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Video: Tina Dahl and Marcos Poricres
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LGM and postglacial migration
During the Last Glacial Maximum (LGM), biodiversity was significantly reduced throughout the Arctic (Willerslev et al., 2014); however, the extent of this biodiversity loss varied. The
Arctic Freshwater Habitats
The arctic freshwater environment experienced dramatic climatic shifts during the Holocene (10,000 years ago to present) and Pleistocene, which has had enormous effects on the
Ecosystem functions – Invertebrates
The group invertebrate contains a great diversity of taxa and groups; from hard-bodied insects to soft bodied organisms such as worms. Given this diversity it
Mutualistic fungi live on other organisms, however in contrast to parasitism, mutualism benefits all involved organisms. The fungi get nutrition, mainly carbohydrates, from their partners,
What enviroment do microbes encounter in the Arctic?
Environmental conditions in the Arctic are highly variable in space and they can fluctuate seasonally. As for all living organisms, Arctic microbes are affected by
Diversity of bryophytes
Bryophytes are the second most diverse group among land plants after the flowering plants (Magnoliophyta, ~350 000 described species; Glime 2007). Defining the number of species of
Diversification of Arctic flora and fauna during the Pleistocene
On an evolutionary time-scale, the arctic flora and fauna have had very short time to develop. This partly explains the low number of truly endemic
Plant-insect phenology and physiological synchrony
The impact of insect herbivores on Arctic plants is known to be dismissable (Roslin et al. 2013); however, successful Arctic herbivores need to ensure they
What is a virus? Viruses are infectious agents that replicate exclusively within a living cell. Viruses can infect all types of organisms, from animals and
What are bryophytes?
Evolutionary origin Bryophytes belong to the embryophytes, which include all land plants. Evidence from structural, biochemical, and molecular data supports the view that bryophytes and all
Systematics of fungi
Modern fungal systematics is based upon genetic analysis. However, and structure of the hyphal cells are also important. Below you will find an overview of
Bacteria are the major drivers of the Earths biogeochemical cycles, and therefore very important components of the ecosystems. There are estimations showing that more than
Saprotrophic fungi degrade dead organisms or their remains, such as litter or dung. Depending on their mode of breaking down cellulose or lignin, we recognise
What is a fungus?
The fungal kingdom (Fungi) is related to the animal kingdom. They separated approximately 1.5 billion years ago. Like animals and plants, fungi are eukaryotes, which
Parasitic and pathogenic fungi obtain their nutrition from other living organisms, and have a negative effect upon the individuals – hosts – they are parasites
Microbial eukaryotes are an evolutionary diverse group that gathers various eukaryotic organisms of often microscopic sizes, such as protist and fungi. Protists, comprise a large