Wednesday 29 July 2015

One thousand flowers

The plants at Lake Hazen have almost finished flowering now and there is an early morning chill to the air, hinting at autumn being just around the corner. The late flowering dwarf fireweed (Paunnat, Chamerion latifolium) and prickly saxifrage (Kakillarnat, Saxifraga tricuspidata) are at the peak of their flowering. The Arctic willow (Suputiit, Salix arctica), mountain avens (Malikkaat, Dryas integrifolia) and purple saxifrage (Aupilattunnguat, Saxifraga oppositifolia) have already started to disperse their fruit.

Dwarf fireweed (Paunnat, Chamerion latifolium) (top) and 
prickly saxifrage (Kakillarnat, Saxifraga tricuspidata
(bottom) are now in peak flower at Lake Hazen.

Mountain avens (Malikkaat, Dryas integrifilia) with the
fruit twisting (left) and ready to disperse seed (right).


We have had some amazing warm weather for the past two weeks - beautiful blue skies, no clouds and no wind. The water is roaring down the glacial fed Blister Creek, Abbe River and Snow Goose River that bound the Camp Hazen area. The water level in Lake Hazen is rising fast because of the warm temperatures melting the glacial ice faster than the last two years. My temperature sensors have been registering temperatures as high as 29°C at plant height (5cm above ground) and the temperature 10cm below ground has reached as high as 20°C. The landscape is looking much greener than I remember in the past two years.

Arrow Glacier (top) and Bridge Glacier (bottom) at the head of Blister Creek. The warm weather is producing high amounts of melt water from the glaciers this summer (top right). The water from the Arrow glacier runs underneath the Bridge Glacier (bottom left). Zoe at the snout of Bridge Glacier (bottom right).

The flowers have not lasted as long as last year probably because of the warm weather but there have been a lot more flowers to make up for it. The Arctic white heather (Itsutit, Cassiope tetragona) is a prime example. At my site close to camp last year the most flowers on any heather plant was 200 flowers, this year one plant had 1400 flowers at peak flowering!

An Arctic heather (Itsutit, Cassiope tetragona) plant we are
monitoring in full bloom high up on McGill Mountain on 8th July.