Geelbobbejaantjie

Taxonomy
Scientific Name
Babiana pygmaea (Burm.f.) Baker
Higher Classification
Monocotyledons
Family
IRIDACEAE
Common Names
Geelbobbejaantjie (a)
National Status
Status and Criteria
Endangered B1ab(iii,v)+2ab(iii,v)
Assessment Date
2021/03/02
Assessor(s)
J.C. Manning, P. Goldblatt, T. Patel & L. von Staden
Justification
This species has an extent of occurrence (EOO) of 1 344 km², and an area of occupancy (AOO) of 88 km². It has five remaining locations, which continue to decline due to ongoing habitat degradation. It is therefore listed as Endangered under criteria B.
Distribution
Endemism
South African endemic
Provincial distribution
Western Cape
Range
It is endemic to South Africa, and is found in the coastal forelands between Hopefield and Darling in the Western Cape.
Habitat and Ecology
Major system
Terrestrial
Major habitats
Swartland Granite Renosterveld, Swartland Silcrete Renosterveld, Atlantis Sand Fynbos
Description
It occurs in seasonally damp sandy and gravelly flats and lower slopes in Swartland Granite Renosterveld.
Threats
This species has lost 66% of its habitat (calculated using landcover data in GIS) to crop cultivation, and only small fragments remain. These continue to be degraded predominantly due to dense infestations of unmanaged alien invasive plants, as well as heavy grazing in places.
Population

Only five known subpopulations remain around Darling, all occurring on small remnants of renosterveld. The largest subpopulation consists of at least 1000 mature individuals, while other subpopulations range between 50 and 250 mature individuals. The population is declining slowly due to ongoing habitat degradation. The first, in Klein Oude Post Reserve, 10-50 individuals were observed in 2004. In 2007, 50-100 individuals and a further 10-50 individuals were recorded. In 2008 and 2009, 250-500 individuals were recorded in each year. A further 500-1000 individuals were recorded in 2012 and 250-500 in 2014. The second subpopulation near Darling Burgherspost Wine estate recorded 3 individuals in 2010. Records were available for 2011, 2012, and 2020, however, no population numbers were given. The third subpopulation near Malmesbury and Mamre has mostly gone extinct. However, there is an extant population from 1974, 2011, and 2012. The 2012 record states 50 individuals are present. The fourth subpopulation, Koperfontein, had 50-100 individuals in 2016, and another record in 2017 with no indication of population size. Lastly, the subpopulation in Jan Zwarts Valley indicates that 100-250 individuals were observed.


Population trend
Decreasing
Assessment History
Taxon assessed
Status and Criteria
Citation/Red List version
Babiana pygmaea (Burm.f.) BakerCR B1ab(i,ii,iii,iv)Raimondo et al. (2009)
Babiana pygmaea (Burm.f.) BakerVulnerable Hilton-Taylor (1996)
Bibliography

Goldblatt, P. and Manning, J.C. 2000. Cape Plants: A conspectus of the Cape Flora of South Africa. Strelitzia 9. National Botanical Institute, Cape Town.


Goldblatt, P. and Manning, J.C. 2007. A revision of the southern African genus Babiana, Iridaceae, Crocoideae. Strelitzia 18:1-97. South African National Biodiversity Institute, Pretoria.


Goldblatt, P. and Manning, J.C. 2020. Iridaceae of southern Africa. Strelitzia 42. South African National Biodiversity Institute, Pretoria.


Hilton-Taylor, C. 1996. Red data list of southern African plants. Strelitzia 4. South African National Botanical Institute, Pretoria.


Manning, J., Goldblatt, P. and Snijman, D. 2002. The color encyclopedia of Cape bulbs. Timber Press, Portland/Cambridge.


Raimondo, D., von Staden, L., Foden, W., Victor, J.E., Helme, N.A., Turner, R.C., Kamundi, D.A. and Manyama, P.A. 2009. Red List of South African Plants. Strelitzia 25. South African National Biodiversity Institute, Pretoria.


Citation
Manning, J.C., Goldblatt, P., Patel, T. & von Staden, L. 2021. Babiana pygmaea (Burm.f.) Baker. National Assessment: Red List of South African Plants version . Accessed on 2025/01/17

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Distribution map

© R. Koopman

© J.C. Manning

© M. Treurnicht

© H. Preston

© H. Preston

© I. Ebrahim


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