Management of the biocorridor on Střítež Hill

Project Blog

The page is being updated.

What you will learn here

  • How we started the project
  • What are our goals
  • What we managed to achieve
  • What's new 
  • What are we planning

Date of last update: 20/12/2024

Thank you

The project is being implemented in co-operation with the Ministry of the Environment (hereinafter referred to as MoE), Forests of the Czech Republic, State Enterprise (hereinafter referred to as LČR) and other partners within the framework of the programme

Biodiversity Protection for 2024

We thank all parties who enabled us to prepare, go through the challenging preparation, and realise the project.

Thank you ČSOP for their support in administering and selecting our subject for implementation!

Bumblebees PLUS and 1. ZO ČSOP Polička

About the project – introduction

In 2022, a biocorridor was established near Polička. The original topsoil was turned into a grassy area bordered by fruit tree plantings. The aim, however, was and now is a diverse biocorridor, as an area with nectar-bearing plants, which should suit the composition of plants to the specialisation and needs of targeted bumblebee species.

Besides bumblebees, the area hosts a wide spectrum of other fauna with similar habitat requirements (dipteran and hymenopteran insects, butterflies, field birds, etc.). The project's aim was to ensure a method of management so that the host plants would gradually regrow and provide sufficient food resources throughout the entire growing season. 

We are pleased that more entities have been involved, united by a common interest – to do something for nature and create space for the protection and development of biodiversity in the Žďár Hills.

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Project aims and content

Current state 
In the summer of 2022, we were approached by the owners of plot number 2013/1 in the cadastral area of Polička with an offer to use the area in a way that would benefit nature. It is a strip

former field of 10,591m², approximately 14m wide and 770m long. The area adjoins a large sports airfield complex and a grassy southern slope with scrub, where species-rich meadow communities with a large proportion of legumes have been preserved.
This is one of the sites around Polička where less common and rare bumblebee species are still found: *Bombus sylvarum*, *B. ruderarius*, *B. humilis*, *B. subterraneus* (EN), *B. distinguendus* (EN), and *B. confusus* (CR).

The airport grounds and surrounding areas are unfortunately managed using conventional methods and there is no guarantee of sufficient food sources throughout the growing season, which is one of the main reasons why the aforementioned bumblebee species are declining in our countryside.
We have therefore decided to design the field margin as a supporting area with nectar-producing plants, whose plant composition will suit the specialisation and needs of the target bumblebee species.
In autumn 2022, a linear planting of 70 fruit trees of old varieties and 30 non-expansive shrub species (Cornelian cherry, common honeysuckle, elderberry) was carried out, 3m from the northern boundary of the plot. Approximately a third of the trees were underplanted with common comfrey. The planting
was realised by ČSOP Polička using funds from Sdružení Krajina.

In spring 2023, the area was intermittently sown with Czech legume varieties (red clover, bird's-foot trefoil, sainfoin, yellow clover, hairy vetch), with seeds of plants obtained from self-collection in the region (chicory, meadow cornflower, ground ivy, common rattle, meadow pea, common vetch, tufted vetch, common viper's-bugloss…) and other plants (phacelia, common sunflower). 

Areas identified in the previous year were left unsown to allow for the germination of nectar-rich weeds – dead-nettle and hemp-nettle, which are very important, even indispensable, for the target species.

In the first year, the area performed very well, and in addition to the more common bumblebee species (Bombus terrestris, B. lucorum, B. pratorum, B. hypnorum, B. lapidarius, B. pascuorum, B. hortorum, B. vestalis, B. bohemicus, B. rupestris, B. campestris), the target species were also present throughout the season (B. sylvarum, B. ruderarius, B. humilis, B. subterraneus, B. confusus, B. distinguendus).

In addition to bumblebees, the area hosts a wide spectrum of other animals with similar habitat requirements and concentrates dwindling agricultural landscape habitats.

Bumblebees PLUS - Bio-belt on Střitež Hill - Comparison - Photo Vít Cach

Biopassage on Střítežský kopec – Comparison
Photo: V. Cach

Our experiences

The Bumblebee PLUS Association connects a vast community of bumblebee keepers and is dedicated to protecting
bumblebees, habitat creation or regeneration, popularisation of insects and increasing awareness
publicly.
We cooperate with Czech and foreign experts (e.g. Bumblebee Conservation Trust)

The association's members are also involved in monitoring and breeding less common and rare bumblebee species,
which is a source of much information about these species.

