Sunday, 23 March 2025

Pampas grass: what does the law say in France?

 For several years, measures have been taken to limit the worrying spread of pampas grass. In France, the decree of February 14, 2018 - amended in March 2020 and then in April 2024 - classifies Cortaderia selloana among the plant species whose possession, planting and transport are prohibited throughout the territory. This means that you can no longer keep it at home at the time of writing and that it is imperative that you destroy your stocks.

The risks incurred in the event of non-compliance with these regulations are set out in Articles L415-3 and R415-1 of the Environmental Code. Their content is very clear: it is forbidden to "voluntarily introduce into the natural environment, transport, peddle, use, offer for sale, sell or buy a specimen of an animal or plant species", under penalty of risking a penalty of up to 3 years imprisonment and a fine of €150,000.

How this will be enforced remains to be seen.

Chris




Saturday, 22 March 2025

Have you ever thought about what creatures in France do for winter?

Lots of questions about this subject crop up and this is no more than a rough outline.

Winter climatic conditions in the Northern Hemisphere vary enormously, and even when we take a relatively small land mass such as France, there are huge variations in the different regions. The reasons for this will be obvious to most people, and to put it very simply, they are the geographical differences between North, South, East, West, inland or coastal, mountains, and plains. Of course, it's actually more complicated, but we can all get the general idea.

For hundreds of thousands of years creatures have adapted and specialised to survive these climatic conditions in different ways and hopefully will continue to do so although many may find they struggle as climate chaos gathers pace and our demands on the environment increase.

Migration: Perhaps the most obvious method of dealing with winter is to physically move somewhere else, often long distances, mostly Africa, where it is warmer and where food is readily available in a suitable form. This is an absolute necessity for birds such as Swallows, Swifts, Bee Eaters and others that require a constant large source of flying insects to survive. It's equally as necessary for specialists such as Short Tailed Eagles that consume snakes and lizards. Then there are the other birds that travel from the North and North East of Europe to France where conditions tend to be sufficiently milder and the ground in the West, South and South West is usually snow free allowing them to easily access nutrition.


Above: Swallows are perhaps for most people the classic example of migration.

Hibernation: This is a tricky one and not entirely straightforward. It is basically a period of dormancy or significantly reduced activity that is applied by different species of mammals and insects in a variety of ways. However, relatively few mammals actually go to sleep for the entire winter period if at all. In France the ones that do are Lérot, (Edible dormouse). Loir (Garden dormouse) and Muscardin (Hazel dormouse). which are the three types of dormouse to be found in France. The Marmot, (an introduced species), also has a long hibernation deep in their tunnels in the Pyrenees. In addition, all the French bat species hibernate and that usually, but not always, requires migration to their hibernation sites which can be anything up to 100km or more from where they spend the summer. Hedgehogs normally hibernate for much shorter lengths of time often waking up for periods of activity when the weather is mild and in some cases remain active for the entire winter period if it isn't too cold.

Full hibernation is only suitable for creatures that have adapted to going long periods, (up to 6 months), without eating. For mammals, this means a period of fattening up beforehand and a metabolism that can almost cease for the entire duration. During hibernation essential life functions for mammals slow down to a minimum with a much-reduced heart beat and breathing.


Above: Loir (Edible dormouse) enter a deep hibernation and can take more than 30 minutes to wakeup if disturbed.

Diapause: Insects can spend winter as adults, larvae or some intermediate stage of their development. Diapause is a state of suspended development or growth that occurs in response to unfavourable conditions such as extreme temperatures or limited resources. This will necessitate locating themselves somewhere where they won't freeze such as in buildings, caves, inside dead or living wood, in woodland ground debris and so on. It's different from hibernation but some insects do actually hibernate.


Fox moth caterpillars hibernate in ground debris.


