Thursday, November 1, 2012

Exhaustive family tree for birds shows recent, rapid diversification

New information about bird evolution from Yale University.

Exhaustive family tree for birds shows recent, rapid diversification

New Haven, Conn. — A Yale-led scientific team has produced the most comprehensive family tree for birds to date, connecting all living bird species — nearly 10,000 in total — and revealing surprising new details about their evolutionary history and its geographic context.

Analysis of the family tree shows when and where birds diversified — and that birds' diversification rate has increased over the last 50 million years, challenging the conventional wisdom of biodiversity experts.

"It's the first time that we have — for such a large group of species and with such a high degree of confidence — the full global picture of diversification in time and space," said biologist Walter Jetz of Yale, lead author of the team's research paper, published Oct. 31 online in the journal Nature.

He continued: "The research highlights how heterogeneously fast diversifying species groups are distributed throughout the family tree and over geographic space. Many parts of the globe have seen a variety of species groups diversify rapidly and recently. All this leads to a diversification rate in birds that has been increasing over the past 50 million years."

The researchers relied heavily on fossil and DNA data, combining them with geographical information to produce the exhaustive family tree, which includes 9,993 species known to be alive now.

"The current zeitgeist in biodiversity science is that the world can fill up quickly," says biologist and co-author Arne Mooers of Simon Fraser University in Canada. "A new distinctive group, like bumblebees or tunafish, first evolves, and, if conditions are right, it quickly radiates to produce a large number of species. These species fill up all the available niches, and then there is nowhere to go. Extinction catches up, and things begin to slow down or stall. For birds the pattern is the opposite: Speciation is actually speeding up, not slowing down."

The researchers attribute the growing rate of avian diversity to an abundance of group-specific adaptations. They hypothesize that the evolution of physical or behavioral innovations in certain groups, combined with the opening of new habitats, has enabled repeated bursts of diversification. Another likely factor has been birds' exceptional mobility, researchers said, which time and again has allowed them to colonize new regions and exploit novel ecological opportunities.

In their analysis, the researchers also expose significant geographic differences in diversification rates. They are higher in the Western Hemisphere than in the Eastern, and higher on islands than mainlands. But surprisingly, they said, there is little difference in rates between the tropics and high latitudes. Regions of especially intense recent diversification include northern North American and Eurasia and southern South America.

"This was one of the big surprises," Jetz said. "For a long time biologists have thought that the vast diversity of tropical species must at least partly be due to greater rates of net species production there. For birds we find no support for this, and groups with fast and slow diversification appear to occur there as much as in the high latitudes. Instead, the answer may lie in the tropics' older age, leading to a greater accumulation of species over time. Global phylogenies like ours will allow further tests of this and other basic hypotheses about life on Earth."

82 comments:

  1. thank you so much for giving us information about animal related issues, it would be very helpful very useful discussions! i would like to visit your hospital as well,keep posting more.

    ReplyDelete
  2. Your blog post is very interesting and informative. You come up with new and innovative topics and their superb ideas. Thank you for sharing it with us
    hotmail.com
    hotmail login

    ReplyDelete
  3. BULK SMS
    Connect with The Most Trusted BULKSMS Provider in India. Attractive Price with Guarantee 100% Delivery. Call :9907922122 or visit https://www.smsgatewayhub.com
    Bulk SMS service simply means sending out a large number of SMS for delivery to targeted mobile numbers.

    ReplyDelete
  4. This is really interesting. Check this link for more interesting products

    ReplyDelete
  5. Our bureau is the only area known to provide friendly and esthetical girlfriend (escort service in jaipur) and companion which you can't deny in dreamy state. It is because of the services of the sexy babes are extremely warmth, esthetical and perfect in each and every sense. The instant can always be memorable and lingering. It may be so good a grin will flash on mind memory the experience. They are largely of college going pupils of hi society WHO enjoys to serve them beforehand of fellows.

    call girls in jaipur

    ReplyDelete
  6. Since you know many internet's dating sites and profiles are Imitation, here we supply 100% right info concerning the woman and about our bargains. There are various men and women that are bored with trying the relationship program, and we're sick of this amusements that girls play dates. You have gone , held open the entryway, hauled outside the chair, and compensated for your dinner. Towards the end of the night, you did not receive anything, and a few days after the truth, She'd let me understand that she"only needs to be buddies." Since you are able to imagine, the situation could prove to be somewhat disappointing.

    escort in jaipur
    escort service in jaipur

    ReplyDelete
  7. Peptid
    This is an excellent post I seen thanks to share it. It is really what I wanted to see hope in future you will continue for sharing such a excellent post.

