Wednesday, January 20, 2010

Complete circle ..

Bumblebees originally shipped to New Zealand to help farmers produce better clover crops are soon to be re-exported to their native Britain, where the species has died out.
The short-haired bumblebee, (Bombus subterraneus) was one of four species exported from Britain to New Zealand between 1885 and 1906 to pollinate clover crops.
It was last seen in the UK in 1988, but populations have survived in New Zealand, though it is the rarest bumblebee in this country and found only at a few inland sites in the South Island.
In a recent survey of 1984 bumblebees in Canterbury and Otago, only 38 were from the short-haired species.
As many as 100 of the bees will initially be collected in New Zealand and a captive breeding plan has been created in England, with the aim of eventually releasing them at Dungeness, Kent, where they were last seen.
The bees, known scientifically as Bombus subterraneus, will be flown to the UK in cool boxes so they will hibernate during the journey, the BBC reported.
The re-population scheme's project officer, Nikki Gammans, said the bumblebee was a "keystone species" which was key to pollinating around 80 per cent of important crops in Britain.
"By creating the right habitat for these bumblebees, we are recreating wildflower habitat that has been lost, which will be good for butterflies, water voles and nesting birds."
Conservation group Natural England's acting chairman, Poul Christensen, said: "Bumblebees are suffering unprecedented international declines and drastic action is required to aid their recovery.
"Bumblebees play a key role in maintaining food supplies -- we rely on their ability to pollinate crops and we have to do all we can to provide suitable habitat and to sustain the diversity of bee species.
"This international rescue mission has two aims -- to restore habitat in England, thereby giving existing bees a boost; and to bring the short-haired bumblebee home where it can be protected."
Researchers at Canterbury University and Lincoln University have been developing a DNA test for the species as part of a project to better understand why its is not thriving.
New Zealand has 28 native and 13 introduced species of bee.
NZ Herald 2009
The short-haired bumble bee is a very fussy eater by all accounts, it must have fresh, high protein pollen collected every day ! The queen bumble bees are to be flown to Britain in plastic hair rollers (?) blocked at each end with corks, at 5C, at this temp the queen will go into hibernation.
This bumble bee was last seen in the UK in 1998 and declared extinct in 2000, 3 out of the UK`s 27 species have become extinct over the last 70 yrs and 6 more are on the endangered list. Loss of habitat is the main reason for the loss of this insect, along with the over-use of pesticides etc.
We seem to see alot of bumblebees around these days, it is the more common variety, Bombus terrestris, which is found through-out the country.


Cabbage Tree Farm said...

Very interesting, thanks for sharing that news, lets hope it is a successful re-introduction.
And I had no idea there were so many species of bee in NZ!
Lots of bumble bees on our property - they like the wild flowers in the herbal ley in the orchard, and borage and other herbs (flowers on onions too) in the veg garden.

Lynn said...

Bumble and mason bees were the key pollinators in my garden until I introduced honeybees. They all coexisted in beautiful fashion last summer. Each decidedly had their favorite flower on which to feed. Thanks for an interesting post on another important species of bees we can't live without.

Cliff W said...

Gosh! Real global conservation endeavours. Thanks for this insight.

Kenzie said...

Thanks for the very interesting post.