Overview

Distribution

endemic to a single nation

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National Distribution

United States

Origin: Native

Regularity: Regularly occurring

Currently: Present

Confidence: Confident

Type of Residency: Year-round

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Global Range: The county records from the Suwanee River southward to Polk and Highlands counties for this species are believed to be the G. cavillaris cavillaris.

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Ecology

Migration

Non-Migrant: No. All populations of this species make significant seasonal migrations.

Locally Migrant: No. No populations of this species make local extended movements (generally less than 200 km) at particular times of the year (e.g., to breeding or wintering grounds, to hibernation sites).

Locally Migrant: No. No populations of this species make annual migrations of over 200 km.

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Population Biology

Number of Occurrences

Note: For many non-migratory species, occurrences are roughly equivalent to populations.

Estimated Number of Occurrences: Unknown

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Global Abundance

Unknown

Comments: Dunkle (2000) notes that this species is "common" in Florida

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Molecular Biology and Genetics

Molecular Biology

Statistics of barcoding coverage: Gomphus cavillaris

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 0
Specimens with Barcodes: 1
Species With Barcodes: 1
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Conservation

Conservation Status

National NatureServe Conservation Status

United States

Rounded National Status Rank: N4 - Apparently Secure

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NatureServe Conservation Status

Rounded Global Status Rank: G4 - Apparently Secure

Intrinsic Vulnerability: Moderately vulnerable

Comments: Sand-bottomed lakes and their surrounding lands are prime areas for development

Environmental Specificity: Narrow. Specialist or community with key requirements common.

Comments: Sand-bottom lakes

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Global Short Term Trend: Unknown

Global Long Term Trend: Unknown

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Threats

Degree of Threat: High

Comments: The sand-bottom lake habitat for this species is being developed rapidly (Deyrup and Franz, 1994).

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Management

Biological Research Needs: Additional studies on the exact distribution of G. c. cavillaris and G. c. brimleyi are needed within Florida as well as their relationship to the G. cavillaris form in North Carolina.

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Global Protection: Unknown whether any occurrences are appropriately protected and managed

Needs: Protect the water quality of sand-bottom lakes where this species occurs.

Discourage and prevent input of fertilizers, septic tank leachate, and pesticides into the sand-bottomed lakes (Deyrup and Franz, 1994).

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