Showing posts with label butterflies. Show all posts
Showing posts with label butterflies. Show all posts

Wednesday, November 14, 2012

Gorblimey! A Butterfly House!


The word gorblimey (also gor-blimey or gor blimey) originated in Britain in the late 19th century as a vulgar play on the oath “God blind me.”  According to the Oxford Dictionary of English, when used as an exclamation, it’s “an expression of surprise or indignation.”  As an adjective, it means “vulgarly lower-class.”  Finally, the dictionary notes that, early in the 20th century, it characterized “unusual clothing.”  Eric Partridge’s A Dictionary of Slang and Unconventional English (8th edition, 2002) offers a somewhat tangled set of usages for this Cockney expression that has a recurrent focus on clothing (hats in particular) defying regulation (military), convention, or perhaps good taste.

I first came upon the word only recently, in a description of the ways in which, since the 19th century, the shells (or tests) of diatoms have been arranged and mounted on microscope slides.  Diatoms, photosynthetic single-celled plankton, generate a breathtaking array of very small, geometrically shaped shells.  Brian Bracegirdle, in his marvelous guide to the (primarily British) world of mounted microscope slides (Microscopical Mounts and Mounters (1998)), notes that “prepared [diatom] tests . . . have been an object of fascination to English microscopists for well over a century.”  (p. 31)  Mounted diatoms have been put to practical and scientific uses – at times in the 19th century, they were employed to test the resolution of the objective lenses of microscopes.  Back then, as well as now, slides with mounted diatoms aided in the identification of diatom species or exploration of diatom diversity.  “Or they can be arranged,” Bracegirdle writes, “as pretty patterns/pictures for either reflected or transmitted illumination, to produce a gor-blimey effect.”  (p. 31)

I’m not sure how Bracegirdle is using gor-blimey in this instance.  Is the effect produced by these arrangements of diatoms vulgar?  Or, is this an effect sparking amazement?  Regardless, when I use gorblimey in this post, I intend it as an exclamation of surprise, the kind of oath I blurt out when I come upon something startling or unexpected, perhaps good (say, a particularly sweet sunset) or perhaps not so good (another day without electricity).

Fanciful arrangements of natural history specimens distress some folks.  In my previous post, I highlighted a microscope slide with an amazing bit of artwork made of fossil foraminifera shells, mounted by Arthur Earland in 1912 as a Christmas gift for Edward Heron-Allen.  In the first decades of the 20th century, Earland and Heron-Allen were among the preeminent experts on foraminifera (single-celled protists).

Michael Hesemann, who runs the highly recommended foraminifera.eu project website, offered a thoughtful comment on my post in which he criticizes the making of “nice images and arrangements” out of specimens, suggesting it was a 19th century sort of impulse.  He posits that we should “respect nature as it is,” and recognize the importance of these specimens and the evolutionary story they convey which “goes far beyond mere man-made harmony” and surface beauty.

Perhaps I was too dismissive of this point in the response I posted.  Despite how intricate and, yes, beautiful, some artful arrangements of mounted micro specimens can be, I’m more and more inclined to believe they do trivialize the objects of which they are made.  The test is, do they engage the viewer into going beyond the shine and flash, and discovering the science behind them?  I suspect mostly the responses don’t get beyond, “Gorblimey!”

It’s a challenging question to ask of displays, exhibits, or activities involving natural history.  Do they respect or trivialize the objects?  Where’s the education, where's the science?

In recent months, I had my first experiences with those walk-through exhibits of living butterflies and I loved them.  The Atlantis Long Island Aquarium & Exhibition Center in Riverhead, New York, has a butterfly house that captivated us for a couple of hours one weekday afternoon in September.  Given the few other visitors that day, we felt the butterflies were there for us alone.  Armed with pens and the butterfly house’s brochure listing 14 North American species and 18 exotic species (mostly from Asia), we went on a butterfly hunt throughout the exhibit, checking off species as they fluttered by or, as our search images developed, they slowly appeared in the foliage.  Magical.


