Komposisi Komunitas Collembola Permukaan Tanah pada Hutan Sekunder dan Agroforestri Kopi di Desa Kutagugung Kecamatan Namanteran Kabupaten Karo

Abstract

The research about “Collembola community composition ground on the secondary forest and coffee agroforestry in the village Kutagugung, Namanteran districts, counties Karo” has been done at Mei-September 2013. The taking of sample is done in two location they are secunder forest, coffee agroforestry. The technique sampling that is used is Purposive Random Sampling. The taking of sample is done by using Pitfall Trap method. The result of the research is found that the re are 2 ordo, 5 family and 12 species. The hignest total dense in secunder forest gained 121,417 individual/m2 while coffee groforestry gained 109, 475 individual/m2 . The value of present frequency both location are between Accidental and Accesory. Collembola of the land surface which has value of KR >10 % and FK > 25 % in secunder forest are Entomobrya sp.1, Lepidosira sp. and Ptenothrix sp. in coffee agroforestry are Entomobrya sp.2, Homidia sp., Pseudosinella sp. The compotition of highest value species in secunder forest is Lepidosira sp. and in coffee agroforestry are Entomobrya sp.2, and Pseudosinella sp.