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  • 1
    Publikationsdatum: 2012-09-01
    Beschreibung: 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〉
    Schlagwort(e): Agriculture/*history ; *Climate Change ; *Conservation of Natural Resources ; Geologic Sediments/*chemistry ; Humans ; *Trees
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 2
    Publikationsdatum: 2012-08-31
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Standort Signatur Erwartet Verfügbarkeit
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  • 3
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    In:  Blumea - Biodiversity, Evolution and Biogeography of Plants (2212-1676) vol.62 (2017) p.125
    Publikationsdatum: 2017-09-25
    Beschreibung: 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.
    Schlagwort(e): conservation ; extinction risk ; hybridisation ; hydroelectric dam projects ; rheophytes ; stage-dependent heteromorphy
    Repository-Name: National Museum of Natural History, Netherlands
    Materialart: Article / Letter to the editor
    Format: application/pdf
    Standort Signatur Erwartet Verfügbarkeit
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  • 4
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    In:  Blumea - Biodiversity, Evolution and Biogeography of Plants (2212-1676) vol.62 (2017) p.53
    Publikationsdatum: 2017-03-25
    Beschreibung: 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.
    Schlagwort(e): Cloud Forest ; Critically Endangered ; medicinal plant ; Pentaphylacaceae ; Theaceae
    Repository-Name: National Museum of Natural History, Netherlands
    Materialart: Article / Letter to the editor
    Format: application/pdf
    Standort Signatur Erwartet Verfügbarkeit
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  • 5
    facet.materialart.
    Unbekannt
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 62, pp. 125-156
    Publikationsdatum: 2024-01-12
    Beschreibung: 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.
    Schlagwort(e): conservation ; extinction risk ; hybridisation ; hydroelectric dam projects ; rheophytes ; stage-dependent heteromorphy
    Repository-Name: National Museum of Natural History, Netherlands
    Materialart: info:eu-repo/semantics/article
    Format: application/pdf
    Standort Signatur Erwartet Verfügbarkeit
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  • 6
    facet.materialart.
    Unbekannt
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 62, pp. 53-57
    Publikationsdatum: 2024-01-12
    Beschreibung: 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.
    Schlagwort(e): Cloud Forest ; Critically Endangered ; medicinal plant ; Pentaphylacaceae ; Theaceae
    Repository-Name: National Museum of Natural History, Netherlands
    Materialart: info:eu-repo/semantics/article
    Format: application/pdf
    Standort Signatur Erwartet Verfügbarkeit
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