Barometro della vita: costi e metodi per salvare le specie in via d’estinzione

di Paola P. 34

rana dagli occhi rossiPer la prima volta gli scienziati hanno effettuato una stima di quanto costerebbe conoscere lo stato di conservazione di milioni di specie, alcune delle quali devono ancora essere identificate. Il prezzo è 60 milioni di dollari, secondo un team di scienziati, compresi quelli dell’IUCN e del Conservation International, che hanno presentato lo studio sulla rivista Science in un articolo intitolato “Il Barometro della Vita”.

Le nostre conoscenze sulle specie e sui tassi di estinzione è ancora scarsa, e questo ha conseguenze negative per il nostro ambiente e l’economia. Ampliando l’attuale Lista Rossa IUCN delle specie minacciate per includere fino a circa 160.000 specie ben scelte, avremmo un buon barometro per influenzare le decisioni a livello globale

dice Simon Stuart, presidente della IUCN’s Species Survival Commission. Ad oggi, quasi 48.000 specie sono state valutate nella Lista Rossa IUCN, che costa circa 4 milioni di dollari ogni anno. La maggior parte di questo lavoro è svolto da migliaia di volontari in tutto il mondo.

A livello globale, solo 1,9 milioni di specie sono state identificate, anche se il numero stimato di specie si pensa possa essere tra i 10 e i 20 milioni. Mentre la Lista Rossa contiene valutazioni di tutte le specie di mammiferi, uccelli, anfibi, coralli, granchi d’acqua dolce e conifere, la stragrande maggioranza delle specie del mondo sono scarsamente rappresentate, anche molte piante, invertebrati, rettili, pesci e funghi.

Più impariamo sugli indicatori delle specie (che possono fornire informazioni sulla qualità dell’ambiente che li circonda), tanto più sappiamo sullo stato dell’ambiente di vita che ci sostiene tutti. Sulle specie minacciate, in particolare, devono essere consentite mirate decisioni politiche per migliorarne la conservazione

spiega Edward O. Wilson, biologo del Museo di Zoologia Comparata presso l’Università di Harvard. Tali informazioni serviranno inoltre per aiutare i Governi e le comunità a progettare risposte adeguate al cambiamento climatico e ad altre grandi sfide pressanti sulla conservazione, hanno continuato i ricercatori.

Un’altra sfida importante è quella di potenziare le capacità scientifiche per eseguire le valutazioni della Lista Rossa nelle zone ricche di biodiversità. Il mondo in via di sviluppo ospita la maggior parte delle specie del pianeta, ma le risorse umane per il controllo di questa ricchezza naturale sono gravemente carenti

dice Jon Paul Rodriguez, un ecologo presso l’Istituto Scientifico per la Ong venezuelana che aiuta la commissione Iucn.

Fonte: [Sciencedaily]

Commenti (34)

  1. I just want to mention I’m newbie to blogging and certainly loved your web page. Very likely I’m going to bookmark your blog post . You really have outstanding posts. Regards for sharing your blog.

  2. Loving the info on this internet site , you have done outstanding job on the articles .

    http://partscatalog.sellload.com/

  3. I simply desired to say thanks once more. I do not know what I could possibly have worked on without the smart ideas provided by you over such subject matter. Previously it was an absolute scary difficulty for me personally, but being able to view the skilled manner you dealt with it took me to weep for happiness. Now i am happier for your information and even sincerely hope you know what an amazing job that you are undertaking teaching people through your blog post. I know that you haven’t got to know all of us.

  4. wonderful issues altogether, you just won a emblem new reader. What would you recommend in regards to your post that you simply made some days ago? Any certain?

  5. Surprisingly informative points you have stated, thanks so much for adding.

    http://www.shortmyurls.com/emeryeps-grenadines-seo-comment

  6. Divorcemind.com is a online divorce resource for divorce attorney, attornies and lawyers. You will find the best divorce information online. Divorce Mind will make your divorce or separation a quick, convenient and private.

    http://www.shortmyurls.com/divorcemind-divorces-comment

  7. Hello! I ran into your site utterly by mistake, and am really glad I did! This is very interesting, and I can tell you have spent some time studying this. Thanks!

    http://www.repairloader.net/

  8. Divorcemind.com is a online divorce resource for divorce attorney, attornies and lawyers. You will find the best divorce information online. Divorce Mind will make your divorce or separation a quick, convenient and private.

    http://www.shortmyurls.com/divorcemind-divorces

  9. SacramentoCremation.us is one of the leading crematorium services in the Sacramento area. Feel free to contact us regarding any questions on Sacramento Cremation Services or concerns you might have. Our staff will respond to you as soon as possible.

    http://www.shortmyurls.com/sacramentocremation-comment-general

  10. SacramentoCremation.us is one of the leading crematorium services in the Sacramento area. Feel free to contact us regarding any questions on Sacramento Cremation Services or concerns you might have. Our staff will respond to you as soon as possible.

    http://www.shortmyurls.com/sacramentocremation-services-comment-gen

  11. Between me and my husband we’ve owned more MP3 players over the years than I can count, including Sansas, iRivers, iPods (classic & touch), the Ibiza Rhapsody, etc. But, the last few years I’ve settled down to one line of players. Why? Because I was happy to discover how well-designed and fun to use the underappreciated (and widely mocked) Zunes are.

