E-mail: Password: Create an Account Recover password

About Authors Contacts Get involved Русская версия

show

Reasons for the change in the number of swallowtails

Community and ForumInsects biology and faunisticsReasons for the change in the number of swallowtails

Pages: 1 ...4 5 6 7 8

22.08.2015 14:17, ИНО

Well, there are different steppes, psammophytic ones, for example. Consequently, chernozem is formed only during the functioning of individual varieties of steppes, that is, in fact, my megastep (tm). In general, alpha and omega are all one, solid power, and Roma has garbage.

22.08.2015 17:40, Кархарот

In the Donbas, the terrain is more diverse, therefore, vegetation and flora should also be a priori more diverse, and with them the fauna. In the northern Black Sea region, of course, not garbage, but the steppes are more monotonous due to the fact that the terrain is more uniform. In my opinion, there are a lot of interesting and peculiar things for an entomologist both here and there.
Likes: 2

23.08.2015 22:28, Hierophis

Well, there are different steppes, psammophytic ones, for example. Consequently, chernozem is formed only during the functioning of individual varieties of steppes, that is, in fact, my megastep (tm). In general, alpha and omega are all one, solid power, and Roma has garbage.

That's how it is - academic science user posted imageAnd what a syllable.. "Therefore - .." the expert concluded weep.gif

And in the jungle, then, judging by the above, in general complete garbage weep.gif

There is nothing particularly good about the formation of chernozem, since this is the result of a continuous cycle of organic substances with their deposition as a result of unfavorable climatic conditions.

23.08.2015 22:44, ИНО

Swallowtails-a reason for what? You're a non-drinker, I guess. This is to meet the Amur tiger, "everyday life" in the forest and walk a lot. Although even then beginners are lucky. And if there is a swallowtail in the biotope in the usual amount , then it is immediately visible. Of course, if you arrive early in the morning or late in the evening (or even at night), and leave after 5 minutes, you can skip it. But still, I believe the Wave Storm expedition took place during the day and was much longer.

This post was edited by ENO-08/23/2015 22: 45

23.08.2015 22:49, Hierophis

Yeah... Here, in principle, it is better to keep silent than to write something =0

28.08.2015 20:36, Wave Storm

When as, when as. You can walk quite a bit and meet a lot of things. You can walk a long distance and meet nothing. Now it's the end of the month and today I went to my sandy steppe in the vicinity of Novaya Kakhovka. The temperature is under 30 gr. There aren't many butterflies at all. A little Aricius agestis, a couple of polyommatus Idas, coenonymphus Pamphilus, a little even Pontius aedus, just one licentia tersamon. Makhaonov saw madly flying away from me 3 times, most likely it was the same butterfly. I also saw one swallowtail caterpillar. 2 years ago on the same uchastochke was cooler: a bunch of swallowtails, a couple of draughtsmen Phoebus, Didyma. Yes, here, in fact, is that report:

http://molbiol.ru/forums/index.php?showtop...dpost&p=1430265

In 2013, I remember, there was a heavy snowfall in the spring. And at the end of August, it got colder and it rained for 1.5 months. This year there was no snowfall, but there were frosts and a lot of rain, and now it is relatively hot.

This post was edited by Wave Storm - 29.08.2015 07: 00

28.08.2015 20:44, Wave Storm

By the way, in the spring of 2013, there were a lot of them on the beams, and this spring I don't remember very well what was there at all. They probably froze to death.

This post was edited by Wave Storm - 28.08.2015 20: 46

28.08.2015 23:07, ИНО

Are you cold? Last winter was one of the mildest in recent years. Winter 2012-2013 - much colder.

