The influence of altitude on the distribution of family of syrphids
Daoud Boukria
Broschiertes Buch

The influence of altitude on the distribution of family of syrphids

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Syrphids or Hoverflies or Flowerflies are widespread Diptera in the world. They are one of the largest families with more than 6000 species, this family whose size varies from a few millimeters to 24 mm is easily recognizable on the ground, because of its particular flight by doing the on-site. Syrphids can be found in almost all terrestrial environments except cavernicolous, from sea-level to over 3000 m altitude and from the equator north of the Arctic Circle. Adults are mostly sun-loving, looking for sunshine in an open environment (meadows, edges of fields, gardens, edges ...), some specie...