12 biearter forsvunnet fra Norge

Posted on by Beetlebee

Flekkjordbia, Lasioglossum sexmaculatum, ble sist funnet i Norge i Rogaland på 1930-tallet. Foto: Arnstein Staverløkk.

Omfattende kartlegging har økt kunnskapen om bier og humler betraktelig i løpet av de siste 10 årene. Flere arter som tidligere ikke har vært registrert i Norge har kommet med på artskartet. Samtidig har så mange som tolv biearter forsvunnet.

I løpet av de siste ti årene er mer enn 20 nye biearter påvist i Norge som følge av omfattende kartlegging. Totalt har vi nå registrert 206 ulike biearter i Norge. Disse inkluderer tambia, Apis melifera, 35 humlearter og 170 andre arter av villbier. Det som bekymrer er imidlertid at på tross av dette kunnskapsløftet, er fortsatt 12 av artene våre ikke gjenfunnet. Det betyr at disse med stor sannsynlighet har forsvunnet for godt.

I 2008 gikk NINA ut i Aftenposten med den dystre nyheten om at 14 villbier og ei humle kan være utdødd fra Norge. Nå viser det seg at to av disse artene opprinnelig var feilbestemt, mens slåttehumla svært gledelig ble gjenfunnet i 2010 etter nærmere 60 års fravær i Norge.

De siste fem årene har vi drevet omfattende kartlegging av bier og humler i Norge, blant annet gjennom Artsdatabankens Artsprosjektet, noe som har medført at datagrunnlaget og sikkerheten i kunnskapen har økt betydelig. Likevel mangler nyere funn av hele 12 arter. Ytterligere 7 arter er kun kjent fra en enkelt lokalitet. Gjennom oppfølging av handlingsplaner har det også kommet fram at andre av våre mest spesialiserte biearter, som rødknappsandbia, Andrena hattorfiana, går en svært usikkert framtid i møte. Denne finnes nå kun på tre steder hvorav to av lokalitetene har kritisk lave bestand. Når mangfoldet av bier reduseres, kan dette ramme både matproduksjon og andre arter som er avhengig av biene.

rødknappsandbie

Rødknappsandbie, Andrena hattorfiana, finnes i dag bare på tre steder i Norge. Bestandene ved Grimstad og i Halden er kritisk små, men bestanden ved Sessvollmoen fortsatt ser ut til å klare seg rimelig bra. Foto: Agne Ødegaard.

 

Biene mangler mat og hjem

Det er mange årsaker til at biene forsvinner. Det er først og fremst snakk om de store landskapsendringene som har funnet sted de siste 100 årene med intensivering av jordbruket på den ene siden og gjengroing av landbruksarealer på den andre siden. Dette har ført til at kvaliteten på både reirområder og matkilder (dvs blomsterenger med bievennlige planter) har blitt redusert. I tillegg har vi liten kunnskap om hvordan kjemiske miljøgifter påvirker villbiene. Når biene sliter, blir de også mer utsatt for klimaendringer, parasitter og sykdommer som til slutt kan ta knekken på bestandene.

Slik kan du hjelpe biene

Vi ser i dag økt fokus på viktigheten av bier og humler, og mange gode initiativ er satt i gang for å bevare arter og øke bestander. Og faktisk er det slik at mange av disse artene trives godt i hagen. Med litt tilrettelegging kan du bedre forholdene for mange av dem.

Ta vare på, eller plant ut viktige bieplanter som for eksempel erteplanter, kurvplanter og blåklokker. Og det er viktig å bevare seljetrærne som blomstrer om våren. I tillegg bør du unngå å sprøyte med insektgifter. Gift dreper nemlig ikke bare skadedyrene, men også nyttedyrene. Du kan også legge til rette for å lage reirplasser både gjennom å sette ut biehoteller, humlekasser og å sette av sørvendte, solrike tørrbakker med sandjord der de markboende biene kan hekke. Og hvorfor ikke sette av halve gressplenen til blomstereng? Det er både vakkert og se på og mindre arbeid å holde i orden.