In the vicinity of Polička, this project is one of several measures, which in cooperation with ČSOP Polička
We are undertaking the sowing of nectar-rich plants along the cycle path, and the turfing of approximately 7 hectares of the former field with various species.
a varied grass-herb mixture with a high proportion of legumes.

Intention

As part of the project, we will introduce phased mowing. Twice a year, two-thirds of the area will be mown,
longitudinal strips of 7000m², the remainder of the area will be left for the next cut.
Each cut leaves a different strip.

One third of the area will therefore only be mown during the first cut, the second third during both cuts, and
the last part only during the second mowing. The order of swaths will alternate over the years.

This method of care will ensure that the plants gradually recover and provide
sufficient food resources throughout the entire growing season.

The strip mower, removal, transport and disposal of organic matter will be handled by the local private
a farmer we occasionally work with. They have all the necessary equipment, but
also understanding the meaning of things and the desire to carry out this activity responsibly.

Further care carried out by members of the association will consist of reducing smaller areas of undesirable growth
plants (e.g. goosefoot or nettles) with a scythe or brushcutter, local disturbances for
maintenance of early successional flowering weeds and possible reseeding with other suitable plants.

The dates for mowing and other interventions will always be set by the members of the association, taking into account the condition of the vegetation.
at the site, the condition of the surrounding meadows, but also, for example, according to precipitation conditions during
seasons.

Project objectives

  • Introduction of management that ensures sufficient food supply on the biostrip throughout the growing season
    season and thus become a functional support area in areas where rare bumblebee species are found.
    This strip will also allow better passage through the agricultural landscape for these species.
  • Model concept of a biocorridor, which, thanks to the use of largely readily available co-
    plants and simple management easily replicable elsewhere, for example in
    in other areas where target bumblebee species occur.
  • For these species, nectar-producing areas sown with, for example, the massively supported phacelia are only
    unattractive and hosts of the Bombus genus are mostly abundant, generalist species, who support
    do not really need, or the publicly idolised domesticated honeybee.
  • With the established measure, we will be able to continue gathering insights into endangered species in the field.
    of bee species, which can further help protect these species

 

Biorefinery localisation
You can also find our biopond on the aerial map. It is already becoming a visible landscape feature.

Bumblebees PLUS - Bio-path to Strážský Hill

Bio-swamp on Střitež hill
Source: ČÚZK

Bumblebees PLUS - Bio-path on Střítež Hill - Mapy cz

Bioppás Na Střitežském kopci – Mapy cz

 

 

 

Project team

Bumblebees PLUS

  • Spolek Čmeláci PLUS z.s. is an entity belonging to non-profit legal persons in the Czech Republic.
  • It is an association founded for the promotion, protection and breeding of bumblebees.
  • The original independent group gained legal personality in 2021

 Objectives and scope of activities

  • Spreading information about bumblebees
  • Protection of the environment for bumblebees
  • Guides for garden and public space landscaping
  • Guides and support for breeders
  • Improving procedures, products for bumblebees, advice for manufacturers
  • Protection and rescue of individuals and entire nests
  • Cooperation with other non-profit groups and media
  • Environmental projects
  • Participation in proceedings under Act No. 114/1992 Coll. on the Protection of Nature and Landscape

More about the Čmeláci PLUS association

1. ZO ČSOP Polička, MOP Sekáči

The SEKÁČI section was established in 2014 by renaming ČOLCI, formerly Triturus in Latin, so it has been active in Polička since the 1980s.

We meet regularly every week in the Na Parkánech clubhouse. We try to organise a weekend event at least once a month, and the regular end-of-season event, which is everyone's favourite, is a trip at the end of the summer holidays.

Our aim is not rote learning, but gaining experience and a relationship with nature in a gentle way. We enjoy our time together, have fun, spend time outdoors and have extraordinary experiences.  

You can find out more about our organisation and events on our website  http://www.csoppolicka.cz/ a http://www.csoppolicka.cz/krouzek-mop

This is the core project team. However, more and more people are gradually getting involved in the project...

Bumblebees PLUS z.s.

