Nguti forests

CMNTIPA043
Nguti forests

Country: Cameroon

Administrative region: Southwest (Region)

Central co-ordinates: 5.29790 N, 9.35640 E

Area: 1142km²

Qualifying IPA Criteria

A(i)Site contains one or more globally threatened species

IPA assessment rationale

The site qualifies as an IPA under criterion A(i) due to the considerable number of globally threatened species with populations of national or international importance.

Site description

This site is based on an area of predominantly lowland rainforest investigated through the European Forestry Institute (EFI) funded rapid botanical survey (RBS) performed by Dr Peguy Tchouto and colleagues and reported by Hawthorne (2015). It fills a gap between three major protected areas, Korup National Park, Banyang Mbo Wildlife Sanctuary and Bakossi National Park, an area previously suspected to be of botanical importance (Philips & Miller, 2002; Cheek et al., 2004) but with few collected specimens. The boundary demarcated here is based on a maximal inclusive polygon incorporating the 25 sample locations of the RBS team with an enlargement of c. 2 km added to the coordinates of the outer points. The boundary was additionally modified slightly along the western and eastern boundaries to adjoin Korup National Park and Banyang Mbo Wildlife Sanctuary respectively, to incorporate a few species records near Ntale in the east, and to avoid ovelap with the two parts of FMU 11-008 in the southeast. The towns of Nguti and Manyemen are within the site along the N8 Kumba-Mamfe road, which bisects the site from north to south.

Botanical significance

A large number of globally threatened and sub-endemic species have been recorded from the relatively little collecting that has been done in the region. Cola metallica (CR), Tricalysia lejolyana (EN), Cola suboppositifolia (EN) and Warneckea ngutiensis (CR) are recorded from the site close to Banyang Mbo Wildlife Sanctuary and are included in both TIPA sites, although the latter is thus far known from a single collection and therefore could be endemic to Nguti.
While the terrain rises to over 1000 m in the northwest of the site, all the sample locations were below 500 m and therefore the submontane flora is little known and there are notably few orchids recorded. None of the recorded species are endemic to the site itself. This is probably due to the rapid survey method which might fail to record or recognise undescribed species from the often infertile specimens collected.
Not surprisingly, the flora has affinities with nearby sites, Korup, Rumpi Hills, Bakossi National Park and Bayang Mbo. Several of the taxa listed here are otherwise known only from one of these sites, such as Keetia bakossiorum, Deinbollia unijuga and Memecylon bakossiense. Calpocalyx cauliflorus (VU), Hugonia macrophylla (VU) and Uvariopsis korupensis (EN).
The site also shares affinities with more distant sites in the south of Cameroon such as the Ngovayang massif and Campo Ma'an. This is likely due to the lowland nature of these sites. Some of these records represent a significant northern range expansion, such as Rinorea microglossa, Dictyophleba setosa, Heckeldora leptotricha and Lychnodiscus brevibracteatus and should be treated with some caution.
Although not globally threatened, Microcoelia bulbocalcarata, has a highly disjunct distribution, and is only known in Cameroon from one collection near Nguti, close to Banyang Mbo.
Amongst the social, economic and culturally important species recorded are Microberlinia bisulcata (CR) a valuable "zebrawood" timber.

Habitat and geology

The site has a high-rainfall, seasonal climate with mean annual rainfall of 3,725 mm recorded at Nguti, peaking at 620 mm in July and dropping to 30 mm in January and December (Rodewald et al., 1994). However, rainfall is likely to vary across the site, with only 2,200 mm recorded at the Ikenge Research Station west of the site. Nguti would appear to lie within a rainshadow so this data is surprising and may be an anomaly due to the short (2 year) recording period. An average of 2,646 mm is elsewhere cited for Nguti municipality (Nguti Council, 2009; data for years 2005-2008). Mean monthly minima and maxima at Nguti ranged from 23.0 to 32.6 °C between September 1991 and August 1992 and from 17.5 to 33.2 °C over a 27 month period at IRS where the dense forest may contribute a cooling effect (Rodewald et al., 1994).
The terrain is mainly fairly flat at around 300 m but the hills directly west of Nguti rise to over 1,000 m near the northwestern border, while in the southwest the terrain also rises towards the Rumpi Hills region, reaching 1000 m within the proposed IPA area. Southeast of Manyemen the terrain also rises to over 700 m. Geologically the area lies at the boundary of the volcanic Mount Cameroon Line and more ancient, weathered basement rocks which underlie Korup National Park to the west. Soils are indicated as predominantly red basic and acid yellow ferralitic sesquioxides (ORSTOM, 1970; Letozey, 1985) or as Haplic Nitisols in association with Rhodic Nitisols (Yerima & Van Ranst, 2005).
The site is mostly covered in closed rainforest, mapped by Letouzey (1985) as type 228, "Atlantic Biafran forest with Caeslapiniaceae", with more semi-deciduous elements in the south towards the Rumpi Hills (type 205) and submontane forest on the higher hills. Along the Kumba-Mamfe road the forest is cleared around several towns (Nguti, Manyemen, Bayib-Asibong) and there are further large areas of farmland and degraded land along the D100a road west of Manyemen. A substantial area has been degraded or converted to palm oil plantation east of the Kumba-Mamfe road south of Manyemen. However, further areas demarcated as palm oil plantations in the southwest around Sambaliba, and east of Nguti adjacent to Banyang Mbo reserve still appear on satellite imagery to have mainly intact forest (GlobalForestWatch, 2021).