    ReplyDelete
  8. You might deal with aol mail login problems due to the multiple reasons. visit askprob to get your problem resolved.

    ReplyDelete
  9. AOL mail not receiving emails problem is one of the biggest problem these days. people face such kind of problem due to the multiple reasons. visit askprob to get your problem resolved.

    ReplyDelete
  10. When users try to download some software or files from Internet their computer systems In result they cause issues account live password reset, account.live.com/password/reset, account.live.com.sign in, account live com password reset in functioning and computer locked and user get error message or account.live.com/password/reset so please call 1-800-436-6070 customer support.

    ReplyDelete
  11. If you are download outlooks-office365 but you pc or laptop blocked account live password reset third party service providers based in USA and Canada offering account.live.com.sign in our customer support online across the globe so please call 1-800-436-6070 24X7 working.

    ReplyDelete
  12. If you consider getting norton.com/setup helps you get back the initial performance of your computer and make it run properly and without any glitches. You can look for the product at norton.com/activate.They connect to your computer to try to fix it due to the same sort of error for more detail please visit our website.

    ReplyDelete
  13. Following are the technical problems mcafee installation which can be faced by users while they are trying mcafee.com/activate to use antivirus security for more detail please visit our website or customer support online chating.

    ReplyDelete
  14. your devices like PCs, Laptops and many others technical issues then you can contact customer support anytime. your problem like as account live password reset, account.live.com/password/reset or account.live.com.sign in Just make call 1-800-436-6070 to our toll free helpline numbers and get best assistance online.

    If you are unable to recover or change your account live password reset credentials then visit or account.live.com.sign in our team or choose account live com password reset. Here technical experts are available and working 24X7 and offering best technical support.

    ReplyDelete
  15. If you are unable to open office365-lives your laptop or Pc and need technical support immediately then just click account.live.com/password/reset and discuss whatever issues account live password reset your are facing. Our technical support team is available 24X7 or more detail visit our website.

    ReplyDelete
  16. If any user apple id locked and facing forgot apple id password or apple id reset the best way to recover such information is to take customer support of our technical experts. For reaching us, a user can have our toll free support number 1-800-436-6070 open 24X7.

    ReplyDelete
  17. If you are face technical issuse apple id reset with our my apple id password forgot and other such errors. user can get help apple id password reset of highly qualified technical experts by calling our toll free support phone number 1-800-436-6070.

    ReplyDelete
  18. Are you dealing with aol mail disappeared problem . IT can be due to the several reasons. visit askprob to get your problem resolved.

    ReplyDelete
  19. Normally laces are not skin friendly. But we know that cotton is very go-od for our skin. Cotton Chemical laces are easy to carry. These fancy taces are used by fashion designers for embellishing sarees, dresses, gowns and other indo-western dresses.
    lace fabric online india, Chemical laces, Cotton Chemical Lace, Cotton Laces, Fancy Laces, Lace Fabrics, Laces

    ReplyDelete

  20. I love this content keep sharing !!!
    Fashion Fabrics provide a wide range of quality fabric. Lace fabric, Prints, laces, net embroidery, khadi, denim and more.
    Buy Indian Fabric By The Yard, Indian Fabric Store Online
    knit fabric,knit fabric online,knit fabric types,buy fabric online cheap,interlock knit fabric,knit fabric online india,printed knit fabric by the yard,sweater knit fabric,jersey knit fabric wholesale,hosiery fabric,hosiery fabric price

    ReplyDelete

  21. I love this content keep sharing !!!
    Fashion Fabrics provide a wide range of quality fabric. Lace fabric, Prints, laces, net embroidery, khadi, denim and more.
    Buy Indian Fabric By The Yard, Indian Fabric Store Online
    net embroidery,embroidery fabric,net embroidery fabric,net fabric material,net fabric design,embroidery fabric wholesale,hand embroidery on net fabric,designer net fabric online

