Changes of flora-information over time: examples from Ethiopia and Eritrea and the Nordic Countries
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Changes of flora-information over time : examples from Ethiopia and Eritrea and the Nordic Countries. / Friis, Ib.
In: Ethiopian Journal of Biological Sciences, Vol. 13, No. Suppl., 2014, p. 47-67.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Changes of flora-information over time
T2 - examples from Ethiopia and Eritrea and the Nordic Countries
AU - Friis, Ib
N1 - Stated to have been published in 2014, but appeared early 2015.
PY - 2014
Y1 - 2014
N2 - Changes in Flora-information over time can be divided into three different categories: (1) “Real changes” (species enter the region by natural dispersal or become extinct). (2) “Floristic changes” (species known from elsewhere are discovered). (3) “Taxonomic changes” (species are discovered and described, taxonomic revisions change the status of previously known species). The Linnaean taxonomic methods for describing and naming plant species, which we still use today in a refined form, were developed in the middle of the 18th century. The Nordic flora was one of the first that was subjected to the Linnaean methods, but these methods were also applied to the flora of Ethiopia and Eritrea before the end of the 18th century. An intensive activity involving floristic and taxonomic changes took place in Ethiopia and Eritrea in the 19th century, particularly before ca. 1850, after which a period with a more steady level of activities followed. The Ethiopian Flora Project, which has been active between 1980 and 2009, has resulted in more than 470 species being described as new during the period, and more than 440 species described from elsewhere have been discovered to occur inside the Flora area. Recent studies of the Orchidaceae family in Scandinavia has demonstrated considerable changes in our information about that family in Scandinavia during the last 50 years, both real, floristic and taxonomic changes. Similar, or even greater, changes are to be expected in the flora of Ethiopia and Eritrea in the future.
AB - Changes in Flora-information over time can be divided into three different categories: (1) “Real changes” (species enter the region by natural dispersal or become extinct). (2) “Floristic changes” (species known from elsewhere are discovered). (3) “Taxonomic changes” (species are discovered and described, taxonomic revisions change the status of previously known species). The Linnaean taxonomic methods for describing and naming plant species, which we still use today in a refined form, were developed in the middle of the 18th century. The Nordic flora was one of the first that was subjected to the Linnaean methods, but these methods were also applied to the flora of Ethiopia and Eritrea before the end of the 18th century. An intensive activity involving floristic and taxonomic changes took place in Ethiopia and Eritrea in the 19th century, particularly before ca. 1850, after which a period with a more steady level of activities followed. The Ethiopian Flora Project, which has been active between 1980 and 2009, has resulted in more than 470 species being described as new during the period, and more than 440 species described from elsewhere have been discovered to occur inside the Flora area. Recent studies of the Orchidaceae family in Scandinavia has demonstrated considerable changes in our information about that family in Scandinavia during the last 50 years, both real, floristic and taxonomic changes. Similar, or even greater, changes are to be expected in the flora of Ethiopia and Eritrea in the future.
KW - Faculty of Science
KW - Ethiopia
KW - Ethiopian Flora project
KW - Eritrea
KW - Floristic changes
KW - Floristic exploration
KW - Taxonomic changes
KW - Ethiopia
KW - Eritrea
KW - Flristic change
KW - Floristic exploration
KW - Taxonomic change
KW - Ethiopian Flora Project
M3 - Journal article
VL - 13
SP - 47
EP - 67
JO - Ethiopian Journal of Biological Sciences
JF - Ethiopian Journal of Biological Sciences
SN - 1819-8678
IS - Suppl.
ER -
ID: 143281648