Keanekaragaman Jenis Aves di Kawasan Arboretum Universitas Sumatera Utara, Kwala Bekala, Deli Serdang, Sumatera Utara

Abstract

The diversity of birds (Aves) in Arboretum at Universitas Sumatera Utara has potential to serve as an enviromental bioindicator and supports as a conservation area for bird species conservation. This research was conducted for 4 weeks at Universitas Sumatera Utara, Kwala Bekala. The aimed was to determine bird diversity and to analyze diversity index (H’) and evenness (E’), as well as to examine the Time Square (Bird Encounter Time Segment) value. The method used was by direct observation using line transect method combined with the Point Count method. The result showed that 51 speccies of birds have recorded, consisted of 10 orders and 28 families. The bird diversity index has reached 2.851, and the bird evenness has 0.797. The order Passeriformes has the highest number with total 23 species. The most dominant species was Asian House Martin (Delichon dasypus), with popolation 591. The conservation status in the International Union for Conservation of Nature (IUCN) Red List has identified two categories, with the highest number of species 50 falling under the Least Concern category, and only one species, Acridotheres javanicus, classified as Vulnerable. Nine species have listed under Appendix II of Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES) and have protected under Government Regulation, Minastry of Environment and forestry Number. P.20 Year 2018. The highest time square analysis values have recorded as follows, transect 1 was Pernis ptilorhyncus with time square in the morning and Bubulcus ibis in the evening both with time square 5 minutes. Transect 2 was Dicrurus sumatranus in the morning with time square 3.5 minutes. Transect 3 was Aviceda leuphotes, Haliastrus indus, Treron vernans with time square in the morning and Eurystomus orientalis with time square in the evening with a duration of 3 minutes. Transect 4 was Eurystomus orientalis in the evening with a duration of 3 minutes.