Was the other day in my megastep TM. It's just awful! In a bad way. Sushnyak this summer ditched it almost completely and made it look like romyna favorite semi desert:

[attachmentid()=235648]

Instead of such a luxurious flowerbed of flowering herbs, there are only yellowed cereals and various kinds of "perikati-fields"that have come off the horses. Only in rare places do the inflorescences of kermek broadleaf rise slightly from the ground. But in the old days, they were up to a meter high, and up to two meters wide. Other flowering plants also occasionally come across steppe aster, Alsatian golden leaf, cornflower pruzhatocheshchaty. All the other varieties, with the exception of some half-dead specimens, either faded and withered, or did not bloom at all. For example, it was not possible to find inflorescences or at least coplodia of the roundhead onion. Closer to the stream, in the meadow part, the picture is enlivened by extremely large inflorescences of tarragon solonechnik:

_____472.jpg

This year it blooms very profusely and luxuriantly, mainly on the opposite slope. All insects also fly there, while in the" megastep " nectarophages are almost invisible. The nests of polistov after the destruction of hornets never appeared again. In general, the impression of the walk is depressing. The only good news is that the solonechnik is still full of polistov of all three species, including males, so there are some "secret" nests that have not been affected by the hornet raid, and quite a lot. And next year with polistami all should be well, if only all hornet makti this time zagnestatsya as far as possible.

29.08.2015 7:02, Wave Storm

Are you cold? Last winter was one of the mildest in recent years. Winter 2012-2013 - much colder.

Yes, I didn't specify: in the spring, there were frosts in late March and early April.

29.08.2015 12:56, ИНО

So it happens almost every year, don't look there.

30.01.2016 23:41, ИНО

Still found a lost German girl. The genus is definitely Ronisia (yes, Timk still needs to add a lot of things, if, of course, he did not abandon the site at all) the species is presumably brutia, because they do not give other names for our fauna. But it wouldn't hurt to check the bourgeois keys for full confidence, no one knows such keys in the public domain?

The size of females in "Green" is 9 -16 mm, in Tropidotilla littoralis, according to the same source, 7 - 15 (by the way, who knows how many letters t are actually in this specific epithet?)

I will measure my copy when I wet it and spread it out, but this is still difficult, since it is curled up:

user posted image

31.01.2016 0:54, Hierophis

Well, what does the German woman have to do with it? Okay, even in wasp nests, it seems to be a wasp, although only strangers live in nests)

31.01.2016 14:42, ИНО

Well, what does the German woman have to do with it? Okay, even in wasp nests, it seems to be a wasp, although only strangers live in nests )

I suggest that Pan reread this topic first to the end and take something for dementia.

24.07.2016 4:22, ИНО

This spring, there were noticeably more swallowtails than in previous years, I observed up to two pieces at once, although all small ones. And last night, an event happened-I saw the first caterpillar of this butterfly in my life!

_____868.jpg

The caterpillar is still small, about the size of the last age of the "standard scoop". Ate, if I correctly identified, Sium sisaroideum. It is noteworthy that in that place there was a lot of Seseli libanotis and Daucus carota, on them, no caterpillars or rodents were found.

So, God willing, the population of swallowtails in the Kirovsky district of Donetsk will gradually recover.

24.07.2016 7:16, Hierophis

Yes ushsh... well, it remains only to congratulate Ezox on restoring the vision of the swallowtail population, and seeing their first caterpillar jump.gif

24.07.2016 10:55, Nick444444

  
The caterpillar is still small, about the size of the last age of the "standard scoop". Ate, if I correctly identified, Sium sisaroideum. It is noteworthy that in that place there was a lot of Seseli libanotis and Daucus carota, on them, no caterpillars or rodents were found.

So, God willing, the population of swallowtails in the Kirovsky district of Donetsk will gradually recover.

Nothing surprising smile.gif. You might have seen more caterpillars, but not all of them are sitting at the top, most of them are sitting at the bottom.

25.07.2016 0:47, ИНО

N, so I wasn't just looking at the top. Don't underestimate my inquisitiveness and the brightness of the flashlight. In general, I have been looking closely at various parasol animals since childhood in order to find swallowtail caterpillars, but this is my first success. This is not surprising, considering that even the incomparably easier-to-detect imagos come across in my places in units and then not every year. So some serious limiting factor still has a place to be. For comparison, the caterpillars of polyxena on a cloudy day came across me on small heels literally hundreds, it was only necessary to walk to the places of growth of kirkazon. And what is really going on there in the dark time of day can only be imagined. But the plants in the end look very poor. And I don't remember any special nibbles on the umbrella ones.

25.07.2016 10:51, alex017

Have you tried to help him spread out yourself? Grow, release. Interesting and useful. Why wait for the grace of nature?