Brumation is similar to Hibernation except that it applies to reptiles and amphibians which are cold-blooded creatures that depend entirely on outside temperatures to provide them with the heat they require. In Brumation both reptiles and amphibians are in a state of deep sleep although they may still need to move to get some water and food to stay alive during this time but it's minimal. When in this state and due to their ability to absorb oxygen in small amounts through their thin skin some of our frogs can happily spend several months underwater in winter or buried in mud.


Chris

Sunday, 16 March 2025

Wolves in France and Europe - protected?

The conflict between humans and wolves knows no end. 

It was always going to be difficult as their numbers recovered and increased to maintain the "strictly protected fauna species" category that they have enjoyed at the European level.  Pressure, mainly from farmers, has resulted in their status being reduced to "special protected fauna species" at the end of 2024 and put into action at the beginning of March 2025. This is a major change and a huge backward step that will make it easier for people to kill them when we need them to help address the proliferation of species that they prey on. 


More LINK HERE


Chris

Thursday, 2 January 2025

Geoffroy's bat, (Myotis emarginatus), a chance encounter in the south Vienne dept (86).

 

Being both a bit of a naturalist and a bee keeper people sometimes contact me to remove honey bee colonies that have been constructed between closed shutters and the window. This is an ideal space and a fairly common occurrence in France with second homes that are left empty during the swarming season and only discovered when the owners return to their house or when someone they know or employ takes a look at the house.

A few years ago, August 2021 to be precise, one of the houses I was called to was in Charroux, (86250) by a neighbour of an empty property that was a keyholder, where the following day I proceeded to dismantle the comb and re house the bees in a ruchette, (small hive). During a pause in proceedings the neighbour invited me for a coffee and we then took a walk though his land chatting about wildlife and conservation in general. During the course of this chatting he mentioned that they had a large number of bats every year in their outbuildings which immediately grabbed my interest. Of course it's not unusual to have a number of bats in a roof or an outbuilding in France but a large number clustered close together will invariably be a Maternity colony or nursery. We went to look and there were no bats present, but this would be expected in late summer as the bats that formed the nursery would have dispersed to individual hang outs, however there were some photos that clearly showed an important nursery. Having taken the property owners details and asked if would be OK to inform Vienne Nature, (the responsible structure for overseeing bat populations in the Vienne departement), I packed up my gear from collecting the bees and left.


Greater Horseshoe bat and Geoffroys bat


At around this time the ongoing health situation with my wife took a serious downturn and everything took second place to my caring for her and I forgot about the bat nursery until after her death in July 2023. It was following this that I popped in to the offices of Vienne Nature and finally mentioned the bats, passing on the contact details to Samuel Ducept, (chargé d'études entomologie), and Alice Chéron, (chargée d’études chiroptères-faune). Following this Alice made contact with the owner of the property and a first visit took place that confirmed the presence of 494 Geoffroy's bat, (Myotis emarginatus), making this by far the largest and most important of the 3 known nursery sites for this bat in the Vienne. In June 2024 Alice Chéron visited the site for a second time and it turned out that two species of bat were using the same building as a nursery, the second species being 87 Greater Horseshoe bats, (Rhinolophus ferrumequinum), in total making this the third most important known nursery for this species in the Vienne. It's quite common for these two species of bat to share the same nursery structure and following the discovery of this important site it is proposed by Vienne nature to visit and monitor the bats in June each year.

Counting Geoffroys bats

A maternity colony which is known as a mise-bas in French refers to a temporary association of reproductive female bats for giving birth to, nursing, and weaning their pups. The colonies are initiated by pregnant bats that arrive in late spring but pregnancy in bats is another of natures remarkable affairs given that actual copulation usually occurs in the previous year prior to hibernation involving delayed ovulation where the sperm is stored in the bats uterus and oviduct, or sperm storage which is where sperm is stored in either the caudal part of the epididymis or the vas deferens, (sperm duct), of the male or after copulation in the uterus and oviduct of the female. Whether in the epididymis or uterus, the bat sperm can stay alive and healthy for months until it is required.



