Judul: Species Diversity and Conservation Strategy of Butterfly in Taman Hutan Kampus IPB Dramaga Bogor
Abstrak: Taman Hutan Kampus diketahui memiliki beberapa tipe habitat dan diduga memiliki potensi keanekaragaman kupu-kupu serta tumbuhan pakan dan tumbuhan inang yang berbeda. Penelitian ini bertujuan untuk menganalisis keanekaragaman dan komposisi jenis kupu-kupu, menginventarisasi tumbuhan inang dan tumbuhan pakan kupu-kupu, serta menyusun strategi konservasinya di empat tipe habitat Taman Hutan Kampus. Metode yang digunakan yaitu pollard transect dan trap. Data yang diambil pada penelitian ini adalah jumlah jenis dan jumlah individu kupu-kupu, jumlah jenis tumbuhan pakan dan tumbuhan inang kupu-kupu, serta karakteristik habitat. Hasil menunjukkan terdapat 66 jenis kupukupu dengan total sebanyak 975 individu, teridentifikasi sebanyak 89 jenis tumbuhan inang dan 62 jenis tumbuhan pakan kupu-kupu. Nilai kekayaan, keanekaragaman, dan kemerataan jenis kupu-kupu tertinggi terdapat di tipe habitat lahan tertutup. Nilai kesamaan komunitas tertinggi diperoleh di tipe habitat lahan terbuka dan kebun sawit. Upaya kegiatan konservasi seperti pengamatan secara berkala, penanaman tumbuhan inang dan pakan, serta pembuatan feeding site dan penangkaran perlu dilakukan untuk menjamin kelestarian keanekaragaman jenis kupu-kupunya.
Keyword: butterfly, conservation, diversity, food plant

Judul: Dinamika Keanekaragaman Jenis dan Karakteristik Habitat Kupu-kupu di Kawasan Kampus IPB Darmaga
Abstrak: The diversity of wildlife including butterfly is one of the factors that becomes a consideration on the declaration of Bogor Agricultural Institute (IPB) as Campus Biodiversity. The development of land use at IPB Darmaga requires a research on the relationship between habitat characteristics with the diversity of butterfly as a comparison with the previous study to provide habitat management data for the management of IPB Darmaga campus. The study was conducted at eight habitat types in IPB Darmaga, which are: 1) Arboretum of Landscape, 2) Al Hurriyah Forest, 3) Sengon Forest, 4) Akasia Forest, 5) DAR Area, Faculty of Forestry, 6) Residential of Lecturers (Perumahan dosen), 7) Cikabayan and 8) Gymnasium Area. The result of this research gets 707 butterfly consisting 55 species of butterfly. Butterflies which were found consists of five families, namely Papilionidae (8 species), Nymphalidae (29 species), Pieridae (8 species), Lycaenidae (4 species) and Hesperidae (6 species). Residential of Lecturers (Perumahan dosen) habitat has the highest species diversity value of 2.93 with an average temperature characteristics of 30.330C, relative humidity average of 75.89%, the value of Leaf Area Index (LAI) of 1.507 and has a diversity of larvae feed plants, butterflies feed plants and shelters. Generally, species diversity index values and the number of butterfly species has decreased compared to previous studies due to changes in land use on IPB Darmaga campus that disturbs the habitat of butterfly.
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Judul: Pengembangan Aplikasi Penandaan Digital pada SMS Menggunakan Algoritme MD5-RSA
Abstrak: Cellular phone is one of the most popular communication device. Unfortunately, this popularity also increases number of crime using cellular phone. SMS fraud is one kind of crime using cellular phone. Another method of sender verification is required to avoid this kind of crime. Digital signatures can be used to verify the sender. The sender is sending SMS with digital signature and the receiver will verify the signature. This application is developed using J2ME and MD5-RSA algorithm as the signature method. This application also uses Bouncy Castle lightweight cryptography API for J2ME as cryptography library. Key pair parameters can be generated in 15 seconds to 4 minutes depends on the cellular phone technology. The digital signature can be formed with an average time of 1.35 seconds to 1.97 seconds. Digital signature verification can be done with an average time of 3.73 seconds to 12.09 seconds. The digital signature is generated using private key parameters and verified using public key parameters. Only the correct key pair will provide a valid result. Time to send signed-SMS depends on the network capability. There is no difference compared to sending normal SMS.
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