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Biogeography of photoautotrophs in the high polar biome

Pointing, Stephen B. and Büdel, Burkhard and Convey, Peter and Gillman, Len N. and Körner, Christian and Leuzinger, Sebastian and Vincent, Warwick F.. (2015) Biogeography of photoautotrophs in the high polar biome. Frontiers in Plant Science, 6. p. 692.

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Official URL: http://edoc.unibas.ch/40018/

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Abstract

The global latitudinal gradient in biodiversity weakens in the high polar biome and so an alternative explanation for distribution of Arctic and Antarctic photoautotrophs is required. Here we identify how temporal, microclimate and evolutionary drivers of biogeography are important, rather than the macroclimate features that drive plant diversity patterns elsewhere. High polar ecosystems are biologically unique, with a more central role for bryophytes, lichens and microbial photoautotrophs over that of vascular plants. Constraints on vascular plants arise mainly due to stature and ontogenetic barriers. Conversely non-vascular plant and microbial photoautotroph distribution is correlated with favorable microclimates and the capacity for poikilohydric dormancy. Contemporary distribution also depends on evolutionary history, with adaptive and dispersal traits as well as legacy influencing biogeography. We highlight the relevance of these findings to predicting future impacts on diversity of polar photoautotrophs and to the current status of plants in Arctic and Antarctic conservation policy frameworks.
Faculties and Departments:05 Faculty of Science > Departement Umweltwissenschaften > Ehemalige Einheiten Umweltwissenschaften > Pflanzenökologie (Körner)
UniBasel Contributors:Körner, Christian
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:Frontiers Media
ISSN:1664-462X
Note:Publication type according to Uni Basel Research Database: Journal article
Identification Number:
Last Modified:30 Jun 2016 11:00
Deposited On:01 Jun 2016 08:21

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