Category Archives: General

Great Lakes hemorrahagic fish virus surprise

Viral hemorrhagic septicemia (V.H.S.) is an invasive virus that causes internal bleeding and organ failure of most of the sport and commercial fish in the Great Lakes. It has already killed tens of thousands of fish in the eastern Great Lakes, and is now spreading through the Great Lakes. It is likely to indirectly change the Great Lakes’ already unstable ecological structure. A New York Times article Fish-Killing Virus Spreading in the Great Lakes and the Toronto Star article Pathogen stalks fish report on the spread of the virus:

One of Dr. Casey’s colleagues researching the virus, Dr. Paul Bowser, a professor of aquatic animal medicine, added, “This is a new pathogen and for the first number of years — 4, 5 or 10 years — things are going to be pretty rough, then the animals will become more immune and resistant and the mortalities will decline.”

No one is sure where the virus came from or how it got to the Great Lakes. In the late 1980s, scientists saw a version of V.H.S. in salmon in the Pacific Northwest, which was the first sighting anywhere in North America. V.H.S. is also present in the Atlantic Ocean. But the genesis of a new, highly aggressive mutated strain concentrating on the Great Lakes is a biological mystery.

“We really don’t know how it got there,” said Jill Roland, a fish pathologist and assistant director for aquaculture at the U.S. Department of Agriculture. “People’s awareness of V.H.S. in the lakes was unknown until 2005. But archived samples showed the virus was there as early as 2003.”

Scientists pointed to likely suspects, mainly oceangoing vessels that dump ballast water from around the world into the Great Lakes. (Ships carry ballast water to help provide stability, but it is often contaminated and provides a home for foreign species. The water is loaded and discharged as needed for balance.)

Fish migrate naturally, but also move with people as they cast nets for sport, for instance, or move contaminated water on pleasure boats from lake to lake.

The United States Department of Agriculture issued an emergency order in October to prohibit the movement of live fish that are susceptible to the virus out of the Great Lakes or bordering states. The order was later amended to allow limited movement of fish that tested negative for the virus.

“Getting rid of it is extremely hard to foresee,” said Henry Henderson, director of the Natural Resources Defense Council’s Midwest office in Chicago. “These species spread, and reproduce. It is a living pollution.”

From the Toronto Star:

The deaths to date are just a small fraction of the millions of fish in the lakes. Even so, governments around the lakes are worried enough to try unprecedented steps to contain the virus.

VHS is suspected to be the latest on a growing list of destructive species – including zebra mussels and round gobies – brought into the lakes from Europe and Asia, usually in the ballast water of ocean-going ships.

The potential impact on fish isn’t the only concern. VHS doesn’t harm humans, but that doesn’t mean others that follow will be so benign, says Jennifer Nalbone, of Great Lakes United, a cross-border advocacy group based in Buffalo that for years has demanded strict controls on ballast.

“It’s a wake-up call that the lakes are vulnerable to any pathogen getting in here. We need to try to slow the spread but also to close the door.”

 

How to write consistently boring scientific literature

Danish biology professor Kaj Sand-Jensen has a new Oikos paper (2007 – 116: 723-727) which provides advice on How to write consistently boring scientific literature:

A Scandinavian professor has told me an interesting story. The first English manuscript prepared by one of his PhD students had been written in a personal style, slightly verbose but with a humoristic tone and thoughtful side-tracks. There was absolutely no chance, however, that it would meet the strict demands of brevity, clarity and impersonality of a standard article. With great difficulty, this student eventually learned the standard style of producing technical, boring and impersonal scientific writing, thus enabling him to write and defend his thesis successfully.

I recalled the irony in this story from many discussions with colleges, who have been forced to restrict their humor, satire and wisdom to the tyranny of jargon and impersonal style that dominates scientific writing. Personally, I have felt it increasingly difficult to consume the steeply growing number of hardly digestible original articles. It has been a great relief from time to time to read and write essays and books instead.

Because science ought to be fun and attractive, particularly when many months of hard work with grant applications, data collections and calculations are over and everything is ready for publishing the wonderful results, it is most unfortunate that the final reading and writing phases are so tiresome.

I have therefore tried to identify what characteristics make so much of our scientific writing unbearably boring, and I have come up with a top-10 list of recommendations for writing consistently boring publications.

