| Lovoa swynnertonii
Meliaceae
Mukonguru
Distribution
This species
occurs in Kenya, Mozambique, Tanzania, Uganda, Zaire and Zimbabwe.
Habitat
It grows within
wet evergreen forest. In Kenya, this species prefers sandy or loamy soils
(FAO, 1986). In the Kwale district of Kenya this species is found in lowland
forests dominated by Newtonia paucijuga, Milicia excelsa and
Antiaris toxicaria and in the Meru district of Kenya it occurs in
upland forest dominated by Newtonia buchanannii and Ocotea usambarensis
(FAO, 1986). In Mozambique, this species is only known from the Garuso forests
and in Zimbabwe is only known from the Chirinda forest where it is found
on well-drained slopes of river banks (Flora Zambesiaca).
Population
Status and Trends
L. swynnertonii
is very sparsely distributed over its range and is only found in a few locations.
It is not regenerating well (FAO, 1986). This species is at the edge of
its range in Zimbabwe and is found in low densities in the Chirinda Forest
(6km˛) where there are over 1000 individuals but no saplings (African Regional
Workshop, 1996).
Regeneration
Seed is wind
dispersed. Natural regeneration is reported to be poor (FAO, 1986).
Role of Species
in its Ecosystem
No information.
Threats
This species
is suffering from habitat loss. Excessive exploitation of the large seed-producing
trees occurs and natural regeneration is poor. Plantations tend to be unsuccessful
because of infestation by Hypsipyla (FAO, 1986). In Uganda the species
is suffering from genetic erosion (Styles, in litt, 1991).
Utilisation
The timber
is used for furniture production and has been used in Kenya for bridge construction.
Trade
No information.
Conservation
Status
IUCN Category
and Criteria: EN (A1c,d) (African Regional Workshop, 1996)
This species'
distribution has been greatly reduced, only a few trees remain in Zimbabwe
and Mozambique (Styles, in litt, 1991). Bandeira (1996) considers
this species to be Data Deficient (DD) under the new IUCN (1994) threat
categories, due to lack of biological surveys in north Mozambique. L.
swynnertonii is also rare in Tanzania and Uganda as it is at the fringe
of its range (Styles, in litt., 1991). Styles (1991) felt that this
species deserves endangered status.
Conservation
Measures
This species
is found in a few protected forest reserves such as the Rau Forest, Tanzania,
the Chirinda Forest, Zimbabwe, and the Meru Forest, Kenya (FAO, 1986). In
Mozambique, there are no conservation measures being taken (Bandeira, in
litt., 1996). Regeneration work is urgently required (African Regional
Workshop, 1996).
References
African
Regional Workshop, 1996. Conservation and Sustainable Management
of Trees project workshop held in Harare, Zimbabawe, July, 1996.
Bandeira,
S., 1996. Application of the new IUCN categories to trees of Mozambique
for the WCMC Conservation and Sustainable Management of Trees Project.
FAO, 1986.
Databook on endangered tree and shrub species and provenances. FAO
Forestry Paper 77:Rome. pp. 524.
Flora Zambesiaca
Styles,
B.T., 1991. In Litt. Letter to Sara Oldfield.
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