@article{Andress2016, author = {Andress, Reinhard}, title = {Ein unver{\"o}ffentlichter Brief Alexander von Humboldts an den Buchh{\"a}ndler Jean-Georges Treuttel}, series = {HiN : Alexander von Humboldt im Netz ; International Review for Humboldtian Studies}, volume = {XVII}, journal = {HiN : Alexander von Humboldt im Netz ; International Review for Humboldtian Studies}, number = {33}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, issn = {1617-5239}, doi = {10.18443/228}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-98871}, pages = {5 -- 11}, year = {2016}, abstract = {In der Lilly Library der Indiana University befindet sich ein kurzer unver{\"o}ffentlichter Brief Alexander von Humboldts an den Buchh{\"a}ndler und Autor Jean-Georges Treuttel. Dieser Artikel unternimmt den Versuch, den historisch-bibliographischen Kontext des Briefes herzustellen und ihn in Humboldts wissenschaftliches Schaffen einzuordnen.}, language = {de} } @article{Andress2016, author = {Andress, Reinhard}, title = {Eine Bitte an Thomas Jefferson um Tabaksamen und Tabak}, series = {HiN : Alexander von Humboldt im Netz ; International Review for Humboldtian Studies}, volume = {XVII}, journal = {HiN : Alexander von Humboldt im Netz ; International Review for Humboldtian Studies}, number = {32}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, issn = {1617-5239}, doi = {10.18443/229}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-90761}, pages = {18 -- 28}, year = {2016}, abstract = {Dieser Beitrag behandelt einen bisher unver{\"o}ffentlichen Brief Alexander von Humboldts an Thomas Jefferson. Der Brief bietet uns einen aufschlussreichen Einblick in die pers{\"o}nlichen, politischen und wissenschaftlichen Netzwerke Humboldts und schließt eine L{\"u}cke in der Humboldt-Jefferson-Korrespondenz.}, language = {de} } @misc{AndressDrewsGomezGutierrezetal.2016, author = {Andress, Reinhard and Drews, Julian and G{\´o}mez Guti{\´e}rrez, Alberto and Reich, Karin and Roussanova, Elena and St{\"o}ger, Alexander and Herneck, Friedrich and Schwarz, Ingo}, title = {HiN : Alexander von Humboldt im Netz}, series = {HIN : Alexander von Humboldt im Netz ; international review for Humboldtian studies}, volume = {XVII}, journal = {HIN : Alexander von Humboldt im Netz ; international review for Humboldtian studies}, number = {33}, editor = {Ette, Ottmar and Knobloch, Eberhard}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, issn = {1617-5239}, doi = {0.18443/hinvol17iss332016}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-98944}, pages = {90}, year = {2016}, abstract = {Inhalt - Reinhard Andress: Ein unver{\"o}ffentlichter Brief Alexander von Humboldts an den Buchh{\"a}ndler Jean-Georges Treuttel - Julian Drews: {\´E}criture (auto)biographique dans l'Examen critique d'Alexandre de Humboldt - Alberto G{\´o}mez Guti{\´e}rrez: Alexander von Humboldt y la cooperaci{\´o}n transcontinental en la Geograf{\´i}a de las plantas: una nueva apreciaci{\´o}n de la obra fitogeogr{\´a}fica de Francisco Jos{\´e} de Caldas - Karin Reich und Elena Roussanova: Der Briefwechsel zwischen Karl Kreil und Alexander von Humboldt, ein wichtiger Beitrag zur Geschichte des Erdmagnetismus - Alexander St{\"o}ger: Experiment und Wissensvermittlung. Alexander von Humboldts Darstellungsmethoden in seinen Versuchen {\"u}ber die gereizte Muskel- und Nervenfaser - Friedrich Herneck und Ingo Schwarz: Friedrich Herneck: Hegel und Alexander von Humboldt}, language = {de} } @article{Drews2016, author = {Drews, Julian}, title = {{\´E}criture (auto)biographique dans l'Examen critique d'Alexandre de Humboldt}, series = {HiN : Alexander von Humboldt im Netz ; International Review for Humboldtian Studies}, volume = {XVII}, journal = {HiN : Alexander von Humboldt im Netz ; International Review for Humboldtian Studies}, number = {33}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, issn = {1617-5239}, doi = {10.18443/240}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-98889}, pages = {10 -- 21}, year = {2016}, abstract = {Der Bezug auf Kolumbus ist ein Gemeinplatz der Humboldtbiographik. Humboldt selbst betont ihn besonders in seinem Examen critique, wo er eine autobiographische Dimension gewinnt. Der Beitrag geht aus literaturwissenschaftlicher Perspektive dem Material und den Formen der Inszenierung nach, mit denen ein Leben {\"u}ber ein anderes dargestellt wird.