The number of bats in a nursery can vary substantially, in part depending on which species of bat they are but equally there can be a large variation within a species. With Geoffroy's bats it can be as few as 10 or exceptionally as many as 1,000. Somewhat less for Greater Horseshoe bats with a maximum of 600, usually much less tending to be between 30 and 200.


In Europe as a whole bats have suffered serious declines in their numbers and as such they are fully protected at both the European and National level. The positive news is that in the Vienne both of these species have populations that have shown some small growth in numbers for the period 1995 to 2015. This is based on winter surveys of their known hibernation zones and according to the Vienne departements “red list” Greater horseshoe bats are listed as “Vulnerable”and Geoffroy's bats are listed as “Least concern”. Overall in France they are both listed as Least concern but that shouldn't be seen as a reason for complacency and it is of utmost importance to monitor populations and protect any nurseries.



A few brief facts:


Greater horseshoe bat is Grand rhinolophe in French and Geoffroy's bat is Murin à oreilles échancrées hence the alternative name for this bat in English of Notch eared bat.


Greater horseshoe bats mainly eat chafers, dung beetles, noctuid moths, craneflies and caddis flies which they take from the ground or from the air when flying low along hedgerows, woodland edges and over water.


Geoffroy's bats preferred prey are either flightless, such as spiders or flies of all types that don't fly at night and can be taken from their resting places in scrubland, grazing pastures and inside animal sheds and shelters.


In both cases, as it is with all bats in France, large quantities of insects will be consumed in one night, well in excess of 1,000 when it comes to smaller insects.


Both species hibernate underground in disused cellars, caves, old underground mines and excavations.


If you think you have a nursery or would like to take part in winter bat surveys you can contact your local authorised bat group or contact me via my Facebook page if you need any help with this.

Chris Luck.



Wednesday, 18 December 2024

Dangerous Asian Hornets in France

 

We are increasingly reading about hospitalisations and deaths resulting from Asian hornet stings

BUT are Asian Hornets any more aggressive or dangerous than our native European Hornet and Social colony forming wasps? You may think so if you only go by media sources but in reality this isn't actually the case despite there being some well publicised reports of deaths.


Read the full post.

About the Dangers from Asian Hornets in France 







Friday, 16 September 2022

The Roller in France experiences an exceptional expansion in range in 2022.

(Roller Coracias garrulus Le Rollier d’Europe)

The European Roller is a migratory species spending the winter months south of the Sahara. The first ones to arrive in France are noted at the end of April, but the majority of the birds arrive in May when breeding starts immediately, some years from mid-May, but the peak of egg-laying takes place at the beginning of June, late pairs often lay eggs until June 25.

They are a cavity-dwelling species that often uses the cavities dug by Green Woodpeckers and any others cavities it can find in various trees (plane trees, willows, poplar, pine, oak, almond), at a height that varies between 5 and 10 meters. They sometimes will use holes in walls, sandy banks or can even use old European bee-eater galleries (Tron et al., 2008). They do not bring any nesting material into the chosen cavity. The female lays 4 to 7 eggs there, the incubation of which lasts 18 or 19 days. Breeding success is 73%, i.e. 3.6 fledglings per breeding attempt.

After their emancipation, the young Rollers will disperse outside of the immediate nesting zone in the Mediterranean region where they originated. This dispersion classically takes place in the Rhone Valley and in Occitania. However in 2022 this phenomenon has taken on a quite remarkable magnitude with a dispersal covering a large part of the southern two thirds of France, albeit sporadic and localised a situation that is unparalleled in recent decades. Obviously at this stage the reason for this is speculative but one way or another the heat waves that we experienced this summer in France will have been a significant factor with reduced available water and insects.

Above 2021 
and 
Below 2022


NOTE. A single Roller was seen in Lincolnshire, UK, at the end of August this year, (2022)

It's also worth noting that France is one of the few countries witnessing a population increase for this species that is declining elsewhere in Europe.