The following identification of the butterflies shown in my montage above relies mostly on the Atlantis brochure, supplemented by some exploring of the web:

upper left corner – several examples of Paper Kite butterflies (Idea leuconoe)
upper right corner – a Scarlet Mormon butterfly (Papilion rumanzovia)
center middle – a Glasswinged butterfly (perhaps Greta oto, but I’m not sure)
center, a bit lower – a Common Blue Morpho butterfly (Morpho peleides), appears smaller than is
middle left – several examples of Great Egg Fly butterflies (Hypolimnas bolina)
middle right – a Tawny Owl butterfly (Caligo memnon) showing the top of its wings
bottom left – a Polymnia Tigerwing butterfly (Mechanitis polymnia)
bottom right – more Tawny Owl butterflies (Caligo memnon) with folded wings

When one of the exhibit’s curators wandered through and willingly became our guide for much of the afternoon, some of what’s known as the butterfly house industry came into view.  That the array of butterflies featured in the exhibit’s brochure did not fully match the species seen on this day reflects the fact that the stock available from his suppliers is dependent upon myriad factors, including the time of year.  He described a visit to check up on one source of his stock, a butterfly farm in Florida, and mentioned restrictions that limit him to the role of exhibitor, not breeder (for instance, he cannot include flora essential for butterfly propagation in his exhibit).

In a carefully crafted overview and critique of the butterfly house industry, ecologist Michael Boppré and etymologist R.I. Vane-Wright have identified its key components – a far reaching constellation of breeders, suppliers, exhibitors (exhibits), and visitors.  (The Butterfly House Industry:  Conservation Risks and Education Opportunities, Conservation and Society, Volume 10, Number 3, 2012.)  The authors sound an alarm about key aspects of the industry while simultaneously offering a roadmap to an environmentally sustainable and scientifically supportable future.  The discussion below draws from their article.

Though elements of this industry began centuries ago with the trading and collecting of insects, it’s really two recent technological advancements that have made all the difference – instantaneous communication via cell phones and the internet, and the creation of a rapid worldwide delivery system.  These have made it possible to stock and restock butterfly houses within the brief lifespan of butterflies.  It’s a growth industry – butterfly houses and large scale butterfly gardens exist in over 50 countries, the estimated money changing hands with the purchase of butterfly pupae is between $10 and $20 million annually, and more than 40 million people each year visit these houses and gardens.

But it’s a largely unregulated industry that, unless it takes appropriate steps, poses serious risks to the environment and to butterflies.  The comforting vision of myriad mom and pop operations in developing countries generating needed income by securing butterfly pupae while protecting the environment doesn’t hold up, according to Boppré and Vane-Wright.  Actually, small scale breeders who gather larvae and pupae in the wild, or who capture females butterflies in the wild and ship off the generated pupae (practices known collectively as rearing) threaten the continued existence of local butterfly populations, particularly uncommon or rare species.  The sustainable breeding model Boppré and Vane-Wright advocate is large scale, of a size sufficient to cater to the worldwide market and afford to engage in practices that conserve and support local butterfly populations and environment.  This model involves reliance on locally obtained specimens, the periodic release of adults back into the wild, and the periodic refreshing of the breeding stock with individuals from the wild.  These enterprises (breeders and suppliers), they argue, should limit themselves to “industry-suitable, common species native to their own area of operation” and eschew shipment of species to other, potentially compatible regions (e.g., sending tropical butterflies to other tropical regions). (p. 294)

The deliberate or accidental release of butterfly species into the wild by any participants in the industry may spell disaster for biodiversity and for the environment.  “The biological basis of the threat is due to the fact that all butterflies, like the vast majority of organisms, have more or less restricted natural ranges caused by the interaction of history (phylogenesis) and ecology.” (p. 290)  If alien species find a hospitable niche in the new environment, they may disrupt local populations.  I would visit a pox upon that element in the butterfly trade that enables the mass release of butterflies at special ceremonies such as weddings (talk about trivializing!).

Boppré and Vane-Wright posit that, because butterfly species abound with subspecies the possibility that breeding operations will spur genetic mixing is high.  The danger is that breeders will bring together genetically different subspecies (made easier by the fact that genetic diversity is not necessarily manifested in physical differences) that otherwise would remain physically separated in the wild.  If they crossbreed successfully, all bets are off.  “With respect to hybridization, rearing closely related butterflies in an artificial, closed environment represents an uncontrolled experiment.”  (p. 293)

Unless carefully controlled, the commerce in butterfly pupae can also move parasites and diseases into new areas and into populations with no natural defenses with unknown consequences.

It’s not all doom and gloom.  Despite the ecological dangers inherent in the butterfly house industry, it represents an enormous opportunity to foster greater environmental awareness and conservation activism in the millions of visitors who walk through these exhibits each year.  This is the opportunity to move the butterfly house experience from entertainment that trivializes or disrespects these insects to an experience that informs and energizes the visitors for the benefit of the insect.

