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In the warmest part of the south
Okanagan Valley is a pocket of dry
grassland dominated by bunchgrasses,
the wind, and the scraggly
dark branches of antelope-brush. The
antelope-brush ecosystems of the south
Okanagan weren’t extensive when
European settlement began in the
1800s, and over the past century
more than 60 percent
of them have
been destroyed
and converted
to vineyards, orchards,
croplands,
or urban residential
and industrial
areas. Much of the
remainder has
been disturbed
and invaded by
foreign plants such as knapweed and
cheatgrass. Only 9 percent now remains
relatively undisturbed.
The most immediate danger facing
this natural community is urban development.
Gentle slopes, arid climate, and
proximity to prime human habitats
such as lake shores, towns and roads
make development in this ecosystem
very appealing. The antelope-brush
ecosystem is poorly known, without the
high public profile of an old-growth forest.
In addition, grassland habitats are
subtle in character, and changes may go
unnoticed for a long time.
Schluter, Andrea, Lea, Ted; Cannings, Sydney; Krannitz, Pam. 1995. Antelope-brush Ecosystems. Ministry of Environment, Lands and Parks. Species at Risk Brochure
Topic: Species and Ecosystems at Risk
Keywords: okanagan valley, antelope brush, ecosystem, endangered, at risk
ISSN:
Scientific Name: Purshia tridentata
ISBN: 0-7726-7545-7
English Name: Antelope-brush
Other Identifier:
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