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Johannes Iversen

April 08, 2024

Johannes Iversen (Danish pronunciation: [ˈiˀvɐsn̩], 12 December 1904 – 17 October 1971) was a Danish palaeoecologist and plant ecologist.[1]

Iversen c. 1955

Biography edit

He was born in Sønderborg and began studies in botany at the University of Copenhagen in 1923 under professor C.H. Ostenfeld, and with considerable inspiration from prof.em. Christen Raunkiær. At first he worked with macrophyte vegetation of lakes in relation to water pH. The influence from Raunkiær is particularly evident in Iversen's doctoral thesis, in which he divided herbaceous plants into hydrotypes based on experiments and morphological studies: xerophytes, mesophytes, hygrophytes, telmatophytes, amphiphytes and limnophytes. In addition, halobio-types (salt tolerance) were described. He brilliantly used modern equivalents in the interpretation of pollen diagrams, e.g. his now classic studies on frost damage to ivy (Hedera) and holly (Ilex) during the severe winters of the early 1940s led to their fossil pollen being used as climate indicators. Iversen demonstrated the steppe and tundra components of the late glacial flora. Iversen conducted a practical experiment with stone axe clear-cutting and slash-and-burn agriculture in a primeval forest to study the forest regeneration.[2][3]

In 1931, Iversen was first appointed assistant at the Geological Survey of Denmark and Greenland. In 1938, Iversen became a Sectional geologist and in 1942 he became State Geologist, an appointment he kept until his death. In 1955, he became a lecturer in pollen analysis at the University of Copenhagen. In 1953, he was made a member of the Royal Danish Academy of Sciences and Letters. He was awarded honorary doctorates at Uppsala University and Cambridge University.[1][3]

Textbook of modern pollen analysis edit

  • Fægri, Knut & Iversen, J. (1950) Textbook of modern pollen analysis. Ejnar Munksgaard, Copenhagen. 168 p.
  • Fægri, Knut & Iversen, J. (1964) Textbook of pollen analysis, 2nd edn. Scandinavian University Books, Copenhagen. 237 p.
  • Fægri, K. & Iversen, J. (1975) Textbook of pollen analysis, 3rd ed. by Knut Fægri, Scandinavian University Books, Copenhagen. 294 p.
  • Fægri, K. & Iversen, J. (1989) Textbook of pollen analysis. 4th ed. by K. Fægri, P.E. Kaland & K. Krzywinski. John Wiley & Sons, Chichester. 328 p.

