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Crambe pritzelii 

Scope: Global
Language: English
Status_ne_offStatus_dd_offStatus_lc_offStatus_nt_offStatus_vu_offStatus_en_onStatus_cr_offStatus_ew_offStatus_ex_off

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Taxonomy [top]

Kingdom Phylum Class Order Family
Plantae Tracheophyta Magnoliopsida Capparales Cruciferae

Scientific Name: Crambe pritzelii Bolle
Common Name(s):
Spanish Col de Risco
Taxonomic Notes: Crambe pritzelii Bolle is a wild relative of the oil producing and fodder crop, C. abyssinica R. E. Fr., as well as being related to other brassica crops as a member of the subtribe Brassicinae (tribe Brassiceae) (Maxted et al. in prep.).

Assessment Information [top]

Red List Category & Criteria: Endangered B1ab(iii,v)+2ab(iii,v) ver 3.1
Year Published: 2011
Date Assessed: 2010-04-16
Assessor(s): Santos Guerra, A.
Reviewer(s): Kell, S.P. & Nieto, A.
Contributor(s): Kell, S.P. & Hargreaves , S.
Justification:
Crambe pritzelii is assessed as Endangered. Its extent of occurrence (EOO) is less than 5,000 km2 and its area of occupancy (AOO) is less than 500 km2. The population is severely fragmented as it is found in isolated patches and the threats caused by invasive species and expanding human habitations is causing further isolation through habitat degradation and fragmentation. There is therefore a continuing decline in the area, extent and quality of habitat and in the number of mature individuals.

Geographic Range [top]

Range Description:C. pritzelii is endemic to Gran Canaria, where it is found in the lowlands of the north and east. Its extent of occurrence (EOO) is less than 5,000 km2 and its area of occupancy (AOO) is less than 500 km2.
Countries occurrence:
Native:
Spain (Canary Is.)
Additional data:
Lower elevation limit (metres):200
Upper elevation limit (metres):1000
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population:The population comprises small isolated groups of individual plants scattered throughout its range. The impact of invasive species and expansion of human habitations is causing increased fragmentation of the population.
Current Population Trend:Decreasing
Additional data:
Population severely fragmented:Yes

Habitat and Ecology [top]

Habitat and Ecology:This perennial species is found in lowland scrub and in Juniperus, Olea and laurisilva forests. It also grows outside the forests in steep, rocky areas.
Systems:Terrestrial
Continuing decline in area, extent and/or quality of habitat:Yes

Use and Trade [top]

Use and Trade: It is a wild relative of and potential gene donor to the oil producing and fodder crop, C. abyssinica, as well as being related to other brassica crops.

Threats [top]

Major Threat(s): It is threatened by invasive plant species such as Agave spp., Opuntia spp., Pelargonium spp. and Pennisetum spp., as well as human disturbance due to the close proximity of subpopulations to human habitations.

Conservation Actions [top]

Conservation Actions: The genus Crambe is listed in Annex I of the International Treaty on Plant Genetic Resources for Food and Agriculture as part of the brassica complex.

C. pritzelii is listed as Vulnerable (VU), C2a(i)) in the 2008 Red List of Vascular Plants of Spain (Moreno 2008).

Some subpopulations are found within protected areas, but these areas are affected by invasive species and there is no active management of the species.

EURISCO reports only one germplasm accession of C. pritzelii which is stored in the genebank of the Escuela Técnica Superior de Ingenieros Agrónomos, Universidad Politécnica de Madrid (EURISCO Catalogue 2010). Germplasm collection and duplicated ex situ storage is a priority for this species.

Classifications [top]

1. Forest -> 1.5. Forest - Subtropical/Tropical Dry
suitability:Suitable  major importance:Yes
1. Forest -> 1.9. Forest - Subtropical/Tropical Moist Montane
suitability:Suitable  major importance:Yes
3. Shrubland -> 3.5. Shrubland - Subtropical/Tropical Dry
suitability:Suitable  major importance:Yes
0. Root -> 6. Rocky areas (eg. inland cliffs, mountain peaks)
suitability:Suitable  major importance:Yes
1. Land/water protection -> 1.1. Site/area protection
2. Land/water management -> 2.1. Site/area management
2. Land/water management -> 2.2. Invasive/problematic species control
3. Species management -> 3.4. Ex-situ conservation -> 3.4.2. Genome resource bank