  • Avoid focus
  • Avoid originality and personality
  • Write long contributions
  • Remove implications and speculations
  • Leave out illustrations
  • Omit necessary steps of reasoning
  • Use many abbreviations and terms
  • Suppress humor and flowery language
  • Degrade biology to statistics
  • Quote numerous papers for trivial statements

Via Erik Andersson.

Global English and Linguistic Diversity

Today roughly 1/4 of the world’s people speak English (1.5 Billion: 400 million people as a first language; 300-500 million as a second language; and another 750 million speak some English). There are about 3X more non-native speakers than native speakers. The IHT (April 9, 2007) article Across cultures, English is the world discusses the global dominance of the English language.

Riding the crest of globalization and technology, English dominates the world as no language ever has, and some linguists are now saying it may never be dethroned as the king of languages.

Others see pitfalls, but the factors they cite only underscore the grip English has on the world: cataclysms like nuclear war or climate change or the eventual perfection of a translation machine that would make a common language unnecessary.

Some insist that linguistic evolution will continue to take its course over the centuries and that English could eventually die as a common language as Latin did, or Phoenician or Sanskrit or Sogdian before it.

“If you stay in the mind-set of 15th-century Europe, the future of Latin is extremely bright,” said Nicholas Ostler, the author of a language history called “Empires of the Word” who is writing a history of Latin. “If you stay in the mind-set of the 20th-century world, the future of English is extremely bright.”

That skepticism seems to be a minority view. Experts on the English language like David Crystal, author of “English as a Global Language,” say the world has changed so drastically that history is no longer a guide.

“This is the first time we actually have a language spoken genuinely globally by every country in the world,” he said. “There are no precedents to help us see what will happen.”

“English has become the second language of everybody,” said Mark Warschauer, a professor of education and informatics at the University of California, Irvine. “It’s gotten to the point where almost in any part of the world to be educated means to know English.”

New vernaculars have emerged in such places as Singapore, Nigeria and the Caribbean, although widespread literacy and mass communication may be slowing the natural process of diversification.

“We may well be approaching a critical moment in human linguistic history,” Crystal wrote. “It is possible that a global language will emerge only once.”

After that, Crystal said, it would be very hard to dislodge. “The last quarter of the 20th century will be seen as a critical time in the emergence of this global language,” he said.

The spread of English comes, at least partly, at the expense of other languages. Today, 3,000 of the world’s 6,000-7,000 languages are viewed to be endangered. 95% of languages are spoken by only 6% of the world’s people – 25% have less than 1000 speakers. This simplification of the world’s languages represents a huge loss of accumulated cultural knowledge, despite the richness that also emerges in the global diversification and richness of English. For more on endangered languages see Foundation for endangered languages, Cultural Survival, and Ethnologue (which lists over 500 nearly extinct languages).

Planet: global change website

PlanetenFredrik Moberg at Albaeco has set up an English version of the website for Swedish TV’s The Planet a series of four programs about Global Environmental Change.

The website provides articles, animations, and videos to illustrate the processes involved in global environmenal change. It is in Flash – which is a bit annoying for linking (you can’t), but among other things – it includes bits on tipping points in the climate system, resilience, and scenarios.

There are also some silly games to accompany the documentary – but they are only available in Swedish.

Why publish in high-priced, for-profit journals?

An article titled The Economics of Ecology Journals by Bergstrom & Bergstrom (Front Ecol Environ 2006; 4(9):488-495) was recently brought to my attention. The authors analyzed price data and citations from 92 regularly published primary research ecology journals and, in a nutshell, determined that for-profit journals are approximately five times as expensive as their non-profit counterparts. Even when page charges, common with both non-profit and jointly published journals, are factored in, total revenue is approximately three times higher for the for-profit journals. This price difference exists despite the fact that the higher-priced journals do not have corresponding higher quality, as measured by citation rates.

