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Cavia intermedia 

Scope: Global
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Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Chordata Mammalia Rodentia Caviidae

Scientific Name: Cavia intermedia
Species Authority: Cherem, Olimpio & Ximenez, 1999
Common Name(s):
English – Santa Catarina’s Guinea Pig, Moleques do Sul Guinea Pig

Assessment Information [top]

Red List Category & Criteria: Critically Endangered D ver 3.1
Year Published: 2016
Date Assessed: 2016-03-01
Assessor(s): Roach, N.
Reviewer(s): Amori, G.
Contributor(s): Chapman, R.
Justification:
This species is listed as Critically Endangered because the number of remaining mature individuals of this species is estimated to be approximately 42 and they all occur in one location.
Previously published Red List assessments:

Geographic Range [top]

Range Description:This species in known from Serra do Tabuleiro State Park, on Moleques Island do Sul, in the state of Santa Catarina, Brazil (Lacher 2016).
Countries occurrence:
Native:
Brazil
Additional data:
♦ Estimated area of occupancy (AOO) - km2:0.105
♦ Number of Locations:1
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population:Salvador and Fernandez (2008) studied the population dynamics of this species between March 2004 and June 2005 using monthly capture-mark-recapture sampling methods and radio telemetry. Over 5,530 trap-nights, there were 665 captures of 141 individuals. The minimum population was 24, and maximum population was 60. The population had a high and stable density, stable age structure with mostly adults, small home ranges, and high rates of survival. The total population is estimated at 42 (Lacher 2016).
Current Population Trend:Decreasing
Additional data:
♦ Number of mature individuals:24-60
♦ Population severely fragmented:No

Habitat and Ecology [top]

Habitat and Ecology:Feeds mainly on grasses. Reproduction is year-round with litter sizes from one to two young which are born highly precocial. Home ranges were found to be 0.05-0.35 ha (Lacher 2016). 

 

Systems:Terrestrial

Threats [top]

Major Threat(s): People have free access to the island and protected area enforcement is not strict. The hunting of this rodent is presumed a threat.

Conservation Actions [top]

Conservation Actions: This rodent occurs in Serra do Tabuleiro State Park which may receive funds from the Global Environment Facility (GEF) for the conservation of biodiversity and ecosystem rehabilitation. C. intermedia habitat has been designated a Preservation Zone, and all entry is prohibited (Cherem et al., 1999). This park is unmanaged and the park status and entry prohibition are not enforced.

Classifications [top]

0. Root -> 18. Unknown
suitability:Suitable  
2. Land/water management -> 2.1. Site/area management
4. Education & awareness -> 4.3. Awareness & communications

In-Place Research, Monitoring and Planning
In-Place Land/Water Protection and Management
  Occur in at least one PA:Yes
In-Place Species Management
In-Place Education
5. Biological resource use -> 5.1. Hunting & trapping terrestrial animals -> 5.1.1. Intentional use (species is the target)
♦ timing:Ongoing    
→ Stresses
  • 2. Species Stresses -> 2.1. Species mortality
6. Human intrusions & disturbance -> 6.1. Recreational activities
♦ timing:Ongoing    
→ Stresses
  • 2. Species Stresses -> 2.2. Species disturbance
6. Human intrusions & disturbance -> 6.3. Work & other activities
♦ timing:Ongoing    
→ Stresses
  • 2. Species Stresses -> 2.2. Species disturbance
1. Research -> 1.1. Taxonomy
1. Research -> 1.3. Life history & ecology
1. Research -> 1.5. Threats
1. Research -> 1.6. Actions
3. Monitoring -> 3.1. Population trends

Bibliography [top]

IUCN. 2016. The IUCN Red List of Threatened Species. Version 2016-2. Available at: www.iucnredlist.org. (Accessed: 04 September 2016).

Lacher, T.E., Jr. 2016. Family Caviidae. In: Wilson, D.E., Lacher, T.E., Jr and Mittermeier, R.A. (eds), Handbook of Mammals of the World. Vol. 6. Lagomorphs and Rodents: Part 1., Lynx Editions, Barcelona.

Salvador, C. H. and Fernandez, F. A. S. 2008. Population dynamics and conservation status of the insular cavy Cavia intermedia (Rodentia: Caviidae). Journal of Mammalogy 89(3): 721-729.
Citation: Roach, N. 2016. Cavia intermedia. The IUCN Red List of Threatened Species 2016: e.T136520A22189125. . Downloaded on 01 October 2016.
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