Conservation issues

The site was threatened with a very large palm oil project which received significant attention from local people, conservation organisations and media. After an initial 73,000 ha planned development, 20,000 ha were granted through Presidential decrees in 2013 (416-418) and an area of 882 ha was estimated to have been cleared between December 2011 and March 2016 (Greenpeace, 2016). There were numerous accusations of illegal expropriation of local farmers and other objections. Although the American company Herakles Farms withdraw from the project, forest clearance was reported to have continued and even increased under new ownership (Cannon, 2016). This can be seen starkly on satellite imagery in the concession area south of Manyemen and east of the N8 road but not in the other areas (GlobalForestWatch, 2021). However, there is also considerable tree cover loss in other areas of the site south of Nguti around this time, perhaps indirectly related to these plantations. The SGSOC lease was due to expire in November 2016 (Deugogue, 2016).
In addition to the palm oil concessions, the IPA area also includes 4 community forests (covering c. 13,000 ha), parts of Nguti and Mamfe council forests (c. 17,000 ha) and parts of FMUs 11-006 and 11-001 (c. 6,500 ha).
Much of the data assembled here is based on a survey conducted partly in response to the disputed environmental study performed for Herakles-SGSOC which was used to argue the forest was largely degraded with relatively low conservation value (Asamoah, 2011; Kupsch et al., 2014; Hawthorne, 2015). Not surprisingly, however, given the location of the site surrounded by five major conservation areas (Korup N.P., Bakossi N.P., Rumpi Hills, Banyang Mbo Wildlife Sanctuary and Nta Ali Forest Reserve), the area was revealed to be of high conservation value, with 23 large mammals recorded and all threatened animals known from Korup present, including Critically Endangered Forest Elephants and Endangered Nigeria-Cameroon Chimpanzees and Drills, as well as the many plant species of conservation importance listed here (Kupsch et al., 2014; Hawthorne, 2015).
It should be noted that to the west of the southern part of the site, the area of forest between Korup and Rumpi Hills has also been targeted with a SGSOC concession plot. Although Kupsch et al (2014) also reported high numbers of trees of conservation importance from this plot, the area is not included in the IPA proposed here as it was was not included in Hawthorne (2015) and would constitute a considerable enlargement of an already large site. It is likely to warrant inclusion as a separate IPA. Several rare species have also been collected south of the site, around the village of Mbu.

Ecosystem services

Kupsch et al. (2014) estimated the total carbon stock for the concession area as 259 t/ha. Extrapolating this to the entire area designated here would give a total of 29.6 Gt biomass carbon stock. Based on an carbon stock estimate for oil palm plantations of 38.8 t/C ha, the forest can be estimated to be sequestering c. 220 tC/ha compared to this alternative land use. While these estimates take into account below ground biomass, they do not include soil carbon. Kupsch et al. (2014) use an estimate of 40.8 tC/ha loss of soil carbon from conversion to oil palm and then calculate a total CO2 emission value of 957 tCO2e/ha. This gives an estimate of 109.3 Gt CO2e for the whole designated IPA area. While this estimate is likely too high due to not taking into account existing degraded areas, palm oil has a relatively higher carbon stock than some other likely land uses.
Local opposition to the oil palm plantations has largely been motivated by conflict over land for farming which also threatens the forest and biodiversity. However, the forest provides other products of value. According to Rainforest Foundation (2016) Farming is the main economic activity (70%), followed by hunting (20%), fishing (5%) and non-timber forest products (NTFPs, 5%). Cocoa is the main crop by area and is often grown in forest shade. Loss of forest threatens water supplies and fish stocks. Much timber is also harvested, for both local use and export (Nguti Council, 2009).

