International Journal of Mol. Ecol. and Conserv. 2015, Vol.5, No. 1, 1-6
Ber (
Berlinia grandiflora
)
,
Ani (
Anillopsis soyauxii
)
,
Spo
(
Spondias monbin
)
,
Mus
(
Musanga cercopioides
)
,
SAh
(
Autrenella congolensis
), BAh (Ballionoiia toxisperma), Roth
(Rothmannia longiflora), Xyl (Xylopia aethiopica), Dra
(
Dracaena manii
), SEi (
Celosia argentea
)
Figure 1: An aerial view of the forest structure in Okuku
fragment
Rauv (
Berlinia grandiflora
)
,
Holar (
Holarrhena floribunda
)
,
Ceiba (
Ceiba pentandra
), Ficus (
Ficus thoningii
), Spon
(
Spondias monbin
)
,
Homa
(
Homalium letestui
)
,
Dacro
(
Dacryodes edulis
), Xylop (
Xylopia aethiopica
), Coelo
(
Coelocaryon preusii
), Wei (
Tetrapleura tetraptera
), Macar
(
Macaranga barteri
), Cinna (
Cinnamomum zeylanicum
), Eryth
(
Erythrina senegalensis
)
Figure 2: An aerial view of the forest structure in Ikwat 1
fragment
Okuku fragment tree inventory
In the sample plot in Okuku forest fragment, a total of
23 trees were enumerated belonging to 10 families
and 10 species. The smallest tree height in the sample
plot had a diameter at breast height (dbh) greater than
10 cm was 6.8 m while the biggest tree reached a
height of 27.8 m with a mean tree height of 11.8 m
and a standard deviation of 6.1. The enumerated tree
in the Okuku sample plot had a minimum dbh of 10.2
cm and a maximum dbh of 108.6 cm with a mean dbh
of 33.8cm and a standard deviation of 31.9 (Figure 3).
The total basal area of trees above 10 cm in the
sample plot was 265.4 cm
3
which is equivalent to
4623.6 per acre (Figure 4). Nineteen (19) of the
sample trees were observed to belong to the height
class of 5–15 m while the other two height class of
16–25 m and 26–35 m had two trees each respectively
(Figure 5). However,
Anillopsis soyauxii
was observed
to be the most dominant tree in the sample tree
population with the highest frequency of 5 individual
trees, followed by
Berlinia grandiflora
with a
frequency of four individual trees while
Autrenella
congolensis
,
Ballionoiia toxisperma
and
Xylopia
aethiopica
had the least frequency of 1 individual
trees each (Figure 6).
Figure 3: Height and crown size distribution of trees in Okuku
fragment
Figure 4: Diameter class distribution of trees in Okuku
fragment
Figure 5: Height distribution of trees in Okuku and Ikwat 1
fragment
