Nga Chris Grinter, në 24 shkurt, 2010
E di këtë flutur? Është në rregull, askush nuk e bën. Ajo është në gjini Apodemia (Riodinidae), por Taksonomia e këtij grupi është një fatkeqësi… dhe nuk e merrni edhe mua filloi në subspecies. Ky ekzemplar është fotografuar në shtator, që do të thotë se është më shumë gjasa të jetë Apodemia mormo (Nevoja për të marrë një) based on flight time. Një. Nevoja për të marrë një is a fall flyer and Një. virgulti is a spring flyer. While some forms seem distinctive, there is massive morphological overlap and they are usually identical and sympatric – actually down to living on the same plants. But according to lab experiments it is impossible to get the pupae to break diapause so they remain reproductively isolated. So are they different? While molecular work is being conducted the verdict is out, but it does seem like these two species may be retained in the end. Dhe sigurisht, each mountain range has it’s own subspecies. Who knows, I sure don’t. I’m glad I don’t work on butterflies.
Species concepts are a fuzzy line and it’s never clear exactly where to make the cut. When asked what a species is most people default to the Mayr concept of Biological Species (BSC), where reproductive isolation = new. This is all well and good but we have to keep in mind that this is not the ONLY species concept. Ka qindra, and not one is perfect. Groups like Grammia (Noctuidae: Arctiinae) exhibit high levels of hybridization, which does not adhere well to the BSC. I like to apply as many criteria as possible to delimit a species and it seems like the line is all too commonly thin within insects. I like to see a distinguishing morphological trait, if not in wing color or pattern, at the least in the genitalia or antennae. This is not always the case however and you have to look at the biology and/or DNA. I have looked at two insects that are for all intents and purposes identical. But the biology is radically different and a large % difference (mbi 8% – po, arbitrary) in their DNA makes it unquestionable that they are separate.
And if species weren’t contentious enough subspecies stir the pot even more. I’m skeptical about the entire concept, but there are cases in which it seems plausible and necessary. A subspecies is a more formal definition of a geographical “formë” and usually exhibits a blend zone into another subspecies. For instance if you look at the 27 different populations of Plebejus icarioides there are large differences between northern and southern populations, but very subtile difference along the gradient. It is that persistent gradient that creates one dynamic species instead of 27 separate species – at least according to current research. Moths have been lucky and have thus far avoided the plague of over-subspeciation, butterflies not so much. There may even be instances where greedy collectors have named new subspecies of Parnassius for profit (new rare butterfly subspecies sell for big bucks).
The truth is that species concepts are artificial, poorly understood and dynamic at best; at worst it approaches a soft science with no real possibility of proof. Yet species are real and theories will continue to adapt while we sit here and scratch our heads.
Nga Chris Grinter, më 23 shkurt, 2010 
One of the perks of being an entomologist is traveling and collecting. I put a few thousand miles on the car every summer and these are two of the best places in Arizona to collect. The top image is from the Baboquivari Mountains (Baboquivari Peak in the middle), Brown Canyon Research Station. The bottom image is of Pena Blanca Canyon, a famous collecting hotspot. This canyon is just 5 miles from Mexico and has a few safety concerns because of our current immigration policy. One morning, while sorting moths from the previous nights catch, a colleague and I had a group of roughly 30 illegals walk right through our camp. They were well dressed and clean, waved, and must have just been dropped off at the fence. Thankfully the majority of illegals are hard-working and honest people trying to earn a better life. It’s the coyotes and smugglers that are scarier – I have heard tales of Mexican police escorting drug caravans into the US with heavy artillery. And just last year a border patrol agent was stabbed to death by a coyote in this vicinity.
Fatmirësisht, a bunch of strange guys standing around strange lights at nights grants us a wide berth.
(Are these images small enough to load quickly?)
Nga Chris Grinter, më 23 shkurt, 2010 Despite being pretty disinterested in butterflies, they are pretty to look at. Here is a really great video by a guy I know down in Southern CA. His time-lapse videos of lepidoptera life cycles are pretty impressive, and this one in particular is beautiful. If you cut to about 3:00 në, you will see dozens of Great Purple Hairstreaks (Atlides halesus) emerging from their chrysalises, the colors are stunning. This butterfly is native to the SW and Mexico, and I have to admit I love finding it in the field.