    ReplyDelete
  22. This article is very helpful. If you want to know how to open NGO or any type of business registration you are the right place. NGOguru an initiative of TCSL managed by a team of professionals (CA, CS, Advocate, MBAs, and Technocrats) up with progressing and forthcoming Govt. Grants, Projects and Foreign Contributions. NGO guru also provides NGO Registration, Business Registration, 12a & 80g registration, NGO compliance, FCRA Registration and all types of business consultant. For more info call us: +91-9315400876, or visit here: NGOguru

    ReplyDelete
  23. love this content keep sharing!!!
    The best and most affordable real time broadcast graphics in the world
    https://www.wasp3d.com/?utm_source=Org&utm_medium=Backlinks&utm_campaign=OffpageReal

    Real time broadcast graphics, broadcast graphics

    ReplyDelete
  24. love this content keep sharing!!!
    The best and most affordable real time broadcast graphics in the world
    https://www.wasp3d.com/?utm_source=Org&utm_medium=Backlinks&utm_campaign=OffpageReal

    Real time broadcast graphics, broadcast graphics



    ReplyDelete
  25. I like viewing web sites which comprehend the price of delivering the excellent useful resource free of charge. I truly adored reading your posting. Thank you! Berrylook Coupons

    ReplyDelete
  26. Great Information, thanks for sharing with us. Visit Ogen Infosysyem for best web design services in Delhi, we have professional website designers and developers to provide.
    Website Designing Company in Delhi

    ReplyDelete
  27. We are located in Manchester, England, UK. Clients all over Europe can safely Buy marijuana online UK, from us as we have the best quality Weed for sale.

    Our Products:

    Buy sour diesel online

    Wedding cake strain

    buy cannabis online UK

    Order weed online uk

    ReplyDelete
  28. Find the Best place to buy pet products online product services in USA. If you are interested in purchased pet product Buy dog accessories online, Pet essentials online store, Buy pet essentials online, Buy cheap pet products online, Buy pet accessories online, and Order pet products online and offer products for visit own website or through an Pet products online store site.

    #Buy pet products online #Buy USB Portable Paw Washing Cup #Buy Pet Hand Bag Online
    #Buy Portable Foldable Pet Playpen #Buy Dog Luminous Collar USB Charging
    #Buy Pet Water Fountain
    Buy Electric Shock Collar
    #Buy Pet Cleaning And Grooming Set #Buy Pet Feeder Fountain online
    Buy Pet Hair Shaver online

    ReplyDelete
  29. Today, everyone needs an online survey solution and online survey company for authentic surveys in various types of business. There are many changes and update in different organizations day by day. So, if you want to get the latest survey update about customer satisfaction then Jusfeedback Pte Ltd is the best option for you. Contact us now and get genuine solutions. You can also follow us on given links below-:

    online survey solution
    online survey company
    Text Analytics Singapore
    Enterprise Feedback Management

    ReplyDelete
  30. Freepowering traders are able to import and distribute hardware items, household liquids, and other accessories. At the same time, we managed to obtain distribution rights for some of the popular brands such as “Jackie”, “Singer Oil”, “Ronson” as well as household scents.

    Read More About Us-:

    ROACH REPELLENT Singapore

    AIR CON CLEANER PRODUCTS

    ReplyDelete
  31. Bradford Access Pte Ltd is a leading distributor of home security alarm systems in Singapore. We offer Video Intercom System Singapore for private and government sectors. We supply high-quality video intercom with high tech technology at a budget price. Our expert provides safe and easy monitoring solutions for apartment buildings and private houses.

    Read More about us-:

    security products distributors

    Card access system Singapore

    Video Intercom System Singapore

    ReplyDelete
  32. Wondermouse Technologies is leading Mobile App Widget Development company in india having a pool of developers who are highly skilled in mobile app development and we provide dedicated application maintenance and support right under your budget. Our react native development services are aimed at fulfilling your all requirements.