645 thoughts on “12 biearter forsvunnet fra Norge”

  1. Pingback: Humlestafetten |

  2. נערו הליווי בירושלים מטופחות ונאות.

    נערות ליווי בירושלים מאגר הנערות הליווי המוביל בישראל.

    Reply

  3. Hey I am so thrilled I found your site, I really found you by error, while I was looking on Google for
    something else, Anyways I am here now and would just like to say
    cheers for a fantastic post and a all round exciting blog (I also love the theme/design), I
    don’t have time to read through it all at the moment but I have book-marked it and
    also included your RSS feeds, so when I have time I will be back to read a great deal more,
    Please do keep up the fantastic work.

    Reply

  5. I seriously love your website.. Excellent colors &
    theme. Did you build this website yourself? Please reply back as I’m wanting to create my very own blog
    and would love to find out where you got this from or exactly what the theme is
    named. Thank you!

    Reply

  6. What does the service charge price cowl? Reference to any
    particular service or commerce mark isn’t managed by Sedo nor does
    it represent or indicate its affiliation, endorsement or
    advice. This webpage was generated by the area proprietor utilizing Sedo Domain Parking.

    Disclaimer: Sedo maintains no relationship with third social gathering advertisers.
    Then attempt Cowordle! The sport might be performed with a web-based buddy by way of an invite hyperlink or a random opponent.

    Why don’t you attempt considering of phrases to
    correspond to a class? Players are given ten hints to guess the phrases.

    What are onomatopoeia phrases that begin with c?
    It usually takes a number of hours for Whois information to replace, and totally different
    registrars are quicker than others. Once the switch is finished (this may fluctuate per area since some registrars approve transfers solely
    after 5 days) you’ll be able to handle the DNS of
    the area through your Buyer Control Panel.

    Reply

  7. Tesla has already obtained a barrage of criticism
    through the years for its autopilot system, which permits drivers to take their arms off the wheel
    in sure circumstances – and which might not be nearly as
    good at avoiding harmful conditions as the corporate claims.

    The corporate didn’t appear to promote the video-video games-on-the-go part,
    but when it was put in in error, Elon Musk & Co.
    have had loads of time to rectify it, which they haven’t.

    Operated by TSG Interactive Gaming Europe Limited, an organization registered in Malta underneath No.
    C54266, with registered workplace at Spinola Park,
    Level 2, Triq Mikiel Ang Borg, St Julians SPK 1000, Malta.
    You may play along with your Facebook mates or with different gamers through Random Match.
    Apart from enjoying along with your Facebook pals, you possibly
    can play it with a stranger by means of Smart Match.
    Play Stop Online, described as a “multiplayer battle of phrases recreation.” Its design might be eye-catching and may be downloaded on Steam.

    Reply

  8. It іѕ the best time to mɑke some plaans foｒ the future and it
    is tіme too bе happy. I havе rеad thіs post and
    if Ӏ coᥙld I want to sᥙggest you some іnteresting tһings or suggestions.

    Maaybe уou couhld writе next articcles referring tⲟ tһis article.
    I desire tto read evewn mⲟre thingѕ about іt!

    Hеre is mү site aplikasi download drakor sub indo

    Reply

  9. Gdy zapomnisz hasła do zablokowania ekranu, jeśli nie wprowadzisz prawidłowego hasła, odblokowanie i uzyskanie dostępu będzie trudne. Jeśli okaże się, że Twój chłopak / dziewczyna jest podejrzana, być może pomyślałeś o włamaniu się do jego telefonu Samsung, aby uzyskać więcej dowodów. Tutaj zapewnimy Ci najlepsze rozwiązanie, jak złamać hasło telefonu komórkowego Samsung.

    Reply

  17. I was wondering if you ever considered changing the structure of your website?
    Its very well written; I love what youve got to say. But maybe you
    could a little more in the way of content so people could connect with it better.
    Youve got an awful lot of text for only having one or two images.

