Insects and Invertebrates
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Invertebrates
Invertebrates have long been used to characterize the quality of streams and rivers. EPA funded an effort in Oregon to use invertebrates to help characterize the quality of wetlands. The Xerces Society, an international non-profit for conserving invertebrates located in Portland, managed the study. They created a list of invertebrates from Willamette Valley wetlands, a CD-ROM describing how to identify wetland invertebrates, and a report from the first year of the study. The study was completed in 2010.
At-risk Invertebrates
Oregon is home to a large number of aquatic and wetland invertebrates, many of which have been in decline as the quality and distribution of their habitats have declined. Wetland and aquatic species make up almost half the total number of at-risk invertebrates, in spite their habitats occupying only about 10% of the state. Caddisfies, snails and slugs are some of the groups that have large numbers of species at risk.
The Xerces Society is working with EPA, DSL, OWEB, and a number of partners to improve the information on at-risk invertebrates in the state. Their work includes the development of species accounts for some at risk Oregon invertebrates associated with wetlands, riparian areas and other still water habitats. Available accounts, ordered by group, are listed below.
Beetles
Scientific Name | Common Name | Habitat |
---|---|---|
Eanus hatchi | Hatch's click beetle | Sphagnum bog dependent |
Agonum belleri | Bellercs ground beetle | Sphagnum bog dependent |
Cicindela columbica | Columbia River tiger beetle | Associated with sandbars along river edges |
Cicindela hirticollis siuslawensis | Siuslaw hairy-necked tiger beetle | Estuary associated |
Butterflies
Scientific Name | Common Name | Habitat |
---|---|---|
Polites mardon | Mardon skipper | Often associated with wet meadows |
Icaricia icarioides fenderi | Fenders blue | Frequently associated with wet meadows |
Crustaceans
Scientific Name | Common Name | Habitat |
---|---|---|
Stygobromus oregonensis | Oregon cave amphipod | Known from pools in the bottom of caves |
Freshwater mussels
Scientific Name | Common Name | Habitat |
---|---|---|
Anodonta californiensis | California floater | Known from still and slow water habitats |
Anodonta nuttalliana | Winged floater | Known from still and slow water habitats |
Anodonta oregonensis | Oregon floater | Known from still and slow water habitats |
Anodonta kennerlyi | Western floater | Known from still and slow water habitats |
True Bugs
Scientific Name | Common Name | Habitat |
---|---|---|
Micracanthia fennica | Harney hot spring shore bug | Riparian habitat sometimes near thermal water |
Saldula villosa | Hairy shore bug | Salt marsh habitat |