Scientific works by Johs. Iversen edit

  • Iversen, J. (1928) Über Isoëtes in China und Japan. Dansk Botanisk Arkiv, 5 (23), 1–4.
  • Iversen, J. (1928) Über die Spezies-Umgrenzung und Variation der Isoëtes echinospora Durieu. Botanisk Tidsskrift, 40 (2), 126–131.
  • Iversen, J. (1929) Studien über die pH-Verhältnisse dänischer Gewässer und ihren Einfluss auf die Hydrophyten-Vegetation. Botanisk Tidsskrift, 40 (4), 277–333.
  • Iversen, J. (1930) Isoëtes, In: Christensen, C., The pteridophytes of Madagascar. Dansk Botanisk Arkiv, 7, 200–201.
  • Gabrielsen, E.K. & Iversen, J. (1933) Die Vegetation der Halbinsel Skallingen. Botanisk Tidsskrift, 42 (4), 355–383.
  • Iversen, J. (1933) Studier over Vegetationen i Ringkøbing Fjord før Hvide Sande-Kanalens genåbning 1931 (with English summary). In: Johansen, A.C. & Blegvad, H. (eds) Ringkøbing Fjords Naturhistorie i Brakvandsperioden 1915–1931.
  • Iversen, J. (1934) Fund af Vildhest (Equus caballus) fra Overgangen mellem Sen- og Postglacialtid i Danmark. (Meddelelser fra Dansk Geologisk Forening, 8, 327-340 [1]). Danmarks Geologiske Undersøgelse IV.række, 2 (13), 1-16.
  • Iversen, J. (1934) Moorgeologische Untersuchungen auf Grönland. Ein Beitrag zur Beleuchtung der Ursachen des Unterganges der mittelalterlichen Nordmännerkultur. Meddelelser fra Dansk Geologisk Forening, 8, 341–358. [2]
  • Iversen, J. (1936) Biologische Pflanzentypen als Hilfsmittel in der Vegetationsforschung. Ein Beitrag zur ökologischer Charakterisierung und Anordnung der Pflanzengesellshaften. Doctoral dissertation, University of Copenhagen. Levin & Munksgaard, København.
  • Iversen, J. (1936) Sekundäres Pollen als Fehlerquelle. Eine Korrektionsmethode zur Pollenanalyse minerogener Sedimente. Danmarks Geologiske Undersøgelse IV.række, 2 (15), 1-24.
  • Iversen, J. (1937) Pollenalalytiske Tidsbestemmelser af midtjydske mesolitiske Bopladser (Appendix til Th. Mathiassen: Gudenaa-Kulturen). Aarbøger for nordisk Oldkyndighed og Historie 1937, 182–186.
  • Iversen, J. (1937) Undersøgelser over Litorinatransgressioner i Danmark. Meddelelser fra Dansk Geologisk Forening, 9, 223–232. [3]
    • Nominated as one of the most significant 20th Century publications in Danish geology. It is one of the most cited publications on short-term, low-amplitude sea-level changes and their causes.
  • Iversen, J. (1938) Et botanisk Vidne om Nordboernes Vinlandsrejser. Naturhistorisk Tidende, 2, 113–116.
  • Iversen, J. (1939) Planterester fremdragne i tre Høje i Haderslev Amt. In: Broholm, H.C. & Hald, M. Skrydstrupfundet: en sønderjysk Kvindegrav fra den ældre Bronzealder. Nordiske Fortidsminder, 3, 18–21.
  • Iversen, J. (1940) Blütenbiologische Studien. I. Dimorphie und Monomorphie bei Armeria (English summary) Biologiske Meddelelser / Kongelige Danske Videnskabernes Selskab, 15 (8), 1-40.
  • Iversen, J. (1941) Landnam i Danmarks Stenalder: En pollenanalytisk Undersøgelse over det første Landbrugs Indvirkning paa Vegetationsudviklingen (Dansk tekst 7-59, Engl. text 60–65). Danmarks Geologiske Undersøgelse II.række, 66, 1-68. (reprinted 1964)
