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Rain-fed plantations of the domesticated Ziziphus mauritiana in the Sahel: effects of varieties and rootstocks on yields and fruit quality

100%

Ibrahim A., Pasternak D., Guimbo I. D., Saidou A. S., Amadou M.

Journal of Horticultural Research

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2015

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tom 23

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nr 1

2

Morphometric and meristic description of Tilapia mariae [Boulenger, 1901] and Tilapia zilli [Gervais, 1848] from the Umuoseriche Lake in the freshwater reaches of the Niger delta flood plains

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Anene A.

Acta Hydrobiologica

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1999

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tom 41

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nr 3-4

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Niger - cz. III. Szmaragdowe perły z Afryki Zachodniej

80%

Szmel M.

Nasze Akwarium. Miesięcznik Miłośników i Hodowców Ryb

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2004

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nr 04[55]

4

Seasonal and spatial variations in some physico-chemical parameyers of the River Bonny [Niger Delta]

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Dublin-Green C. O.

Acta Hydrobiologica

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1992

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tom 34

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nr 1-2

3-17

Changes in some ecological parameters of the River Bonny were observed at ten channel Stations. Significant salinity variations were recorded. Ammonia nitrogen concentration was generally high (2.4 mg dm-3) while phosphate concentration was below detection limit during the late rainy season. A two-way analysis of variance of measured parameters revealed that seasonal and spatial variations in salinity, alkalinity, pH, and silica are significant.

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Delegacja Nigeru z wizytą w Naczelnej Radzie Spółdzielczej

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Przegląd Mleczarski

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1961

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tom 09

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nr 10

6

Basal abelisaurid and carcharodontosaurid theropods from the Lower Cretaceous Elrhaz Formation of Niger

80%

Sereno P. C., Brusatte S. L.

Acta Palaeontologica Polonica

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2008

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tom 53

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nr 1

We report the discovery of basal abelisaurid and carcharodontosaurid theropods from the mid Cretaceous (Aptian–Albian, ca. 112 Ma) Elrhaz Formation of the Niger Republic. The abelisaurid, Kryptops palaios gen. et sp. nov., is represented by a single individual preserving the maxilla, pelvic girdle, vertebrae and ribs. Several features, including a maxilla textured externally by impressed vascular grooves and a narrow antorbital fossa, clearly place Kryptops palaios within Abelisauridae as its oldest known member. The carcharodontosaurid, Eocarcharia dinops gen. et sp. nov., is represented by several cranial bones and isolated teeth. Phylogenetic analysis places it as a basal carcharodontosaurid, similar to Acrocanthosaurus and less derived than Carcharodontosaurus and Giganotosaurus. The discovery of these taxa suggests that large body size and many of the derived cranial features of abelisaurids and carcharodontosaurids had already evolved by the mid Cretaceous. The presence of a close relative of the North American genus Acrocanthosaurus on Africa suggests that carcharodontosaurids had already achieved a trans−Tethyan distribution by the mid Cretaceous.

Ograniczanie wyników

2 Acta Hydrobiologica

1 Acta Palaeontologica Polonica

1 Journal of Horticultural Research

1 Nasze Akwarium. Miesięcznik Miłośników i Hodowców Ryb

1 Przegląd Mleczarski

1 Amadou M.

1 Anene A.

1 Brusatte S. L.

1 Dublin-Green C. O.

1 Guimbo I. D.

1 Ibrahim A.

1 Pasternak D.

1 Saidou A. S.

1 Sereno P. C.

1 Szmel M.

1 2015

1 2008

1 2004

1 1999