Site assessor(s)

Bruce Murphy, Royal Botanic Gardens, Kew

IPA criterion A species

Species Qualifying sub-criterion ≥ 1% of global population ≥ 5% of national population 1 of 5 best sites nationally Entire global population Socio-economically important Abundance at site
Pradosia spinosa Ewango & Breteler A(i) True True True False False
Memecylon bakossiense R.D.Stone, Ghogue & Cheek A(i) True True True False False
Keetia bakossiorum Cheek A(i) True True True False False
Microberlinia bisulcata A.Chev. A(i) True False False False False
Chassalia laikomensis Cheek A(i), A(iii) False False False False False
Rothmannia ebamutensis Sonké A(i) True True True False False
Uvariopsis korupensis Gereau & Kenfack A(i) True True True False False
Deinbollia unijuga D.W.Thomas A(i) True True True False False
Thyrsosalacia pararacemosa N.Hallé A(i) True True True False False
Psychotria njumei Cheek A(i) False True True False False
Millettia laurentii de Wild. A(i) False True True False True
Amphiblemma amoenum Jacq.-Fél. A(i) True True True False False
Trichilia zewaldae J.J.de Wilde A(i), A(iii) True True True False False
Aulacocalyx mapiana Sonké & Bridson A(i), A(iii) True True False False False
Ancistrocladus grandiflorus Cheek A(i) True True True False False
Psychotria darwiniana Cheek A(i) True True True False False
Boutiquea platypetala (Engl. & Diels) Le Thomas A(i) True False False False False
Amorphophallus preussii (Engl.) N.E.Br. A(i) True True True False False
Pyrenacantha longirostrata Villiers A(i) True True True False False
Cola megalophylla Brenan & Keay A(i) True True True False False
Rhipidoglossum obanense (Rendle) Summerh. A(i) True True True False False
Psychotria podocarpa Petit A(i) True True False False False
Calpocalyx cauliflorus Hoyle A(i) True True True False False
Afzelia pachyloba Harms A(i) False False False False True
Hugonia macrophylla Oliv. A(i) True True True False False
Baillonella toxisperma Pierre A(i) False False False False True
Uvariodendron giganteum (Engl.) R.E.Fr. A(i) True True False False True
Cordia platythyrsa Baker A(i) False False False False True
Terminalia ivorensis A.Chev. A(i) False False False False True
Angylocalyx talbotii Baker f. ex Hutch. & Dalziel A(i) False True False False False
Afrostyrax lepidophyllus Mildbr. A(i) False True True False False
Calycosiphonia macrochlamys (K.Schum.) Robbr. A(i) False True False False False
Staurogyne bicolor (Mildbr.) Champl. A(i) True True False False False
Strychnos elaeocarpa Gilg ex Leeuwenb. A(i) True True True False False
Strychnos mimfiensis Gilg ex Leeuwenb. A(i) True True True False False
Salacia lenticellosa Loes. ex Harms A(i) True True True False False
Loesenera talbotii Baker f. A(i) True True False False False
Crateranthus talbotii Baker f. A(i) True True False False False
Napoleonaea egertonii Baker f. A(i) True True True False False
Drypetes staudtii (Pax) Hutch. A(i) True False False False False
Garcinia staudtii Engl. A(i) True False False False False
Lophira alata Banks ex Gaertn.f. A(i) False False False False True
Antrocaryon micraster A.Chev. & Guillaumin A(i) False False False False True
Chassalia manningii O.Lachenaud ined. A(i) True True True False False
Balonga buchholzii (Engl. & Diels) Le Thomas A(i) True True True False False
Berlinia hollandii Hutch. & Dalziel A(i) True True True False False
Begonia prismatocarpa Hook. subsp. delobata Sosef A(i) True True True False False
Diaphananthe bueae (Schltr.) Schltr. A(i) True False False False False
Chazaliella obanensis (Wernham) Petit & Verdc. A(i) True False False False False
Bulbophyllum teretifolium Schltr. A(i) True True True False False
Cola metallica Cheek A(i) True True True False False
Warneckea ngutiensis R. D. Stone A(i) True True True True False
Tricalysia lejolyana Sonké & Cheek A(i) True True True False False
Ancistrocladus korupensis D.W.Thomas & Gereau A(i) True True True False False
Cola suboppositifolia Cheek A(i) True True True False False
Allophylus conraui Gilg ex Radlk. A(i) True True True False False
Grossera major Pax A(i) True True True False False
Piptostigma goslineanum Ghogue, Sonké & Couvreur A(i) True True True False False
Aframomum plicatum D.J.Harris & Wortley A(i) True True True False False
Aframomum tchoutoui D.J.Harris & Wortley A(i) True True True False False
Entandrophragma candollei Harms A(i) False False False False True
Memecylon dasyanthum Gilg & Ledermann ex Engl. A(i) True False False False True
Afrofittonia silvestris Lindau A(i) False False False False False
Aframomum makandensis Dhetchuvi A(i) True True True False False
Ormocarpum klainei Tisser. A(i) True True True False False