    ReplyDelete
  33. Jusfeedback Pte Ltd is especially known for its Customer Satisfaction survey. We are the best Speech Analytics and online survey company in the whole Asia-Pacific region. Our services are reliable and affordable for everyone. If you want to get a genuine solution then contact us.

    Today, everyone needs an online survey solution and online survey company for authentic surveys in various types of business. There are many changes and update in different organizations day by day. So, if you want to get the latest survey update about customer satisfaction then Jusfeedback Pte Ltd is the best option for you. Contact us now and get genuine solutions.

    ReplyDelete
  34. Water bodies are the main source of transportation for international freight forwarding. Due to this, sea freight company in Delhi,
    visit
    Freight Forwarder in Vietnam
    Shipping Company In India

    ReplyDelete
  35. Astro Finding is one of the Online Astro companies in India providing Astrology Horoscope Consultation by free Kundli prediction from Astrologers of India on The Best Online Astrology Website in India.
    Free Astrology Predictions

    ReplyDelete
  36. I am a web developer based in Meerut with 4 yrs of experience. I have been working at a website designing company in Meerut. Providing website designing, software development, nsdl portal developer, nsdl portal designer, pan card portal developer, app development, and digital marketing services in Meerut, Delhi NCR, Noida.
    Web designer in Meerut

    ReplyDelete
  37. Play online and win daily money. Satta King Online Game Like Matka, Delhi Bazar, Ghaziabad, Faridabad and Delhi Satta.
    Satta King

    ReplyDelete
  38. The Sabera online local News Portal. Read local New, Meerut News and also download app and up to date.
    Meerut Local News
    Meerut Latest News

    ReplyDelete
  39. Find the best product home workout equipment online immediately click our link One Click Smart online shopping company best quality product such as Buy Indoor Cycling Exercise Bike, Fitness equipment online store, Buy abdominal exercise equipment online, Buy workout equipment for home if you know more info visit at site.

    Fitness Equipment Folding Treadmill
    Buy Indoor Cycling Exercise Bike
    Two way Belt Exercise Spinning Bike
    Stainless Indoor Horizontal Bars
    Buy Male Spring Chest Developer
    Buy Push Ups Rack Board

    ReplyDelete
  40. Exactly, the very information that I was looking for. I was looking for such kind of article on the Internet and finally ended up here. Thanks for the help!
    Wedding hall in Meerut
    Top 10 CBSE School in Meerut
    SEO Expert in Meerut
    Software Development Company In Delhi NCR
    Digital Marketing Company in Hapur
    Web Development Meerut

    ReplyDelete
  41. Nemoclean is one the finest and successful home cleaners in Columbus USA and our aim is to offer best environment by quality cleaning services. We have best and trained teams who do their job with perfection.

    With high quality cleaning services, we provide affordable and cheapest small office cleaning in Columbus. So if you need excellent cleaning services then contact us. Visit our website for more information.

    clean up my office

    ReplyDelete
  42. Elders Dating is one the best dating site for seniors people who looking for right partner. We are helping people by instructing them how to Login to seniorpeoplemeet. If you have any issue in Seniorpeoplemeet login then contact us.

    You can calculate you love crush by using Love crush calculator on our website. Here you can get all instruction for creating and login accounts on dating sites.

    Ourtime login

    ReplyDelete
  43. Acedredlo LLC is a company to provide the Small Business loans in Denver. If you are looking for Business lenders in Denver then we are best choice for you. For more detail and any query call our executive person.

    We also offer our service in different cities, so you can contact us for Business loan lenders in Colorado, Revenue Generation Services Denver, Merchant services in Denver and many more.

    Private investment company Colorado

    ReplyDelete
  44. Krafty Fox Kendra is a online shopping store and offering the latest’s collection. Here you find the latest collection for men’s and women’s. To Buy men t shirts online, Buy women t shirts online visit our website.

    Aquaman Logo Short Sleeve Junior Sheer

    Wake Up Adult Pull Over Hoodie

    ReplyDelete
  45. If you are looking for top organizational consultant in your bay area then Equity Inclusion Diversity Consultant is best for you. We are offering many services like Community Organizer in Bay Area, Social Justice Advocate Bay Area, Top Organizational Consultant Bay Area and many more.