25.07.2016 23:11, ИНО

This is not a horseradish that I sowed in the garden and he will grow it himself. In order to start reintroducing products with the prospect of real results, we need laboratory facilities and funding. Otherwise (terrarium with dill in the bedroom) this will be an empty zilch, completely incomparable in scale with the natural reproduction of even that weakened population. which we have in nature now.

25.07.2016 23:35, Hierophis

No, well, this is still surprising, the caterpillar of the swallowtail is one of the most noticeable caterpillars, given that the swallowtail is still not the most numerous butterfly, such as many whiteflies and jaundice, but try to find the caterpillars of whiteflies.. Swallowtail caterpillars are found even without special searches, as they often sit on well-viewed plant tops.
Given the dubious nature of the "population depression", strange conclusions can be drawn )

By the way, Esox, a familiar plant, eh? It doesn't look like ragweed no.gifis growing here jump.gif

Pictures:
picture: P7240986.jpg
P7240986.jpg — (1020.26к)

26.07.2016 1:30, ИНО

The only conclusion that can suggest itself to a normal person: unlike panovye balok in Mykolaiv region, in Donetsk (correction for some dissenting forum members - in the Kirovsky district of Donetsk) swallowtails are now really few. And you can only envy the fact that their tracks are visible everywhere in panov places in broad daylight. But what does this have to do with my places? Here, in June evenings, deer beetles can be seen everywhere in very large numbers. What's wrong with Pan? So the conclusions are obvious.

As for the vague image of the plant, I agree with Pan:"it doesn't seem to be ragweed."

26.07.2016 5:50, alex017

If I have seen a swallowtail several times and even photographed it once (I have seen it 5 times in my life), then I have never seen a deer beetle (there are too few oaks).
Some people need all the funding, someone's help, and so on. Probably a habit of this)
Caterpillars 20-30 to grow probably on forces and without funding.
And what about the population of two-legged areas of the Mykolaiv region and the Kirovsky district of Donetsk? These creatures are very fond of killing insects, especially caterpillars, especially if they are large (are they pests!!).
ps: every time I see a hefty caterpillar, I want to drag it home, but it stops me that it can die...yes, and the released butterfly in winter where to put it...

26.07.2016 6:35, ИНО

27.07.2016 5:42, alex017

So we like the larvae of bipeds in the spring to set everything on fire.

31.07.2016 8:49, vitimof

We, in the Yaroslavl region, a dozen years ago, swallowtail was a rarity, but now it is quite common. During the walk you can meet several butterflies.
Likes: 1

16.11.2018 5:35, Wave Storm

The objective reason for the decrease in the number of swallowtails in our NC is the destruction of biotopes on which the stallion grows - the most common food plant of swallowtail caterpillars. First, in some places we built up a sandy steppe along the road -
they built a car wash, a supermarket of some kind, and some other nasty things. And secondly, illegal (and "legal" too) sand pits, which, after they are abandoned, are overgrown with poplars, but not with sandy-steppe vegetation.

This post was edited by Wave Storm - 11/16/2018 05: 36
Likes: 2

26.08.2020 17:56, ИНО

In the last week, all the surrounding areas, including very distant ones, were radiated. I went in clear weather, at different times of the day. He made a lot of interesting entomological finds. But the total for swallowtails is a round zero. Although in the 90s and the first half of the 2000s, the end of August was the peak summer period of the second generation of swallowtails, when they could be regularly observed even in urban areas, not to mention those steppe gullies that I recently visited. So, no matter how many people here persist in their unwillingness to notice the obvious, and the facts speak for themselves - the situation with swallowtails in Donetsk has greatly worsened in recent decades. And it is impossible to attribute this to random weather fluctuations. The stallion also has nothing to do with it-it is full of it everywhere, and of two types. And the last time I saw a swallowtail caterpillar in general was on the porucheynik, which this year has grown more than ever in my memory. It's definitely not a shortage of feed.

31.08.2020 1:20, Wave Storm

[This year we have something on the sands in the city - 0 swallowtails. I went through them on 30.08.20. Exactly seven years ago, on 30.08.13, it was easy to meet a swallowtail there. I then met 7 pieces for a walk. But then the year was also interesting due to the weather. That year in the spring there was heavy snowfall and flooding in the plavni. And at the end of August, it got colder, almost daily rains began, which we continued somewhere until mid-October. I don't know if these factors affect the population.

