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DIVERSITY OF FERN SPECIES (PTERIDOPHYTA) IN KEBUN RAYA BANUA BANJARBARU, SOUTH KALIMANTAN PROVINCE Abdi Gusti, Muhammad; Prasetyo, Opik; Alifia Puspita Sari
Indonesian Biodiversity Journal Vol. 6 No. 3 (2025): December 2025
Publisher : Universitas Negeri Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53682/38yngc13

Ferns (Pteridophyta) are a group of Cryptogamae plants that play an important role in maintaining ecosystem balance and have the potential to be a source of biodiversity learning. This study aims to determine the diversity and evenness of fern species in the Kebun Raya Banua, Banjarbaru City, South Kalimantan Province, and to analyze the environmental factors that influence their existence. The research was conducted using an exploratory survey method with purposive sampling techniques at three observation stations. Diversity analysis was performed using the Shannon–Wiener Index (H’) and the evenness index (E). The results showed that there were 8 species of ferns belonging to 5 families, namely Asplenium nidus, Gleichenia linearis, Nephrolepis biserrata, Lygodium circinnatum, Davallia denticulata, Drynaria quercifolia, Adiantum raddianum, and Microsorum scolopendria, with a total of 62 individuals. The diversity index value H' = 1.894 is classified as moderate, while the evenness index value E = 0.56 indicates that species distribution is also moderate. These values indicate that the environmental conditions at Kebun Raya Banua are still relatively stable and support the growth of various types of ferns, with temperature, humidity, soil pH, and light intensity as important factors that influence diversity variation between observation stations.

LICHEN DIVERSITY IN KEBUN RAYA BANUA, BANJARBARU CITY, SOUTH KALIMANTAN PROVINCE Puspita Sari, Alifia; Prasetyo, Opik; Muhammad Abdi Gusti
Indonesian Biodiversity Journal Vol. 6 No. 3 (2025): December 2025
Publisher : Universitas Negeri Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53682/wzj8fw91

Lichen are pioneer organisms resulting from symbiosis between mycobionts (fungi) and photobionts (algae or cyanobacteria) that play an important role in maintaining ecosystem balance. This study aims to determine the diversity of lichen species in the Kebun Raya Banua, Banjarbaru City, South Kalimantan Province and to analyze the environmental factors that influence their existence. The study was conducted using an exploratory survey method with a purposive sampling technique at three observation stations, and diversity analysis was calculated using the Shannon–Wiener Index (H'). The results showed that 7 lichen species belonging to 6 families were found, namely Cryptothecia striata, Graphis scripta, Diorygma sticticum, Dirinaria applanata, Phlyctis argena, Lepraria sp., and Bacidia sp., with a total of 110 colonies and a diversity index value of Ĥ = 1.8233 which is included in the moderate diversity category. These values indicate that environmental conditions in the Kebun Raya Banua are still quite stable and support the growth of various types of lichen, with temperature, humidity, soil pH, and light intensity as important factors influencing variations in diversity between observation stations.

DIVERSITY OF FERN SPECIES (PTERIDOPHYTA) IN KEBUN RAYA BANUA BANJARBARU, SOUTH KALIMANTAN PROVINCE Abdi Gusti, Muhammad; Prasetyo, Opik; Alifia Puspita Sari
Indonesian Biodiversity Journal Vol. 6 No. 3 (2025): December 2025
Publisher : Universitas Negeri Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53682/38yngc13

Ferns (Pteridophyta) are a group of Cryptogamae plants that play an important role in maintaining ecosystem balance and have the potential to be a source of biodiversity learning. This study aims to determine the diversity and evenness of fern species in the Kebun Raya Banua, Banjarbaru City, South Kalimantan Province, and to analyze the environmental factors that influence their existence. The research was conducted using an exploratory survey method with purposive sampling techniques at three observation stations. Diversity analysis was performed using the Shannon–Wiener Index (H’) and the evenness index (E). The results showed that there were 8 species of ferns belonging to 5 families, namely Asplenium nidus, Gleichenia linearis, Nephrolepis biserrata, Lygodium circinnatum, Davallia denticulata, Drynaria quercifolia, Adiantum raddianum, and Microsorum scolopendria, with a total of 62 individuals. The diversity index value H' = 1.894 is classified as moderate, while the evenness index value E = 0.56 indicates that species distribution is also moderate. These values indicate that the environmental conditions at Kebun Raya Banua are still relatively stable and support the growth of various types of ferns, with temperature, humidity, soil pH, and light intensity as important factors that influence diversity variation between observation stations.

Analisis kualitas butir soal ujian akhir semester mata pelajaran biologi SMA menggunakan Rasch Model Prasetyo, Opik
Bio-Pedagogi: Jurnal Pembelajaran Biologi Vol 13, No 1 (2024): Bio-Pedagogi: Jurnal Pembelajaran Biologi
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/bio-pedagogi.v13i1.79390

ENThis research aims to determine the quality of Biology final exam questions in senior high school using the Rasch model. The final exam questions consist of 30 multiple choices questions on ecology and cells. The answers are collected from 50 students in grade XI in SMA Academic Year 2021/2022. Data analyse technique in this research is the Item responses test (IRT). The result shows that from a total of 30 questions, 17 of them are in the valid category, while the other 13 questions are invalid. The value of Cronbach’s alpha is 0,69 < 0,7; shows that some of the invalid questions are not reliable and require improvement, so that the consistency of measurement results using these items become more reliable. The analysis result also shows that the majority of students have conformity with the developed Rasch model, except for student numbers 04L, 18P, 07P, 44P, 39L, 43P and 25P. IDPenelitian ini bertujuan untuk mengetahui kualitas butir soal ujian akhir semester mata pelajaran Biologi SMA menggunakan RASCH model. Soal UAS yang dianalisis berjumlah 30 soal pilihan ganda pada materi ekologi dan sel. Responden merupakan 50 siswa kelas XI SMA Tahun Akademik 2021/2022. Teknik analisis data dalam penelitian ini adalah Item responses test (IRT). Hasil analisis menunjukkan bahwa dari 30 butir soal, sejumlah 17 item termasuk kategori valid, sedangkan 13 item lainnya invalid. Nilai Alpha Cronbach berdasarkan hasil analisis adalah 0,69 < 0,7; menunjukkan bahwa beberapa soal yang invalid tersebut tidak reliabel dan memerlukan perbaikan, sehingga keajegan atau konsistensi hasil pengukuran menggunakan item soal menjadi lebih dapat dipercaya. Hasil analisis juga menunjukkan bahwa mayoritas siswa memiliki kesesuaian dengan RASCH model yang dikembangkan, kecuali siswa nomor 04L, 18P, 07P, 44P, 39L, 43P dan 25P.

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