intelligent_beehives:bee_research_brussels
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intelligent_beehives:bee_research_brussels [2014/11/28 09:30] – [environmental treats for honeybees] ami | intelligent_beehives:bee_research_brussels [2017/07/22 14:10] (current) – [bee diseases & natural varroa solutions] ami | ||
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Imidacloprid nu is een agonist van acetylcholine. Dat wil zeggen: een stof die zich in dit geval gedraagt zoals de neurotransmitter. De poort gaat dus open en de bedoeling, in dit geval, is dat ze onomkeerbaar openblijft. De cel is dan uitgeschakeld. Veel wetenschappers gaan ervan uit dat daarvoor minstens een tiental ppb nodig zijn. Eén ppb is gelijk aan het miljardste deel van een gram! In nectar en stuifmeel wordt zelden meer dan 3 à 4 ppb imidacloprid gemeten. Die concentratie zou te laag zijn om de poort gesloten te houden. Dat is de reden, stellen die wetenschappers, | Imidacloprid nu is een agonist van acetylcholine. Dat wil zeggen: een stof die zich in dit geval gedraagt zoals de neurotransmitter. De poort gaat dus open en de bedoeling, in dit geval, is dat ze onomkeerbaar openblijft. De cel is dan uitgeschakeld. Veel wetenschappers gaan ervan uit dat daarvoor minstens een tiental ppb nodig zijn. Eén ppb is gelijk aan het miljardste deel van een gram! In nectar en stuifmeel wordt zelden meer dan 3 à 4 ppb imidacloprid gemeten. Die concentratie zou te laag zijn om de poort gesloten te houden. Dat is de reden, stellen die wetenschappers, | ||
Ik lees dat en tracht het te begrijpen. Dit is beslist geen pleidooi voor neonicotinoïden, | Ik lees dat en tracht het te begrijpen. Dit is beslist geen pleidooi voor neonicotinoïden, | ||
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+ | Neonicotinoids, | ||
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+ | Scientists took a long look at lab procedures and developed glass or silicon chips that could perform the same tasks at the micro level. Micro samples of any liquid were drawn down the tiny channels, many of them thinner than a human hair, and then the samples were run through the electrical fields generated within the chip. The chip could then collect the data and perform the analysis. | ||
+ | This is a game changer. Routine analysis can now be done on the spot with a device that a lay operator can use. Taking the lab out of the loop saves huge amounts of time by doing most of the routine procedures on the spot. Now the lab can be better used to take on more complex problems. | ||
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=====honeybee ecology : relations to the environment===== | =====honeybee ecology : relations to the environment===== | ||
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Marla Spivak: TedTalk [[http:// | Marla Spivak: TedTalk [[http:// | ||
http:// | http:// | ||
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+ | POLLINIS aims to bring together experts from agriculture and beekeeping, lawyers and economists who work out proposals for innovative and pragmatic reform to convince politicians and European leaders to reform the CAP (Common Agricultural Policy) and the dominant intensive agricultural model – to satisfy our food needs today, without jeopardizing the agricultural production and the environment for generations to come. | ||
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=====militarization of the honeybee and robobee experiments===== | =====militarization of the honeybee and robobee experiments===== | ||
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{{: | {{: | ||
[[http:// | [[http:// | ||
+ | may 2, 2013: Cambridge, Mass.-- In the very early hours of the morning, in a Harvard robotics laboratory last summer, an insect took flight. Half the size of a paperclip, weighing less than a tenth of a gram, it leapt a few inches, hovered for a moment on fragile, flapping wings, and then sped along a preset route through the air. | ||
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{{url> | {{url> | ||
http:// | http:// | ||
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[[http:// | [[http:// | ||
zie ook [[http:// | zie ook [[http:// | ||
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01/02/2014: Fom Betty Schiel: This guy did studies on an insekt that is eating up the varoa mite!! I go to a talk of him today. | 01/02/2014: Fom Betty Schiel: This guy did studies on an insekt that is eating up the varoa mite!! I go to a talk of him today. | ||
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[[http:// | [[http:// | ||
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+ | Our lab studies functional and evolutionary aspects of microbial symbiosis in animal guts. Specifically, | ||
+ | Gut microbial communities are important determinants of animal and human health. Their complex composition displays a formidable challenge for studying microbiota-host interactions in the gut. Simple model systems can assist the discovery of general principles of gut microbiology relevant to human health. The honey bee represents such a model, because its gut microbiota is composed of a small number of bacterial species, which are experimentally amenable. | ||
+ | These bacteria have neither been found in the environment nor in related solitary bee species. However, in the gut of adult honey bees, they are consistently present and highly abundant. This suggests that these bacteria have long-standing evolutionary associations with their host and likely play important symbiotic roles. Characterization of the interactions between microbiota and host will contribute to a better understanding of factors influencing bee health. This is of broad interest due to the ecological and economical importance of honey bees and the recently reported bee population declines. | ||
=====bee information: | =====bee information: |
intelligent_beehives/bee_research_brussels.1417167052.txt.gz · Last modified: 2016/01/13 17:46 (external edit)