New Red List of Bees — A Warning

After 30 years the year becomes active on the Rotenlist of the Wildbienen. They give the Gefährdungsstatus of Bienenarten in der Schweiz a. The Ergebnisse is a fact and a meeting with Handeln.

Text by ohnegift.ch, written by Solène Schaub

Before we have the new Red List of Bees (1) for Switzerland with Status in the Year 2022. These were published in the real version from 1994 and have an active effect on the Gefährdungszustand of the Bees in Switzerland. Honey bees were not valued in the previous list, the few free groups of honey bee peoples are favored by the peoples from beekeeping and are not influenced by environmental factors. The list contains a number of important points of attention for practical nature conservation (see Box “From the Red List for Nature Conservation”).

Since the new Rote List is only available in 1994, this can be done. Damals would have used different methods and a smaller amount of data. There is also no talk of a situation in the situation – if you see it, it is a new list of full-fledged images of the wild nature in Switzerland to strengthen.

What are Red Listeners?

Red Listen to the turns of the Aussterbewhrdscheinlichkeit of Organisms and the Gefährdung of Lebensräumen. So make sure that there is an art warning system for the biodiversity of biodiversity. Solche Listen to your jewels on a designated regional area, the roads are different Listen to different countries or regions. In Switzerland there are Red Listen for 28 groups of organisms(2). If it is only a little, it will not take long before all groups of organisms have left a Betreilung. The Betreilung of Gefährdung an art is based on criteria, the of the International Union for Conservation of Nature (IUCN) has become final. Every such art is one of the following categories (gemäss IUCN) such as:

REGARDING* – regionally extinct / regionally (zB in der Schweiz) ausgestorben
CR* – critically endangered / critically endangered
NL* – endangered / strongly threatened
VU* – vulnerable / vulnerable
NT – near threatened / near threatened
LC – least concern / no concern

Both with *markierten Kategorien spricht man von Arten, die «on der Roten Liste».

High Red List Values ​​by the Bees

In de terstehenden abildung, het ergebnisse van de Rote Liste zeeammengefasst. It is assessed: quickly half (279 art, ~46%) of the Bienenarten der Schweiz has been fährdet and follows as a Rote Liste-Arten category (siehe rot gefärbte Anteile). Other affected persons include the following artengruppen:

• Flower specialists: Arts, the best of the best family families or families used as a solution are a knitting spectrum and a program for its use.
• Bottom nister: Die meisten Bienen nisten in self-grabenen Gängen im Boden. Others in Hohlräumen ausserhalb des Bodens (zB Grashalme, Totholz, leere Schneckenhäuser). The bodennister is fährdeter as the oberirdische listening arts. It may be that there is a specific analysis and soil substrate, the vegetation beds, the compaction gradient or the soils that are offered, where the most diverse types of art are less whählerisch.
• Art, which I Tiefland or in medium altitudes come into being. These arts can be influenced by the anthropogenic pressure on the German way of life.
• Summer kite: Arten, die in the summer flight, if you dissolve, die in the active period. Grund is the wringer and broke in the summer, especially in rural areas that are intensively enjoyed.

59 bee art ephemerals in Switzerland have died today. It makes up 10% of domestic art and is alarming. Compared to the insect group, an extremely high other Anteil (see Abbildung unten) dies. When interpreting the graphics, you have considered that you cannot listen to all the Red if you have those of the Bees. The last list is from the years 2007 (Heuschrecken), the last from the years 2021 (Singzikaden). It is worth noting that the first part of the Red List Art (Summe der Roten Flächen) has been committed in all insect groups in a certain situation. This is between 30 and 50%, with a range of the Singzikaden with 80%.

If you follow the following pages, you can find the most important information about a person’s high life status, as in the publication of the Roten Liste themes.

Flower mangle

• Flower mixture: Die Blütenmenge ist von entscheidender Bedeutung. The versorgung is occasionally that the pollen and nectar of Duzenden belong to more Hunderten Blüten.
• Bladder trap: Etwa half of all wild animals are specialized, it is one of the best options for the family of your nahrung. A fehlende Blütenvielfalt is the background for the Gefährdung vieler Bienenarten.
• Flower continuity: De Blühzeitpunkte müssen met de Flugzeiten der Bienen überinstimmen, nur dann since sid für de Bienen von Nutzen. An appropriate Blütenangebot must be the active activity of the Bienen sicherstellt.

Wild Nesting Places

Zum Nisten brauchen Wildbienen a small structure and small structures, with zum Beispiel Totholz, stehendes Altgras, offene Bodenstellen, Sand or leere Schneckenhäuser. Jede Art hat specific design. Momentan mangles is a common malfunction. The Gründe may not be so good, beispielsweise: versgelter Boden, eintönig bewirtschaftete Flächen, «saubere» Landschaft, wo Totholz or stehengebliebenes Altgras kein Platz bekommt.

Disrupted reticulation

The distance between the Nist and Nahrungsplätzen may not be greater. Richtwert: Max. 100m for small and max. 300 meters for large Arten. This cross-linking of the living space is not really common in the rural areas of the Mittellandes.

Pesticides

• Herbicide verringern das Blütenangebot.
• Insect repellent it is possible to look directly or indirectly. If there is neonicotinoid, it is a nervous effect that occurs in the Pflanzen period.
• The damaging effect is higher if the insects are also burdened by other factors, such as natural health or illness.
• Wild beers are a strong source of pests when it comes to honey, if they are alone. The brutal work can be done with the agent in contact and giving gifts to the Larvae. It is important that the quality of the products is not affected by the reproductive activities. These die, before they were, were the Larvae-abgeben.

Bee

• Compete: Vor allem in landwirtschaftlich intensive genutzten Regionally tiefer and mittlerer Lagen ist der Konkurrenzdruck durch Honigbienen gross. The fact is that the extinguisher is light and sharp on the honeycomb dense high quality.
• Insane punished: Honeybees are significant carriers of diseases. If you see viruses or pilzspores on flowers, wild bees are infected. The effect of the strong effects is not so great.

Climate control

The climate walk had many problems, which in its total complexity are still not understood. Fundamentally, it can cause a negative representation of art history, while the Hummel representation is performed. The following effects are examined, which have to do with the following matters:

• Higher mortality in winter due to rising temperatures.
• Warm art products can be mixed in higher layers and the art-tolerant art production is carried out.
• Pathogen can spread.
• Blue hour points and flight times can change their time. This is not more than specifically intended.

Sources:
(1) BAFU (2024): Rote Liste der Bienen. Gefährdete Arten der Schweiz. Status 2022.
(2) BAFU (2024): Rote Listen: Gefährdete Arten der Schweiz.
(3) NHV Art. 14 Abs. 3