeling that Zootaxa is only known well among other taxonomists, with the majority of other beneficiaries either unable to obtain articles because the bulk of the articles are locked behind the subscriber wall. This also has the effect of making less text available for search engines, such as Google Scholar.


The Public Library of Science (PLoS) may help to alleviate part of the problems of visibility. They have grown to represent the standard in OA publishing and have a successful business model. Their success among scientists can measured by the fact that between all their publications they are PLoS ONE alone is publishing on average 50 high quality papers per week. This is higher than journal, even the weekly big names. It is clear that their model is successful and scientists are actively seeking them out to publish their research. This is a clear argument in favor of wide dissemination (Chapter 3, Recommendation 8A of the Code):
"Authors have a responsibility to ensure that new scientific names, nomenclatural acts, and information likely to affect nomenclature are made widely known. This responsibility is most easily discharged by publication in appropriate scientific journals or well-known monographic series and by ensuring that new names proposed by them are entered into the Zoological Record."
PLoS can make nomenclatural acts widely disseminated by providing them free of charge and out in open for all interested individuals with computer access. The steadily increasing popularity of PLoS ensures taxonomic work reaches a wide audience with a broad range of backgrounds. For instance, if you are working on parasites in humans and are describing a new species of muscle tissue boring pathogenic nematode you can tag the article as "medicine", "Nematoda", "New species", "Systematics", "Pathogen", etc. to reach audiences in non-parasitology fields.

Why would a taxonomist want to reach non-taxonomic areas of science? Citations are low in taxonomy. Species descriptions are read, the names are used in many publications, hopefully with author and year, but somehow the paper describing said species remains out of the list of references. This means indexing services like PubMed and Web of Science miss the uncited species descriptions in the tangled web of cross-reference. For example, Drosophila melanogaster Meigen, 1830, should be the most cited paper in recorded history due to the amount of work on this model organism. So what of biodiversity studies with hundreds of species? This does pose a problem. Nowadays, there is supplementary online material and the citations could be referred there so long as they are properly indexed and the gods who fiddle around with such productivity metrics recognize these citations.

Another argument to get your work widely read is that universities aren't appearing to hire people to do basic taxonomy anymore. They need another hook, perhaps molecular evolution or ecology. Even museums are tending to hire individuals with outside specialties. I'm not sure where the future of taxonomy may lie, but larger questions need to be addressed than just what is out there. Taxonomic research helps in many areas of biological science. The more people that know of your work, the more opportunities may be to collaborate on new projects with different directions, making you a more viable applicant. Besides who wants to invest so much into something only to see it hidden away forever?

Are there any barriers to publishing a species description with PLoS? Yes, Chapter 3 of the Code, Article 8.6 states:
"Works produced after 1999 by a method that does not employ printing on paper. For a work produced after 1999 by a method other than printing on paper to be accepted as published within the meaning of the Code, it must contain a statement that copies (in the form in which it is published) have been deposited in at least 5 major publicly accessible libraries which are identified by name in the work itself."
So species names published in an electronic format are only valid if depositions of the article in question are made at a minimum 5 public institutions. These can be public, university and museum libraries. This barrier is easily overcome if PLoS makes it easy on the authors by forging an agreement 5 institutions to deposit papers in their collections. I would recommend the Smithsonian, the Field Museum and any 3 universities in the U.S. The authors can even archive a paper in their own university's or museum's libraries. Conveniently, PLoS does offer itself in print version for those interested in deforestation.

Another barrier is the high cost of OA publishing. Currently, PLoS ONE charges $1250 for a research article, though they do offer fee waivers to authors who cannot the steep price. For the average working taxonomist, the price would need to drop to at most $600. This is a price I was quoted for a small american journal for a 20 something page description of a new shrimp with COI phylogeny. It was actually twice that, but I can some page charges waived for being a society member. My coauthor and I were shocked when we received the estimate. For almost the same price I could have published OA somewhere else. The costs are especially prohibitive to taxonomists from the developing world. Many of them have done a superb job and picked up the slack after north american taxonomy slipped away because of poor funding. Yet their funds are even less than ours in most cases.