  • Degerbøl, M. & Iversen, J. (1942) On a find of Sheat-fish (Silurus glanis L.) from the Ancylos period in Denmark. Videnskabelige Meddelelser fra Dansk Naturhistorisk Forening, 105, 435–446.
  • Iversen, J. & Olsen, Sigurd (1943) Die Verbreitung der Wasserpflanzen in Relation zur Chemie des Wassers. Botanisk Tidsskrift, 46, 136–145.
  • Iversen, J. (1943) En pollenanalytisk Tidsfæstelse af Ferskvandlagene ved Nørre Lyngby. Meddelelser fra Dansk Geologisk Forening, 10, 130–151. [4]
  • Iversen, J. (1943) Et Litorinaprofil ved Dybvad i Vendsyssel. Meddelelser fra Dansk Geologisk Forening, 10, 324–328. [5]
  • Iversen, J. (1944) Viscum, Hedera and Ilex as climatic indicators. A contribution to the study of the Post-Glacial temperature climate. Geologiska Föreningen i Stockholm Förhandlingar, 66, 463–483.
  • Iversen, J. (1944) Helianthemum som fossil Glacialplante i Danmark. Geologiska Föreningen i Stockholm Förhandlingar, 66, 774–776.
  • Degerbøl, M. & Iversen, J. (1945) The bison in Denmark. A zoological and geological investigation of the finds in Danish Pleistocene deposits. Danmarks Geologiske Undersøgelse II.række, 73, 1-62.
  • Iversen, J. (1946) Datering af en senglacial Boplads ved Bromme (Datation Géologique de la station glaciaire postérieure de Bromme). Aarbøger for nordisk Oldkyndighed og Historie 1946: 197–231.
  • Iversen, J. (1947) Plantevækst, Dyreliv og Klima i det senglaciale Danmark. Geologiska Föreningen i Stockholm Förhandlingar, 69, 67–78.
  • Iversen, J. (1947) Centaurea cyanus-pollen in Danish late-glacial deposits. Meddelelser fra Dansk Geologisk Forening, 11, 197–200. [6]
  • Iversen, J. (1947) Senglacialens nivåförändingar och klimatutveckling (contribution to discussion). In: Geologklubben vid Stockholms Högskola. Nordiskt kvartärgeologisk möte den 5–9 November 1945 [pp. 215–217, 252]. Geologiska Föreningen i Stockholm Förhandlingar, 69, 215–217.
  • Iversen, J. (1947) Pollenanalysens principer och tillämpning (contribution to discussion). In: Geologklubben vid Stockholms Högskola. Nordiskt kvartärgeologisk möte den 5–9 November 1945. Geologiska Föreningen i Stockholm Förhandlingar, 69, 241–242.
  • Iversen, J. (1948) Palaeobotany and pollen analysis. In: The humanities and the Sciences in Denmark during the Second World War. Ejnar Munksgaard, Copenhagen, pp 313–315.
  • Iversen, J. (1949) The influence of prehistoric man on vegetation. Danmarks Geologiske Undersøgelse IV.række, 3 (6), 1-25.
  • Iversen, J. (1949) Determinations of the specific gravity of the roots of swamp, meadow and dry-soil plants. Oikos, 1, 1–5. [7]
  • Iversen, J. & Troels-Smith, J. (1950) Pollenmorfologiske definitioner og typer. Danmarks Geologiske Undersøgelse IV.række, 3 (8), 1-54.
  • Iversen, J. (1951) Steppeelementer i den senglaciale flora og fauna (English summary) Meddelelser fra Dansk Geologisk Forening, 12, 174–175. [8]
  • Iversen, J. (1952/53) Origin of the flora of Western Greenland in the light of pollen analysis. Oikos, 4, 85-103. [9]
  • Iversen, J. (1953) Radiocarbon dating of the Alleröd period. Science, 118 (3053), 4–6. [10]
  • Iversen, J. (1953) Origin and postglacial development of the flora of West Greenland in the light of pollen analysis. Proceedings of the Seventh International Botanical Congress Stockholm, July 12–20, 1950 (eds H. Osvald & E. Åberg), pp. 634–636.
