Upcoming Seminar
Date: Thursday 16 August 2012, 11AM
Venue: Theatrette, Australian Antarctic Division, 203 Channel Highway, Kingston, Tasmania
Please
join us for a 3 in 1 seminar session showcasing 3 talks from the
recent Scientific Committee on Antarctic Research (SCAR) conference
in Portland. Each talk is 20 min and promise to be user friendly.
Dana
Bergstrom
The
Terrestrial Ecosystem
SCAR's
current biology program , "Evolution and Biodiversity in the
Antarctic – The response of life to change" (EBA) began in
2006 and is now winding up. Substantial progress in understanding
Antarctic terrestrial ecosystems has been made under the banner of
this program. I highlight approaches and major findings in three
areas of research, patterns in biodiversity and the
impact of current and future environmental change on biodiversity and
ecosystem function and science for conservation outcomes.
Justine
Shaw
ASPAs
at risk: conservation planning and non-native species in the
Antarctic protected area network
Antarctic
Specially Protected Areas (ASPAs) are designated to protect
outstanding environmental, scientific, historic, aesthetic or
wilderness values, any combination of those values, or ongoing or
planned scientific research. To what extent these ASPAs meet these
multiple management aims is yet to be fully evaluated. Establishment
of non-native species in the terrestrial Antarctic has the potential
to alter ecosystem function and ultimately biodiversity values. Here
we examine the current Antarctic conservation framework with regard
to the threat to terrestrial biodiversity by non-native species.
Aleks
Terauds
Environmental
change captured by repeat photography: using the South African
Antarctic legacy
There
has been a long history of South African presence in the broader
Antarctic region. Over this time, several generations of scientists
and other expeditioners have photographed significant human and
environmental features. Recent research into the human history of
Marion Island has revealed the existence of a plethora of images.
Long-term changes at a landscape scale can clearly be documented by
comparison of old images (late 1960s and early 1970s) and repeat
images taken at the same sites approximately 40 years later. These
changes include species range expansion, increases in invasive
species and climate-change mediated vegetation succession. The
original images were some of the first colour representations taken
of these landscapes, and even though the original intent may not have
been for monitoring purposes, their use in these comparisons makes
them a unique set of baseline data. Our work demonstrates the
value of archiving historical pictures, not only for understanding
the social dimensions of the human presence in Antarctica, but also
for comprehending human impacts. Of particular interest are the
changes in indigenous – invasive diversity relationships, and these
photopoints, which have now been documented with appropriate
metadata, will prove extremely useful in monitoring these changes at
a landscape scale into the future.
No comments:
Post a Comment