Chris



Thursday, 1 September 2022

White tailed sea eagles reintroduced in France

White tailed eagles effectively disappeared from France as breeding birds some 130 years ago. They have not nested since 1959, having been subjected to hunting, poisoning, pesticides, water pollution, egg collections and theft of chicks along with the disappearance of wetlands and other human disturbance and since then we have only a few young birds that visit in winter from the east and north east.

Earlier this year in summer four young white-tailed eagles were successfully released from a zoological park in Haute-Savoie in an already successful method of reintroduction.

After disappearing for more than a century, the white-tailed eagle is once again taking its place in the skies of the Alps. This is the case of “Haute-Savoie”. This young fishing eagle - named after the Departement that sponsored the reintroduction program - measures 2.5 meters in wingspan and weighs about 6 kg. According to Jacques-Olivier Travers, the founder of the animal park and reintroduction center of the Eagles of Lake Geneva she likes to perch on the big trees on the edge of the park.



For 15 years, he fought to reintroduce the eagle, now he is rewarded with the first flights of his eaglets."For me, it's the most beautiful bird in the world, but I'm not objective. To see them fly here, in Sciez, where they flew 130 years ago before disappearing for so many years, I think it has enriched biodiversity in an incredible way. It makes me forget all the hardships and 15 years of fighting. Every day, they give us incredible gifts,"says the falconer.

Like three other eaglets, “Haute-Savoie” was born in Sciez, in the aviaries of Jacques-Olivier Travers' reintroduction centre. All of them were opened a few days ago in August to let the eagles take their freedom. Its reintroduction program, totally unprecedented, is now crowned with success.

The young white-tailed eagle reintroduced on August 12 made a flight of 350 kilometers in two days, from Haute-Savoie to Ain via Jura, Oyonnax and Geneva, before returning to its starting point. This whole journey was reconstructed thanks to the GPS beacons installed on the back of the bird.

"It's impossible that he visually memorized the place where he was born. It means that there is something in his head, or maybe magnetic fields, that allow them to leave and know how to find their way back", Jacques-Olivier Travers.

After taking a break for a day, it headed to Switzerland. A spectacular flight, carried by thermals, up to 3,000 meters above sea level. Within ten years, 85 young eagles will be reintroduced to the shores of Lake Geneva.

The long story in French which is well worth looking at is HERE

Chris

Tuesday, 4 May 2021

Pesticides in France for members of the public and in public spaces.

 

From January 1, 2019, only plant protection and other gardening products of natural origin have been available to home gardeners in France. This was originally to have been from Jan 2022 but was brought forward as part of the French move towards reducing the use of products that are harmful to both humans and the wider environment. This follows the banning in 2017 of the use of Glyphosate, (Roundup), and other synthetic pesticides in public spaces including public roads, parks and cemeteries. (The term Pesticides is used generically these days to cover all “cides”, herbicide, fungicide, insecticide etc. to avoid laborious repetition).  

 


The use of synthetic pesticides continues to be permitted for farmers and professionals registered to work in the gardening business.

 

Synthetic pesticides are “a substance that is formulated or manufactured by a chemical process or by a process that chemically changes a substance extracted from naturally occurring plant, animal, or mineral sources.” Synthetic pesticides are often referred to as conventional pesticides.

 

Of course natural products can be equally as harmful if used excessively or in concentrated form. For example salt, vinegar, detergents and even Jeyes fluid are often promoted as being natural but all can and will cause serious environmental harm.

Natural products that have been approved can be found on this PDF list.

 https://agriculture.gouv.fr/telecharger/107938?token=05114b30f4d7c166288d72c1a15d4127da868bf56deb89544941882be8241c2f

Chris

Sunday, 4 April 2021

Voles and holes in France

 

Gardeners and householders in France are forever complaining about the presence of voles in their gardens, either because of the holes they make or the harm they can cause to plants and vegetables. Any harm they may cause depends on the species, some preferring roots and others seeds, grains, leafy plants and even insects. 