  • Iversen, J. (1953) Identification of difficult pollen types by means of structural characters. Proceedings of the Seventh International Botanical Congress Stockholm, July 12–20, 1950 (eds H. Osvald & E. Åberg), pp. 873–874.
  • Iversen, J. (1953) The zonation of the salt marsh vegetation of Skallingen in 1931-34 and in 1952. Geografisk Tidsskrift, 52, 113–118.
  • Iversen, J. (1954) The Late-Glacial flora of Denmark and its relation to climate and soil. Danmarks Geologiske Undersøgelse II.række, 80, 87-119.
  • Iversen, J. (1954) The late-glacial flora of South-Scandinavia and its recent relics. Huitième Congrès International de Botanique, Paris 1954, Comptes rendus des séances et rapports et communications déposés lors du congrès dans les sections 3,4,5 et 6 pp. 241–242.
  • Iversen, J. (1954) Über die Korrelationen zwischen den Pflanzenarten in einem grönländischen Talgebiet. Vegetatio, 5–6, 238–246.
  • Iversen, J. (1956) Forest clearance in the Stone Age. Scientific American, 194, 36–41.
    • German translation (1956) Neolitische Waldrodungen beleuchtet durch Pollenanalyse und Experiment. Mitteilungen der Naturforschender Gesellschaft Bern N.F., 13, 30–32.
    • French translation (1960) Le défrichement da la forêt pendant l’age de pierre. Les Naturalistes Belges, 41, 53–64.
    • Keywords: palaeoecology, history of agriculture
  • Iversen, J. (1957) Istidsrelikter i Bornholms flora. In: Bornholms naturhistoriske Forening, udgivet i anledning af 25 års jubilæet pp. 35–37.
  • Iversen, J. (1954) Pollenanalytischer Nachweis des Reliktencharakters eines jütischen Linden-Mischwaldes. Veröffentlichungen des Geobotanischen Institutes Rübel in Zürich, 33, 137–144.
  • Iversen, J. (1958) The bearing of glacial and interglacial epochs on the formation and extinction of plant taxa. In: Hedberg, O. (ed.): Systematics of to-day. Proceedings of a symposium held at the University of Uppsala in commemoration of the 250th anniversary of Carolus Linnaeus. Acta Universitatis Upsaliensis/Uppsala Universitets Årsskrift, 1958 (6), 210–215.
  • Iversen, J. (1960) Problems of the early post-glacial forest development in Denmark. Danmarks Geologiske Undersøgelse IV.række, 4 (3), 1-32.
  • Iversen, J. (1964) Retrogressive vegetational succession in the Post-glacial. Journal of Ecology, 52S, 59–70.
  • Iversen, J. (1964) Plant indicators of climate, soil and other factors during the Quaternary. INQUA VIth international Congress on the Quaternary, Warszawa 1961, 2, 421–428.
  • Iversen, J. & Fægri, Knut (1965) Field techniques. In: Handbook of Paleontological Techniques, p. 482-494. San Francisco.
  • Iversen, J. & Fægri, Knut (1966) terminology in palynology. Pollen et Spores, 8, 345–445.
  • Iversen, J. (1969) Retrogressive development of a forest ecosystem demonstrated by pollen diagrams from a fossil mor. Oikos, 12S, 35–49.
  • Iversen, J. (1973) The development of Denmark's nature since the last glacial. Danmarks Geologiske Undersøgelse V.række, 7C, 1–126.
The standard author abbreviation Iversen is used to indicate this person as the author when citing a botanical name.[4]