Pradosia spinosa Ewango & Breteler

Qualifying sub-criterion:
A(i)
≥ 1% of global population:
True
≥ 5% of national population:
True
1 of 5 best sites nationally:
True
Entire global population:
False
Socio-economically important:
False
Abundance at site:

Memecylon bakossiense R.D.Stone, Ghogue & Cheek

Qualifying sub-criterion:
A(i)
≥ 1% of global population:
True
≥ 5% of national population:
True
1 of 5 best sites nationally:
True
Entire global population:
False
Socio-economically important:
False
Abundance at site:

Keetia bakossiorum Cheek

Qualifying sub-criterion:
A(i)
≥ 1% of global population:
True
≥ 5% of national population:
True
1 of 5 best sites nationally:
True
Entire global population:
False
Socio-economically important:
False
Abundance at site:

Microberlinia bisulcata A.Chev.

Qualifying sub-criterion:
A(i)
≥ 1% of global population:
True
≥ 5% of national population:
False
1 of 5 best sites nationally:
False
Entire global population:
False
Socio-economically important:
False
Abundance at site:

Chassalia laikomensis Cheek

Qualifying sub-criterion:
A(i), A(iii)
≥ 1% of global population:
False
≥ 5% of national population:
False
1 of 5 best sites nationally:
False
Entire global population:
False
Socio-economically important:
False
Abundance at site:

Rothmannia ebamutensis Sonké

Qualifying sub-criterion:
A(i)
≥ 1% of global population:
True
≥ 5% of national population:
True
1 of 5 best sites nationally:
True
Entire global population:
False
Socio-economically important:
False
Abundance at site:

Uvariopsis korupensis Gereau & Kenfack

Qualifying sub-criterion:
A(i)
≥ 1% of global population:
True
≥ 5% of national population:
True
1 of 5 best sites nationally:
True
Entire global population:
False
Socio-economically important:
False
Abundance at site:

Deinbollia unijuga D.W.Thomas

Qualifying sub-criterion:
A(i)
≥ 1% of global population:
True
≥ 5% of national population:
True
1 of 5 best sites nationally:
True
Entire global population:
False
Socio-economically important:
False
Abundance at site:

Thyrsosalacia pararacemosa N.Hallé

Qualifying sub-criterion:
A(i)
≥ 1% of global population:
True
≥ 5% of national population:
True
1 of 5 best sites nationally:
True
Entire global population:
False
Socio-economically important:
False
Abundance at site:

Psychotria njumei Cheek

Qualifying sub-criterion:
A(i)
≥ 1% of global population:
False
≥ 5% of national population:
True
1 of 5 best sites nationally:
True
Entire global population:
False
Socio-economically important:
False
Abundance at site:

Millettia laurentii de Wild.

Qualifying sub-criterion:
A(i)
≥ 1% of global population:
False
≥ 5% of national population:
True
1 of 5 best sites nationally:
True
Entire global population:
False
Socio-economically important:
True
Abundance at site:

Amphiblemma amoenum Jacq.-Fél.

Qualifying sub-criterion:
A(i)
≥ 1% of global population:
True
≥ 5% of national population:
True
1 of 5 best sites nationally:
True
Entire global population:
False
Socio-economically important:
False
Abundance at site:

Trichilia zewaldae J.J.de Wilde

Qualifying sub-criterion:
A(i), A(iii)
≥ 1% of global population:
True
≥ 5% of national population:
True
1 of 5 best sites nationally:
True
Entire global population:
False
Socio-economically important:
False
Abundance at site:

Aulacocalyx mapiana Sonké & Bridson

Qualifying sub-criterion:
A(i), A(iii)
≥ 1% of global population:
True
≥ 5% of national population:
True
1 of 5 best sites nationally:
False
Entire global population:
False
Socio-economically important:
False
Abundance at site:

Ancistrocladus grandiflorus Cheek

Qualifying sub-criterion:
A(i)
≥ 1% of global population:
True
≥ 5% of national population:
True
1 of 5 best sites nationally:
True
Entire global population:
False
Socio-economically important:
False
Abundance at site:

Psychotria darwiniana Cheek

Qualifying sub-criterion:
A(i)
≥ 1% of global population:
True
≥ 5% of national population:
True
1 of 5 best sites nationally:
True
Entire global population:
False
Socio-economically important:
False
Abundance at site:

Boutiquea platypetala (Engl. & Diels) Le Thomas

Qualifying sub-criterion:
A(i)
≥ 1% of global population:
True
≥ 5% of national population:
False
1 of 5 best sites nationally:
False
Entire global population:
False
Socio-economically important:
False
Abundance at site:

Amorphophallus preussii (Engl.) N.E.Br.