Although there are eleven species of vole in France only a few are of concern to gardeners or farmers. As a general rule these are the Field vole, the Common vole and the Bank vole. The Water vole in its land based form, (known as rat taupier), can have a major impact but they are only present in some regions of France. 


Occasionally some vole species have a population explosion that reaches a peak and then equally as rapidly the populations collapse back to normal or less than normal for a year or more.

What needs to be considered, as always, is the greater good and voles along with wood mice provide the main food source for a large range of creatures and in some cases what amounts to the only food source.

I would think that birds of prey will immediately spring to mind for most people; owls, buzzards, kites and hawks. All will catch and eat voles to some extent and for some they will make up almost 100% of their diet. They are of particular importance for Little owls, Barn owls, Kestrels, Hen and Montagu’s Harriers, all of whom will either not produce eggs or will experience high chick mortality numbers if there aren’t sufficient numbers of voles available. 

Most of the snakes that are found in France regularly eat voles. 

On the mammal front they will be eaten by Foxes, Stoats, Weasels, Badgers, Polecats, Genets, Stone Marten, Pine Marten and European Mink. 

Although it may seem a bit callous, the more voles that are available for mammals and snakes to eat the less pressure there will be for them to eat other creatures that are either less able to produce large numbers of offspring or that are already suffering population declines due to other causes. 

Due to the harm being caused to other non target species the use of poisons, (rodenticides), in the outside environment was prohibited by law in France in 2012. Poisoning to other creatures was being caused either directly with them coming into direct contact with the products or indirectly by the consumption of creatures that had been poisoned.   

Farmers in France can apply to their Prefecture for derogations to enable them to continue with poisoning fields to protect their crops and sadly this has become normal. It’s also not unusual to see dead small birds around animal sheds where poison grain is being used but that’s a different issue. 

These vicious cycles reduce the number of predators for the voles and other rodents and increases the need for poisoning, exactly the opposite of that which is required.

 

Chris

Saturday, 13 February 2021

Protected Reptiles and Amphibians in France

The new list of protected reptiles and amphibians in France has for the first time included the four species of Viper, (Vipéridés).

Vipera aspis - Vipère aspic - Asp Viper
Vipera berus - Vipère péliade - Common Adder
Vipera seoanei - Vipère de Seoane - Seoane's viper.
Vipera ursinii - Vipère d'Orsini - Orsini's viper

For far too long these species have been persecuted and killed. This combined with the destruction of their natural habitat has resulted in a serious decline in numbers.

Needless to say this will not in itself prevent the continued harming of these valuable species but will send a signal to those with ears to hear and to those in authority 

LINK TO LEGISLATIVE TEXT

Chris

Monday, 5 October 2020

Sexton or Burying beetles in France

 

Our house is full of places where animals live and overall we are happy with that and it rarely causes any actual harm although occasionally something dies which needless to say can smell a bit.

Fortunately, as always, the natural world is well equipped to deal with any small corpses that are inaccessible, (as they invariably are), and Burying or Carrion beetles are one of the insects that make their living from such things. There are some 20 odd species in France with a total of 30 species in Europe although not all are true burying beetles; some of them eat fungi or rotting vegetation.   

This year in September we were finding Nicrophorus vespillo in one part of our house and I would speculate that they had been on a dead Loir, (Edible Dormouse), probably behind the bath or false wall in the downstairs bathroom, one of the places where they frequently live. These amazing beetles can smell a corpse from a vast distance using the highly sensitive hairs on the ends of their club ended antennae. Having found a corpse, usually that of a small mammal, both male and female set about preparing it for use, sometimes excavating below it to bury it or even moving it if it’s small enough. Hairs or feathers are removed as are any eggs or larvae of other species, (flies etc), and the body is shaped into a ball where the beetles eggs are laid around it. Both parents feed and care for the young larvae when they hatch and this can last for up to 10 days before the young can consume the corpse directly. This feeding of the young larvae by adults is very rare in the insect world and is normally associated with social or colony forming species such as honey bees, wasps and ants. In addition to this unusual behaviour the parents are known to regulate the number of larvae in relationship to the quantity of food available on the carcass by removing and killing some larvae if there is a shortage of food or laying more eggs if there is plenty, thus having larvae of different ages on the same corpse. Larvae pupate in the soil or debris under the corpse before emerging between 20 and 30 days later.

