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Polarphid : Polar aphid

Polarphid: aphids of polar regions

A very few insect species have succeeded in colonizing polar regions

Polarphid (Polar aphid) présente les recherches menées à l'UMR BiO3P sur les pucerons des milieux polaires. Ces régions situées aux marges de l'aire de répartition des pucerons permettent d'aborder l'étude du fonctionnement de populations d'insectes en conditions extrêmes.

The aphid group includes some 4,400 species worldwide, which have preferentially developed in the temperate regions of the northern hemisphere.

The arctic Svalbard archipelago and the circumpolar islands of the southern hemisphere are the more extreme habitats colonized by aphids. We are at the insects life edges.

Svalbard hosts a very few endemic species highly adapted to extreme environment and vulnerable to climate change. Subantarctic islands were recently colonized by a low number of cosmopolitan species and now have to face these invaders.

Our researches focus on the ecology of aphids in Svalbard (Spitsbergen) and on the French subantarctic islands (Kerguelen, Crozet, Amsterdam). We are particularly interested in interactions between aphids and their biotic and abiotic environment, in adaptive biology and in the biology of invasions.