UV Radiation and Arctic Ecosystems (Ecological Studies)

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Peltigera aphthosa L. Laudon, having cyanobacteria in the photobiont layer below the upper cortex, did not experience any changes due to radiation regimes.

Unter den Schollen tobt das Leben

The difference is probably related to the location of the cyanobacteria. While the Nostoc cells are protected by the fungal, melanized upper cortex in P. Under certain environmental conditions, an increasing UV-B radiation will dramatically affect nitrogen fixation in arctic tundra vegetation, which in turn may have severe influence on the nitrogen budget in these environments. Further long-term studies are necessary to conclude if these effects are temporal and how concurrent climatic changes will influence the nitrogen balance of the ecosystem.

Systems Ecology. Fingerprint ultraviolet B radiation.

Effects of UV radiation on aquatic ecosystems and interactions with other environmental factors.

Arctic region. Peltigera aphthosa. Plant Ecology , , Solheim, B. In: Plant Ecology.

Research in Svalbard (RiS) Portal

In: Plant Ecology , Vol. Properties of cyanobacterial UV-absorbing pigments suggest their evolution was driven by optimizing photon dissipation rather than photoprotection Aleksandar Simeonov , Karo Michaelian. Effects of UVB radiation on marine and freshwater organisms: a synthesis through meta-analysis. Betsy A. Bancroft , Nick J.

Baker , Andrew R. Shahabuddin , Toshiyoshi Araki , Takao Yoshimatsu.


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References Publications referenced by this paper. Assessment of the risk of solar ultraviolet radiation to amphibians. Dose-dependent induction of hindlimb malformations in the northern leopard frog Rana pipiens. Gerald T. Ankley , Stephen C.

UV Radiation and Greenhouse Gases

Diamond , Assessment of the risk of solar ultraviolet radiation to amphibians. In situ characterization of exposure in amphibian habitats. Johnson , R.

Axler , A. Glacial meltwater dynamics in coastal waters west of the Antarctic peninsula. Heidi Melita Dierssen , Raymond D. Lebert , M. Schuster , D. Increased UVsusceptibility in Daphnia at low calcium concentrations , Limnol. Penetration of solar radiation into the water column of the central subtropical Atlantic Ocean—optical properties and possible biological consequences Helmut Piazena , E Perez-Rodrigues , D.

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