 

Nicrophorus vespillo, burying beetle with mites in France
Nicrophorus vespillo with mites

As with some other insects, notably some Bumble bee species, these Burying beetles carry with them several species of phoretic mites that use the beetle as transport from one corpse to another. The relationship between these mites and the beetles has generally been thought to be benign but there is extensive research continuing on what the actual relationships and effects are. Needless to say it’s too complicated a subject for me and to go into here but I’ve put a link below and to a great video. 

Chris

LINK Phoretic mites and beetles 

LINK  Video burying beetle at work and larvae


Tuesday, 8 September 2020

Bees killing hornets in France


I know it is stating the obvious but every year is different in the natural world and no two years can be the same, however this is becoming increasingly exaggerated.

Habitat loss, agricultural methods and climate change along with other factors are causing rapid major changes for our native species requiring them to adapt or perhaps in some cases disappear completely.

For some species this is creating opportunities and they have expanding populations that are sometimes associated with an expansion in their range. However for most species there are accelerating declines and this in turn leads to changes of behaviour as species attempt to adapt.

Where I live most insect species have been in overall decline for the last 25 years and this year has been abysmal for them but I want to talk specifically about hornets. 

Following the usual slow start as nests were established and populations grew I started to see a gradual increase in both Asian and European hornets in the 2nd half of July and there are presently sizeable numbers of both around the hives and where the bees take water. Of course it’s to be expected that the Asian hornets would be behaving like this but it’s the native European hornets that are behaving differently in so much as they are concentrating their activity on taking honey bees. They always do take some but this is different and I can only speculate that it’s the shortage of all the usual insects they take to feed their larvae. This in turn is putting them more in harms way than would otherwise be the case and I have been finding several dead European hornets in front of hives.

Unlike the Asian hornets that keep their distance I have noticed that our native hornets tend to get very close to the hive entrance, even briefly landing on it, so it was no surprise that when putting the mouse guards back on the hives for winter the other day I saw a European hornet mobbed by a mass of guard bees when it got too close to the hive entrance. The hornet didn't stand a chance but it was 45 minutes before the bees were finally satisfied that they had dealt with her.







Amazingly no bees died in the process.

Chris


Friday, 28 August 2020

Ferrets and hunting with ferrets in France

In France the ferret has the status of domestic animal which is guaranteed to it by the order of August 11, 2006, issued by the Ministry of Ecology and Sustainable Development, and as such anyone can own a ferret as a pet.


However the use of ferrets for hunting creature such as rabbits is regulated in law and can only be practiced during the periods specified by the Prefecture each year.

The followings departements also require an individual permit to be issued by the Prefecture.
Alpes-de-Haute-Provence, Hautes-Alpes, Alpes-Maritimes, Ariège, Ardèche, Aude, Aveyron, Bouches-du-Rhône, Cantal, Charente, Corrèze, South Corsica, Côtes d'Armor, Creuse, Dordogne, Finistère, Gard, Haute Garonne, Haute-Corse, Hérault, Haute-Loire, Hautes-Pyrénées, Haute-Savoie, Haute-Vienne, Gers, Gironde, Landes, Lot, Lot et Garonne, Lozère, Morbihan, Puy de Dôme, Pyrénées-Atlantiques,, Pyrénées-Orientales, Tarn et Garonne, Var, Vaucluse.

