KEANEKARAGAMAN ODONATA (Dragonflies) DI BEBERAPA PERSAWAHAN BERDASARKAN SEX RASIO ODONATA DEWASA DAN PANJANG TUBUH (INSTAR) NIMFA ODONATA
Abstract: The research on
Odonata diversity was conducted in Antapani, Cigadung, Dago Pakar and Dago
Pojok paddy fields located in Bandung. The objectives of the study were to
identify Odonata species, to analyse the population dynamics and abundance of
Odonata. Adults of Odonata were taken by sweeping net (depth 60 cm, Ø 30-38
cm), and nymphs were caught by sieve of the size of Ø 30 cm. The samples were
done taken paddy growth. Adults. Two (2) families of adult Odonata were
identified and consist of 4 species, i.eOrthetrum sabina (Libellulidae), Crocothemis
servilia (Libellulidae), Neurothemis terminata (Libellulidae) and Anaciaeshna
jaspidea (Aeshnidae). Three (3) species of nymphs Odonata were identified, i.e:
Orthetrum sabina (Libellulidae), Crocothemis servilia (Libellulidae), and
Anaciaeshna jaspidea (Aeshnidae). The result of this research showedthat
Crocothemis servilia (Libellulidae) and Orthetrum sabina (Libellulidae) were
dominant species in four research location. In the early paddy growth (vegetatif phase to pregnant
phase ~ 22 - 27 day) showed the highest number of Odonata (adult and nymph)
compared with the other phase, by the time there will be a decrease in the
population of Odonata. The sex ratio on adult Odonata show that male Odonata is
more biggestthan Odonata female. The highest lenght of odonata nympha at
vegetative and primodial phase at the
first stage of paddy growth and the lowest lenght at bunting, masak susu and
masak penuh phase.
Penulis: Irwandi Ansori
Kode Jurnal: jpbiologidd140193