    Maybe you could space it out better?

    Reply

  44. cost of generic propecia without prescription: home – cost generic propecia prices

    Reply

  318. Hello.

    This post was created with XRumer 23 StrongAI.

    Good luck :)

    Reply

  325. Hello!

    This post was created with XRumer 23 StrongAI.

    Good luck :)

    Reply

  370. Von Willebrand factor, angiodysplasia and angiogenesis cheap cialis from india With a wave of Physician s hand, the entire formation slowly what is the highest dose of furosemide you can take approached forward, and the rain of arrows gradually extended forward and landed on the head if im on blood pressure medication will i be induced of the Annas heavy infantry

    Reply

  378. Very nice post. I just stumbled upon your blog and wanted to
    say that I’ve truly enjoyed browsing your blog posts.
    In any case I will be subscribing to your feed and I hope you
    write again very soon!

    Reply

  384. Vehicles fluctuate in measurement, operating from 1:87 (generally the older vehicles)
    to 1:64 in scale; however all of them run on monitor of roughly
    the identical width, and are generically known as HO slot automobiles.

    HO scale, a generalized size, initially 1:76-1:87,
    now usually nearer to 1:64 scale. Thus far, there may be little organized competitors
    in 1:43, but the scale is gaining some acceptance amongst adult hobbyists for its affordability and average house requirements.
    Though there is HO racing on commercial and store-tracks, most likely most HO racing occurs
    on residence racetracks. 1:32 scale or 1/32, automobiles are smaller
    and extra suited to home-sized race courses however they are
    additionally widely raced on commercial tracks, in interest retailers or in clubs.
    The Historical past of the Slot Automobile A properly-illustrated history of the slot car pastime by Dennis David.
    Slot automotive racing (additionally referred to as slotcar racing or slot racing) is
    the aggressive hobby of racing with powered miniature autos (or different automobiles) which are guided by grooves or slots in the monitor on which they run.

    Reply

  392. Now, after greater than 30 years, one company title change and
    several other operating systems later, Microsoft is on high of the pc
    world. Later, you may will see how Bing stacks up in opposition to Google
    search in a aspect-by-facet comparison. So as to compete
    with Google more actively, Microsoft decided to replace its Dwell Search and MSN Search
    products with a brand new search providing known as Bing.

    Reply

  460. Wie het laatst lacht, lacht het best pepe88 – Derjenige, der zuletzt lacht, hat die endgültige Freude oder den endgültigen Erfolg.

    Reply

  463. Je moet de huid niet verkopen voordat de beer geschoten is pepe88 – Nicht über einen Gewinn sprechen, bevor er sicher ist.

    Reply

  469. I am thoroughly impressed by this article. The depth of your research and the quality of your writing make this a truly exceptional piece. Your ability to convey complex ideas with such clarity and precision is admirable. This is definitely one of the best articles I’ve read. Sincerely, Pasang Iklan Properti Gratis

    Reply

  472. cipung138
    Oh my goodness! Amazing article dude! Thank you so much, However I am experiencing problems with
    your RSS. I don’t understand the reason why I cannot join it.

    Is there anybody having identical RSS issues? Anyone that knows the answer can you kindly respond?

    Thanx!!

    Reply

  473. bosku777 bosku777 bosku777 bosku777
    Heya i’m for the first time here. I came across
    this board and I find It really useful & it helped me out
    a lot. I hope to give something back and aid others like you aided me.

    Reply

  476. pgbet pgbet pgbet pgbet
    Hey I know this is off topic but I was wondering if you knew of
    any widgets I could add to my blog that automatically tweet my
    newest twitter updates. I’ve been looking for a
    plug-in like this for quite some time and was hoping
    maybe you would have some experience with something like this.
    Please let me know if you run into anything. I truly enjoy reading your blog and I look forward to your
    new updates.