It can be required to state the exact locality(s) where this is to take place and requires the permission of the landowner

Chris

Saturday, 25 July 2020

Chafers and Honeybees in France


The other day a chap on a French Beekeeping Face book group posted a photo of a beetle trying to get into one of his hives.   His initial reaction having “Googled” was that it may have been a Large hive beetle, Oplostomus fuligineus, a species that is found in Africa and although this has not yet been recorded in France we can’t be sure where anything is going to turn up these days. New non native species seem to arrive on almost a weekly basis in France and the Small hive beetle, Aethina tumida, another non native, has been found in Italy but as of this moment hasn’t reached France.

Anyway it was clearly a Chafer, that much was indisputable but not a Large hive beetle. I was sure, (ha,ha,ha), at first that it was dark Rose Chafer beetle due to its general appearance and size, (close to 2cm). However I couldn’t find any evidence of Rose Chafers trying to enter hives and although they are plentiful at our place, (Rose chafers and hives), I have never seen them on my hives so I started to deepen my search for any examples of this. After much searching and changing search terms I finally came up with some examples of where peoples hives had been invaded by chafers, but not Rose Chafers but Protaetia morio known as la Cétoine noire. In many ways they look like dark Rose chafers, they are 1.3 to 2 cm long, the dorsal surface is dull, blackish to brownish with small ochre spots more or less marked, or even absent, on the pronotum and aligned transversely on the elytra. Although the greatest populations are to be found in the Mediterranean zone they are present to some extent in almost all other regions of France. Other than the fact that they are attracted to honey their behaviour and life cycle is much the same as the Rose chafer, feeding on thistles, knapweeds etc with larval development in rotting wood and fibrous soil.  

Click on images to enlarge


It seems that the observations of them entering honey bee colonies take place in July and August and if the beetles are numerous they can cause severe disruption for the bees which can’t eject them as the beetles bodies and wing cases are too hard for a bee sting to penetrate. In the case of a hive it should be a simple case of using a hornet guard to keep them out but we can assume that they have developed this behaviour over thousands of years by entering natural colonies in trees.







Chris

Wednesday, 20 May 2020

May bug – Cockchafers - Hanneton commune and Hanneton forestier in France.


Hardly extraordinary I can hear people thinking but the other day I saw a May bug here, first one in several years. In fact in the 25 years we have been here there have only been a couple of years when I have seen them.  

A May bug or Cockchafer generally refers to Melolontha melolontha or the Common Cockchafer but there is an almost identical species in France with which they could be confused which is the Forest cockchafer, Melolontha hippocastani, which is a species found in woodlands.  

Generally Melolontha melolontha is considered an to be  an agricultural pest and they were brought almost to the point of extinction in the arable areas of France following the use of chemical insecticides such as DDT and Lindane. Both of these caused massive environmental harm before being banned from use. In the 19th century prior to insecticides being available the beetles were collected by hand to be killed, a process called “hannetonnages” that had some effectiveness even if a little laborious. Schoolchildren would sometimes be enlisted to perform this task where they would place sheets under the hedgerows in the morning and shake them out, collecting them in containers. Back at school the chafers would be weighed and some payment made by the kilo, a kilo roughly equalling 1,200 chafers. We can only dream of such numbers these days.

Since the 1970’s their numbers have slowly recovered on pasture land. However where intensive arable farming is practiced they are few and far between as almost every available piece of land is cultivated and constantly ploughed. This practice makes it close to impossible for them to complete their life cycle as any larvae, in the unlikely event that there should be any, are constantly bought to the surface and exposed to the birds that follow the tractors. This only leaves the roadside verges and any small uncultivated parcels of land. The situation has been made worse by the removal by the EU some 15 years or so ago of the requirement for farmers to leave a percentage of land fallow. This resulted from the misconceived idea that bio fuels are more important than habitat, a decision that has caused and is causing untold harm to a vast range of species.   

Chris


Friday, 24 January 2020

Beaver in Nord pas de Calais for the first time in 150 years

The presence of Beavers has been confirmed in the area around Val-Joly, in the Avesnois, Nord-Pas-de-Calais after 150 years of absence. More than 20 trees have been found with the distinctive pencil cutting and fur traps have provided DNA evidence.