Qualifying sub-criterion:
A(i)
≥ 1% of global population:
True
≥ 5% of national population:
True
1 of 5 best sites nationally:
True
Entire global population:
False
Socio-economically important:
False
Abundance at site:

Pyrenacantha longirostrata Villiers

Qualifying sub-criterion:
A(i)
≥ 1% of global population:
True
≥ 5% of national population:
True
1 of 5 best sites nationally:
True
Entire global population:
False
Socio-economically important:
False
Abundance at site:

Cola megalophylla Brenan & Keay

Qualifying sub-criterion:
A(i)
≥ 1% of global population:
True
≥ 5% of national population:
True
1 of 5 best sites nationally:
True
Entire global population:
False
Socio-economically important:
False
Abundance at site:

Rhipidoglossum obanense (Rendle) Summerh.

Qualifying sub-criterion:
A(i)
≥ 1% of global population:
True
≥ 5% of national population:
True
1 of 5 best sites nationally:
True
Entire global population:
False
Socio-economically important:
False
Abundance at site:

Psychotria podocarpa Petit

Qualifying sub-criterion:
A(i)
≥ 1% of global population:
True
≥ 5% of national population:
True
1 of 5 best sites nationally:
False
Entire global population:
False
Socio-economically important:
False
Abundance at site:

Calpocalyx cauliflorus Hoyle

Qualifying sub-criterion:
A(i)
≥ 1% of global population:
True
≥ 5% of national population:
True
1 of 5 best sites nationally:
True
Entire global population:
False
Socio-economically important:
False
Abundance at site:

Afzelia pachyloba Harms

Qualifying sub-criterion:
A(i)
≥ 1% of global population:
False
≥ 5% of national population:
False
1 of 5 best sites nationally:
False
Entire global population:
False
Socio-economically important:
True
Abundance at site:

Hugonia macrophylla Oliv.

Qualifying sub-criterion:
A(i)
≥ 1% of global population:
True
≥ 5% of national population:
True
1 of 5 best sites nationally:
True
Entire global population:
False
Socio-economically important:
False
Abundance at site:

Baillonella toxisperma Pierre

Qualifying sub-criterion:
A(i)
≥ 1% of global population:
False
≥ 5% of national population:
False
1 of 5 best sites nationally:
False
Entire global population:
False
Socio-economically important:
True
Abundance at site:

Uvariodendron giganteum (Engl.) R.E.Fr.

Qualifying sub-criterion:
A(i)
≥ 1% of global population:
True
≥ 5% of national population:
True
1 of 5 best sites nationally:
False
Entire global population:
False
Socio-economically important:
True
Abundance at site:

Cordia platythyrsa Baker

Qualifying sub-criterion:
A(i)
≥ 1% of global population:
False
≥ 5% of national population:
False
1 of 5 best sites nationally:
False
Entire global population:
False
Socio-economically important:
True
Abundance at site:

Terminalia ivorensis A.Chev.

Qualifying sub-criterion:
A(i)
≥ 1% of global population:
False
≥ 5% of national population:
False
1 of 5 best sites nationally:
False
Entire global population:
False
Socio-economically important:
True
Abundance at site:

Angylocalyx talbotii Baker f. ex Hutch. & Dalziel

Qualifying sub-criterion:
A(i)
≥ 1% of global population:
False
≥ 5% of national population:
True
1 of 5 best sites nationally:
False
Entire global population:
False
Socio-economically important:
False
Abundance at site:

Afrostyrax lepidophyllus Mildbr.

Qualifying sub-criterion:
A(i)
≥ 1% of global population:
False
≥ 5% of national population:
True
1 of 5 best sites nationally:
True
Entire global population:
False
Socio-economically important:
False
Abundance at site:

Calycosiphonia macrochlamys (K.Schum.) Robbr.

Qualifying sub-criterion:
A(i)
≥ 1% of global population:
False
≥ 5% of national population:
True
1 of 5 best sites nationally:
False
Entire global population:
False
Socio-economically important:
False
Abundance at site:

Staurogyne bicolor (Mildbr.) Champl.

Qualifying sub-criterion:
A(i)
≥ 1% of global population:
True
≥ 5% of national population:
True
1 of 5 best sites nationally:
False
Entire global population:
False
Socio-economically important:
False
Abundance at site:

Strychnos elaeocarpa Gilg ex Leeuwenb.

Qualifying sub-criterion:
A(i)
≥ 1% of global population:
True
≥ 5% of national population:
True
1 of 5 best sites nationally:
True
Entire global population:
False
Socio-economically important:
False
Abundance at site:

Strychnos mimfiensis Gilg ex Leeuwenb.

