Mullin, S. K., Taylor, P. J. & Pillay, N. 2004. Skull size and ... - Durban

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Mullin S. K. et al.
P R O O F
from Zimbabwe and the northern part of the Limpopo
Province, South Africa formed subcluster 1
while subcluster 2 comprised the remaining Limpopo
Province OTUs (a) and material from the
KwaZulu-Natal Province (b). Western Cape, South
Africa D. i. capensis was found in subcluster 3.
Fig. 5B showed Angolan D. incomtus (Cluster C)
and D. nudipes (Cluster A) to be distinct and
separate from South African and Zimbabwean
D. incomtus (Cluster B). The Okavango Delta
OTUs did not group with any of the Angolan
material (either D. incomtus or D. nudipes) and
instead was found within Cluster B1, with the
exception of Kasane, which grouped with Zimbabwe
individuals (Cluster B2). Dasymys i. capensis was
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A B
C D
FIG. 5. – Phenograms of smaller data subsets. (a) Traditional measurements of specimens from Malawi, Mozambique, South Africa,
Zambia and Zimbabwe (cophenetic correlation coefficient, 0.727). (b) Traditional measurements of specimens from Angola,
Botswana, Namibia, South Africa and Zimbabwe (0.839). (c) Dorsal weight matrix of specimens from Angola, Democratic Republic of
Congo and Nigeria (0.727). (d) Traditional measurements of specimens from Burkina Faso, Togo, Kenya, Uganda, Tanzania, Malawi
and Mozambique (0.819). , West African D. rufulus; 〈, D. foxi; ô, Cameroon, Central African Republic, Congo, Democratic Republic
of Congo; σ, East Africa; ∠, D. montanus; , Malawi, Mozambique and Tanzania; τ, D. incomtus from Angola; υ, D. nudipes; ρ,
Okavango Delta; ≤, Zambia; , Zimbabwe; θ, Limpopo and Mpumalanga Provinces, South Africa; ϖ, KwaZulu-Natal Province, South
Africa; ÷, D. i. capensis. OTUs are defined in Table 1.
also separate again (Cluster B2b). Zimbabwe and
South Africa OTUs (Cluster B2) were not completely
separate as was seen in Fig. 5.
Fig. 5C shows Cluster A (containing Angolan
D. incomtus and material from Cameroon, the
DRC, Central African Republic and Nigeria) as
separate from both D. nudipes (B) and D. i. longipilosus
(C). A strong geographic pattern was lacking
within Cluster A, indicating the that OTUs were
similar to each other, including D. foxi and the
two Angolan D. incomtus OTUs, again questioning
the validity of D. foxi as a separate species.
Fig. 5D showed material in Cluster A, representing
Burkina Faso, Togo, Tanzania, Malawi (OTU 80-
Kasungu) and Mozambique (OTUs 83-Furancungo
MAMMALIA • 2004 • 68 (2)