Media presentation

https://www.idnes.cz/hobby/zahrada/policka-byvale-pole-raj-pro-cmelaky-hmyz-biopas-pudapromena.A240916_132149_hobby-zahrada_mce

https://ekolist.cz/cz/publicistika/priroda/jak-udelat-z-byvaleho-pole-raj-pro-cmelaky

https://www.policka.org/jitrenka/ 

On Facebook Bumblebees PLUS

Lecture on bumblebees at the SEVER Ecological Centre in Horní Maršov

Lecture at the University of Veterinary and Pharmaceutical Sciences in Brno

How did it start?

The foundations of the project were laid earlier

Have a look also at Photo gallery of tree planting on Střítežský kopec, the event took place on 06.11.2022

Take a look at a couple of now historical photographs and compare them with the current state of the wildlife corridor.

Bumblebees PLUS - Tree planting on Střítež hill - Photo 1 ZO ČSOP Polička 6 11 2022 (2)

Tree planting on Střítež hill
Photo: 1 ZO ČSOP Polička (11/06/2022)

Bumblebees PLUS - Tree planting on Střítež hill - Photo 1 ZO ČSOP Polička 6 11 2022 (3)

Tree planting on Střítež hill
Photo: 1 ZO ČSOP Polička (11/06/2022)

Bumblebees PLUS - Tree planting on Střítež hill - Photo 1 ZO ČSOP Polička 6 11 2022 (1)

Tree planting on Střítež hill
Photo: 1 ZO ČSOP Polička (11/06/2022)

Bumblebees PLUS - Tree planting on Střítež hill - Photo 1 ZO ČSOP Polička 6 11 2022 (1)

Tree planting on Střítež hill
Photo: 1 ZO ČSOP Polička (11/06/2022)

Bumblebees PLUS - 1. ZO ČSOP Polička

1. ZO ČSOP Polička

Calendar of events in 2024


Planned events in 2024

<DOPLNIT>

ROK 2024 – Blog

Summer 2024

Biostrip preparation

5/2024 Walk through the nature strip

The bio-corridor is full of flowers and insects. I very much enjoy spending time there with the children. They are interested and listen attentively….

 

Bumblebees PLUS - Walk along the biotope - Photo Vít Cach (1)

A walk with the children on the nature strip
Photo: V. Cach

Bumblebees PLUS - Walk along the biotope - Photo Vít Cach (2)

A walk with the children on the nature strip
Photo: V. Cach

26/05/2024

This morning on the hill, we met Jaromír, Luděk, and Ilona. Ilona wrote about it very nicely on her Facebook.

„I'd go to the ends of the earth for bumblebees, I'd go barefoot...

A love of nature plus a deep bombusophilia knows no bounds. Vít Cach has provided rare bumblebees in the Žďár Hills region with a proper feast in the form of a hectare-wide strip, to which a multitude of pollinators flock from far and wide. Luděk Šulda and another bumblebee expert, Jaromír Čížek, couldn't miss such a spectacle.

It was a pleasant meeting with friends, I am already looking forward to the next one.
<DOPLNIT>

V.

 

Bumblebees PLUS - Visit to Střítež Hill - Ilona Trinerová 26 05 2024 (7)

A visit to Střítež Hill
Photo: I. Trinerová (26/05/2024)

Bumblebees PLUS - Visit to Střítežský Hill - Ilona Trinerová 26 05 2024 (5)

A visit to Střítež Hill
Photo: I. Trinerová (26/05/2024)

A visit to Střítež Hill
Photo: I. Trinerová (26/05/2024)

Bumblebees PLUS - Visit to Střítežský hill - Ilona Trinerová 26 05 2024 (1)

A visit to Střítež Hill
Photo: I. Trinerová (26/05/2024)

23/8/2024

Today a report came out about our project in Ecolist

You can read the full article here: How to turn a former field into a paradise for bumblebees – Ekolist.cz

 

V.

9/2024

You can also read about our project in Jitřenka magazine!

Biopás near Polička

According to some research, the buzzing of pollinators is calming and stress-relieving. If you'd like to try out whether this is the case, you can visit the bio-belt on Střítež hill, below the airport, not far from the Střítež road.
In 2022, we were approached by the landowners with an offer to utilise the area in an environmentally beneficial way. A concept for a bio-corridor was developed to support less common and endangered species of bumblebees found in our region. We planted an avenue of fruit trees and shrubs and sowed various types of clover.,
left space for nectar-producing wildflowers such as dead-nettles and hemp-nettles. From resources from the Biodiversity Protection Programme of the Czech Union for Nature Conservation, a phased mowing is carried out here, where a third of the area always remains unmown. The biostrip, which connects to the valuable, species-rich meadows below the airport, thus serves as a support area for creatures harmed by fertilisation and widespread mowing of meadows.