  12. IMSC SEO is a Singapore SEO Company. They provide comprehensive Singapore SEO services to help SG businesses to gain traffic from search engine. Their SEO agency has many years of experiences working with overseas companies on more competitive grounds. They are the best seo company in Singapore you can find. Their SEO expert and consultant understand exactly what search engine optimization your company need to gain search engine traffic.

    http://www.shortmyurls.com/imsc-services-comment-exact

  13. IMSC SEO is a Singapore SEO Company. They provide comprehensive Singapore SEO services to help SG businesses to gain traffic from search engine. Their SEO agency has many years of experiences working with overseas companies on more competitive grounds. They are the best seo company in Singapore you can find. Their SEO expert and consultant understand exactly what search engine optimization your company need to gain search engine traffic.

    http://www.shortmyurls.com/imsc-home-comment-general

  14. It can be practically impossible to see well-educated men and women on this theme, nevertheless you appear like you realize those things you’re covering! With Thanks

    http://www.mensbroad.us

  15. Truly compelling details you have said, thanks for posting.

    http://www.vivaeldorado.com

  16. I was more than happy to find this page. I wanted to thank you for ones time just for this fantastic read!! I definitely enjoyed every part of it and i also have you book marked to check out new things on your website.

    http://www.eitiperu.info

  17. Hi there, just became aware about your blog through The Big G, and have found that it is genuinely entertaining. I’ll take pleasure in if you carry on this post.

    http://www.kungfupanda3film.com

  18. This is ideal time to have some goals for the extended term. I’ve digested this write-up and if I can possibly, I want to suggest to you you couple of enlightening instruction.

    http://www.fin4founders.com

  19. I simply intend to reveal to you that I am new to putting up a blog and incredibly adored your article. More than likely I am likely to save your blog post . You literally have extraordinary article information. Appreciate it for telling with us your very own domain write-up

    http://www.portlandseo1.info

  20. Zune and iPod: Most people compare the Zune to the Touch, but after seeing how slim and surprisingly small and light it is, I consider it to be a rather unique hybrid that combines qualities of both the Touch and the Nano. It’s very colorful and lovely OLED screen is slightly smaller than the touch screen, but the player itself feels quite a bit smaller and lighter. It weighs about 2/3 as much, and is noticeably smaller in width and height, while being just a hair thicker.

  21. I merely hope to reveal to you that I am new to wordpress blogging and totally valued your information. More than likely I am most likely to store your blog post . You truly have fabulous article blog posts. Be Grateful For it for expressing with us your website information

    http://www.sacramentoseo3.info

  22. It really is almost close to impossible to come across well-educated parties on this content, and yet you come across as like you be aware of which you’re indicating! With Thanks

    http://www.digitalprinting16.info

  23. This is my first time pay a visit at here and i am truly pleassant
    to read everthing at alone place.

    Also visit my site; ig

  24. Surprisingly motivating suggestions that you have stated, thank you for submitting.

    http://www.hldsoft.com

  25. This is the best occasion to produce some intentions for the near future. I have study this posting and if I may, I wish to recommend you couple of important proposal.

    http://cityofok.com

  26. Hello here, just got receptive to your blog through Bing and yahoo, and have found that it’s pretty informational. I will value should you decide maintain these.

    http://www.divorceattorney1.info

  27. Very absorbing resources you’ll have remarked, thank you for submitting.

    http://kohlantatv.net

  28. I merely hope to reveal to you that I am new to writing and thoroughly liked your work. Probably I am going to remember your blog post . You seriously have memorable article information. Value it for telling with us your favorite internet report

    http://www.sacramentoseo4.info

  29. Absolute engaging resources that you have said, warm regards for publishing.

    http://www.karlchristmas.com

  30. whoah this blog is great i love studying your articles. Keep up the great work! You understand, a lot of people are searching round for this info, you could aid them greatly.

  31. Pretty informative highlights that you have mentioned, thanks so much for writing.

    http://www.theintentionmap.com

  32. It is usually suitable time to construct some intentions for the near future. I have study this blog and if I could, I want to suggest to you you couple of intriguing assistance.

    http://www.caorientation.com

Lascia un commento

Il tuo indirizzo email non verrà pubblicato.

You may use these HTML tags and attributes: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <s> <strike> <strong>