Boppré and Vane-Wright assert, “For butterfly houses to justify the environmental risks they present, we believe they must engage in effective environmental education . . . .”  (p. 296)  They should take it as their mission to educate visitors about natural systems and about the threats to  butterflies’ habitat.  They should feature outdoor butterfly gardens to support local butterfly populations and to encourage the planting of these gardens.

Frankly, the educational challenge is enormous.  “Although there are rare examples of good educational practice, the educational offerings presented by most butterfly houses are insufficient, misleading, incorrect, or even lacking altogether . . . .”  (p. 296)  In addition to the butterfly house in Riverhead, New York, I also recently visited the Butterfly Pavilion at the Smithsonian’s National Museum of Natural History.  Its educational trappings are more apparent, but, for the life of me, I cannot remember much of what either exhibit may have intended that I learn about the life history of butterflies or the natural systems of which they are a part.  And therein lies the real challenge.

Assume, for the moment, that a butterfly house fully embraces this mission and features clear, accessible displays or activities that explore the ecological role played by butterflies, the threats to their survival, the nature of the enterprises supplying the butterflies on display, the dangers inherent in the butterfly house industry and steps taken to address them, and the positive roles that visitors might take to support local and foreign butterfly species and conservation in general – would any of that sink in?  Would there be room or time for the butterflies?  Perhaps education would be better served by targeting one or two critical messages.  I was struck by the fact that the Natural History Museum's butterfly house did not, as a matter of course, provide me with any handouts addressing even one of these concerns.  Something as simple as “here’s what you might do to help butterflies in your local community” would be a start.  And that's where the Atlantis butterfly house in Riverhead has taken its first step - its guide to the species on exhibit provides a brief "Butterfly Gardening Hints & Tips."  Though, to its credit, the Natural History Museum does have an outdoor Butterfly Habitat Garden along one side of the building.

The narrowing and targeting of the messages and the fashioning of the educational efforts may be less of a hurdle than simply capturing visitors’ attention.  The very connection that draws people to these exhibits and so moves them as they witness the free flying butterflies may preclude most from attending to any of these educational messages while in the butterfly house.  Besides some take-away material to be read later, away from the butterflies, I don’t quite know how to get over this barrier.  I know from personal experience that, once in the butterfly house, we are spellbound by, and only have eyes for, the beauty around us.

“Gorblimey!”

Thursday, February 3, 2011

Beginnings of a Taxonomic Adventure -- Words, Rules, and Butterflies

I have hunted butterflies in various climes and disguises:  as a pretty boy in knickerbockers and sailor cap; as a lanky cosmopolitan expatriate in flannel bags and beret; as a fat hatless old man in shorts.
                                                        ~ Vladimir Nabokov, Speak, Memory

I, in contrast, have spent a couple of weeks trying to untangle the complex taxonomic history of a small fish fossil (won in a silent auction).  Its label gives provenance and genus, and it’s that name that has led to immersion in a growing generic swamp of papers, articles, and books.  I’m not sure even yet that I’ve successfully wrenched the taxonomic history from the textual muck.

That history will be the subject of a later posting; this one is context setting, offering some random and inchoate thoughts on the science, art, and idiosyncrasies of taxonomy.  This posting is also prompted by news of the validation of an hypothesis published in 1945 by Vladimir Nabokov about the colonization of the North and South America by Polyommatus butterflies.  Taxonomy and Nabokov are conjoined.

For most of us, the first encounter with taxonomy, “the science of classifying,” is a stumble over the scientific binomial (or binominal? see below) name given to a living or once living species – the first name, capitalized, identifying the organism's genus; the second, lower case, its species (this naming protocol was Carl Linnaeus’ brainchild).  There are three detailed international codes for naming and classifying – one each for zoology, botany, and bacteria – anchoring taxonomic decisions and communication about organisms.  To that end, they preclude duplication – under their aegis, no species or genus may have the same name as another, and no name may refer to more than one species or genus.  And, critical to the enterprise, the principle of priority provides that a valid name that is the first published has priority, while subsequently published names are invalid.  The introduction and enforcement of priority addressed the chaos that reigned in the early years of the use of the Linnaean system when names were changed arbitrarily.