References edit

  1. ^ a b Hafsten, Ulf (13 November 1971). "Johannes Iversen". Grana. 11 (3). doi:10.1080/00173137109430487.
  2. ^ "Obituary: Tribute To Four Botanists". New Phytologist. 72 (5): 1245–1247. September 1973. doi:10.1111/j.1469-8137.1973.tb02100.x.
  3. ^ a b J. Troels-Smith (1975). "Johannes Iversen" (PDF). Bulletin of the Geological Society of Denmark, vol 24. Retrieved May 1, 2020.
  4. ^ International Plant Names Index.  Iversen.

Other sources edit

External links edit

  • Virtual International Authority
  • International Plant Names Index

April 08, 2024
johannes, iversen, danish, pronunciation, ˈiˀvɐsn, december, 1904, october, 1971, danish, palaeoecologist, plant, ecologist, iversen, 1955, contents, biography, textbook, modern, pollen, analysis, scientific, works, johs, iversen, references, other, sources, e. Johannes Iversen Danish pronunciation ˈiˀvɐsn 12 December 1904 17 October 1971 was a Danish palaeoecologist and plant ecologist 1 Iversen c 1955 Contents 1 Biography 2 Textbook of modern pollen analysis 3 Scientific works by Johs Iversen 4 References 5 Other sources 6 External linksBiography editHe was born in Sonderborg and began studies in botany at the University of Copenhagen in 1923 under professor C H Ostenfeld and with considerable inspiration from prof em Christen Raunkiaer At first he worked with macrophyte vegetation of lakes in relation to water pH The influence from Raunkiaer is particularly evident in Iversen s doctoral thesis in which he divided herbaceous plants into hydrotypes based on experiments and morphological studies xerophytes mesophytes hygrophytes telmatophytes amphiphytes and limnophytes In addition halobio types salt tolerance were described He brilliantly used modern equivalents in the interpretation of pollen diagrams e g his now classic studies on frost damage to ivy Hedera and holly Ilex during the severe winters of the early 1940s led to their fossil pollen being used as climate indicators Iversen demonstrated the steppe and tundra components of the late glacial flora Iversen conducted a practical experiment with stone axe clear cutting and slash and burn agriculture in a primeval forest to study the forest regeneration 2 3 In 1931 Iversen was first appointed assistant at the Geological Survey of Denmark and Greenland In 1938 Iversen became a Sectional geologist and in 1942 he became State Geologist an appointment he kept until his death In 1955 he became a lecturer in pollen analysis at the University of Copenhagen In 1953 he was made a member of the Royal Danish Academy of Sciences and Letters He was awarded honorary doctorates at Uppsala University and Cambridge University 1 3 Textbook of modern pollen analysis editFaegri Knut amp Iversen J 1950 Textbook of modern pollen analysis Ejnar Munksgaard Copenhagen 168 p Faegri Knut amp Iversen J 1964 Textbook of pollen analysis 2nd edn Scandinavian University Books Copenhagen 237 p Faegri K amp Iversen J 1975 Textbook of pollen analysis 3rd ed by Knut Faegri Scandinavian University Books Copenhagen 294 p Faegri K amp Iversen J 1989 Textbook of pollen analysis 4th ed by K Faegri P E Kaland amp K Krzywinski John Wiley amp Sons Chichester 328 p Scientific works by Johs Iversen editIversen J 1928 Uber Isoetes in China und Japan Dansk Botanisk Arkiv 5 23 1 4 Iversen J 1928 Uber die Spezies Umgrenzung und Variation der Isoetes echinospora Durieu Botanisk Tidsskrift 40 2 126 131 Iversen J 1929 Studien uber die pH Verhaltnisse danischer Gewasser und ihren Einfluss auf die Hydrophyten Vegetation Botanisk Tidsskrift 40 4 277 333 Keywords plant ecology Iversen J 1930 Isoetes In Christensen C The pteridophytes of Madagascar Dansk Botanisk Arkiv 7 200 201 Gabrielsen E K amp Iversen J 1933 Die Vegetation der Halbinsel Skallingen Botanisk Tidsskrift 42 4 355 383 Keywords plant ecology Iversen J 1933 Studier over Vegetationen i Ringkobing Fjord for Hvide Sande Kanalens genabning 1931 with English summary In Johansen A C amp Blegvad H eds Ringkobing Fjords Naturhistorie i Brakvandsperioden 1915 1931 Keywords plant ecology Iversen J 1934 Fund af Vildhest Equus caballus fra Overgangen mellem Sen og Postglacialtid i Danmark Meddelelser fra Dansk Geologisk Forening 8 327 340 1 Danmarks Geologiske Undersogelse IV raekke 2 13 1 16 Iversen J 1934 Moorgeologische Untersuchungen auf Gronland Ein Beitrag zur Beleuchtung der Ursachen des Unterganges der mittelalterlichen Nordmannerkultur Meddelelser fra Dansk Geologisk Forening 8 341 358 2 Keywords Demise of Greenland Norse settlements