Bergstrom & Bergstrom go on to note the trends of increasing library expenditures on serials (doubling since 1986) as well as the increased proportion of expensive for-profit publications. This trend is especially puzzling given the relatively recent transition to online access, which has come at a generally low cost to publishers. The authors next ask why these price differences persist and then present their answer in game theory terms. Basically, scientists will publish where other top-scientists publish and a shift to lower-cost, non-profit journals (with greater distribution and higher citation rates!) will require a coordinated shift within the scholarly community. They conclude:

Finally, from the broader community perspective, the scientific community as a whole would benefit if over-priced journals were displaced by journals priced at or near average cost. The fraction of library budgets that is currently going to the shareholders of large commercial publishers could instead by used to provide services of genuine value to the academic community. Professional societies and university presses could help by expanding their existing journals or starting new ones. Individual scholars could advance this process in many ways: by contributing their time and efforts to the expansion of these non-profit journals, by refusing to do unpaid referee work for overpriced commercial publications, by self-archiving their papers in preprint archives or institutional repositories, and by favoring reasonably priced journals with their submissions.

As a side, it is interesting to note that only three of the 107 ecology journals listed in the 2005 Journal Citation Reports were open-access journals, with all of their content freely available on the web. This category of course, includes Ecology & Society (www.ecologyandsociety) which was highlighted in another article recently by Kueffer et al. (Towards a Publication Culture in Transdisciplinary Research, GAIA 16/1 (2007):22-26) for its contribution to transdisciplinary research publishing.

Latour rethinks the social construction of science

Bruno Latour, an eminent figure in social studies of science and science policy, writes Why Has Critique Run out of Steam?  From Matters of Fact to Matters of Concern in Critical Inquiry 2004 30(2).

Wars. So many wars. Wars outside and wars inside. Cultural wars, science wars, and wars against terrorists. Wars against poverty and wars against the poor. Wars against ignorance and wars out of ignorance. My question is simple: Should we be at war, too, we, the scholars, the intellectuals? Is it really our duty to add fresh ruins to fields of ruins? Is it really the task of the humanities to add deconstruction to destructions? More iconoclasm to iconoclasm? What has become of critical spirit? Has it not run out of steam?

Quite simply, my worry is that it might not be aligned to the right target. To remain in the metaphorical atmosphere of the time, military experts constantly revise their strategic doctrines, their contingency plans, the size, direction, technology of their projectiles, of their smart bombs, of their missiles: I wonder why we, we alone, would be saved from those sort of revisions. It does not seem to me that we have been as quick, in academe, to prepare ourselves for new threats, new dangers, new tasks, new targets. Are we not like those mechanical toys that endlessly continue to do the same gesture when everything else has changed around them? Would it not be rather terrible if we were still training young kids–yes, young recruits, young cadets–for wars that cannot be thought, for fighting enemies long gone, for conquering territories that no longer exist and leaving them ill-equipped in the face of threats we have not anticipated, for which we are so thoroughly disarmed? Generals have always been accused of being on the ready one war late–especially French generals, especially these days; what would be so surprising, after all, if intellectuals were also one war late, one critique late–especially French intellectuals, especially now? It has been a long time, after all, since intellectuals have stopped being in the vanguard of things to come. Indeed, it has been a long time now since the very notion of the avant-garde–the proletariat, the artistic–has passed away, has been pushed aside by other forces, moved to the rear guard, or may be lumped with the baggage train. We are still able to go through the motions of a critical avant-garde, but is not the spirit gone?

In this most depressing of times, these are some of the issues I want to press not to depress the reader but to press ahead, to redirect our meager capacities as fast as possible. To prove my point, I have not exactly facts rather tiny cues, nagging doubts, disturbing telltale signs. What has become of critique, I wonder, when the New York Times runs the following story?

“Most scientists believe that [global] warming is caused largely by manmade pollutants that require strict regulation. Mr. Luntz [a lobbyist for the Republicans] seems to acknowledge as much when he says that “the scientific debate is closing against us.” His advice, however, is to emphasize that the evidence is not complete. “Should the public come to believe that the scientific issues are settled,” he writes, “their views about global warming will change accordingly. Therefore, you need to continue to make the lack of scientific certainty a primary issue.”

Fancy that? An artificially maintained scientific controversy to favor a “brown backlash” as Paul Ehrlich would say.  Do you see why I am worried? I myself have spent sometimes in the past trying to show the “lack of scientific certainty” inherent in the construction of facts. I too made it a “primary issue.” But I did not exactly aim at fooling the public by obscuring the certainty of a closed argument–or did I? After all, I have been accused of just that sin. Still, I’d like to believe that, on the contrary, I intended to emancipate the public from a prematurely naturalized objectified fact. Was I foolishly mistaken? Have things changed so fast?

