Cyperus acholiensis

Larridon

Plante

CRLR Monde (IUCN)

Description

species of plant in Cyperaceae family endemic to Uganda

Filtrer le graphe par contexte spatialPays · région · aire protégée · écorégion · biome

Graphe en cours d’indexation

Calcul du tissu écologique de Cyperus acholiensis.

Le graphe apparaîtra automatiquement dès que le calcul est terminé (rafraîchissement toutes les 5s).

Liste rouge IUCN

CR · En danger critiquecritères B1ab(iii)+2ab(iii)?Inconnue

Évaluation complète

Évaluation: 2023 · v3.1
Altitude: 1200 – 1200 m
Profondeur: – m

État de la populationTexte officiel évaluation IUCNExpert

No numerical population information is available, and the current trend is unknown. However, the species is known only from the type specimen and is therefore suspected to be rare.

Menaces identifiées(4 menaces classées CMP-IUCN)

2_1_2
Small-holder farming
Rapid DeclinesWhole (>90%)Ongoing
5_3_3
Unintentional effects: (subsistence/small scale) [harvest]
UnknownWhole (>90%)Ongoing
6_2
War, civil unrest & military exercises
UnknownWhole (>90%)Ongoing
2_3_2
Small-holder grazing, ranching or farming
Ongoing

Description complète des menacesTexte détaillé évaluation IUCNExpert

This species occurs in Uganda, where it is known only from the type locality in Agoro-Agu Central Forest Reserve. This is an extension of Imatong Mountains in South Sudan into the Northern Region of Uganda (Zhao et al. 2018). The reserve is reported to be experiencing intensive urban encroachment, including agricultural cultivation, felling of trees, and rearing of livestock (Okullo et al. 2021). Overexploitation for various forest products is also reported (Olanya 2020). Conflicts in the area have exacerbated the encroachment, forcing communities to move to higher ground and converting large areas to farmland as the population resettles (NFA 2018, Okullo et al. 2021). Additionally, the boundaries of the reserve are unclear making it difficult to manage, and as a result activities such as wheat and barley agriculture are unregulated (Zake et al. 2016).

Habitats préférentiels (classification IUCN)

1_6Forest - Subtropical/Tropical Moist Lowland
2_1Savanna - Dry

Mesures de conservation recommandéesStratégies de conservation IUCNExpert

There are currently no known ex situ conservation sites for this species (BGCI 2022). The species occurs within the Agoro-Agu Central Forest Reserve (UNEP-WCMC and IUCN 2022).

Actions de conservation (2)Conservation Actions Classification Scheme — IUCNExpert

2_1Site/area management
3_4_2Genome resource bank

Stress écologiques (13)Stresses Classification — IUCNExpert

1_1Ecosystem conversion
1_1Ecosystem conversion
1_2Ecosystem degradation
1_2Ecosystem degradation
1_2Ecosystem degradation
1_2Ecosystem degradation
2_1Species mortality
2_1Species mortality
2_1Species mortality
2_2Species disturbance
2_2Species disturbance
2_2Species disturbance
2_2Species disturbance

Priorités de recherche (3)Research Needed Classification — IUCNExpert

1_2Population size, distribution & trends
1_3Life history & ecology
3_1Population trends

Niche IUCN globaleRealms · Systems · LMEs · Growth forms · FAOs — biogéographie IUCNExpert

Royaumes biogéographiques

Afrotropical

Systèmes (terrestre/eau douce/marin)