    Reply

  478. zefoy
    Hello, i think that i saw you visited my blog so
    i came to “return the favor”.I am attempting to find things to enhance my
    website!I suppose its ok to use a few of your ideas!!

    Reply

  483. birutoto birutoto birutoto birutoto
    Simply wish to say your article is as amazing. The clarity for your post is
    simply great and i could assume you’re an expert on this subject.
    Fine together with your permission allow me to
    grasp your feed to keep updated with drawing close post.

    Thank you one million and please keep up the enjoyable work.

    Reply

  486. manhwalist
    hey there and thank you for your info – I have definitely
    picked up anything new from right here. I did however expertise several
    technical points using this website, as I experienced to reload the web site a lot of times previous to
    I could get it to load correctly. I had been wondering if your hosting is OK?
    Not that I’m complaining, but sluggish loading instances times will often affect your placement in google and can damage your high-quality score if ads and marketing with Adwords.
    Anyway I am adding this RSS to my e-mail and could look out for a lot more
    of your respective intriguing content. Make sure you update
    this again soon.

    Reply

  488. yandex semua film 2024
    Thanks for the good writeup. It in reality used to be
    a amusement account it. Look advanced to far delivered agreeable from you!

    By the way, how can we keep up a correspondence?

    Reply

  490. taro togel taro togel taro togel taro
    togel
    Hi are using WordPress for your site platform? I’m new to the blog world but I’m trying to get started and create my own. Do you require any html coding knowledge to make your
    own blog? Any help would be really appreciated!

    Reply

  491. presensi untan presensi untan presensi
    untan
    Hello There. I found your blog using msn. This is an extremely well
    written article. I’ll make sure to bookmark it and return to read more of your
    useful info. Thanks for the post. I’ll certainly return.

    Reply

  492. yandex semua yandex semua yandex
    semua
    Having read this I believed it was really enlightening.

    I appreciate you spending some time and energy to put this informative article together.
    I once again find myself spending a significant amount of time both reading and leaving comments.
    But so what, it was still worthwhile!

    Reply

  495. togelup togelup
    togelup togelup
    This is a topic that’s close to my heart… Best wishes!
    Where are your contact details though?

    Reply

  496. It is a pleasure to read this weblog, thanks to its up-to-date information and interesting posts. Look into my web page UY4 for some really good points and find out more about Thai-Massage.

    Reply

  497. rajawd777
    I blog frequently and I seriously thank you for your content.
    This article has really peaked my interest. I’m going to bookmark
    your website and keep checking for new details about once a week.
    I subscribed to your RSS feed as well.

    Reply

  499. jago88 jago88 jago88
    Does your blog have a contact page? I’m having problems
    locating it but, I’d like to send you an email. I’ve got some creative ideas for your blog you might be
    interested in hearing. Either way, great website and
    I look forward to seeing it improve over time.

    Reply

  501. Corrosion will be combated through the use of copper or stainless steel pipe that are much less vulnerable to corrosion, or through the use of dry nitrogen fuel to pressurize the system, somewhat than air.

    Reply

  503. It’s as a result of agents that cannot consume out of wages (which have stagnated) can not borrow themselves out of the disaster, and the federal authorities, the just one that can, will not do it for political causes (to maintain workers calls for in line).

    Reply

  506. Nevertheless, earlier than you have interaction in this kind of enterprise, it’s best to know whether or not folks can be attracted and purchase your merchandise, perceive the enterprise itself in addition to the essential bookkeeping, managing, advertising, and buying.

    Reply

  507. It’s simple to neglect this is an army city, home to the Coldstream Guards and the Family Cavalry Regiment, with grids of little terrace houses and a garrison church, and an odd launch of strain as soon as away from the royal forcefield.

    Reply

  515. Corbould played a key function in consolidating the bottom under MIM, investing his own funds and persuading the state authorities to extend the railway from Duchess.

    Reply

  519. The runners cross the Verrazzano-Narrows Bridge into mostly-flat Brooklyn the place for the following 12 miles (19.Three km) they cross via Bay Ridge, Sunset Park, Park Slope, Fort Greene, Bedford-Stuyvesant, and Williamsburg.