}, language = {fr} } @article{Ette2016, author = {Ette, Ottmar}, title = {Naturaleza y cultura}, series = {HiN : Alexander von Humboldt im Netz ; International Review for Humboldtian Studies}, volume = {XVII}, journal = {HiN : Alexander von Humboldt im Netz ; International Review for Humboldtian Studies}, number = {32}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, issn = {1617-5239}, doi = {10.18443/235}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-90773}, pages = {29 -- 51}, year = {2016}, abstract = {El presente trabajo gira en torno al inexpugnable v{\´i}nculo entre naturaleza y cultura y la 'no naturalidad' de la primera, producto de las milenarias intervenciones del hombre, subsumido bajo el t{\´e}rmino del 'antropoceno'. Los fil{\´o}sofos franceses Bruno Latour y Philippe Descola supieron destacar, aunque por caminos diferentes, la importancia de este nexo para asegurar la supervivencia del hombre; Bruno Latour centra sus reflexiones en la pol{\´i}tica de la naturaleza y Philippe Descola destaca el car{\´a}cter ecol{\´o}gico de la naturaleza y la cultura. Sin embargo, ambos dejan de lado las literaturas del mundo y su capacidad de atesorar los diversos dise{\~n}os del saber convivir entre hombre y naturaleza y las nociones de sustentabilidad. Descuella adem{\´a}s la inspiraci{\´o}n que Descola encuentra en la figura del gran erudito Alexander von Humboldt, quien en el siglo XIX ya daba fe de la relaci{\´o}n inextricable entre naturaleza y cultura en innumerables testimonios, entre otros, el Chimborazo que, como cuadro global es representativo para entender que la naturaleza desde siempre ha sido cultura y la cultura es inimaginble sin la naturaleza.}, language = {es} } @article{GomezGutierrez2016, author = {G{\´o}mez Guti{\´e}rrez, Alberto}, title = {Alexander von Humboldt y la cooperaci{\´o}n transcontinental en la Geograf{\´i}a de las plantas}, series = {HiN : Alexander von Humboldt im Netz ; International Review for Humboldtian Studies}, volume = {XVII}, journal = {HiN : Alexander von Humboldt im Netz ; International Review for Humboldtian Studies}, number = {33}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, issn = {1617-5239}, doi = {10.18443/238}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-98893}, pages = {24 -- 51}, year = {2016}, abstract = {El Ensayo sobre la geograf{\´i}a de las plantas de Alexander von Humboldt ha trascendido como una de sus principales propuestas cient{\´i}ficas, fundamento de lo que se conoce hoy como "biogeograf{\´i}a". El origen de este concepto es difuso hasta el momento de la publicaci{\´o}n simult{\´a}nea de su obra en Par{\´i}s y en T{\"u}bingen, en 1807. El presente art{\´i}culo propone contrastar la primera versi{\´o}n manuscrita de este ensayo, elaborada en 1803 en Guayaquil y luego le{\´i}da en 1805 en el Institut National de Paris, con la obra contempor{\´a}nea del neogranadino Francisco Jos{\´e} de Caldas, con quien convivi{\´o} en Quito en el primer semestre de 1802.}, language = {es} } @article{HerneckSchwarz2016, author = {Herneck, Friedrich and Schwarz, Ingo}, title = {Friedrich Herneck: Hegel und Alexander von Humboldt}, series = {HiN : Alexander von Humboldt im Netz ; International Review for Humboldtian Studies}, volume = {XVII}, journal = {HiN : Alexander von Humboldt im Netz ; International Review for Humboldtian Studies}, number = {33}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, issn = {1617-5239}, doi = {10.18443/239}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-98939}, pages = {85 -- 92}, year = {2016}, language = {de} } @phdthesis{Lenz2016, author = {Lenz, Josefine}, title = {Thermokarst dynamics in central-eastern Beringia}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-101364}, school = {Universit{\"a}t Potsdam}, pages = {XII, 128, A-47}, year = {2016}, abstract = {Widespread landscape changes are presently observed in the Arctic and are most likely to accelerate in the future, in particular in permafrost regions which are sensitive to climate warming. To assess current and future developments, it is crucial to understand past environmental dynamics in these landscapes. Causes and