Biology:Glacial relict

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Short description: Population of a cold-adapted species remaining after its glacier habitat has receded

A glacial relict is a population of a species previously common during a glacial period that retreated into refugia during interglacial periods. [1] They are typically cold-adapted species with a distribution restricted to regions and microhabitats that allow them to survive despite climatic changes.[1][2]

Examples:

  • The biogeography of various aquatic species deemed glacial relicts that are found in Lake Sommen is likely related to a different geography during the early history of the lake. One theory claims that aquatic species were transferred from the Baltic Ice Lake through a natural lock system in connection with a temporary advance of the ice-front during the Younger Dryas.[3] On land, the unusual occurrence of dwarf birch near Sund is also judged to be a leftover from a cold geological past.[4]

See also

References

  1. 1.0 1.1 Dítě, Daniel; Hájek, Michal; Svitková, Ivana; Košuthová, Alica; Šoltés, Rudolf; Kliment, Ján (September 2018). "Glacial-relict symptoms in the Western Carpathian flora". Folia Geobotanica 53 (3): 277–300. doi:10.1007/s12224-018-9321-8. 
  2. Jiménez-Alfaro, Borja; García-Calvo, Laura; García, Pedro; Acebes, José Luis (2016). "Anticipating extinctions of glacial relict populations in mountain refugia". Biological Conservation 201: 243–251. doi:10.1016/j.biocon.2016.07.015. 
  3. Kinsten, Björn (2010) (in sv). De glacialrelikta kräftdjurens utbredning i södra Sverige (Götaland och Svealand) (Report). Länsstyrelsen Blekinge län. pp. 1–19. https://www.lansstyrelsen.se/download/18.2887c5dd16488fe880d55ad0/1537435814356/rapport-2010-7.pdf. Retrieved April 19, 2019. 
  4. Hellgren, George (1960). "Något om växtligheten i Ydre". in Filén, Thure (in sv). Ydre-Boken. Linköping. pp. 86–91.