Iversen J 1936 Biologische Pflanzentypen als Hilfsmittel in der Vegetationsforschung Ein Beitrag zur okologischer Charakterisierung und Anordnung der Pflanzengesellshaften Doctoral dissertation University of Copenhagen Levin amp Munksgaard Kobenhavn Keywords plant ecology Iversen J 1936 Sekundares Pollen als Fehlerquelle Eine Korrektionsmethode zur Pollenanalyse minerogener Sedimente Danmarks Geologiske Undersogelse IV raekke 2 15 1 24 Keywords pollen analysis Iversen J 1937 Pollenalalytiske Tidsbestemmelser af midtjydske mesolitiske Bopladser Appendix til Th Mathiassen Gudenaa Kulturen Aarboger for nordisk Oldkyndighed og Historie 1937 182 186 Iversen J 1937 Undersogelser over Litorinatransgressioner i Danmark Meddelelser fra Dansk Geologisk Forening 9 223 232 3 Nominated as one of the most significant 20th Century publications in Danish geology It is one of the most cited publications on short term low amplitude sea level changes and their causes Iversen J 1938 Et botanisk Vidne om Nordboernes Vinlandsrejser Naturhistorisk Tidende 2 113 116 Iversen J 1939 Planterester fremdragne i tre Hoje i Haderslev Amt In Broholm H C amp Hald M Skrydstrupfundet en sonderjysk Kvindegrav fra den aeldre Bronzealder Nordiske Fortidsminder 3 18 21 Keywords plant macrofossils Bronze Age tumuli Iversen J 1940 Blutenbiologische Studien I Dimorphie und Monomorphie bei Armeria English summary Biologiske Meddelelser Kongelige Danske Videnskabernes Selskab 15 8 1 40 Keywords palynology Iversen J 1941 Landnam i Danmarks Stenalder En pollenanalytisk Undersogelse over det forste Landbrugs Indvirkning paa Vegetationsudviklingen Dansk tekst 7 59 Engl text 60 65 Danmarks Geologiske Undersogelse II raekke 66 1 68 reprinted 1964 Keywords palaeoecology history of agriculture Degerbol M amp Iversen J 1942 On a find of Sheat fish Silurus glanis L from the Ancylos period in Denmark Videnskabelige Meddelelser fra Dansk Naturhistorisk Forening 105 435 446 Iversen J amp Olsen Sigurd 1943 Die Verbreitung der Wasserpflanzen in Relation zur Chemie des Wassers Botanisk Tidsskrift 46 136 145 Keywords plant ecology Iversen J 1943 En pollenanalytisk Tidsfaestelse af Ferskvandlagene ved Norre Lyngby Meddelelser fra Dansk Geologisk Forening 10 130 151 4 Keywords Late Weichselian Iversen J 1943 Et Litorinaprofil ved Dybvad i Vendsyssel Meddelelser fra Dansk Geologisk Forening 10 324 328 5 Iversen J 1944 Viscum Hedera and Ilex as climatic indicators A contribution to the study of the Post Glacial temperature climate Geologiska Foreningen i Stockholm Forhandlingar 66 463 483 Keywords palaeoecology plant ecology Iversen J 1944 Helianthemum som fossil Glacialplante i Danmark Geologiska Foreningen i Stockholm Forhandlingar 66 774 776 Keywords Late Weichselian Degerbol M amp Iversen J 1945 The bison in Denmark A zoological and geological investigation of the finds in Danish Pleistocene deposits Danmarks Geologiske Undersogelse II raekke 73 1 62 Iversen J 1946 Datering af en senglacial Boplads ved Bromme Datation Geologique de la station glaciaire posterieure de Bromme Aarboger for nordisk Oldkyndighed og Historie 1946 197 231 Keywords Late Weichselian Iversen J 1947 Plantevaekst Dyreliv og Klima i det senglaciale Danmark Geologiska Foreningen i Stockholm Forhandlingar 69 67 78 Keywords Late Weichselian Iversen J 1947 Centaurea cyanus pollen in Danish late glacial deposits Meddelelser fra Dansk Geologisk Forening 11 197 200 6 Keywords Late Weichselian Iversen J 1947 Senglacialens nivaforandingar och klimatutveckling contribution to discussion In Geologklubben vid Stockholms Hogskola Nordiskt kvartargeologisk mote den 5 9 November 1945 pp 215 217 252 Geologiska Foreningen i Stockholm Forhandlingar 69 215 217 Keywords Late Weichselian Iversen J 1947 Pollenanalysens principer och tillampning contribution to discussion In Geologklubben vid Stockholms Hogskola Nordiskt kvartargeologisk mote den 5 9 November 1945 Geologiska Foreningen i Stockholm Forhandlingar 69 241 242 Iversen J 1948 Palaeobotany and pollen analysis In The humanities and the Sciences in Denmark during the Second World War Ejnar Munksgaard Copenhagen pp 313 315 Iversen J 1949 The influence of prehistoric man on vegetation Danmarks Geologiske Undersogelse IV raekke 3 6 1 25 Keywords palaeoecology history of agriculture Iversen J 1949 Determinations of the specific gravity of the roots of swamp meadow and dry soil plants Oikos 1 1 5 7 Keywords plant ecology Iversen J amp Troels Smith J 1950 Pollenmorfologiske definitioner og typer Danmarks Geologiske Undersogelse IV