Procambarus bouvieri 

Scope: Global
Language: English

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Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Arthropoda Malacostraca Decapoda Cambaridae

Scientific Name: Procambarus bouvieri (Ortmann, 1909)

Assessment Information [top]

Red List Category & Criteria: Endangered B1ab(i,iii,iv) ver 3.1
Year Published: 2010
Date Assessed: 2010-06-01
Assessor(s): Alvarez, F., López-Mejía, M. & Pedraza Lara, C.
Reviewer(s): Collen, B. & Richman, N.
Contributor(s): Livingston, F., Soulsby, A.-M., Batchelor, A., Dyer, E., Whitton, F., Milligan, H.T., Smith, J., Lutz, M.L., De Silva, R., McGuinness, S., Kasthala, G., Jopling, B., Sullivan, K. & Cryer, G.

Procambarus bouvieri has been assessed as Endangered B1ab(i,iii,iv). This species has a restricted range, with an extent of occurrence of 234 km2, and is only known from three locations. Furthermore, it is impacted by a number of major threat processes and has suffered declines in both its range and abundance. Urgent conservation action is needed to protect this species and to prevent further destruction and degradation of its habitat. In addition, further research is required to determine the abundance and current distribution of this species and whether both have in fact undergone further declines.

Geographic Range [top]

Range Description:This species is endemic to the Mexican Central-Occidental Plateau (Gutiérrez-Yurrita and Latournerié-Cervera 1999). Its current distribution is patchy (Amaya Tapia et al. 1999) and restricted to just two or three small ponds, though it was previously more widespread over the state of Michoacán (Gutiérrez-Yurrita and Latournerié-Cervera 1999).

This species has an extent of occurrence of 234 km2.
Countries occurrence:
Mexico (Michoacán)
Additional data:
Number of Locations:3
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population:This species is thought to have been greatly reduced in abundance, with several populations having been extirpated (Gutiérrez-Yurrita and Latournerié-Cervera 1999).
Current Population Trend:Decreasing
Additional data:
Population severely fragmented:No

Habitat and Ecology [top]

Habitat and Ecology:

This species is now only known from lentic habitats (Gutiérrez-Yurrita and Latournerié-Cervera 1999). It has been studied in Cuitzitan Pond, which is shallow, with a maximum depth of 1.6 m (Gutiérrez-Yurrita and Latournerié-Cervera 1999).  This pond is flooded from March to July, then retains water between August and February, before becoming desiccated (Gutiérrez-Yurrita and Latournerié-Cervera 1999). The reduction in water level is accompanied by a reduction in food availability and the crayfish spend almost all of the cold, dry season inside burrows, where they can lower their metabolism to conserve energy (Amaya Tapia et al. 1999).

The dominant aquatic vegetation in Cuitzitan Pond is jungle rice and bladderworts, and there are no crayfish predators present (Gutiérrez-Yurrita and Latournerié-Cervera 1999). The pond has a mean temperature of 18.70 to 20.17°C, mean dissolved oxygen content of 6.20 to 6.53 mgl-1, mean turbidity of 25 to 40 cm visibility, and alkalinity of 21.5 and 5.5 mgl-1CaCO3 in the cold and warm seasons respectively (Gutiérrez-Yurrita and Latournerié-Cervera 1999).


Threats [top]

Major Threat(s): This species is threatened by over-exploitation, habitat destruction and degradation, and the introduction of exotic species (Gutiérrez-Yurrita and Latournerié-Cervera 1999; Amaya Tapia et al. 1999). These processes have already resulted in reductions in the abundance of this species, and the extirpation of some populations (Gutiérrez-Yurrita and Latournerié-Cervera 1999; Amaya Tapia et al. 1999). Much of the natural habitat of this species has been altered by chemical pollution or by human activities such as canalization, clearing, dredging and embanking of rivers, construction of reservoirs, and the regulation of water levels and stream flows (Gutiérrez-Yurrita and Latournerié-Cervera 1999). It is also threatened by the introduction of exotic crayfish such as Procambarus clarkii and Cherax species from Australia. These compete for food resources and refuges, and also alter the total production of the native ecosystems (Gutiérrez-Yurrita and Latournerié-Cervera 1999).  In addition this species' distribution lies on the outskirts of the rapidly growing city of Uruapan, Michoacan, the expansion of which is predicted to soon envelope this species remaining locations. Furthermore, it is predicted that the springs at Presa Calzonzin (Calzonzin Dam), where one of the main populations of this species occurs, will be compromised through use as a water source for the city (F. Alvarez pers. comm. 2010).

Conservation Actions [top]

Conservation Actions: There are no species-specific conservation measures in place for this species. Urgent conservation action is needed to protect this species and to prevent further destruction and degradation of its habitat. In addition, further research is required to determine the abundance and current distribution of this species.

Citation: Alvarez, F., López-Mejía, M. & Pedraza Lara, C. 2010. Procambarus bouvieri. The IUCN Red List of Threatened Species 2010: e.T153827A4550479. . Downloaded on 24 May 2018.
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