Ophiogomphus incurvatus

Taxonomy

Assessment Information

Geographic Range

Population

Habitat and Ecology

Threats

Conservation Actions

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Taxonomy [top]

Kingdom	Phylum	Class	Order	Family
ANIMALIA	ARTHROPODA	INSECTA	ODONATA	GOMPHIDAE

Scientific Name:

Ophiogomphus incurvatus

Species Authority:

Carle, 1982

Common Name/s:

English

–

Appalachian Snaketail

Taxonomic Notes:

Garrison (1995) considered O. alleghaniensis a possible synonym of O. incurvatus.

Assessment Information [top]

Red List Category & Criteria:

Near Threatened ver 3.1

Year Published:

2007

Assessor/s:

Abbott, J.C.

Reviewer/s:

Donnelly, N., Suhling, F. & Clausnitzer, V. (Odonata Red List Authority)

Contributor/s:

Justification:
Ophiogomphus incurvatus occurs in the piedmont/foothills on either side of the Appalachians from Alabama to Maryland. It is known from 20 streams in five states and the larvae susceptible to pollution. The species is declining because of the unusual susceptibility of the larvae to flood scouring and pollution. Nearly meets criteria for B1ab(iii).

History:

1996	–	Lower Risk/near threatened (Baillie and Groombridge 1996)
1996	–	Vulnerable
1996	–	Vulnerable
1994	–	Rare (Groombridge 1994)
1994	–	Indeterminate (Groombridge 1994)
1990	–	Rare (IUCN 1990)
1990	–	Indeterminate (IUCN 1990)
1988	–	Indeterminate (IUCN Conservation Monitoring Centre 1988)
1988	–	Rare (IUCN Conservation Monitoring Centre 1988)
1986	–	Rare (IUCN Conservation Monitoring Centre 1986)
1986	–	Indeterminate (IUCN Conservation Monitoring Centre 1986)

Geographic Range [top]

Range Description:	Endemic to the United States. Occurs in the piedmont/foothills on either side of the Appalachians from Alabama to Maryland (NatureServe 2006).
Countries:	Native: United States (Alabama, Maryland, North Carolina, South Carolina, Tennessee, Virginia, West Virginia)
Range Map:	Click here to open the map viewer and explore range.

Population [top]

Population:	Current population size is unknown.
Population Trend:	Decreasing

Habitat and Ecology [top]

Habitat and Ecology:	Clear streams at low elevations in the open, with sandy or gravely riffles (Dunkle 2000).
Systems:	Terrestrial; Freshwater

Threats [top]

Major Threat(s):	Larvae are susceptible to alterations in stream flow due to clear cutting/deforestation, agriculture, and development that produce flood scouring, siltation and pesticide use (NatureServe 2006). Chemical control of gypsy moths might be a problem (NatureServe 2006).

Major Threat(s):

Larvae are susceptible to alterations in stream flow due to clear cutting/deforestation, agriculture, and development that produce flood scouring, siltation and pesticide use (NatureServe 2006). Chemical control of gypsy moths might be a problem (NatureServe 2006).

Conservation Actions [top]

Conservation Actions:	Populations of O. I. Incurvatus are found in the Pisgah National Forest of North Carolina, Patuxent Wildlife Research Center of Maryland, and a Clemson University research area and the Savanna River Plant in South Carolina.

Conservation Actions:

Populations of O. I. Incurvatus are found in the Pisgah National Forest of North Carolina, Patuxent Wildlife Research Center of Maryland, and a Clemson University research area and the Savanna River Plant in South Carolina.

Citation:	Abbott, J.C. 2007. Ophiogomphus incurvatus. In: IUCN 2012. IUCN Red List of Threatened Species. Version 2012.2. <www.iucnredlist.org>. Downloaded on 21 May 2013.
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