This post was edited by Wave Storm - 10.08.2023 13: 48

09.09.2021 23:10, ИНО

Hooray! In a day I met as many as 5 swallowtail caterpillars, which is a record for me. But very locally: all fit on three plants of the stallion growing a few meters from each other, despite the fact that I have looked at more than one hundred such stallions in the last two days, and in different places. Probably, one female was deposited without catching my eye (this year I did not see a single butterfly, either in spring or summer). In general, now we have a lot of different caterpillars crawling in broad daylight: moths, scoops, hawk moth... It's very cold at night, so we have to eat them during the day.

picture: DSC00166_1a.jpg
picture: DSC00181_1a.jpg
picture: DSC00194_1a.jpg
Likes: 1

10.09.2021 19:22, Wave Storm

Last week I also saw a lot of swallowtails, both butterflies and caterpillars in the city limits. The reasons for the decline in the population are still the destruction of biotopes. A solar power plant was built on the preserved part of the steppe. I used to be in favor of solar power plants, but now I'm more against it. I would understand if it was built on a former agricultural field. But to install on the preserved areas of the steppe is a crime.

This post was edited by Wave Storm - 09/10/2021 19: 31

11.09.2021 9:38, ИНО

11.09.2021 15:16, Wave Storm

I didn't understand, since we saw a lot, what kind of reduction in the number of people we are talking about? Or did you even have more of them than turnips before?

Well, I wrote not only about Donetsk. We used to come across flower beds in the city, but now only in those flower beds that are close to the sandy steppe.

This post was edited by Wave Storm - 11.09.2021 15: 17

09.08.2023 19:21, ИНО

This spring I saw one butterfly right in the city. But it's already August, and you can't see the second generation. At the end of July, I found one caterpillar on Seseli libanotis in a beam, went to see it for a week, watched it grow, and the day before yesterday it disappeared. I suspect first of all a person - it was very much in a prominent place sticking out, from the path you could see about ten meters away. Still, the swallowtail has a flawed feeding strategy: sit on the top of a large herbaceous plant that stands alone, eat at night, during the day, without trying to hide somewhere, sleep as if predators and other curious people around you do not exist. Despite the fact that she has no poison, it seems, only the retractable horns are odorous (although I did not smell anything). It's amazing how they manage to survive to pupate at least once in a while with such a negligent approach to survival.

10.08.2023 13:49, Wave Storm

10.08.2023 20:30, ИНО

Well, we have a lot of precipitation this year, especially in spring. And the year before that. And the day before last. This summer, the stallion, on average, reaches the level of my eyes (it is convenient to take photos of insects on its flowers), some specimens are above my head. However, the swallowtail caterpillar was only found on one of the many hundreds. Moreover, it is almost impossible not to notice the age-old caterpillar, so it bites the inflorescences and upper leaves. So it's clearly not a matter of moisture.

09.01.2024 12:26, excellens

About mamamia weep.gif
This precision was there once, when they still sang the song "be a pioneer, always be ready" wink.gif
Gyrostabilization in Russian jump.gif

90% probability that also 1 piece)))
mdya...
Ixperd+slanderer
Leave him alone, how you put up with it...

Pages: 1 ...4 5 6 7 8

New comment

Note: you should have a Insecta.pro account to upload new topics and comments. Please, create an account or log in to add comments.

* Our website is multilingual. Some comments have been translated from other languages.

Random species of the website catalog

Insecta.pro: international entomological community. Terms of use and publishing policy.

Project editor in chief and administrator: Peter Khramov.

Curators: Konstantin Efetov, Vasiliy Feoktistov, Svyatoslav Knyazev, Evgeny Komarov, Stan Korb, Alexander Zhakov.

Moderators: Vasiliy Feoktistov, Evgeny Komarov, Dmitriy Pozhogin, Alexandr Zhakov.

Thanks to all authors, who publish materials on the website.

© Insects catalog Insecta.pro, 2007—2024.

Species catalog enables to sort by characteristics such as expansion, flight time, etc..

Photos of representatives Insecta.

Detailed insects classification with references list.

Few themed publications and a living blog.