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1

Community ecology of the terrestrial small mammals of Zakouma National Park, Chad

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Granjon L., Houssin C., Lecompte E., Angaya M., Cesar J., Cornette R., Dobigny G., Denys C.
Acta Theriologica
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2004
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tom 49
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nr 2
The terrestrial small mammal community of the Zakouma National Park (Chad) was assessed by live trapping in various habitats during the dry season. Nearly 3000 trap-nights yielded 505 captures of nine rodent and two shrew species, making up a representative small mammal community for the Sudanian savanna biotic zone. Murine rodents of the genus Mastomys dominated, with M. erythroleucus and M. cf. kollman- nspergeri occuring at similar abundances. The former was widespread and especially abundant in habitats with high tree cover. The latter was more localized, predominantly in annually flooded habitats characterized by a clay-rich soil, often with Acacia seyal as the main vegetation. Population structure differed between the two species, suggesting distinct reproductive strategies possibly linked with habitat preferences: the M. erythroleucus population comprised mainly young, immature individuals, whereas M. cf. kollmannspergeri was represented by older individuals, a significant fraction of which had already reproduced. Taterillus congicus and Tatera kempi (gerbilline rodents), togetjier with Lemniscomys zebra, were mainly found in more open habitats with sand-rich soils. Arvicanthis niloticus, Acomys cf. johannis, Mus mattheyi and Xerus erythropus were the other rodents captured, whereas shrews were represented by Crocidura fulvastra and Suncus sp.
2

Presence of Myxosporidea [Myxozoa: Myxosporea] of the genus Henneguya Thelohan, 1892 in freshwater fishes from Chad [Central Africa]

80%
Kostoingue B., Diebakate C., Faye N., Toguebaye B. S.
Acta Protozoologica
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2001
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tom 40
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nr 2
3
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A large extinct marabou stork in African Pliocene hominid sites, and a review of the fossil species of Leptoptilos

80%
Louchart A., Vignaud P., Likius A., Brunet M., White T. D.
Acta Palaeontologica Polonica
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2005
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tom 50
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nr 3
New fossils of the family Ciconiidae from Pliocene hominid localities in Chad and Ethiopia are described, and several are shown to belong to Leptoptilos falconeri, originally known from the late Pliocene of the Siwalik Hills of India. Comparisons with all the hitherto known species of large Ciconiidae, and with an enlarged sample representing extant species, lead to a re−evaluation of some extinct taxa. Several synonymies are proposed, reflecting better the past diversity for this group. L. pliocenicus (Pliocene, Ukraine) is equivalent to L. cf. falconeri. Cryptociconia indica (late Pliocene, Siwalik Hills) belongs to Leptoptilos, and is probably either extant L. dubius or female L. falconeri. L. siwalicensis, from the same locality and also tentatively reported from the late Miocene of Northern Pakistan, is better referred to as Leptoptilini gen. et sp. indet. We consider the two following species as valid. L. titan (Pleistocene, Java) may be a late offshot of the lineage of L. falconeri. L. richae (late Miocene, Tunisia) is the size of L. crumeniferus, and is distinct from L. falconeri. Thus, L. falconeri remains the only ascertained extinct Pliocene species in the tribe Leptoptilini. It was a widespread “giant” marabou stork, in the Pliocene of southern Asia, as well as northern and eastern Africa where it coexisted with different Pliocene hominids, and probably eastern Europe. It weighed up to about 20 kg, reached 2 m in height, and had probably slightly reduced forelimbs. It became extinct by the end of the Pliocene. L. falconeri is an example of a biogeographical link at the species level between the African and Eurasian faunas in the Pliocene. The fossil record indicates the presence of at least one other lineage in Africa since the early Miocene, similar in size to the extant L. crumeniferus.
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