Ministry of Environment
Sensitive
Ecosystems Inventories
Terrestrial Herbaceous Ecosystems of Eastern Vancouver Island and the Gulf Islands
Terrestrial Herbaceous ecosystems are open wildflower meadows and grassy hilltops, usually interspersed with moss-covered rock outcrops. They typically occur as small openings in forested areas with gentle to moderate slopes not exceeding 30% grades. They are located from outside the salt spray zone near shorelines, to the summits of local hills and mountains within the study area.
What are the ecological attributes of Terrestrial Herbaceous ecosystems?
Terrestrial Herbaceous ecosystems are host to a variety of highly specialized micro-habitats including hummocks, hollows and vernal pools, that meet the requirements of many different plant and animal species. Some of these species, such as Bremner’s Silverspot Fritillary or Edith’s Checkerspot butterfly, are rare and are only known to occur in these ecosystems.
What are some of the conservation concerns of Terrestrial Herbaceous ecosystems?
Terrestrial Herbaceous ecosystems are characterized by thin soils which are easily disturbed. Herbaceous plants can be easily trampled or dislodged onto bare rock where they cannot re-establish. Thus they are highly vulnerable to a range of human disturbance factors including residential development and various recreational uses.
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