[youtube = http://www.youtube.com/watch?v=KyWJlpIchkE]
Nga Chris Grinter, më 23 shkurt, 2010 The brief comment about Linus Pauling and Vitamin C below made me remember this video first posted a while ago by Pharyngula. This is Kary Mullis, the inventor of PCR, and a Nobel Prize winner. His invention basically made DNA analysis possible. But like Pauling, he is also completely and totally nuts. If you have the time to listen to him ramble, give it a shot. Por shkurt, he discusses astrology, denies global warming and how AIDS is not caused by HIV. I wonder what the stats are for genius scientists that slide off their rocker?
[vimeo 9167379]
Nga Chris Grinter, on February 22nd, 2010 
This is an old image of mine, so it’s not perfect. If you can tell me this butterfly to species you get a high-five. If you know the subspecies, I’ll send you a new pack of #3 stainless steel pins! Only hint: It’s from the western USA.
Nga Chris Grinter, on February 22nd, 2010 Today I found kjo article in NY times health – touting the benefits of acupuncture used for depression relief in pregnant women. I have a few problems with the journalist, Shirley S. Wang, failing to remain skeptical in her piece. But this comes as no surprise, so I won’t bother to point out obvious flaws in the media.
I will point out the flaws in the study. Please find the original full text, këtu. So after reading this paper I have come to a few conclusions.
1) Very small sample size of 150 patients, only 141 treated.
2) The study is blinded ONLY for the depression scoring, not administration of acupuncture. In fact, their release form states “Participants in one of these two groups will receive acupuncture that focuses on depression symptoms and the other treatment will not.” Makes sense, getting a needle shoved in your skin is easy to notice. Kështu, these “randomized and blinded” participants knew what was coming and assumed that any poking was supposed to help their depression. Më tepër, kjo (much better) study has shown that simulated acupuncture with toothpicks works just the same. Careful, this is compelling evidence against the validity of acupuncture – not evidence for the usefulness of stimulated “pressure points”. It is a placebo effect.
3) Study assumes validity of “depression specific” dhe “non-specific” acupuncture. Meaning one method of pin sticking somehow cures depression over another. What is this based on? Oh wait, they say exactly the exhaustive scientific evidence right here: “patterns of disharmony according to the principles of traditional Chinese medicine”. I’m sorry, ju lutem, give me modern medicine over 2,000 year old mythical beliefs. How was the average quality of life and life expectancy for an ancient chinese person? Pretty damn horrible, and I’m sure the average life expectancy did not exceed 35 vjet.
4) Basing depression scores on one administration of the DSM-IV Hamilton Rating Scale. Not being a psychiatrist I can’t speak to the efficacy of these tests. Por, I will go out on a limb and assume that a stronger baseline for depression should be established before comparing results. The test may be accurate, but why not administer it more than once to reduce noise.
5) Selection of massage as a second control. This is a bad attempt at token skepticism, they even state right off the bat “Massage was conceptualized as a control treatment because, although it improves mood immediately after a session, there is insufficient evidence to support its efficacy as a treatment for depression.” When I design a study I like to look at all known factors that I believe will disprove my hypothesis. Choosing something that you already believe will fail only shows their hand of gross bias.
6) Failure to control for socioeconomic factors. 67% of the participants were white, the majority of which were well-educated. They even go as far as to state in the discussion “Therefore, results might not generalize to specific minority groups that were underrepresented in our sample”. Is it just me, or does this statement negate the entirety of their research? They are freely admitting that acupuncture might not work as well in other minority groups. Why could this be? The only logical and scientific answer is that a placebo effect differs across socioeconomic boundaries. If, after all, acupuncture was a legitimate medical science, there would be an insignificant difference seen across physiologically identical organisms.
This study is appallingly bad science. These researchers are beginning with the premise that acupuncture works, and searching for data to support their claims. This is exactly opposite of how to conduct real science. Dhe, our health reporter at the NY Times didn’t even bat an eye. Fail for you Mrs. Wang, and fail to the NY Times.
Nga Chris Grinter, në 21 shkurt, 2010 Unë e dua Ming Tsai dhe perandorinë e tij gatim sa më shumë të ardhshëm 3-am TV shikues. Në të vërtetë, his recipes are fantastic and you should make them yourself. Por unë kam vënë re një prirje të çuditshme për të që të thonë (parafrazuar) “ju duhet të përdorni organike, është shumë më mirë për ju”. Kjo lë të më pak në mëdyshje. What exactly does he mean? Ming is well-educated and this is not anything he should be solely responsible for, but he echoes an all too common misconception that organic is actually better. By better I am interpreting this as healthier, which seems to be a logical gap to bridge. Kështu, let’s look at the data.