interactions of environmental variability can hardly be resolved by instrumental records covering modern time scales. However, long-term environmental variability is recorded in paleoenvironmental archives. Lake sediments are important archives that allow reconstruction of local limnogeological processes as well as past environmental changes driven directly or indirectly by climate dynamics. This study aims at reconstructing Late Quaternary permafrost and thermokarst dynamics in central-eastern Beringia, the terrestrial land mass connecting Eurasia and North America during glacial sea-level low stands. In order to investigate development, processes and influence of thermokarst dynamics, several sediment cores from extant lakes and drained lake basins were analyzed to answer the following research questions: 1. When did permafrost degradation and thermokarst lake development take place and what were enhancing and inhibiting environmental factors? 2. What are the dominant processes during thermokarst lake development and how are they reflected in proxy records? 3. How did, and still do, thermokarst dynamics contribute to the inventory and properties of organic matter in sediments and the carbon cycle? Methods applied in this study are based upon a multi-proxy approach combining sedimentological, geochemical, geochronological, and micropaleontological analyses, as well as analyses of stable isotopes and hydrochemistry of pore-water and ice. Modern field observations of water quality and basin morphometrics complete the environmental investigations. The investigated sediment cores reveal permafrost degradation and thermokarst dynamics on different time scales. The analysis of a sediment core from GG basin on the northern Seward Peninsula (Alaska) shows prevalent terrestrial accumulation of yedoma throughout the Early to Mid Wisconsin with intermediate wet conditions at around 44.5 to 41.5 ka BP. This first wetland development was terminated by the accumulation of a 1-meter-thick airfall tephra most likely originating from the South Killeak Maar eruption at 42 ka BP. A depositional hiatus between 22.5 and 0.23 ka BP may indicate thermokarst lake formation in the surrounding of the site which forms a yedoma upland till today. The thermokarst lake forming GG basin initiated 230 ± 30 cal a BP and drained in Spring 2005 AD. Four years after drainage the lake talik was still unfrozen below 268 cm depth. A permafrost core from Mama Rhonda basin on the northern Seward Peninsula preserved a full lacustrine record including several lake phases. The first lake generation developed at 11.8 cal ka BP during the Lateglacial-Early Holocene transition; its old basin (Grandma Rhonda) is still partially preserved at the southern margin of the study basin. Around 9.0 cal ka BP a shallow and more dynamic thermokarst lake developed with actively eroding shorelines and potentially intermediate shallow water or wetland phases (Mama Rhonda). Mama Rhonda lake drainage at 1.1 cal ka BP was followed by gradual accumulation of terrestrial peat and top-down refreezing of the lake talik. A significant lower organic carbon content was measured in Grandma Rhonda deposits (mean TOC of 2.5 wt\%) than in Mama Rhonda deposits (mean TOC of 7.9 wt\%) highlighting the impact of thermokarst dynamics on biogeochemical cycling in different lake generations by thawing and mobilization of organic carbon into the lake system. Proximal and distal sediment cores from Peatball Lake on the Arctic Coastal Plain of Alaska revealed young thermokarst dynamics since about 1,400 years along a depositional gradient based on reconstructions from shoreline expansion rates and absolute dating results. After its initiation as a remnant pond of a previous drained lake basin, a rapidly deepening lake with increasing oxygenation of the water column is evident from laminated sediments, and higher Fe/Ti and Fe/S ratios in the sediment. The sediment record archived characterizing shifts in depositional regimes and sediment sources from upland deposits and re-deposited sediments from drained thaw lake basins depending on the gradually changing shoreline configuration. These changes are evident from alternating organic inputs into the lake system which highlights the potential