Jump to content
Thunder?
Local
Radar
Hot?
IGNORED

Study reveals why timing of bird migration is changing


knocker
 Share

Recommended Posts

Posted
  • Location: Camborne
  • Location: Camborne
    Researchers at the University of East Anglia have found out why birds are migrating earlier and earlier each year.

     

    Experts have long suspected climate change is somehow driving this advancing migration pattern. But new research published today reveals that individual birds migrate like clockwork – arriving at the same time each year.Read more at: http://phys.org/news/2013-11-reveals-bird-migration.html#jCp
    Edited by knocker
    • Like 1
    Link to comment
    Share on other sites

    • Replies 2
    • Created
    • Last Reply

    Top Posters In This Topic

    Popular Days

    Top Posters In This Topic

    Posted
  • Location: Near Newton Abbot or east Dartmoor, Devon
  • Location: Near Newton Abbot or east Dartmoor, Devon

     

    Researchers at the University of East Anglia have found out why birds are migrating earlier and earlier each year.

     

    Experts have long suspected climate change is somehow driving this advancing migration pattern. But new research published today reveals that individual birds migrate like clockwork – arriving at the same time each year.Read more at: http://phys.org/news/2013-11-reveals-bird-migration.html#jCp

     

     

    Heard this earlier, its a fascinating bit of research. Sounds like science, well experiment and data gathering/analysis, at its very best.

    Link to comment
    Share on other sites

    Posted
  • Location: Eastbourne, East Sussex (work in Mid Sussex)
  • Location: Eastbourne, East Sussex (work in Mid Sussex)

    Heard this earlier, its a fascinating bit of research. Sounds like science, well experiment and data gathering/analysis, at its very best.

     

    Quite a lot to take in as it's not as straight forward as it sounds:

     

     

    Climate change has altered the nesting patterns of birds resulting in earlier migrations, experts have found. It has long been suspected that birds are migrating earlier each year to cope with changes in their environment, but research by the University of East Anglia has found that the phenomenon is more complex.

    Individual birds migrate like clockwork arriving at the same time each year, according to the study. However, younger birds are migrating earlier because of changes to nesting and hatching patterns. Dr Jenny Gill, from the UEA's school of Biological Sciences, said: "We have known that birds are migrating earlier and earlier each year – particularly those that migrate over shorter distances.
     
    "But the reason why has puzzled bird experts for years. It's a particularly important question because the species which are not migrating earlier are declining in numbers." The research team looked at a population of Icelandic black-tailed godwits over 20 years. During this time period, the flock advanced their spring arrival date by two weeks. "The obvious answer would be that individual birds are simply migrating earlier each year," Gill said. "But our tracking of individual birds shows that this is not the case. In fact individual birds do almost exactly the same thing every year – arriving punctually at the same time year-on-year. "Because we have been following the same birds for so many years, we know the exact ages of many of them."
     
    Birds hatched in the late 1990s arrived in May, but those hatched in more recent years are tending to arrive in April. "The arrival dates are advancing because the new youngsters are migrating earlier," Gill said. "Climate change is likely to be driving this change because godwits nest earlier in warmer years, and birds that hatch earlier will have more time to gain the body condition needed for migration and to find good places to spend the winter, which can help them to return early to Iceland when they come back to breed."
     
    She added that advances in migration timing are not common among species migrating over long distances because many long-distance migrants arrive so late on the breeding grounds that they have little opportunity to respond to warming conditions by nesting earlier. "This research is very important because many long-distance migrant bird populations are currently declining very rapidly, and identifying how climate change is affecting these populations is a key part of understanding the causes of these declines," Gill said.
     
    The research team has been supported by a network of more than 2,000 birdwatchers who reported sightings of colour-ringed black-tailed godwits as they travelled from Iceland to Spain and Portugal. The research was funded by Natural Environmental Research Council.

     

     

     

    http://www.theguardian.com/environment/2013/nov/13/climate-change-birds-migration

    • Like 2
    Link to comment
    Share on other sites

    Create an account or sign in to comment

    You need to be a member in order to leave a comment

    Create an account

    Sign up for a new account in our community. It's easy!

    Register a new account

    Sign in

    Already have an account? Sign in here.

    Sign In Now
     Share

    • Exceptional warmth for western Europe as October begins

      There'll be exceptionally warm temperatures for the time of year affecting much of western Europe during the coming days, but that warmth will only graze the UK for now. Next weekend may see a more direct hit with the potential for southerly winds to draw some of that heat north and take temperatures into the mid or high-twenties. Read the full update here

      Netweather forecasts
      Netweather forecasts
      Latest weather updates from Netweather 6

      Wind and rain before Spanish heat arrives for the weekend

      There will be downpours into Tuesday with blustery winds picking up. Western Scotland will see a wet few days later this week. Then heat from Spain will surge up from the south giving a warm weekend. Read the full update here

      Netweather forecasts
      Netweather forecasts
      Latest weather updates from Netweather

      UK Storm and Severe Convective Forecast

      UK Severe Convective & Storm Forecast - Issued 2023-10-02 07:46:04 Valid: 02/10/2023 0600 to 03/10/2023 0600 THUNDERSTORM WATCH - MON 02 OCT 2023 Click here for the full forecast

      Nick F
      Nick F
      Latest weather updates from Netweather
    ×
    ×
    • Create New...