Bird
Island
This
is a small island (around 500 ha) just off the north-west
tip of South Georgia from which it is separated by Bird
Sound. Rising to 365 metres, the island's northern coast
consists mainly of sheer cliffs with few beaches; the
southern coast is more accessible with numerous beaches.
There is no permanent snow or ice on the island. Summer
rainfall is high. |
BAS Research Facility on Birsd
Island |
Vegetation.
There
is a moderate number of native plant species: around 11
vascular plants and 147 crytogamic plants. On the gentler
slopes below 100 m the vegetation is dominated by tussac
grass; however, there are some examples of fellfield, bog
and mire plant communities. Above 100 m here are sparsely
vegetated gravels and cryptogam-dominated screes and rock
faces.
Insects.
Relatively rich insect fauna with one species of spider,
48 mite species, 30 feather lice (on the rich diversity
of seabirds), eight springtails, four beetles, six flies,
three fleas and a wasp.
Birds.
The
island is the most important location at South Georgia,
in terms of high biodiversity, for breeding birds, with
the occurrence of 27 species, including species which are
globally threatened or near-threatened; endemic or rare;
and important populations globally or regionally.
This is the most important location after Willis Islands
for macaroni penguins (near-threatened) which are abundant
with around 50,000 pairs. Black-browed albatrosses (near-threatened)
are abundant with 15,000 pairs or 15% of South Georgia's
population. Bird Island is the single most important site
on South Georgia for southern giant petrel (near-threatened)
with 500 pairs or 10% of South Georgia's total breeding
population of 5000 pairs, which in turn represents around
one quarter of the world population.
The
main breeding site on South Georgia for wandering albatross
(threatened) is on Bird Island where there are 1,200 pairs,
accounting for just over one quarter of South Georgia's
total breeding population of 4,000 pairs, which in turn
represents about 15% of the world population. The island
is also one of the main breeding sites for the grey-headed
albatross (threatened) with 11,600 of the total 80,000 pairs
occurring on South Georgia which is the world's main breeding
ground for this species, accounting for 46% of the world's
annual breeding population.
The
occurrence of the endemic South Georgia pipit and South
Georgia pintail, and the rare fairy prion is important on
this rat-free island. Rockhopper penguins have also bred
here. In addition Bird Island is an important breeding location
for species for which the South Atlantic is the global headquarters,
in particular the white-chinned petrel, Antarctic prion
and around 1,500 northern giant petrels representing about
half of South Georgia's population of 3,000 pairs, which
is possibly half of the world population.
Seals.
Bird Island is an important location at South Georgia for
the Antarctic fur seal with around 65,000 pups born annually.
Scientific
research.
Protection
of the island is important not only for conservation but
also for research purposes in view of the location of the
British Antarctic Survey's research station at Jordan Cove.
Research has been undertaken on Bird Island since the late
1950s mainly into population biology, ecosystem dynamics
and behaviour of seabirds and seals. Bird Island has been
a CCAMLR Ecosystem Monitoring Programme (CEMP) site since
1985 and many indices of predator populations and performance
have been recorded every year since 1976.
Management.
This is the only candidate protected area for which there
is an environmental assessment (Bonner and Croxall 1988)
examining how the British Antarctic Survey's scientific
activities affect the environment. The Government will undertake
another assessment of these activities in due course.
Protected
Areas
The
Protected Area (terrestrial) category replaces the categories
of Sites of Special Scientific Interest and Specially Protected
Areas from the 1975 Conservation Ordinance. The Government
intends to designate eight Protected Areas (terrestrial)
which are shown in Figure 16 with indicative boundaries,
and described in Annex 11. The main aims of designating
such areas are to provide a high level of protection to
areas of special conservation interest, in particular, representative
or unique ecological systems or habitats, and to prevent
interference with scientific investigations and sites designated
for monitoring, such as land-based sites in CCAMLR=s Ecosystem
Monitoring Programme (CEMP). Terrestrial Protected Areas
are similar in description to >strict nature reserves=
under the IUCN Protected
Area
Management Categories (IUCN (1994)).
Entry
into Protected Areas (terrestrial) is prohibited except
under permit issued at the Government's discretion for scientific
and Entry into Protected Areas (terrestrial) is prohibited
except under permit issued at the Government=s discretion
for scientific and management activities. Permit conditions
would describe activities which are prohibited, restricted
or managed. In the longer term, the Government intends to
develop management plans for each of the Protected Areas,
particularly for those where there are long-term scientific
and associated logistic activities or monitoring programmes.
The plans will set out, amongst other things, the objectives
to be achieved by protection, and measures necessary to
ensure preservation of the area=s unique or representative
ecological systems or habitats. The plans may need to include
special conditions to protect sites designated for regional
and/or global environmental monitoring, such as CEMP sites.
Whilst
access to Protected Areas (terrestrial) is strictly prohibited
(except under permit as described in the previous paragraph),
vessels will continue to be allowed to anchor or cruise
offshore and in bays close to these Areas.
|