for thermokarst lakes to recycle old carbon from degrading permafrost deposits of its catchment. The lake sediment record from Herschel Island in the Yukon (Canada) covers the full Holocene period. After its initiation as a thermokarst lake at 11.7 cal ka BP and intense thermokarst activity until 10.0 cal ka BP, the steady sedimentation was interrupted by a depositional hiatus at 1.6 cal ka BP which likely resulted from lake drainage or allochthonous slumping due to collapsing shore lines. The specific setting of the lake on a push moraine composed of marine deposits is reflected in the sedimentary record. Freshening of the maturing lake is indicated by decreasing electrical conductivity in pore-water. Alternation of marine to freshwater ostracods and foraminifera confirms decreasing salinity as well but also reflects episodical re-deposition of allochthonous marine sediments. Based on permafrost and lacustrine sediment records, this thesis shows examples of the Late Quaternary evolution of typical Arctic permafrost landscapes in central-eastern Beringia and the complex interaction of local disturbance processes, regional environmental dynamics and global climate patterns. This study confirms that thermokarst lakes are important agents of organic matter recycling in complex and continuously changing landscapes.}, language = {en} } @article{PuigSamperGarrido2016, author = {Puig-Samper, Miguel {\´A}ngel and Garrido, Elisa}, title = {The presentation of the results of Alexander von Humboldt's voyage to Carlos IV}, series = {HiN : Alexander von Humboldt im Netz ; International Review for Humboldtian Studies}, volume = {XVII}, journal = {HiN : Alexander von Humboldt im Netz ; International Review for Humboldtian Studies}, number = {32}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, issn = {1617-5239}, doi = {10.18443/227}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-90788}, pages = {52 -- 64}, year = {2016}, abstract = {Ever since our first research into Alexander von Humboldt's stay in Spain, the absence of an ensuing relationship between the wise Prussian and the Spanish Crown and Authorities had always surprised us. On starting new research, we found that indeed he sent his first work to Carlos IV from Rome accompanied by a letter of gratitude for the protection he had received during his American trip and submission to the Spanish Crown, which we now present. This first literary fruit of his voyage, which Alexander von Humboldt alluded to in the letter is the first instalment of his work Plantes {\´E}quinoxiales, Recueillies au Mexique, dans l'ile de Cuba, dans les provinces de Caracas, de Cumana etc., published in Paris in 1805.}, language = {en} } @article{ReichRoussanova2016, author = {Reich, Karin and Roussanova, Elena}, title = {Der Briefwechsel zwischen Karl Kreil und Alexander von Humboldt, ein wichtiger Beitrag zur Geschichte des Erdmagnetismus}, series = {HiN : Alexander von Humboldt im Netz ; International Review for Humboldtian Studies}, volume = {XVII}, journal = {HiN : Alexander von Humboldt im Netz ; International Review for Humboldtian Studies}, number = {33}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, issn = {1617-5239}, doi = {10.18443/245}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-98904}, pages = {52 -- 73}, year = {2016}, abstract = {The correspondence between Alexander von Humboldt und Karl Kreil was voluminous, it concerned earth magnetism. But only one letter has survived. This letter was written by Kreil on September 3, 1836; one day later Kreil wrote a letter to Carl Friedrich Gauss with nearly the same contents, some sentences are even literally corresponding. Four letters from Kreil to Humboldt were published in the „Annalen der Physik und Chemie". Some letters were mentioned in the biographical literature dealing with Kreil. These letters show, that the correspondence covered at least the period until 1851 and give information about the intensive relationship between the two scientists. A further interesting source is the library of Humboldt which unfortunately has not survived. The catalogue mentions nine works of Kreil some of them where annotated by Humboldt. This makes it plausible that the contacts even lasted until 1856.}, language = {de} }