Preferensi Pocota Personata Lepeleiter & Serville terhadap empat spesies tumbuhan familia Asteraceae Genus Cosmos dan Tagetes beserta kombinasinya

ABSTRAK

Penelitian ini bertujuan untuk mengetahui tingkat preferensi P. personata terhadap empat spesies tumbuhan familia Asteraceae genus Cosmos dan Tagetes beserta kombinasinya. Penelitian dilaksanakan mulai bulan Februari sampai dengan Maret 2001 di Laboratorium Ekologi dan Diversitas-Hewan, Jurusan Biologi, Fakultas M IPA, Universitas Brawijaya Malang.

Uji preferensi dilakukan dengan menggunakan bahan P. personata yang ditangkap langsung dari alam dan serangkaian alat; olfactometer 4 lengan. Persentase ketertarikan dan waktu orientasi P. personata terhadap tumbuhan tersebut dicatat. Penelitian ini merupakan jenis penelitian deskriptif-kualitatif.

Hasil uji preferensi dengan 20 kali ulangan menunjukkan bahwa P. personata tertarik pada bau C. caudatus sebanyak 7 kali dengan persentase ketertarikan 35 ٠ /٥dan waktu orientasi 9 menit 10 detik. Preferensi terhadap C. sulphureus sebanyak 6 kali dengan persentase ketertarikan 30% dan waktu orientasi 4 menit 56 detik Ketertarikan terhadap T. patula sebanyak 2 kali, 10 % dan waktu orientasi rata-rata 17 detik. Ketertarikan terhadap T. erecta sebanyak 2 kali, 10 % dan waktu orientasi rata-rata 5 menit 51 detik. Preferensi P. personata untuk tidak memilih terhadap spesies tumbuhan famili Asteraceae sebesar 15 %. Uji preferensi dengan menggunakan kombinasi spesies tumbuhan famili Asteraceae diperoleh persentase ketertarikan P. personata terhadap C. caudatus dan T. patula sebanyak 7 kali, 35 %, waktu orientasi 6 menit 8 detik. Preferensi P. personata untuk tidak memilih sebanyak 6 kali, 30%. Kombinasi C.caudatus - C. sulphureus 4 kali, 20% dengan waktu orientasi 4 menit 14 detik. Kombinasi C.caudatus dan C. caudatus sebanyak 2 kali, 10% dengan waktu orientasi 9 menit 24 detik dan kombinasi C.caudatus dan T.erecta sebanyak 1 kali, 5% dengan waktu orientasi 2 menit.

ABSTRACT

The aim of this research is to know the preferency of Pocotapersonata Lepeleiter & Serville towards four species of family Asteraceae and their combinations. This research was begun on February till March 2001 in Ecology and Animal Diversity’s Laboratories, Departement of Biology, Mathemathic’s and Natural Science’s Faculty, Brawijaya University in Malang.

The Preferency test was conducted by using P. personata that had been caught directly from yield and olfactometer with 4٠armed. The persentage of P. personata and its orientation duration to these plants were be noted. This research is descriptive-qwalnative ones.

The results with 20 times repeatations showed that P.personata was most attracted to C.caudatus as 7 times and 35% prerentially and its orientation’s duration 9 minute and 10 secon. The preferency towards C.sulphureus was 6 times and 30% preferentially and its orientation duration 4 minute and 56 secon. The preferency towards T.patula was 2 times, 10،>o and its orientation duration 17 secon. The preferency towards T.erecla was 2 times, 10% and its orientation duration 5 minute and 51 secon. The persentage to unchoosing anything was 15%. The preference test by using combination species of family Asteraceae had gotten percentage of attractively of P.personata on C.caudatus and T.patula as 7 times was 35% and its orientation duration 6 minute and 8 secon. The preferential of !,.personata to unchoosing anything as 6 times was 30/٥o. The combination of C.caudatus and C.sulphureus as 4 times were 20% and its orientation duration 4 minute 14 secon. The combination of C.caudatusand C.caudatus•was attracting as 2 times, 10% and its orientation’s duration 9 minute and 24 secon and the combination of C. caudatus and T.erecta was attracting as 1 times, 5 % and its orientation’s duration 2 minute.