Swiss Chapter of Sigma
The Scientific Research
Members of Sigma Xi and interested guests
are invited to visit the
High Mountain Research
of the University of
at Jöri Lake XIII,
upper Vereina valley/GR
Saturday - Sunday, 12-13,
(19-20, August, alternative date in case
of bad weather)
guided by Kurt Hanselmann
Microbial Life Strategies under Harsh Environmental
High up in the mountains, close to the
skies, water temperatures are near freezing, darkness under snow and
ice lasts for many months, UV-radiation is strong and nutrients are
scarce. One wonders how life has adapted to these challenges over
evolutionary times and one is constantly amazed about the strategies
microbes developed to cope with extreme conditions and how they
respond and adapt physiologically to the complex interactions between
chemical, geological and atmospheric determinants. High mountain
lakes offer ideal sites to study adaptations of organisms to a
variety of environmental extremes. The microbial ecology group of the
University of Zürich is studying these questions in the lakes of
the Jöri catchment, thereby contributing to a worldwide effort
aimed at understanding evolutionary processes in extreme
environments. The water in the 21 Jöri lakes originates
exclusively from rain, snow and ice-melting which makes them
interesting aquatic ecosystems for studies about the role of air–born
natural components and pollutants on the chemical composition of the
water as well. On the excursion, we will also have opportunities to
enjoy beautiful landscapes and great views into the alps.
We are looking forward to having as many
members and their guests as possible attend the excursion.
Saturday 16:28 Arrival of
participants at RhB station Klosters Dorf
Introducing theme and program of the field trip
Dinner together at the Pension Buel.
Preparation of field trip, topographic map
Davos 1197, 1:25000
Sunday Breakfast at 06:30
Departure from Station Klosters Dorf. Surplus
luggage may be left in the accompagning car which will be moved to
the destination location for pickup.
Arrival at High Mountain Research Station
Back at Klosters Platz, station RhB, the
latest. Departure for Landquart at 16:28. Arrivals: Zürich
18:30, Bern 20:14, Basel 19:38, Neuchâtel 20:59, Yverdon 21:24,
Fribourg 20:43, Lausanne 21:35, Geneva 22:20
Travel Train or private car to
Klosters Dorf. Be sure to take the Rhätische Bahn which departs
from Landquart at 15.48 and get off at Klosters Dorf (not
Klosters Platz). We will meet you at the railroad station
Klosters Dorf and guide you to the Pension Buel (Phone 081-422 2669)
where we will spend the night.
Clothing Sturdy hiking shoes,
suncream and rain-gear are recommended. Pack your own lunch for
Sunday’s excursion. The excursion will only take place if the
weather conditions are favourable.
Fitness 5 to 6 hours of walking on
fairly good paths in mountainous terrain, climbing from 2200 to 2800
m and descending again. The final choice of the route will
depend on the weather and the fitness of the participants.
Appropriate alternative excursions have
been planned in case the weather will change while we are already
Housing We are offered a special
price of Fr. 85 at the Hotel/Pension Buel in 7252 Klosters Dorf.
Included in the price are: room (double occupancy), breakfast,
evening meal, service and taxes. Please contact the hotel at
081-422-26-69 (Fax. 081-422-49-41) directly, identify yourself as a
Sigma Xi member if you intend to make use of this special offer, and
make your own reservations as soon as possible. Please pay the costs
to the hotel management directly.
Insurance is the responsibility of
the participant. Please check your REGA membership.
Registration Please send the
registration form directly to Dr. Josef Dommen at
Dunkelhölzlistr.12, 8048 Zürich,
or phone him at 01/491 90 81,
by 6, August.
last revised Aug 1, 2000; Webmasters: M. Wagner
firstname.lastname@example.org and Ph.