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  • 1
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    Comment on "Intensifying weathering and land use in Iron Age Central Africa" (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-09-01
    Description: Bayon et al. (Reports, 9 March 2012, p. 1219) interpreted unusually high aluminum-potassium ratio values in an Atlantic sediment core as indicating anthropogenic deforestation around 2500 years before the present (B.P.). We argue that there is no terrestrial evidence for forest destruction by humans and that the third millennium B.P. rainforest crisis can be clearly attributed mostly to climatic change.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3556809/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3556809/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Neumann, K -- Eggert, M K H -- Oslisly, R -- Clist, B -- Denham, T -- de Maret, P -- Ozainne, S -- Hildebrand, E -- Bostoen, K -- Salzmann, U -- Schwartz, D -- Eichhorn, B -- Tchiengue, B -- Hohn, A -- 284126/European Research Council/International -- New York, N.Y. -- Science. 2012 Aug 31;337(6098):1040; author reply 1040. doi: 10.1126/science.1221747.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Goethe University, Institute of Archaeological Sciences, Frankfurt, Germany. k.neumann@em.uni-frankfurt.de〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22936758" target="_blank"〉PubMed〈/a〉
    Keywords: Agriculture/*history ; *Climate Change ; *Conservation of Natural Resources ; Geologic Sediments/*chemistry ; Humans ; *Trees
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 2
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    Comment on “Intensifying Weathering and Land Use in Iron Age Central Africa” (2012)
    American Association for the Advancement of Science
    Details
    Publication Date: 2012-08-31
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science
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  • 3
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    A synoptic revision of Inversodicraea (Podostemaceae) (2017)
    In:  Blumea - Biodiversity, Evolution and Biogeography of Plants (2212-1676) vol.62 (2017) p.125
    Details
    Publication Date: 2017-09-25
    Description: Six new species of Inversodicraea (I. feika from Sierra Leone, I. liberia from Liberia, and I. ebo, I. eladii, I. tchoutoi, and I. xanderi from Cameroon) are described as new to science in the context of a synoptic revision of this African genus, now comprising 30 species, including I. cussetiana comb. nov., newly transferred from Macropodiella. Inversodicraea is now equal in number of species to Ledermanniella (as redefined), as the largest genus of the family in Africa. Terete or slightly dorsiventrally flattened leaf petioles (not sheathing and/or stipulate) are newly discovered to distinguish the genus from Ledermanniella, in addition to the presence of scale-leaves. Inversodicraea boumiensis, I. annithomae, and I. bosii are redelimited in this paper. Examples of species hybrids are discussed. Eighteen species are point endemics. A key and IUCN 2012 standard conservation assessments for all species are included. 28 of the 30 species have been assessed as Threatened or Near Threatened. Hydroelectric projects are the biggest source of extinction risk to species of the genus, threatening 19 of the 30 species.
    Keywords: conservation ; extinction risk ; hybridisation ; hydroelectric dam projects ; rheophytes ; stage-dependent heteromorphy
    Repository Name: National Museum of Natural History, Netherlands
    Type: Article / Letter to the editor
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  • 4
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    Ternstroemia cameroonensis (Ternstroemiaceae), a new medicinally important species of montane tree, nearly extinct in the Highlands of Cameroon (2017)
    In:  Blumea - Biodiversity, Evolution and Biogeography of Plants (2212-1676) vol.62 (2017) p.53
    Details
    Publication Date: 2017-03-25
    Description: Ternstroemia cameroonensis sp. nov. (Ternstroemiaceae) is formally described from the Highlands of Cameroon and its conservation status is assessed as Critically Endangered using the IUCN 2012 standard. This is the third species of Ternstroemia known from Africa. The species is unusual in its genus in being monoecious, having Terminalia-branching (Aubreville’s model), phyllotaxy of 1/3 (not pseudo-verticillate), flowers with a uniseriate androecium and a distinct intra-staminal disc, and in the stamens lacking a distinct apicular connective. The species is used locally for extensive medicinal purposes.
    Keywords: Cloud Forest ; Critically Endangered ; medicinal plant ; Pentaphylacaceae ; Theaceae
    Repository Name: National Museum of Natural History, Netherlands
    Type: Article / Letter to the editor
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  • 5
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    A synoptic revision of Inversodicraea (Podostemaceae) (2017)
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 62, pp. 125-156
    Details
    Publication Date: 2024-01-12
    Description: Six new species of Inversodicraea (I. feika from Sierra Leone, I. liberia from Liberia, and I. ebo, I. eladii, I. tchoutoi, and I. xanderi from Cameroon) are described as new to science in the context of a synoptic revision of this African genus, now comprising 30 species, including I. cussetiana comb. nov., newly transferred from Macropodiella. Inversodicraea is now equal in number of species to Ledermanniella (as redefined), as the largest genus of the family in Africa. Terete or slightly dorsiventrally flattened leaf petioles (not sheathing and/or stipulate) are newly discovered to distinguish the genus from Ledermanniella, in addition to the presence of scale-leaves. Inversodicraea boumiensis, I. annithomae, and I. bosii are redelimited in this paper. Examples of species hybrids are discussed. Eighteen species are point endemics. A key and IUCN 2012 standard conservation assessments for all species are included. 28 of the 30 species have been assessed as Threatened or Near Threatened. Hydroelectric projects are the biggest source of extinction risk to species of the genus, threatening 19 of the 30 species.
    Keywords: conservation ; extinction risk ; hybridisation ; hydroelectric dam projects ; rheophytes ; stage-dependent heteromorphy
    Repository Name: National Museum of Natural History, Netherlands
    Type: info:eu-repo/semantics/article
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  • 6
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    Ternstroemia cameroonensis (Ternstroemiaceae), a new medicinally important species of montane tree, nearly extinct in the Highlands of Cameroon (2017)
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 62, pp. 53-57
    Details
    Publication Date: 2024-01-12
    Description: Ternstroemia cameroonensis sp. nov. (Ternstroemiaceae) is formally described from the Highlands of Cameroon and its conservation status is assessed as Critically Endangered using the IUCN 2012 standard. This is the third species of Ternstroemia known from Africa. The species is unusual in its genus in being monoecious, having Terminalia-branching (Aubreville\xe2\x80\x99s model), phyllotaxy of 1/3 (not pseudo-verticillate), flowers with a uniseriate androecium and a distinct intra-staminal disc, and in the stamens lacking a distinct apicular connective. The species is used locally for extensive medicinal purposes.
    Keywords: Cloud Forest ; Critically Endangered ; medicinal plant ; Pentaphylacaceae ; Theaceae
    Repository Name: National Museum of Natural History, Netherlands
    Type: info:eu-repo/semantics/article
    Format: application/pdf
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