In which case the danger would no longer be coming from an excessive confidence in ideological arguments posturing as matters of fact–as we have learned to combat so efficiently in the past–but from an excessive distrust of good matters of fact disguised as bad ideological biases! While we spent years trying to detect the real prejudices hidden behind the appearance of objective statements, do we have now to reveal the real objective and incontrovertible facts hidden behind the illusion of prejudices? And yet entire Ph.D programs are still running to make sure that good American kids are learning the hard way that facts are made up, that there is no such thing as natural, unmediated, unbiased access to truth, that we are always the prisoner of language, that we always speak from one standpoint, and so on, while dangerous extremists are using the very same argument of social construction to destroy hard-won evidence that could save our lives. Was I wrong to participate in the invention of this field known as science studies? Is it enough to say that we did not really mean what we meant? Why does it burn my tongue to say that global warming is a fact whether you like it or not? Why can’t I simply say that the argument is closed for good?

Water Hyacinth Re-invades Lake Victoria

From NASA’s Earth Observatory, images showing the speed with which the rapidly spreading S American water hyacinth has reinvaded Lake Victoria. Water hyacinth was introduced to Africa over a century ago, but it did not become a problem in Lake Victoria until the early 1990s. It covered substantial areas of the coastline, particularly in Uganda, blocking waterways, disrupting hydropower, and decreasing the profitability of fishing. Hyacinth also provided refugia for some species from the introduced Nile Perch. It largely disappeared from the Lake in the late 90s, perhaps, but not clearly, due to the introduction of a weevil used for biological control. It experienced a resurgence in the early 2000s. Now following a wet year, which increased nutrient runoff into the lake, water hyancinth has returned.

water hyacinth

These images show the Winam Gulf, in the northeast corner of Lake Victoria in Kenya. The gulf was the most severely affected region during the first hyacinth outbreak in 1998, with as much as 17,231 hectares (67 square miles) of the plant growing on its surface. By 2000, the area covered by water hyacinth was down to about 500 hectares (2 square miles), and in December 2005, when the right image was taken, the lake appeared to be clear. In November and December 2006, however, unusually heavy rains flooded the rivers that feed into the Winam Gulf. The rain and floods raised water levels on the lake and swept agricultural run-off and nutrient-rich sediment into the water. As a result, the Winam Gulf was brown when the Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Terra satellite took the top left photo-like image on December 18, 2006. Vegetation around the lake was dramatically greener due to the rains.

The influx of fertilizer and sediments not only turned the water brown, but it also fed a fresh outbreak of water hyacinth. Bright green plants cover much of the Winam Gulf in the top left image. Though other plants such as algae may be contributing, water hyacinth is almost certainly one component of the soupy mass. As the photo shows, water hyacinth was growing along the shoreline, particularly in Kisumu Bay and Nyakach Bay. A comparison between December 2005 and December 2006 shows that Kisumu Bay was entirely covered by water hyacinth in 2006, and the shoreline of Nyakach Bay also appeared to change shape as the plant grew out from the shore.

The photo was taken on December 17, 2006, looking north across Kisumu Bay. The photographer stands on the shoreline and should be looking out over water, but only a field of green water hyacinth can be seen. The photo illustrates the problems the plant poses to the lake. The mat of vegetation is so thick that fishermen cannot launch their boats or bring fish to market on the shore. Sunlight does not filter through the plants, so native plants in the lake don’t get the light they need. The die-off of native plants affects fish and other aquatic animals. Water hyacinth clogs irrigation canals and pipes used to draw water from the lake for cities and villages on its shore. The plants impede water flow, creating abundant habitat for disease-carrying insects like mosquitoes. Water hyacinth can also sap oxygen from the water until it creates a ”dead zone” where plants and animals can no longer survive. Typically, only aggressive measures can control the fast-growing plant.

Buzz Holling’s Reflections

C. S. “Buzz” Holling one of the founders of the Resilience Alliance has agreed to serialize his reflections on his research as a special series of posts on Resilience Science.

Though his publications Buzz Holling has contributed a powerful set of new ideas to ecology. These ranged from the mathematical formulation of predation, to the ideas of resilience, adaptive management, and panarchy. His work has had a growing impact in ecology and related fields such as ecological economics, geography, and global change research.

Holling Cites