    To Know more detail about our services visit at Black Women’s Health Advisor & Consultant, Sexual and Reproductive Health Justice Advocate and Public Health Strategist Bay in Area.

    Contemplative and Holistic Health Consultant Bay Area

    ReplyDelete
  46. Rose gift luxury is an online store for gifts which made of roses with different color. You can order it for your office, weddings and for home decoration. So to Buy rose made gifts online, Handmade gift box, Necklace in rose box online visit our website.

    We also offer Purple luxury rose bear handmade gift box and many other gifts in different color.

    Grey luxury rose bear handmade gift box

    ReplyDelete
  47. Here we open an online shop for latest and different kinds of product for women. To Buy lingerie online, Buy corset body shaper online, Buy women yoga clothing online we are the best place for you.

    At our online store you can buy High waist fitness push up fitness clothing and other quality products for women.

    Womens hot erotic lingerie dress sexy costume

    ReplyDelete
  48. Lavish Cleaning services providing commercial cleaning, residential cleaning, Move in and Move out cleaning service in USA. If you are looking for Deep Cleaning Services Massachusetts then we are best for you.

    Covid-19 sanitation services Massachusetts

    ReplyDelete
  49. Are you looking for Electric chain saw? Chain saw pro is best option to Buy electric chain saw and we supply Best electric chain saw online for customers. We have different variety of Electric chain saw for you.

    At our online store you can get Mini Electric chain saw online, rechargeable electric chainsaw, battery chainsaw and Handy electric chainsaw online.

    ReplyDelete
  50. Shop the latest shoes, sandals and slippers ilaceupinc online store at best price. Here you can Buy ladies sandals online, Buy summer shoes for women, Buy high heel sandals for women and many other latest collection for women.

    Eilyken 2021 summer new crystal ankle strap sandals women sexy open toe

    Aneikeh new women sandals pvc jelly crystal heel transparent women sexy clear high heels summer sandals

    ReplyDelete
  51. If you are looking for latest ethnic fashion wear then our online store is the best for you. Here you can buy Baby ethnic dress online, Best online clothing stores for men and many other latest collection for summer.

    Best men clothes online

    ReplyDelete
  52. Chainsaw-pro is a one the best electric chain saw provider. If you are looking Where to buy electric chain saw then we are the best option for you. With us you can buy different kind of chain saw.

    Electric chain saw online store

    ReplyDelete
  53. Wimp solutions is an online store for quality fitness equipment. Here you can get all kind of exercise equipment for your body. To Buy exercise equipment online, Buy fitness waist trainer online, Buy hand grip trainer online visit our online store.

    Here you can also get EMS smart slimming belt at best price. So if you interested buy any equipment visit our website for more detail.

    Hand gripper finger expander

    ReplyDelete
  54. If you are looking for an online store where latest products and quality is available then the merbang essentials is best for you. here you can Buy home decor items online, Buy kitchen gadgets online, Buy ladies matching sets online, Buy women's top online, Buy gemini maxi dress online in affordable prices.

    You can also order Mermaids Exist Wall Sticker you home. so just visit our online store for it.

    Angel on Guard Art Sculpture

    ReplyDelete
  55. Are you looking for Small Business loans in Denver? Our Acedredlo offering the loan for Business. We just want to help who have needed of it.

    So any one want know about our services visit our website of Business loan lenders in Colorado and get all detail about us.

    Revenue Generation Services Colorado

    ReplyDelete
  56. Our company working as Organizational Development Consultant Bay Area. If you are looking for any consultant in bay area then Earth seed equity is best option for you.

    We also work for Black Women’s Health Advisor & Consultant in bay area. For more detail visit our website.

    ReplyDelete
  57. When you are planning on defining the look and space of your home, it is very important that you take the time out to find a reliable interior designer that can offer their expertise to you and define the whole ambience inside your home. However, with so many well known interior designers offering their services in Singapore, it can be a little difficult for you to choose a company that can be just perfect for you. Here are some things that you need to look for when you want to hire an interior designer Singapore for managing your residential interiors.

    ReplyDelete
  58. This is the france Local Business Listing Sites list to obtain dofollow back links to enhance DA and of your site to boost on-line track record and also brand name exposure.

    ReplyDelete