In-Place Research, Monitoring and Planning
In-Place Land/Water Protection and Management
  Occur in at least one PA:Yes
In-Place Species Management
  Subject to ex-situ conservation:Yes
In-Place Education
1. Residential & commercial development -> 1.1. Housing & urban areas
♦ timing:Ongoing ♦ scope:Minority (<50%) ♦ severity:Slow, Significant Declines ⇒ Impact score:Low Impact: 5 
→ Stresses
  • 1. Ecosystem stresses -> 1.2. Ecosystem degradation
  • 2. Species Stresses -> 2.1. Species mortality
  • 2. Species Stresses -> 2.2. Species disturbance

8. Invasive and other problematic species, genes & diseases -> 8.1. Invasive non-native/alien species/diseases -> 8.1.2. Named species
♦ timing:Ongoing ♦ scope:Minority (<50%) ♦ severity:Slow, Significant Declines ⇒ Impact score:Low Impact: 5 
→ Stresses
  • 1. Ecosystem stresses -> 1.2. Ecosystem degradation
  • 1. Ecosystem stresses -> 1.3. Indirect ecosystem effects
  • 2. Species Stresses -> 2.2. Species disturbance
  • 2. Species Stresses -> 2.3. Indirect species effects -> 2.3.2. Competition

8. Invasive and other problematic species, genes & diseases -> 8.1. Invasive non-native/alien species/diseases -> 8.1.2. Named species
♦ timing:Ongoing ♦ scope:Minority (<50%) ♦ severity:Slow, Significant Declines ⇒ Impact score:Low Impact: 5 
→ Stresses
  • 1. Ecosystem stresses -> 1.2. Ecosystem degradation
  • 1. Ecosystem stresses -> 1.3. Indirect ecosystem effects
  • 2. Species Stresses -> 2.2. Species disturbance
  • 2. Species Stresses -> 2.3. Indirect species effects -> 2.3.2. Competition

8. Invasive and other problematic species, genes & diseases -> 8.1. Invasive non-native/alien species/diseases -> 8.1.2. Named species
♦ timing:Ongoing ♦ scope:Minority (<50%) ♦ severity:Slow, Significant Declines ⇒ Impact score:Low Impact: 5 
→ Stresses
  • 1. Ecosystem stresses -> 1.2. Ecosystem degradation
  • 1. Ecosystem stresses -> 1.3. Indirect ecosystem effects
  • 2. Species Stresses -> 2.2. Species disturbance
  • 2. Species Stresses -> 2.3. Indirect species effects -> 2.3.2. Competition

8. Invasive and other problematic species, genes & diseases -> 8.1. Invasive non-native/alien species/diseases -> 8.1.2. Named species
♦ timing:Ongoing ♦ scope:Minority (<50%) ♦ severity:Slow, Significant Declines ⇒ Impact score:Low Impact: 5 
→ Stresses
  • 1. Ecosystem stresses -> 1.2. Ecosystem degradation
  • 1. Ecosystem stresses -> 1.3. Indirect ecosystem effects
  • 2. Species Stresses -> 2.2. Species disturbance
  • 2. Species Stresses -> 2.3. Indirect species effects -> 2.3.2. Competition

1. Research -> 1.2. Population size, distribution & trends
2. Conservation Planning -> 2.2. Area-based Management Plan
3. Monitoring -> 3.1. Population trends

♦  Other (free text)

Bibliography [top]

EURISCO Catalogue. http://eurisco.ecpgr.org. (Accessed: September 2010).

IUCN. 2011. IUCN Red List of Threatened Species (ver. 2011.1). Available at: http://www.iucnredlist.org. (Accessed: 30 June 2017).

Izquierdo, I. Martín, J.L., Zurita, N. and Arechavaleta, M. (eds.). 2004. Lista de especies silvestres de Canarias (hongos, plantas y animales terrestres) 2004. Consejería de Medio Ambiente y Ordenación Territorial, Gobierno de Canarias.

Maxted, N., Dobbie, S.L. and Kell, S.P. In prep. Global priorities for crop wild relative conservation as a means of underpinning food security.

Moreno, J.C. (coord.). 2008. Lista Roja 2008 de la Flora Vascular Española. Dirección General de Medio Natural y Política Forestal (Ministerio de Medio Ambiente, y Medio Rural y Marino, y Sociedad Española de Biología de la Conservación de Plantas), Madrid.


Citation: Santos Guerra, A. 2011. Crambe pritzelii. The IUCN Red List of Threatened Species 2011: e.T176604A7274882. . Downloaded on 23 September 2017.
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