A recent and comprehensive review published in the American Journal of Clinical Nutrition has largely convinced me of what I was always skeptical of; that organic foods can not actually be healthier for you. In their breakdown they cited 55 studies and came to the conclusion that “there is no evidence of a difference in nutrient quality between organically and conventionally produced foodstuffs”.
So what is the harm? My problem with all of this is that it is based on the naturalistic fallacy, that “natural” ose “organic” somehow means that the product is safer or healthier. How many times do you see the term “natural” in the store and never give it second thought? If natural things really were safer then traditional Ayurvedic medicines would not be horribly toxic. Afterall, arsenic, lead and mercury are NATURAL – but they are also some of the most toxic compounds known to man. In the end it is 100% marketing.
Taken from another angle Ming Tsai may not be all that incorrect afterall. I do not have all the data in front of me regarding pesticide contamination of foodstuffs, but it is logical to assume the less contaminated the better. Obviously pesticides can be a bad thing, there are mountains of literature to support the damage they can cause. But the jury seems out on exactly how bad, if at all, these minute residues on our foods are. Conventionally grown foods have regulated levels of residues, but even organics are not free of pesticide contamination. So I look at it differently. Our environment benefits from having safer food. Less chemicals are dumped into our waterways, farmers have to battle less with incredibly powerful toxins, dhe blinky the fish fights to see another day. We should all strive to live sustainably and organic farming does provide us with an edge.
So once again, what is the harm? People who buy organic quite possibly do so based on genuine environmental stewardship. I would also argue that a very high percentage of these people also believe these foods are healthier (anyone have survey data to support this claim?). So in this instance the result is a net positive. Por, being right for the wrong reasons should never be acceptable. This strikes at the peak of a larger problem that is driven by marketing and zero science. Case in point – Vitamin C as a cold remedy. A study in PLOS medicine has shown there is no indication for efficacy of VitC against the common cold. Shko figura, a once believed to be true staple has begun to be picked apart by science and data. Let’s be careful on what bandwagon we jump and why.
Nga Chris Grinter, në 21 shkurt, 2010 [youtube = http://www.youtube.com/watch?v=zSgiXGELjbc]
I really gëzojnë këtë Sagan autotuned, bën mua me isha këtë shprehës. Shikojnë me shume video këtu në Simfonike e Shkencës.
Nga Chris Grinter, në 21 shkurt, 2010  Kështu, si të filloj një blog të ri? Pyetje e veshtire, por ndoshta kjo është një kohë e mirë për të treguar një specie të re argëtuese. Kjo molë u mblodh vitin e kaluar jashtë Santa Barbara, ATA. Hapësira masive e krahëve, në 15 mm, e bën atë mjaft të madh për një molë Gelechiid. Gjinia, Gnorimoschema (shqiptohet nor-a-mosh-ma), duket se është shumë më e pasur me specie sesa dihet aktualisht, kështu që kjo krijesë nuk është befasi. Më jep gjithashtu një shans të mburrem për përfitimet e studimit të një grupi kaq të larmishëm kafshësh. Nëse ndodh që të jeni mjaftueshëm me fat që të jeni një mik i imi, me siguri do të merrni speciet tuaja në një moment.
Nga ana tjetër, edhe kjo nxjerr në pah problemin – duke mos ditur pothuajse asgjë për grupin më të larmishëm të kafshëve në planetin tonë. Çfarë ndodh kur një kulture e re hahet nga një i vockël, i papërshkrueshëm, molë? Telefononi një nga dhjetëra njerëz në botë që mund të jenë në gjendje t'ju ndihmojnë. Ndoshta ata e dinë se çfarë është, por me gjasë nuk dihet asgjë për biologjinë e tij. Kjo është ajo që ndodhi në Dakota e Jugut kohët e fundit kur të lashtat e biokarburanteve po haheshin nga një molë e parë për herë të fundit në 1910. Çfarë arsye e përsosur për më shumë financim! Ka shumë të ngjarë se mola ime e re e mësipërme nuk do të shpërthejë kurrë në një dëmtues. Por të kesh njohuri bazë për speciet që ndajnë këtë tokë me ne është një hap në drejtimin e duhur.
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