To me, taxonomy can be a beautifully logical process, at times even somewhat quaint and charming.  Still, I know I am but an inexperienced tourist in that “country,” coming to understand (appropriating the opening line from L.P. Hartley’s novel The Go-Between) “they do things differently there.”

Though some of the language used in this country appears deceptively close to mine, I often fail at first to grasp its meaning.  Consider a few examples.  Synonyms, a boon to this writer, are taxonomic poison, violating the rule against duplication – there cannot be different names for the same organism.  Being preoccupied, which I often am, violates taxonomic rules – a name that has already been applied to another organism is preoccupied.  Despite my understanding of the adjective, the trivial name isn’t unimportant in taxonomy, it’s the second, lower case name in a binomial name, the one that identifies the species.  And so on, including generic in the opening paragraph of this posting.

Oh, wait, there’s a small but different kind of linguistic trap for the tourist, one I cited earlier.  Does the Linnaean system rest on binomial or binominal names?  The International Code of Zoological Nomenclature says binominal (Article 5.  Principle of Binominal Nomenclature),  Donald Prothero and others say binomial.  Michael Allaby in the Dictionary of Zoology (2009) accepts either but appears to give greater weight to binomial, because it merits the definition and binominal gets only the cross-reference.

This tourist has enjoyed exploring another part of the taxonomy landscape, perhaps because the guidebooks can be particularly caustic in their reviews of this locale.  The priority principle, that lynchpin of the nomenclature code, has come in for some pointed and witty criticism from within scientific ranks.  Paleontologist Stephen Jay Gould fashioned a wonderful story of what happened when a new species was named under less than ideal conditions:

[W]hen Ignatz Doofus publishes a new name with a crummy drawing and a few lines of telegraphic and muddled description in the Proceedings of the Philomathematical Society of Pfennighalbpfennig (circulation 533), it passes into well-deserved oblivion.  Unfortunately, under the [code] of strict priority, Herr Doofus’s name, if published first, becomes the official moniker of the species – long as Doofus didn’t break any rule in writing his report.  The competence and usefulness of his work have no bearing on the decision.  The resulting situation is perversely curious.  What other field defines its major activity by the work of the least skilled?  (Bully for Brontosaurus:  Reflections in Natural History, 1991, p. 82)
Gould concluded that the priority principle, on its own, encourages “petty legalists” who scour the arcane literature to garner some little bit of fame as they upset long accepted names.  He summed it up by quoting Charles Michener (“our greatest taxonomist of bees”):
In other sciences the work of incompetents is merely ignored; in taxonomy, because of priority, it is preserved. 
But, with the adoption of the plenary powers rule (initially approved in 1913), the International Commission on Zoological Nomenclature has attempted to compensate for this.  In Gould’s words, these plenary powers provide that 
. . . the first designation shall prevail, unless a later name has been so widely accepted that its suppression in favor of a forgotten predecessor would sow confusion and instability.
(See Article 81 of the International Code of Zoological Nomenclature.)

As I struggled in the taxonomic weeds with my fish fossil, I took a break and read about Nabokov’s posthumous success in the world of Lepidoptera.  Fascinating story and one that reinvigorated me, but, in fact, never took me away from taxonomy.

Nabokov himself defies classification.  Novelist, poet, essayist, translator, or lepidopterist?  As for that last label, in the 1940s, Nabokov worked as a research fellow at Harvard’s Museum of Comparative Zoology, where he was the Museum’s “de facto curator of Lepidoptera and one of the authorities on South and especially North American polyommatine butterflies, the ‘Blues.’” (Brian Boyd, Nabokov, Literature, Lepidoptera, in Nabokov’s Butterflies:  Unpublished and Uncollected Writings, edited by Brian Boyd and Robert Michael Pyle, 2000, p. 9)

Among the research papers Nabokov published in this period on butterflies was Notes on Neotropical Plebejinæ (Lycænidæ, Lepidoptera) (Psyche, March-June 1945) in which he speculated on the manner in which these butterflies came to the New World.
One can assume, I think, that there was a certain point in time when both Americas were entirely devoid of Plebejinæ but were on the very eve of receiving an invasion of them from Asia where they had been already evolved.
They came in waves, he suggested, the first reaching South America before the waves that gave North America some of its generations of “Blues.”  Coming across the Bering Strait made sense to him. 
. . . I find it easier to give a friendly little push to some of the forms and hang my distributional horseshoes on the nail of Nome rather than postulate transoceanic land-bridges in other parts of the world.
 In a paper just published in the Proceedings of the Royal Society B (Phylogeny and palaeoecology of Polyommatus blue butterflies show Beringia was a climate-regulated gateway to the New World, January 26, 2011), Naomi E. Pierce of the Museum of Comparative Zoology and her co-authors have built a case supporting Nabokov’s hypothesis in detail, using DNA sequencing, among other tools.  They concluded,
Phylogenetic results support Vladimir Nabokov’s hypothesis that the New World Polyommatus are the product of at least five colonization events through Beringia that occurred successively from ca 11 Ma [million years ago] until 1 Ma.
Pretty neat.

