Electronic Theses and Dissertation

Telah dilakukan penelitian tentang aktivitas mencari makan Geniotrigona thoracica dan tumbuhan pakannya dengan tujuan untuk mengetahui aktivitas mencari makan G. thoracica, mengetahui hubungan aktivitas mencari makan G. thoracica dengan faktor fisik lingkungan (suhu, kelembapan dan intensitas cahaya) dan mengetahui jenis tumbuhan yang menjadi sumber pakan dan bahan pembuat sarang. Penelitian ini dilakukan pada bulan Februari-Mei 2024. Metode yang digunakan adalah metode observasi terhadap aktivitas mencari makan dari tiga koloni G. thoracica. Pengambilan data aktivitas mencari makan dilakukan selama 10 menit setiap satu jam (lima menit keluar dan lima menit masuk sarang) mulai dari pukul 06.00-18.00 WIB. Pengamatan terhadap aktivitas mencari makan dibagi menjadi dua yaitu aktivitas keluar sarang dan aktivitas masuk sarang. Selain itu, pengamatan terhadap tanaman pakan dan bahan sarang menggunakan metode transek dengan delapan jalur mengikuti arah mata angin dalam radius 500 m dari pusat sarang (koloni). Pengamatan terhadap faktor lingkungan fisik (suhu, intensitas cahaya dan kelembapan relatif udara) dilakukan bersamaan dengan pengamatan aktivitas mencari makan dan bahan sarang. Aktivitas mencari makan G. thoracica berkorelasi positif dengan suhu dan intensitas cahaya, sebaliknya berkorelasi negatif dengan kelembapan. Polen menjadi bahan makanan terbanyak yang dibawa oleh lebah pekerja, diikuti oleh resin dan nektar. Tumbuhan yang menjadi sumber pakan dan bahan sarang G. thoracica di kawasan kampus Universitas Syiah Kuala sebanyak 131 jenis dan 8 jenis diantaranya menjadi sumber resin.

Research has been conducted on the foraging activities of Geniotrigona thoracica and its food plants, with the aim of understanding the foraging activities of G. thoracica, examining the relationship between the foraging activities of G. thoracica and physical environmental factors (temperature, humidity, and light intensity), and identifying the types of plants that serve as food sources and nest-making materials. This research was conducted from February to May 2024. The method used was the observation of the foraging activity of three G. thoracica colonies. Data collection on foraging activities was carried out for 10 minutes every hour (five minutes for exiting and five minutes for entering the nest) from 06:00 to 18:00 WIB. Observations of foraging activity were divided into two categories: nest exit activity and nest entry activity. In addition, observations of food plants and nest materials were made using the transect method with eight paths following the cardinal directions within a radius of 500 m from the center of the nest (colony). Observations of physical environmental factors (temperature, light intensity, and relative humidity of the air) were conducted simultaneously with observations of foraging activities and nest materials. G. thoracica foraging activity was positively correlated with temperature and light intensity and negatively correlated with humidity. Pollen was the most abundant food carried by worker bees, followed by resin and nectar. In the campus area of Syiah Kuala University, there were 131 plant species that served as sources of food and nesting material for G. thoracica, and 8 of these species were sources of resin.