Terrestrial

Formes de croissance

Forb or Herb

Références bibliographiques (13)Sources scientifiques de l'évaluation IUCNExpert

IUCN. 2023. The IUCN Red List of Threatened Species. Version 2023-1. Available at: <a href="www.iucnredlist.org">www.iucnredlist.org</a>. (Accessed: 07 December 2023).
BGCI. 2022. Botanic Gardens Conservation International (BGCI) - PlantSearch. Available at: <a href="https://tools.bgci.org/plant_search.php">https://tools.bgci.org/plant_search.php</a>. (Accessed: 2022).
UNEP-WCMC and IUCN. 2022. Protected Planet: The World Database on Protected Areas (WDPA) and World Database on Other Effective Area-based Conservation Measures (WD-OECM) [Online]. Cambridge, UK. UNEP-WCMC and IUCN. Available at: <a href="https://www.protectedplanet.net">https://www.protectedplanet.net</a>. (Accessed: 1 January 2022, 2021).
Okullo, J.B.L., Afai, S., Nangendo, G. and Kalema, J. 2021. Tree species composition and diversity in Agoro-Agu Central Forest Reserve, Lamwo District, northern Uganda. International Journal of Biodiversity and Conservation 13(3): 127-143.
POWO. 2021. Plants of the world. England Available at: <a href="http://powo.science.kew.org/">http://powo.science.kew.org/</a>. (Accessed: 31 agosto 2021).
Olanya, P.B. 2020. Environmental determinants of woody species distribution patterns in Agoro-Agu Central Forest Reserve, northern Uganda. Journal of Ecosystem and Ecography 10: 268.
Zhao, Y., Feng, D., Jayaraman, D., Belay, D., Sebrala, H., Ngugi, J., Maina, E., Akombo, R., Otuoma, J., Mutyaba, J., Kissa, S., Qi, S., Assefa, F., Mugure Oduor, N., Kalema Ndawula, A., Li, Y. and Gong, P. 2018. Bamboo mapping of Ethiopia, Kenya and Uganda for the year 2016 using multi-temporal Landsat imagery. International Journal of Applied Earth Observation and Geoinformation 66: 116-125.
NFA (National Forestry Authority). 2018. Revised Forest Management Plan for Agoro-Agu Sector Central Forest Reserves for the Period: 1st July 2018–30th June 2028. Kampala, Uganda.
Zake, J., Sekate, M. and Herbert, W. 2016. Key issues limiting sustainable management of central forest reserves in Uganda; A case of Zoka and Agoro-Agu central forest reserves. Environmental Alert.
van Breugel P, Kindt R, Lillesø JPB, Bingham M, Demissew S, Dudley C, Friis I, Gachathi F, Kalema J, Mbago F, Moshi HN, Mulumba, J, Namaganda M, Ndangalasi HJ, Ruffo CK, Védaste M, Jamnadass R and Graudal L. 2015. Potential Natural Vegetation Map of Eastern Africa (Burundi, Ethiopia, Kenya, Malawi, Rwanda, Tanzania, Uganda and Zambia). Version 2.0. Forest & Landscape Denmark and World Agroforestry Centre (ICRAF). Available at: <a href="http://vegetationmap4africa.org">http://vegetationmap4africa.org</a>.
Bachman, S., Moat, J., Hill, A.W., de la Torre, J. and Scott, B. 2011. Supporting Red List threat assessments with GeoCAT: geospatial conservation assessment tool. In: V. Smith and L. Penev (eds) e-Infrastructures for data publishing in biodiversity science. Zookeys 150: 117–126.
Hoenselaar, K., Verdcourt, B. and Beentje, H. 2010. Cyperaceae. In: H.J. Beentje (ed.), The Flora of Tropical East Africa, RBG Kew.
Langdale-Brown, I., Osmaston, H.A. and Wilson, J.G. 1964. The Vegetation of Uganda and its Bearing on Land-Use. Uganda Government Printer, Entebbe.

Évaluateurs & contributeurs (4)Personnes ayant contribué à l'évaluation IUCNExpert

assessor

Rotton, H., Kalema, J., Ojelel, S. & Richards, S.L.

contributor

Phillips, C. & Mukasa, K.

evaluator

Bulafu, C., Ipulet, P., Kabasindi, H., Kebirungi, P., Kokugonza, H., Kuganyirwa, L., Mucunguzi, P., Muhairwe, T., Mutegeki, A., Mwodi, M., Namaganda, M., Nkwanga, D., Nyadoi, P., Odoi, J., Walaita, S. & Serunjogi, D.

facilitators

Plummer, J.

Rotton, H., Kalema, J., Ojelel, S. & Richards, S.L. 2023. Cyperus acholiensis. The IUCN Red List of Threatened Species 2023: e.T216256186A216662375. Accessed on 05 May 2026.