As well as a variety of other animals, here you can see up to fourteen species of bumblebees. These include not only more common species but also rarer ones – garden bumblebees, buff-tailed bumblebees, and field bumblebees, and even endangered and critically endangered species such as the shrill carder bee, the red-shanked carder bee, the broken-banded bumblebee, and the scarce bumblebee.

An area with such occurrences is a rarity here and most likely in Europe too. We are happy to provide enthusiasts with more detailed information and ask visitors to be considerate of the greenery.

Vít Cach, Bumblebee PLUS, voluntary association, 1st Local Organisation of the Czech Union for Nature Conservation, Polička

https://www.policka.org/soubor/jitrenky/1285

Polička Town – Morning Star

Bumblebees PLUS - Dawn

Bumblebees PLUS - Morning Star 2

9/2024

Today we had visitors from the iDNES editorial office on the hill. They are preparing an article about us.

The editor was very interested, so we'll see what makes it into the article.

V.

25/9/2024

An article is being published on iDnes today. We are very pleased that the media are interested in our project and are helping to spread awareness about how biodiversity can be effectively supported.

The full article can be read on iDNES

You will also find a post about him on Facebook Bumblebees PLUS

V.

Bumblebees PLUS - report on iDNES

Bumblebees PLUS – Report in iDNES

30/10/2024

The season is slowly drawing to a close, it's time for reflection.

Here are at least a few observations on the functioning of the bumblebee biostrips this year:

Although the biodiverse strip in the photos looks idyllic, it requires a lot of hard work from many people.


It needs to be mown..

Without this, the plants would have finished flowering in July and wouldn't have put on much of a show in the second half of the season. We are very pleased to have received financial support from the Czech Union for Nature Conservation this year through the Biodiversity Protection programme. Mowing took place for the first time at the end of June and for the second time on 1 October. We always left a third of the area unmowed so that pollinators would not lose their food sources all at once, which is one of the main reasons for their decline.

2. Early preparation is necessary in order to cut the biotope.

The area had to be prepared with volunteers from ČSOP Polička in the spring – by raking and collecting stones by hand, and also by sowing more nectar-producing plants.

Does it all make sense?

Certainly. In addition to the most common species such as the buff-tailed bumblebee, the early bumblebee, the red-tailed bumblebee, the meadow bumblebee, the heather bumblebee, the field bumblebee, and the garden bumblebee, you can also see bumblebees here that you won't encounter everywhere anymore – the tree bumblebee, the varied bumblebee, and the field cuckoo bumblebee, as well as species that are endangered and critically endangered – the white-tailed bumblebee, the mosaic bumblebee, the dwarf bumblebee, and the bilberry bumblebee.

4. Why are they here specifically?

Because here they will find their favourite plants. Especially the last-mentioned bumblebee species are quite specialised. They need their dead-nettles and clover, and unlike common, generalist bumblebees, they won't fly into towns and villages to garden perennials when their food sources dwindle. Fertilising and widespread mowing of meadows, and the use of pesticides harms them. And perhaps even more than pesticides that kill insects, it is those that easily kill field weeds – dead-nettles and hemp-nettles.
The bumblebees on the biodiverse strip won't get any of that.


5. So, what's growing there for the bumblebees?

Red and white dead-nettle, field and hairy hemp-nettle, comfrey, red clover, self-heal, common and hairy vetch, bird's-foot trefoil, common sainfoin, meadow pea, common kidney vetch, as well as other plants. Despite its popularity, only about 3 species of bumblebees (early, garden, and heath bumblebees) effectively utilise phacelia. Other species only visit it as part of so-called 'minoring' (scouting peripheral resources), or not at all. We do not yet know if this is due to phacelia itself, or because it is frequently visited by honeybees.

6. What next?

Next year, we'd like to host guided tours on and around the biotope where you can learn much more!

V.