In conclusion, OA publishing offers taxonomists higher visibility, potentially higher citations and a broader readership. The barriers to electronic publishing can be easily overcome with a little initial work. PLoS is the leader in OA publishing and has a strong reputation to maintain among the non-OA or hybrid journals that exist out there, thus the quality of research coming from PLoS journals is high. In particular PLoS ONE, offers several features attractive to taxonomists and idealistic scientists like myself. Their system allows any user to annotate, comment and respond to articles becoming a part of the permanent record of that article. This post-review system allows articles to become a conversation. If another taxonomist were to discover a new character 10 years after the publication of a species name, they could go that article and make an annotation or comment on that article that could then be considered by all other readers. Taxonomists have little to lose and everything to gain by publishing with PLoS and choosing OA.
____________________________________________________________________

Eysenbach, G. (2006) Citation Advantage of Open Access Articles. PLoS Biology, 4, e157.

Meigen, J.W. (1830) Systematische Beschreibung der bekannten europäischen zweiflügeligenInsekten, Bd. 6. F.W. Forstmann, Aachen.

Rodman, J. E., and J. H. Cody (2003) The taxonomic impediment overcome: NSF’s Partnerships for Enhancing Expertise in Taxonomy (PEET) as a model. Syst. Biol. 52:428–435.

Wednesday, February 6, 2008

New Malacology Open Access Journal

For everything malacological and freely available over the net! But they make no mention of page charges...

"MalaCo (ISSN 1778-3941), a peer reviewed journal referenced by the Zoological Record, is an electronical open access publication. Articles, in French or English, focus on ecology, biology, systematics and conservation of continental Molluscs. MalaCo publishes original work as well as news, short notes and practical tools for species identification.

Since November 2007, articles are available on the MalaCo website as soon as they are accepted. To submit papers, please see author recommendations and contact the editorial team.

Hoping to publish your work soon,

Best wishes,
The editorial team

Jean-Michel Bichain / MNHN Paris / France
Xavier Cucherat / Biotope consultancy / France
Benoît Fontaine / MNHN Paris / France
Olivier Gargominy / MNHN Paris / France
Vincent Prié / Biotope consultancy / France

Journal Home: http://www.journal-malaco.fr
Diffusion: open access
Online ISSN: 1778-3941
Frequency: annual or biennial
Language: French and English
First issue: May 2005
Current issue: 5 / 2007
Referenced by: Zoological Record - CIRS - BiologyBrowser (Thomson)

Contact: jean-michel[dot]bichain[at]educagri[dot]fr"

Saturday, January 12, 2008

New Marine Biology Open Access Journal

I just recently discovered a new open access journal dedicated to marine biology. Its creatively titled The Open Marine Biology Journal published by Bentham Open.

The Open Marine Biology Journal is an Open Access online journal, which publishes Research articles, Reviews and Letters in the field of marine biology, aiming at providing the most complete and reliable source of information on current developments in the field.

Each peer-reviewed article that is published in a Bentham OPEN Journal is universally and freely accessible via the Internet in an easily readable and printable PDF format.
I must say its about time! But will anyone publish here? Its not very visible right now and only 2 articles have been published:
Volume 1
Articles


Partial Replacement of Fishmeal by Lyophylized Powder of the Microalgae Spirulina platensis in Pacific White Shrimp Diets


pp.1-5 (5) Authors: R. Hanel, D. Broekman, S. de Graaf, D. Schnack
Volume 2
Articles


Influence of Macroalgal Cover on Coral Colony Growth Rates on Fringing Reefs of Discovery Bay, Jamaica: A Letter Report


pp.1-6 (6) Author: M. J.C. Crabbe

What it does have though are competitive publications fees (compared to PLoS, or journals with open-access options). Here is the fee schedule:
  • PUBLICATION FEES: The publication fee details for each article published in the journal are given below:
  • Letters: The publication fee for each published Letter article submitted is $600.
  • Research Articles: The publication fee for each published Research article is $800.
  • Mini-Review Articles: The publication fee for each published Mini-Review article is $600.
  • Review Articles: The publication fee for each published Review article is $900.
  • Once the paper is accepted for publication, the author will receive by email an electronic invoice.
Submissions from the Editorial Board Members of the journals will receive a special discount of 50% on the total publication fee. Submissions by authors from developing countries will receive a discount of 30% on the total publication fee charge.
I don't know if I'll ever give it a try, but I think it deserves some support for its efforts. I'll be keeping an eye on what is getting published there though. It'll be hard to compete with something like PLoS ONE. Even though PLoS ONE is more expensive (almost double!), it already has high visibility and quality publications by renowned experts in their fields. I do not mean it as an insult, but I didn't recognize most of the editorial board of The Open Marine Biology Journal, nor the authors of the 2 articles. Granted I am not so experienced in the many niches of marine biology, but I do know who the major players are. Regardless, good luck to them and I hope everyone will keep an eye out for the articles coming from this new open access journal.