raekke 3 8 1 54 Keywords palynology Iversen J 1951 Steppeelementer i den senglaciale flora og fauna English summary Meddelelser fra Dansk Geologisk Forening 12 174 175 8 Keywords Late Weichselian Iversen J 1952 53 Origin of the flora of Western Greenland in the light of pollen analysis Oikos 4 85 103 9 Iversen J 1953 Radiocarbon dating of the Allerod period Science 118 3053 4 6 10 Iversen J 1953 Origin and postglacial development of the flora of West Greenland in the light of pollen analysis Proceedings of the Seventh International Botanical Congress Stockholm July 12 20 1950 eds H Osvald amp E Aberg pp 634 636 Iversen J 1953 Identification of difficult pollen types by means of structural characters Proceedings of the Seventh International Botanical Congress Stockholm July 12 20 1950 eds H Osvald amp E Aberg pp 873 874 Keywords palynology Iversen J 1953 The zonation of the salt marsh vegetation of Skallingen in 1931 34 and in 1952 Geografisk Tidsskrift 52 113 118 Iversen J 1954 The Late Glacial flora of Denmark and its relation to climate and soil Danmarks Geologiske Undersogelse II raekke 80 87 119 Keywords Late Weichselian Iversen J 1954 The late glacial flora of South Scandinavia and its recent relics Huitieme Congres International de Botanique Paris 1954 Comptes rendus des seances et rapports et communications deposes lors du congres dans les sections 3 4 5 et 6 pp 241 242 Keywords Late Weichselian Iversen J 1954 Uber die Korrelationen zwischen den Pflanzenarten in einem gronlandischen Talgebiet Vegetatio 5 6 238 246 Iversen J 1956 Forest clearance in the Stone Age Scientific American 194 36 41 German translation 1956 Neolitische Waldrodungen beleuchtet durch Pollenanalyse und Experiment Mitteilungen der Naturforschender Gesellschaft Bern N F 13 30 32 French translation 1960 Le defrichement da la foret pendant l age de pierre Les Naturalistes Belges 41 53 64 Keywords palaeoecology history of agriculture Iversen J 1957 Istidsrelikter i Bornholms flora In Bornholms naturhistoriske Forening udgivet i anledning af 25 ars jubilaeet pp 35 37 Keywords Late Weichselian Iversen J 1954 Pollenanalytischer Nachweis des Reliktencharakters eines jutischen Linden Mischwaldes Veroffentlichungen des Geobotanischen Institutes Rubel in Zurich 33 137 144 Iversen J 1958 The bearing of glacial and interglacial epochs on the formation and extinction of plant taxa In Hedberg O ed Systematics of to day Proceedings of a symposium held at the University of Uppsala in commemoration of the 250th anniversary of Carolus Linnaeus Acta Universitatis Upsaliensis Uppsala Universitets Arsskrift 1958 6 210 215 Keywords evolution Iversen J 1960 Problems of the early post glacial forest development in Denmark Danmarks Geologiske Undersogelse IV raekke 4 3 1 32 Keywords palaeoecology Iversen J 1964 Retrogressive vegetational succession in the Post glacial Journal of Ecology 52S 59 70 Keywords palaeoecology Iversen J 1964 Plant indicators of climate soil and other factors during the Quaternary INQUA VIth international Congress on the Quaternary Warszawa 1961 2 421 428 Iversen J amp Faegri Knut 1965 Field techniques In Handbook of Paleontological Techniques p 482 494 San Francisco Iversen J amp Faegri Knut 1966 terminology in palynology Pollen et Spores 8 345 445 Iversen J 1969 Retrogressive development of a forest ecosystem demonstrated by pollen diagrams from a fossil mor Oikos 12S 35 49 Keywords palaeoecology Iversen J 1973 The development of Denmark s nature since the last glacial Danmarks Geologiske Undersogelse V raekke 7C 1 126 Keywords palaeoecologyThe standard author abbreviation Iversen is used to indicate this person as the author when citing a botanical name 4 References edit a b Hafsten Ulf 13 November 1971 Johannes Iversen Grana 11 3 doi 10 1080 00173137109430487 Obituary Tribute To Four Botanists New Phytologist 72 5 1245 1247 September 1973 doi 10 1111 j 1469 8137 1973 tb02100 x a b J Troels Smith 1975 Johannes Iversen PDF Bulletin of the Geological Society of Denmark vol 24 Retrieved May 1 2020 International Plant Names Index Iversen Other sources editObituary in Botanisk Tidsskrift 67 3 275 277 1972 by Svend Th Andersen Obituary in the New Phytologist 72 5 1245 1250 1973 by Harry Godwin doi 10 1111 j 1469 8137 1973 tb02100 xExternal links editVirtual International Authority International Plant Names Index Retrieved from https en wikipedia org w index php title Johannes Iversen amp oldid 1180604810, wikipedia, wiki, book, books, library,

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