Fight effectively against slugs!

[to be chafoin]

By the way, these photos taken yesterday of "wild lettuce" (Lactuca virosa)

Yes thank you for these beautiful pictures, it's perfectly clear now, I find the same at my house on the edge of the ditch.
PS: The dorsal spines are also found on the magnificent teasel but the leaves of the latter do not have this twisted aspect characteristic of wild lettuce and that we can see clearly on your first 2 photos, on the other hand they are opposite and form a small bowl that retains rainwater in which the birds could drink ... This is why it is also called the "birdhouse":

teasel

[izentrop]

the wild boars that would mate 5 times / year instead of 1times / year before! Same thing for some fish that would spawn twice a year instead of one! Is it the same for slugs?

Not possible, because of the duration of gestation. In fact the laie has a litter a year, exceptionally 2 the years of binge.

[Did67]

They do not have the right to mate for pleasure, even being pregnant ????? Hard, boar life. [humor]

The gestation of the wild boar is in fact almost 4 months ... The maximum technical possible in intensive "breeding" would be 2 (knowing that lactating females, in mammals, are not fertile).

Like what, once again, I can not help but think that things are being told, on the net, by people who display their ignorance - I never stop, in my lectures, begging people to first take information gleaned from the net as being presumed false (it is so 3 times out of 4). And not the opposite. They are less likely to be wrong. And even to think that the bigger it is, the more it is false. The more it is "astonishing", "marvelous", "extraordinary", and the more it is forwarded, transmitted, repeated. The success of "fake news" has no other engine (well, yes, there are people who know how to make the buzz). It's big, it's huge ... And it makes millions of "likes" - and it remains false but what does it matter ??? No one is trying to be honest, or credible. It's just "playing smart", being "liked" ...

It was my minute of rage. I'm going to mow. The weather is nice.

[to be chafoin]

Yes, perhaps, the information remains to be verified as it is. There may have been a confusion somewhere ... The person (it is not by the net) who informed me of this seemed to me honest and evoked information from a discussion she had had with a specialist in wildlife management working in the Gers. That's why I allowed myself to share it on a forum living which approaches a form of orality and I have intentionally used the conditional .... I therefore do not really understand this new "rage".
To see so ... I will ask for clarification.
Nevertheless, it seems that females reproduce younger and younger and that the traditional cycles of reproduction are modified (more interruption of estrus in the summer ...) which would be a cause of the strong progression of wild boar populations in France, despite an increase in hunting catches.

[Did67]

There is also the agrainage (generalized in the forest behind my home; there is not a walk without me coming across a "site"). Even if it is regulated.

But be careful, I am not discussing the fact that we can go from one to two litters per year. What is certain is that wild boars proliferate and the media regularly take hold of the subject. Proliferation linked to farming, the extension of forests and wasteland (yes, let's not forget it!) And global warming, sometimes the decline in hunting pressure (hunting of "notables", who come to celebrates once or twice a year rather than hunts!). It was the 5 or 6 litters that made me react. Why these exaggerations, beyond the "technically possible" ... It's like "over-unitary machines": guaranteed success!

On the causes, hunters and "ecologists" clash with a lot of truncated arguments ... The media repeat the arguments of each other. And the point is, we don't have a lot of "hard data".

This article seems a little more balanced: http://www.vedura.fr/actualite/7325-tro ... ers-france

[Did67]

To see so ... I will ask for clarification.

.

One of the details to ask is not the number of couplings. But the number of litters. And if it's more than two, how is that possible "technically". A mutation ?

The fact that the females are fertile at a younger age will of course play a role. But at the margin. Suppose she "gains" 6 months out of 6 years of average fertility (I do not know the figure for the life expectancy / duration of fertility of the sow; if it is 10, the% would be worse): this will make + 8% reproductive potential ... Nothing that explains a doubling or tripling of populations.

But in reality, the fertility of young women is lower ... So it plays less.

This is what the Belgian hunters say about boar reproduction. They know wild boars well in the Ardennes (and have the same problems as us!).

http://www.chasseacrw.be/gibier/sanglier09.asp

It should be noted that heat - in the climatic sense - in summer would increase anoestrus (the absence of "heat" - in the reproductive sense). Global warming should therefore reduce the number of cycles! [which would be consistent: the animals reduce reproduction when the survival conditions of the young are reduced, or heat = less food]

[Did67]

.... I therefore do not really understand this new "rage".

I am simply appalled at the amount of "false information" being peddled. Sometimes that's a good part of the questions I'm asked ("What do you think of this ..." or "... of that"). With age, I drool! It's stronger than me, I go off my hinges.

But yes, I'm wrong if it comes from someone (although, the "initial" info, we don't know where it came from; and a "wildlife management specialist" may be a specialist in raptors or newts who repeats an info read or peddled on wild boars! Because if he is a true specialist in wild boars, I do not understand that he did not "tilt" that technically, a sow cannot have 5 or 6 litters per year). So it's more the story of the man who saw the man who saw the bear ...

[Ahmed]

The current litter size is considered to be 3 for 2 years old, which is more than once (one litter / year), probably due to crosses with pigs (volunteer or accidental). Another reason for the increase in their population is the mild winters: young people are very sensitive to winter cold, which reduced the numbers.

[izentrop]

The agrainage, Ahmed, Did discussed it.
Behind me, there are sites all 100 m. And my neighbor farmer complained to the prefecture. I know it because exceptional battues are programmed, it is posted in town hall

[Ahmed]

I did not mention this factor, since it had already been mentioned ...