Qualifying sub-criterion:
A(i)
≥ 1% of global population:
True
≥ 5% of national population:
True
1 of 5 best sites nationally:
True
Entire global population:
False
Socio-economically important:
False
Abundance at site:

Salacia lenticellosa Loes. ex Harms

Qualifying sub-criterion:
A(i)
≥ 1% of global population:
True
≥ 5% of national population:
True
1 of 5 best sites nationally:
True
Entire global population:
False
Socio-economically important:
False
Abundance at site:

Loesenera talbotii Baker f.

Qualifying sub-criterion:
A(i)
≥ 1% of global population:
True
≥ 5% of national population:
True
1 of 5 best sites nationally:
False
Entire global population:
False
Socio-economically important:
False
Abundance at site:

Crateranthus talbotii Baker f.

Qualifying sub-criterion:
A(i)
≥ 1% of global population:
True
≥ 5% of national population:
True
1 of 5 best sites nationally:
False
Entire global population:
False
Socio-economically important:
False
Abundance at site:

Napoleonaea egertonii Baker f.

Qualifying sub-criterion:
A(i)
≥ 1% of global population:
True
≥ 5% of national population:
True
1 of 5 best sites nationally:
True
Entire global population:
False
Socio-economically important:
False
Abundance at site:

Drypetes staudtii (Pax) Hutch.

Qualifying sub-criterion:
A(i)
≥ 1% of global population:
True
≥ 5% of national population:
False
1 of 5 best sites nationally:
False
Entire global population:
False
Socio-economically important:
False
Abundance at site:

Garcinia staudtii Engl.

Qualifying sub-criterion:
A(i)
≥ 1% of global population:
True
≥ 5% of national population:
False
1 of 5 best sites nationally:
False
Entire global population:
False
Socio-economically important:
False
Abundance at site:

Lophira alata Banks ex Gaertn.f.

Qualifying sub-criterion:
A(i)
≥ 1% of global population:
False
≥ 5% of national population:
False
1 of 5 best sites nationally:
False
Entire global population:
False
Socio-economically important:
True
Abundance at site:

Antrocaryon micraster A.Chev. & Guillaumin

Qualifying sub-criterion:
A(i)
≥ 1% of global population:
False
≥ 5% of national population:
False
1 of 5 best sites nationally:
False
Entire global population:
False
Socio-economically important:
True
Abundance at site:

Chassalia manningii O.Lachenaud ined.

Qualifying sub-criterion:
A(i)
≥ 1% of global population:
True
≥ 5% of national population:
True
1 of 5 best sites nationally:
True
Entire global population:
False
Socio-economically important:
False
Abundance at site:

Balonga buchholzii (Engl. & Diels) Le Thomas

Qualifying sub-criterion:
A(i)
≥ 1% of global population:
True
≥ 5% of national population:
True
1 of 5 best sites nationally:
True
Entire global population:
False
Socio-economically important:
False
Abundance at site:

Berlinia hollandii Hutch. & Dalziel

Qualifying sub-criterion:
A(i)
≥ 1% of global population:
True
≥ 5% of national population:
True
1 of 5 best sites nationally:
True
Entire global population:
False
Socio-economically important:
False
Abundance at site:

Begonia prismatocarpa Hook. subsp. delobata Sosef

Qualifying sub-criterion:
A(i)
≥ 1% of global population:
True
≥ 5% of national population:
True
1 of 5 best sites nationally:
True
Entire global population:
False
Socio-economically important:
False
Abundance at site:

Diaphananthe bueae (Schltr.) Schltr.

Qualifying sub-criterion:
A(i)
≥ 1% of global population:
True
≥ 5% of national population:
False
1 of 5 best sites nationally:
False
Entire global population:
False
Socio-economically important:
False
Abundance at site:

Chazaliella obanensis (Wernham) Petit & Verdc.

Qualifying sub-criterion:
A(i)
≥ 1% of global population:
True
≥ 5% of national population:
False
1 of 5 best sites nationally:
False
Entire global population:
False
Socio-economically important:
False
Abundance at site:

Bulbophyllum teretifolium Schltr.