Yet that wasn’t really what distracted me from my own taxonomic quest.  What really hooked me was the stanza from a Nabokov poem that Carl Zimmer quoted in his article on this new research.  (Nabokov Theory on Butterfly Evolution Vindicated, The New York Times, January 25, 2011.)

Here are the last three stanzas of the poem, originally published May 15, 1943, in the New Yorker as On Discovering a Butterfly:

I found it and I named it, being versed
in taxonomic Latin; thus became
godfather to an insect and its first
describer – and I want no other fame.

Wide open on its pin (though fast asleep),
safe from creeping relatives and rust,
in the secluded stronghold where we keep
type specimens it will transcend its dust.

Dark pictures, thrones, the stones that pilgrims kiss,
poems that take a thousand years to die
but ape the immortality of this
red label on a little butterfly.

“I found it and I named it . . . .” – a paean to taxonomy as well as the virtues of museum collections – “safe from creeping relatives and rust, in the secluded stronghold . . . .”  A bit more taxonomy resides in the poem.  In the second stanza quoted above, “type specimen” is that specimen upon which a species’ original description is based.  A red label (see last stanza) is how many museum denote the type specimen.  Fascinating that, in the poem at least, Nabokov would see this naming, not the creative arts, as the avenue to immortality.

Nabokov collected his first butterfly in 1906 at the age of 7.  From the beginning, he was fixated on finding and naming a new species.  As a young boy, he thought he had, submitting a description to The Entomologist, only to be informed, gently, that the particular creature had a long standing description.  Nabokov noted, in Speak, Memory, that he later exacted revenge on the man who’d named his moth “by giving his own name to a blind man in a novel.”

In 1938, a couple of years before immigrating to the U.S., Nabokov caught two male specimens of a butterfly in the Alps of southern France.  Shrugging off initial suspicions that the butterfly was a hybrid, he subsequently named a new species Lysandra cormion in a paper published in the Journal of the New York Entomological Society (Lysandra Cormion:  A New European Butterfly, September, 1941).  It is the discovery of  this butterfly that is described in the poem.  (See Between Climb and Cloud:  Nabokov Among the Lepidopterists, in Nabokov’s Butterflies.)  Unfortunately, Nabokov’s first impression was right, Lysandra cormion was a hybrid, not a valid species at all.

Pictured below are the species that produced the Nabokov’s hybrid – on the left are male Chalkhill Blues (Polyommatus coridon), on the right is a female Meleager’s Blue (Polyommatus daphnis).

 















In the words of Dieter Zimmer who wrote the fascinating A Guide to Nabokov’s Butterflies and Moths 2001 (2003, excerpt), “Hence, there is no cormion.”

But, not to worry, Nabokov successfully named several butterflies and moths, such as the subspecies Cyllopsis pertepida dorothea Nabokov 1942, and was honored in the names of others, such as Hesperia nabokovi, Madeleinea vokoban (trivial name is Nabokov spelled backwards), and Madeleinea lolita.


[Later edit:  In these last several paragraphs, I have used the scientific names for these butterflies as provided in Zimmer's guide.]



Note on Sources

I’ve drawn here on several sources regarding taxonomy, including Prothero, Bringing Fossils to Life:  An Introduction to Paleobiology (1998); Moore, Lalicker, Fischer, Invertebrate Fossils (1952); Donald J. Borror, Dictionary of Word Roots and Combining Forms (1960); The International Code of Zoological Nomenclature (1999).)

The pictures of the butterflies are from the Wikimedia Commons.  The Polyommatus daphnis photograph is credited to Ettore Ballocchi; that of the Polyommatus coridon is credited to Entomart.  [Later edit:  The identification of these butterflies given with these pictures appears to be correct but appearances may be deceiving.]
 
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