The beavers will have crossed the border from Wallonie, (Belgium), where they were released in the early 2000’s by activists where they have apparently expanded at an extraordinary rate both in numbers and territory covered in the canals and rivers that crisscross the region.

Unlike the recent discovery in Pyrénées-Atlantiques which is likely to have been a clandestine release this will be a natural progression and should provide a basis for continued expansion throughout the region.

Monday, 11 November 2019

Freshwater jellyfish in France.


This summer we experienced a very long period of drought and two scorching heat waves which are probably the reason for an unusual and little known phenomenon to occur in the Vienne departement along with other parts of west and southwest France! These were exactly the right conditions when the water warms sufficiently for the emergence of a tiny freshwater jellyfish, craspedacusta sowerbii.  

They are normally only seen when they take the form of a small bell-shaped jellyfish known as a hydromedusa and float near the surface of the water but this requires a water temperature of at least 25°C and forms only one part of their interesting lifecycle.

As a jellyfish they are 20–25 mm in diameter, somewhat flatter than a hemisphere, and very delicate. They have a whorl of up to 400 tentacles tightly packed around the bell margin. Hanging down from the center of the inside of the bell is a large stomach structure called a manubrium, with a mouth-opening and four frilly lips. Food is taken in and waste  expelled through the mouth opening.
Click photo to enlarge


Craspedacusta sowerbyi more often exist as microscopic podocysts (dormant "resting bodies"), frustules (larvae produced asexually by budding), planulae (larvae produced sexually by the hydromedusae), or as sessile polyps, which attach to stable surfaces and can form colonies consisting of two to four individuals and measuring 5 to 8 mm.

This species, originally from China (Yangtze River Basin), probably originally arrived in Europe with aquatic plants imported for botanical gardens. In the ponds of Kew Gardens, near London, it was discovered in 1880 by the naturalist William Sowerby. Since then, it has conquered every continent thanks to the trade in aquarium plants.

In France they can be found in slow moving rivers, lakes and ponds, maybe even your garden pond if they have been transported there with pond plants or stuck to birds’ feet.  Should you come across them you need not worry, they present no danger to humans or other mammals.

Chris


Sunday, 3 November 2019

Man stung 30 times by Asian Hornets in France


It’s not that Asian Hornets venom is anymore toxic than our native hornet and wasps, or even that they are more aggressive away from their nest. It’s more about where Asian Hornets are increasingly choosing to make their nest.

I’ve chosen a few recent cases to illustrate this.

In Montmorillon, Vienne, a 76 year old man was stung more than 30 times by Asian Hornets in his garden when cutting a small hedge outside his house on the 30th of October 2019.
When his wife came to his assistance he was covered in hornets and she was stung 5 times before neighbours arrived with thick clothing and managed with the use of wasp sprays to get him away from them. He was transported to the hospital by the Pompiers to receive treatment.


The couple had never noticed the presence of the hornets in the hedge which is about 50cm high.

Earlier in the year on 1st August, in the Nantes area another man was stung more than 10 times when he disturbed an Asian Hornet nest in the water meter box and fortunately suffered no serious effects, however the day before at Grayan-et-l'Hôpital, Gironde, a woman died following multiple stings when she disturbed an Asian Hornet nest at about 1.5 metres from the ground when going to her post box.

In these and most other cases attacks occur when nests are disturbed, whether that is Wasps, Bees or Hornets. I have myself suffered the consequences of putting a brush cutter into a wasp nest at ground level and know how easy it is to hack away without first looking for any obvious nest activity. 

What’s becoming increasingly clear for anyone that has been following the evolving situation with Asian Hornets year on year is that they are increasingly making their nests close to the ground. This inevitably leads to an increase in attacks. (European Hornet nests are always under cover in buildings or hollow trees making accidental disturbance less likely).

Other than in a handful of cases a year in France very few people actually die from stings.

More about stings LINK HERE

Chris