Posts

Pollen supplements and pollen traps.

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Next time you buy or think of buying pollen for your "health" this is the true cost to the bees of pollen production. Pollen is required by honey bees principally as a protein source to feed their larvae and maintain the colony population. As most people will be aware honey bees collect the pollen from flowers and transport it back to the hive using special hairy receptacles on their hind legs called corbiculae. It's an extremely energy intensive activity and efficiency is paramount in making sure that other colony activities aren’t diminished.    Pollen trapping is dependent on the use of a screen or perforated metal grid of about 5-mesh per inch through which the pollen-collecting field bees are forced to enter the colony and this grid forcibly removes the pollen from their legs. This grid is used with a pellet collection container that is covered by 7- or 8-mesh screen to prevent bee entry. This basic principle is common to all pollen traps. Click on ...

Not so much a secret as just not talked about.

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Some years ago I was out with a couple of friends doing a bit of birding and generally poking about in the countryside as one does when we saw one of those fields that had recently been sprayed with Glyphosate and had turned that lovely characteristic rusty orange colour which triggered yet another conversation about the use of toxic substances in agriculture. Click on photo to enlarge. One of the people I was with works in the agricultural sector in the UK and can be a bit of a wind up merchant and I’m never sure whether he is being serious or not. Anyway he does understand the sector as an insider which is always useful, especially as trying to get a straight honest answer from farmers where I live is a total waste of time. Somehow or another during the course of this conversation he mentioned that wheat is sprayed with glyphosate, (Roundup),  in the UK as a pre-harvest crop desiccation, that is to kill off the crop to enable uniform and rapid drying just before h...

Asian Hornets in a Bee hive

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Like most tales there is a history of events and like most tales that involve me it contains a somewhat casual randomness of action that is characteristic of my approach to life. In the spring of last year I collected some bees in a ruchette, (small hive box), and returned home with them around dusk and spotting an empty African Top Bar Hive with a flat lid I thought that will do and put them on top of it. The colony grew as most of them do and as this was now their orientated spot I transferred them into a full hive in the same position. Click on images to enlarge. This spring I added a honey super along with all the other hives that required them and left them to it just keeping an eye on things in case anything went seriously wrong and also when and if supers need adding or changing. Then about four weeks ago when I was by that particular hive I saw an Asian Hornet fly into the empty Top Bar Hive and not come back out. Ooooop’s thought I, better keep an eye on that ...

An Aesculapian snake fell in the river today.

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Having injured my back which has put a temporary halt to all strenuous activity and as it’s been 31°C this afternoon I thought I’d have a wander by the River Charente just to the east of Civray where I could mooch about in the shade of the trees and see what, if anything, turned up or just being lazy in other words, something I'm quite experienced in. The river Charente has had Asian Hornets almost since they arrived in France as they appeared to follow the river and the tall poplar tree plantations that board the river have provided ideal places for them to make their nests. With this in mind it was no surprise to see some flying around by the riverside but my interest was taken by the fact that they were taking nectar from Water Figwort and stopped to take a few photos, or rather try to as they wouldn't stay still.   Click on photos to enlarge. It’s worth mentioning at this point that the River Charente is a very clean river in the upper reach...

Crickets and a few selected photos and other oddments from June / July

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A small selection of bits and pieces from the last few weeks with a few photos some of which I’m quite pleased with especially the Libelloides longicornis which I've waited years for, massive thanks to Samuel Ducept of Vienne Nature for making his hand available.  Click on pictures to enlarge. Libelloides longicornis is found in South west Europe and frequents sunny open habitats where they hunt flies and other small insects by patrolling at a height of about 2 to 3 metres. Now a word in your ear about being a bit careful when translating French names to English for creatures which isn't always that simple especially when the dictionaries have it wrong in some cases. A classic example is the French word Sauterelle which will translate to Grasshopper in most major dictionaries when in fact it should translate to Bush cricket. This may help to avoid confusion. Sauterelle = Bush cricket – long antennae Criquet = Grass hopper – ...

Conops vesicularis and the Asian Hornet, an interesting development?

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The war against the Asian Hornet continues. Conops vesicularis is a small fly from the genus Conops in the family Conopidae and its larvae are endoparasites of bees and wasps. Females inject their eggs into the target species where the larvae develop by eating the host causing its death – all very charming I can see you thinking however it may be a help in controlling the Asian Hornet, an invasive introduced species that targets Honey bees. Three researchers from the 'Institut de recherche sur la biologie de l'insecte (CNRS/Université François Rabelais de Tours) have been conducting research into whether native parasitic species could have an impact on the health of Asian Hornet colonies. They scrutinized the life of 12 colonies of Asian hornets situated near their laboratory in Tours . The colonies were monitored twice a week between June and August 2013 and out of the 12 colonies studied only three developed normally. It was the others that interested the rese...

Montagu’s Harriers nests destroyed in Vienne, France.

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Hen and Montagu’s Harriers have always been victims in many European Countries and France is no exception.  Historically they have been persecuted and killed simply for being birds of prey, something which affected many other raptor species until they were given protection in 1976 but unfortunately this wasn't the end of their troubles. Both Hen and Montagu’s Harrier are birds that like wide open spaces, heath land and plains and it is in these habitats that they make their nests on the ground in low to medium height vegetation and this has lead them into trouble as natural open habitat has disappeared to be replaced increasingly with cereal cultivation. This wasn’t too much of a handicap when crops were more diverse, spring sown and the land was worked with small machines or by hand. The birds adapted to using wheat, barley and pea fields without too many problems, (other than the persecution), then the so called green revolution started, autumn sown barley and wh...