Home/Species/ Giant Bearded Crayfish

Procambarus tulanei

Penn, 1953

Giant Bearded Crayfish

G4Apparently Secure Found in 1 roadless area NatureServe Explorer →

G4Apparently SecureGlobal Rank

Least concernIUCN

MediumThreat Impact

Identity

Unique IDELEMENT_GLOBAL.2.117975

Element CodeICMAL14A20

Record TypeSPECIES

ClassificationSpecies

Classification StatusStandard

Name CategoryInvertebrate Animal

IUCNLeast concern

Endemicendemic to a single nation

KingdomAnimalia

PhylumArthropoda

ClassMalacostraca

OrderDecapoda

FamilyCambaridae

GenusProcambarus

Concept Reference

Hobbs, H. H., Jr. 1989. An Illustrated Checklist of the American Crayfishes (Decapoda: Astacidae, Cambaridae, and Parastacidae). Smithsonian Contributions to Zoology 480:1-236.

Conservation Status

Rank Method Rank calculation - Excel v3.2x

Review Date2020-01-23

Change Date2020-01-23

Edition Date2020-01-23

Edition AuthorsCordeiro, J. (2009); B. Wagner and D. Lynch (2020)

Threat ImpactMedium

Range Extent20,000-200,000 square km (about 8000-80,000 square miles)

Number of Occurrences81 - 300

Rank Reasons

This species ranges across a large portion of Louisiana and southern Arkansas. It faces a variety of anthropogenic threats across its range. Taxonomic uncertainty within this species (Walls 2009) may, however, warrant a future reassessment when resolved.

Range Extent Comments

This species is primarily restricted to the West Gulf Coastal Plain in Louisiana north of the Red River and into southern Arkansas (Walls 2009).

Occurrences Comments

Based on separation distances of collections in Arkansas, this species likely occupies at least 150 sites across its range.

Threat Impact Comments

Threats in this region include timber production, livestock ranching, and oil extraction.

Ecology & Habitat

Habitat

it occurs in temporary lentic and lotic situations, and is a secondary burrower (Penn, 1953).

Palustrine Habitats

TEMPORARY POOL

Other Nations (1)

United StatesN5

Province	Rank	Native
Arkansas	S4	Yes
Louisiana	S4	Yes

Threat Assessments

Threat	Scope	Severity	Timing
1 - Residential & commercial development	Small (1-10%)	Moderate - slight	High (continuing)
1.1 - Housing & urban areas	Small (1-10%)	Moderate - slight	High (continuing)
1.2 - Commercial & industrial areas	Small (1-10%)	Slight or 1-10% pop. decline	High (continuing)
2 - Agriculture & aquaculture	Restricted (11-30%)	Moderate - slight	High (continuing)
2.1 - Annual & perennial non-timber crops	Small (1-10%)	Moderate - slight	High (continuing)
2.2 - Wood & pulp plantations	Restricted (11-30%)	Moderate - slight	High (continuing)
2.3 - Livestock farming & ranching	Restricted - small	Slight or 1-10% pop. decline	High (continuing)
3 - Energy production & mining	Small (1-10%)	Moderate - slight	High (continuing)
3.1 - Oil & gas drilling	Small (1-10%)	Moderate - slight	High (continuing)
3.2 - Mining & quarrying	Small (1-10%)	Slight or 1-10% pop. decline	High (continuing)
5 - Biological resource use	Small (1-10%)	Slight or 1-10% pop. decline	High (continuing)
5.4 - Fishing & harvesting aquatic resources	Small (1-10%)	Slight or 1-10% pop. decline	High (continuing)
6 - Human intrusions & disturbance	Small (1-10%)	Slight or 1-10% pop. decline	High (continuing)
6.2 - War, civil unrest & military exercises	Small (1-10%)	Slight or 1-10% pop. decline	Insignificant/negligible or past
7 - Natural system modifications	Restricted - small	Slight or 1-10% pop. decline	High (continuing)
7.1 - Fire & fire suppression	Restricted - small	Slight or 1-10% pop. decline	High (continuing)
7.2 - Dams & water management/use	Small (1-10%)	Slight or 1-10% pop. decline	High (continuing)
9 - Pollution	Small (1-10%)	Moderate - slight	High (continuing)
9.1 - Domestic & urban waste water	Small (1-10%)	Slight or 1-10% pop. decline	High (continuing)
9.2 - Industrial & military effluents	Small (1-10%)	Moderate - slight	High (continuing)
9.3 - Agricultural & forestry effluents	Small (1-10%)	Moderate - slight	High (continuing)
9.4 - Garbage & solid waste	Small (1-10%)	Slight or 1-10% pop. decline	High (continuing)
11 - Climate change & severe weather	Pervasive - restricted	Slight or 1-10% pop. decline	High (continuing)
11.1 - Habitat shifting & alteration	Pervasive - restricted	Slight or 1-10% pop. decline	High (continuing)
11.2 - Droughts	Pervasive - restricted	Slight or 1-10% pop. decline	High (continuing)
11.3 - Temperature extremes	Pervasive - restricted	Slight or 1-10% pop. decline	High (continuing)
11.4 - Storms & flooding	Pervasive - restricted	Slight or 1-10% pop. decline	High (continuing)
11.5 - Other impacts	Pervasive - restricted	Slight or 1-10% pop. decline	High (continuing)

Roadless Areas (1)

Louisiana (1)

Area	Forest	Acres
Saline Bayou W & S River Corridor	Kisatchie National Forest	5,355

References (6)

Crandall, K. A., and S. De Grave. 2017. An updated classification of the freshwater crayfishes (Decapoda: Astacidea) of the world, with a complete species list. Journal of Crustacean Biology 37(5):615-653.
Hobbs, H. H., Jr. 1989. An Illustrated Checklist of the American Crayfishes (Decapoda: Astacidae, Cambaridae, and Parastacidae). Smithsonian Contributions to Zoology 480:1-236.
McLaughlin, P. A., D. K. Camp, M. V. Angel, E. L. Bousfield, P. Brunel, R. C. Brusca, D. Cadien, A. C. Cohen, K. Conlan, L. G. Eldredge, D. L. Felder, J. W. Goy, T. Haney, B. Hann, R. W. Heard, E. A. Hendrycks, H. H. Hobbs III, J. R. Holsinger, B. Kensley, D. R. Laubitz, S. E. LeCroy, R. Lemaitre, R. F. Maddocks, J. W. Martin, P. Mikkelsen, E. Nelson, W. A. Newman, R. M. Overstreet, W. J. Poly, W. W. Price, J. W. Reid, A. Robertson, D. C. Rogers, A. Ross, M. Schotte, F. Schram, C. Shih, L. Watling, G. D. F. Wilson, and D. D. Turgeon. 2005. Common and Scientific Names of Aquatic Invertebrates from the United States and Canada: Crustaceans. American Fisheries Society Special Publication 31. 545 pp.
Penn, G.H. 1953a. A new burrowing crawfish of the genus <i>Procambarus </i>from Louisiana and Mississippi (Decapoda: Astacidae). Tulane Studies in Zoology 1(6): 71-76.
Taylor, C. A., G. A. Schuster, J. E. Cooper, R. J. DiStefano, A. G. Eversole, P. Hamr, H. H. Hobbs III, H. W. Robison, C. E. Skelton, and R. F. Thoma. 2007. A reassessment of the conservation status of crayfishes of the United States and Canada after 10+ years of increased awareness. Fisheries 32(8):371-389.
Walls, J.G. 2009. Crawfishes of Louisiana. Louisiana State University Press: Baton Rouge, Louisiana. 240 pp.

Procambarus tulanei

Habitat

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