    Reply

  524. If leaving lovely home windows naked is just not an option, they are often dressed in additional understated treatments that complement the structure.

    Reply

  525. And historic mansions often have many features that can save brides cash and stress: minimal decorating necessities (they’re lovely already), all-in-one catering providers and an on-site ceremony option.

    Reply

  526. Due to its high price and short durability, the handicraft industry faced many problems as people started to shift towards cheap and durable British products.

    Reply

  528. Hurrah, that’s what I was seeking for, what a stuff! present here at
    this webpage, thanks admin of this web site.

    Reply

  529. Via a phenomenon identified because the stroboscopic impact, a correctly aimed timing light will indicate the place the Number one piston is in its up-and-down travel when the spark fires.

    Reply

  531. This is an absolutely outstanding article! Your clear, insightful, and detailed writing is a testament to your expertise. Every paragraph offers valuable information, and your ability to explain complex topics so effectively is impressive. Thank you for such a high-quality read. Regards, Pasang Iklan Properti Gratis

    Reply

  532. Greate post. Keep writing such kind of information on your blog.

    Im really impressed by it.
    Hi there, You have done a fantastic job. I’ll definitely digg it
    and individually recommend to my friends. I am sure they’ll
    be benefited from this site.

    Reply

  540. Bacaan ini benar-benar menunjukkan keahlian Anda dalam menjelaskan topik yang rumit dengan cara yang sangat jelas dan mendalam. Setiap bagian memberikan wawasan baru yang sangat berguna. Terima kasih atas artikel yang sangat informatif ini. Salam sukses, Pasang Iklan Properti Gratis

    Reply

  550. Karya tulis ini adalah contoh yang sempurna dari artikel yang informatif dan menggugah pikiran. Penjelasan yang Anda berikan sangat mendalam dan mudah dipahami, menjadikannya sumber informasi yang sangat berguna. Terima kasih telah menyajikan artikel yang begitu bermanfaat. Salam hangat, Pasang Iklan Properti Gratis

    Reply

  585. In line with a article from 2010, Lee would signal a business contract with Choi Young-geun and Dreamers Leisure for the publishing of a new comic to be titled Soul Grasper.

    Reply

  592. Within the semi-ultimate against Myanmar, Chhetri scored the only objective in a 1-0 victory after being assisted by Bhaichung Bhutia to see India by means of to the final.

    Reply

  604. Setiap paragraf dalam artikel ini menunjukkan kecermatan dan dedikasi Anda dalam menyajikan informasi yang berkualitas. Saya sangat mengapresiasi bagaimana Anda menguraikan topik dengan sangat mendetail dan menarik. Ini benar-benar bacaan yang luar biasa. Terima kasih telah berbagi pengetahuan berharga. Salamat, Pasang Iklan Properti Gratis

    Reply

  608. We stumbled over here coming from a different web address and thought I might as well check things out.
    I like what I see so now i’m following you. Look forward to exploring your web page yet again.

    Reply

  612. Aurora, IL, USA at room temperature for 15 min, rinsed in PBS, and sequentially infiltrated with sucrose 10 for 30 min, 15 for 30 min, 1 1 mix 15 sucrose O priligy and viagra combination These data provide a starting point for further studies to uncover the underlying mechanisms of Ezh2 mediated haematopoiesis and probably leukaemogenesis

    Reply

  623. Amanda, 50, abruptly left the BBC show citing ‘personal issues’ and hasn’t been seen on display screen since, even quitting social media last month in the wake of her former dance associate’s sacking.

    Reply

  631. Viagra * Cialis * Levitra

    All the products you are looking suitable are currently convenient for 1+1.

    4 more tablets of identical of the following services: Viagra * Cialis * Levitra

    https://pxman.net

    Reply

Leave a Reply

Your email address will not be published. Required fields are marked *