 

 

 

Types of bumblebees you might encounter here

The following species were observed on the biowall this year bumblebees:

  • Buff-tailed bumblebee (Bombus terrestris)
  • White-tailed bumblebee (Bombus lucorum)
  • red-tailed bumblebee (Bombus lapidarius)
  • Early bumblebee ( Bombus pratorum )
  • Tree bumblebee
  • Common carder bee (Bombus pascuorum)
  • Buff-tailed bumblebee (B. hortorum)
  • Shrill carder bee (Bombus sylvarum)
  • Brown-banded carder bee (B. ruderarius)
  • Buff-tailed bumblebee (B. humilis)
  • Buff-tailed bumblebee (B. subterraneus)
  • Buff-tailed bumblebee (B. distinguendus)
  • False bumblebee (B. confusus)
  • Heath bumblebee (B. ruderatus)

And also these kinds bumblebees:

  • Vestal cuckoo bumblebee (Bombus vestalis)
  • Czech bumblebee
  • Cuckoo bumblebee (B. rupestris)
  • Field bumblebee (B. campestris)

If you want to get to know the basic types of bumblebees in the Czech Republic, take a look at this simple catalogue

Bumblebees PLUS - buff-tailed bumblebee (Bombus terrestris) - queen - Photo Hana Kříženecká

Buff-tailed bumblebee (Bombus terrestris) – queen
Photo: H. Kříženecká

Bumblebees PLUS - White-tailed bumblebee (Bombus lucorum) - Worker - Photo Hana Kříženecká

White-tailed bumblebee (Bombus lucorum) - worker - Photo: H. Kříženecká

Bumblebees PLUS - red-tailed bumblebee(Bombus lapidarius) worker on a butterfly bush - Ondrej Hercog 23/7/2021

red-tailed bumblebee (Bombus lapidarius) worker on a butterfly bush
Photo: O. Hercog 23/7/2021

Bumblebees PLUS - Early Bumblebee (Bombus pratorum) queen

Early bumblebee ( Bombus pratorum ) – queen
Photo by H. Kříženecká

Bumblebees PLUS - Tree Bumblebee (Bombus hypnorum)

Bumblebees PLUS – Tree bumblebee (Bombus hypnorum)
Photo H. Kříženecká

Bumblebees PLUS - Common carder bee(Bombus pascuorum) - queen - Photo Hana Kříženecká

Common carder bee (Bombus pascuorum) – queen
Photo: H. Kříženecká

Bumblebees PLUS - Purple-bordered bee - Bombus distinguendus - Photo Vít Cach

Great yellow bumblebee
Photo: V. Cach

Bumblebees PLUS - Buff-tailed Bumblebee - Bombus subterraneus - Photo Vít Cach

Buff-tailed bumblebee ( Bombus terrestris)
Photo: V. Cach

Bumblebees PLUS - Brown-banded carder bee - Bombus humilis - Photo Vít Cach

Brown banded carder bee
Photo: V. Cach

Bumblebees PLUS - False Bumblebee - Bombus confusus - Photo Vít Cach

Bumblebee confusus
Photo: V. Cach

Nectar-producing plants on the field margin

  • Red clover
  • Common Bird's-foot Trefoil
  • Sainfoin 
  • Kidney vetch
  • Hairy vetch, chicory
  • Common knapweed
  • Bugleweed 
  • Field scabious 
  • Meadow vetchling
  • Tufted vetch
  • Common vetch
  • Common Viper's-bugloss 
  • Tansy-leaved phacelia 
  • Common sunflower
Bumblebees PLUS - Red Clover - Photo Wiki

Red clover
Photo: Wiki

Bumblebees PLUS - Common Bird's-foot Trefoil - Lotus corniculatus - Photo Wiki

Common Bird's-foot Trefoil
Photo: Wiki

Bumblebees PLUS - Sainfoin - Onobrychis viciifolia - Photo Wiki

Sainfoin
Photo: Wiki

Bumblebees PLUS - Common Kidney Vetch (Anthyllis vulneraria) - Bank Garden in Radlice - Photo Ondřej Hercog 06 06 2024 (4)

Kidney vetch (Anthyllis vulneraria) – Bank Garden in Radlice
Photo: O. Hercog (06/06/2024)

Bumblebees PLUS - Hairy Vetch - Photo Wiki

Fuzzy, shaggy
Photo: Wiki