Qualifying sub-criterion:
A(i)
≥ 1% of global population:
True
≥ 5% of national population:
True
1 of 5 best sites nationally:
True
Entire global population:
False
Socio-economically important:
False
Abundance at site:

Cola metallica Cheek

Qualifying sub-criterion:
A(i)
≥ 1% of global population:
True
≥ 5% of national population:
True
1 of 5 best sites nationally:
True
Entire global population:
False
Socio-economically important:
False
Abundance at site:

Warneckea ngutiensis R. D. Stone

Qualifying sub-criterion:
A(i)
≥ 1% of global population:
True
≥ 5% of national population:
True
1 of 5 best sites nationally:
True
Entire global population:
True
Socio-economically important:
False
Abundance at site:

Tricalysia lejolyana Sonké & Cheek

Qualifying sub-criterion:
A(i)
≥ 1% of global population:
True
≥ 5% of national population:
True
1 of 5 best sites nationally:
True
Entire global population:
False
Socio-economically important:
False
Abundance at site:

Ancistrocladus korupensis D.W.Thomas & Gereau

Qualifying sub-criterion:
A(i)
≥ 1% of global population:
True
≥ 5% of national population:
True
1 of 5 best sites nationally:
True
Entire global population:
False
Socio-economically important:
False
Abundance at site:

Cola suboppositifolia Cheek

Qualifying sub-criterion:
A(i)
≥ 1% of global population:
True
≥ 5% of national population:
True
1 of 5 best sites nationally:
True
Entire global population:
False
Socio-economically important:
False
Abundance at site:

Allophylus conraui Gilg ex Radlk.

Qualifying sub-criterion:
A(i)
≥ 1% of global population:
True
≥ 5% of national population:
True
1 of 5 best sites nationally:
True
Entire global population:
False
Socio-economically important:
False
Abundance at site:

Grossera major Pax

Qualifying sub-criterion:
A(i)
≥ 1% of global population:
True
≥ 5% of national population:
True
1 of 5 best sites nationally:
True
Entire global population:
False
Socio-economically important:
False
Abundance at site:

Piptostigma goslineanum Ghogue, Sonké & Couvreur

Qualifying sub-criterion:
A(i)
≥ 1% of global population:
True
≥ 5% of national population:
True
1 of 5 best sites nationally:
True
Entire global population:
False
Socio-economically important:
False
Abundance at site:

Aframomum plicatum D.J.Harris & Wortley

Qualifying sub-criterion:
A(i)
≥ 1% of global population:
True
≥ 5% of national population:
True
1 of 5 best sites nationally:
True
Entire global population:
False
Socio-economically important:
False
Abundance at site:

Aframomum tchoutoui D.J.Harris & Wortley

Qualifying sub-criterion:
A(i)
≥ 1% of global population:
True
≥ 5% of national population:
True
1 of 5 best sites nationally:
True
Entire global population:
False
Socio-economically important:
False
Abundance at site:

Entandrophragma candollei Harms

Qualifying sub-criterion:
A(i)
≥ 1% of global population:
False
≥ 5% of national population:
False
1 of 5 best sites nationally:
False
Entire global population:
False
Socio-economically important:
True
Abundance at site:

Memecylon dasyanthum Gilg & Ledermann ex Engl.

Qualifying sub-criterion:
A(i)
≥ 1% of global population:
True
≥ 5% of national population:
False
1 of 5 best sites nationally:
False
Entire global population:
False
Socio-economically important:
True
Abundance at site:

Afrofittonia silvestris Lindau

Qualifying sub-criterion:
A(i)
≥ 1% of global population:
False
≥ 5% of national population:
False
1 of 5 best sites nationally:
False
Entire global population:
False
Socio-economically important:
False
Abundance at site:

Aframomum makandensis Dhetchuvi

Qualifying sub-criterion:
A(i)
≥ 1% of global population:
True
≥ 5% of national population:
True
1 of 5 best sites nationally:
True
Entire global population:
False
Socio-economically important:
False
Abundance at site:

Ormocarpum klainei Tisser.

Qualifying sub-criterion:
A(i)
≥ 1% of global population:
True
≥ 5% of national population:
True
1 of 5 best sites nationally:
True
Entire global population:
False
Socio-economically important:
False
Abundance at site:

General site habitats

General site habitat Percent coverage Importance
Forest - Subtropical/Tropical Moist Lowland Forest 84 Major
Artificial - Terrestrial - Subtropical/Tropical Heavily Degraded Former Forest 10
Artificial - Terrestrial - Plantations 1
Artificial - Terrestrial - Urban Areas 5

Forest - Subtropical/Tropical Moist Lowland Forest

Percent coverage:
84
Importance:
Major

Artificial - Terrestrial - Subtropical/Tropical Heavily Degraded Former Forest

Percent coverage:
10
Importance:

Artificial - Terrestrial - Plantations

Percent coverage:
1
Importance:

Artificial - Terrestrial - Urban Areas

Percent coverage:
5
Importance:

Land use types

Land use type Percent coverage Importance
Agriculture (arable) 10
Forestry 25 Unknown
Residential / urban development No value
Harvesting of wild resources No value Unknown

Agriculture (arable)

Percent coverage:
10
Importance:

