Potential learning sources for biology on the topic of biodiversity for high school student in Paliyan Wildlife Sanctuary, Gunung Kidul, Yogyakarta

Learning sources are all objects and their phenomena that can be used to gain experience in solving particular problems. In general, not many learning sources for biology in high school from the surrounding environment have been utilized for the learning process, especially on the topic of biodiversity. One area with potential as a learning source is the Paliyan Wildlife Sanctuary in Gunung Kidul. This study aims to identify the types of tree stratum vegetation that have the greatest role based on their importance value index, diversity index, links between measurable abiotic environmental factors and stand grouping patterns and potential learning sources For grade X high school biology on the topic of biodiversity. The research design employed was explorative and descriptive. The sample was drawn using the plotless point-centered quarter method. The parameters gauged comprise density, dominance, frequency, importance value index (IV), diversity index, and relationships between measurable abiotic conditions (soil temperature, air temperature, humidity, light intensity) and stand patterns using cluster analysis. The potential of learning sources for biology was studied descriptively. The results showed 15 species of tree stratum vegetation in Paliyan Wildlife Sanctuary. The species with the highest IV was Tectona grandis (159.56%). The average diversity index (H') ranged from 0.28 to 0.73. The abiotic environmental conditions related to standing patterns were air temperature, soil temperature, air humidity, and soil pH. As shown by the descriptive study method, the research results can be learning sources for biology in grade X of high school on the topic of biodiversit