Forestry

Percent coverage:
25
Importance:
Unknown

Residential / urban development

Percent coverage:
No value
Importance:

Harvesting of wild resources

Percent coverage:
No value
Importance:
Unknown

Threats

Threat Severity Timing
Agriculture & aquaculture - Annual & perennial non-timber crops - Shifting agriculture High Ongoing - increasing
Transportation & service corridors - Roads & railroads Medium Ongoing - increasing
Agriculture & aquaculture - Annual & perennial non-timber crops - Agro-industry farming High Ongoing - trend unknown
Biological resource use - Logging & wood harvesting Medium Ongoing - trend unknown
Human intrusions & disturbance - War, civil unrest & military exercises Medium Ongoing - trend unknown
Residential & commercial development Medium Ongoing - trend unknown

Agriculture & aquaculture - Annual & perennial non-timber crops - Shifting agriculture

Severity:
High
Timing:
Ongoing - increasing

Transportation & service corridors - Roads & railroads

Severity:
Medium
Timing:
Ongoing - increasing

Agriculture & aquaculture - Annual & perennial non-timber crops - Agro-industry farming

Severity:
High
Timing:
Ongoing - trend unknown

Biological resource use - Logging & wood harvesting

Severity:
Medium
Timing:
Ongoing - trend unknown

Human intrusions & disturbance - War, civil unrest & military exercises

Severity:
Medium
Timing:
Ongoing - trend unknown

Residential & commercial development

Severity:
Medium
Timing:
Ongoing - trend unknown

Protected areas

Protected area name Protected area type Relationship with IPA Areal overlap
Korup National Park National Park protected/conservation area is adjacent to IPA No value
Bakossi National Park National Park protected/conservation area is adjacent to IPA No value
Banyang Mbo Wildlife Sanctuary protected/conservation area is adjacent to IPA No value

Korup National Park

Protected area type:
National Park
Relationship with IPA:
protected/conservation area is adjacent to IPA
Areal overlap:
No value

Bakossi National Park

Protected area type:
National Park
Relationship with IPA:
protected/conservation area is adjacent to IPA
Areal overlap:
No value

Banyang Mbo

Protected area type:
Wildlife Sanctuary
Relationship with IPA:
protected/conservation area is adjacent to IPA
Areal overlap:
No value

Management type

Management type Description Year started Year finished
No management plan in place No value No value

No management plan in place

Year started:
No value
Year finished:
No value

Bibliography

Global Forest Watch, 2020

Global Forest Watch

Available online

Letouzey, R., 1985

Notice de la carte phytogéographique du Cameroun au 1: 500,000.

Cheek, M., Polllard, B., Darbyshire, I., Onana, J-M. & Wild, C., 2004

The Plants of Kupe, Mwanenenguba and the Bakossi Mountains, Cameroon: a conservation checklist

Yerima, B. & Van Ranst, E., 2005

Major Soil Classification Systems Used in the Tropics: Soils of Cameroon

Phillips, O. & Miller, J., 2002

Global Patterns of Plant Diversity: Alwyn H. Gentry's Forest Transect Data Set

Kupsch, D., Serge, B.K. & Waltert, M., 2014

Biodiversity, carbon stock and market value assessment for the SGSOC project area, Southwest region, Cameroon

Report submitted to World Wide Fund for Nature, Germany, and Greenpeace International Available online

Rodewald, P., Dejaifve, P., & Green, A., 1994

The birds of Korup National Park and Korup Project Area, Southwest Province, Cameroon

Bird Conservation International, Vol 4(1), page(s) 1-68

Asamoah, A., 2011

Assessment of High Conservation Value on the SGSOC concession for Oil Palm Development in South-Western Cameroon. Report to SG Sustainable Oils Cameroon.

Hawthorne, W., 2015

Rapid Botanic Survey (RBS) in Nguti, South West Cameroon: Botanical Annex for the EFI project: Support to the development of a Common Mapping Platform in Cameroon. Phase 2

Available online

Greenpeace, 2016

Herakles Farms / SGSOC: the chaotic history of a destructive palm oil project in Cameroon

Deugoue, S. D., 2016

Let’s stop SGSOC palm oil plantation project

Available online

Cannon, J., 2016

Unprecedented deforestation in old Herakles plantation, now under new management

Mongabay, 6 May 2016 Available online

Nguti Council, 2016

Monographic Study Nguti Council

Available online

Rainforest Foundation UK, 2016

Nguti Council, South-West Region, Republic of Cameroon. Forest Communities and their Traditional Way of Life

Available online

Recommended citation

Bruce Murphy (2024) Tropical Important Plant Areas Explorer: Nguti forests (Cameroon). https://tipas.kew.org/site/nguti-forests/ (Accessed on 21/05/2024)