Abstract
Nishinoshima Island, located approximately 1,000 km south of mainland Japan and 130 km from the Ogasawara Islands, emerged as a new island due to volcanic activity in 1973. On this isolated island, grasses such as Eleusine indica and Portulaca oleracea have been observed growing, though their routes of invasion remain unknown. Numerous seabirds have been spotted inhabiting and breeding around Nishinoshima Island, potentially contributing to the spread of these read more

Abstract
Cajuput stand development in Bojonegoro Forest Management Unit is currently the most important concern because it provides a meaningful contribution to maintain the financial stability of the company. This study aims to determine an optimum planting design for generating high cajuput productivity using an analytical hierarchy process. Eight criteria were used to facilitate the evaluation process, including site suitability, plant diversity, planting density, read more

Abstract
In Indonesia, social forestry is promoted as a rural development strategy intended to improve community welfare while supporting sustainable forest management. By granting long-term and inheritable rights to manage state forests, the program is expected to provide a solid foundation for sustainable livelihoods across generations. Yet, how current social forestry participants and prospective successors perceive the future livelihood prospects offered by the read more

Abstract
In many countries, the rights of Indigenous peoples and local communities over forest resources are largely unrecognized and increasingly threatened by development projects and conservation policies. When Indigenous communities assert claims grounded in oral traditions and historical narratives, they often encounter formal legal systems privileging written documentation. Although Indonesia has introduced significant legal reforms, including the Constitutional read more

Abstract
Biomass residue after the harvesting process naturally contains amounts of nutrients that can improve soil quality and increase stand productivity. However, the benefits of biomass residue in supporting forest management are rarely documented. This study investigated the effects of added residual biomass on the performance of an Acacia auriculiformis stand. Three levels of treatment were examined in a randomized complete block design, including fertilization read more

Abstract
Macrocephalon maleo, commonly known as the maleo, is a critically endangered bird endemic to Sulawesi, recognized for its distinctive nesting strategy of burying eggs in geothermally or solar-heated soil. This study examined nesting habitat characteristics and environmental factors influencing its presence in Lore Lindu National Park (LLNP), Central Sulawesi, Indonesia. From June 2024 to February 2025, field surveys and camera trap monitoring were conducted read more

Abstract
Mangrove ecosystems are dynamic coastal environments where phytoplankton communities respond sensitively to environmental variability. This study examined phytoplankton community structure and its relationship with water physicochemical characteristics in mangrove areas with tourism (MWT) and without tourism (MW) in Kuala Langsa, Aceh, Indonesia. Field sampling was conducted during a single survey period across 40 plots (20 MWT and 20 MW). Phytoplankton read more

Abstract
Santalum album Linn. (sandalwood) is a commercially important species due to the essential oils derived from its heartwood. This species has been currently threatened by overharvesting and habitat fragmentation. Therefore, this study aims to assess genetic diversity and population structure of seven Indonesian sandalwood populations using eight nuclear simple sequence repeat (nSSR) markers. The samples comprised 202 individuals from one ex-situ conservation read more

Abstract
While the expansion of monoculture oil palm plantations has contributed to national and local economic growth, large-scale development within forested areas has led to deforestation in Indonesia. This has raised concerns among key market countries, particularly in the European Union, potentially leading to trade restrictions on Indonesia’s oil palm products linked to deforestation. In response, the Indonesian government has introduced several regulations read more

Abstract
Urban green areas offer a range of ecosystem services and recreational attractions, including the comfortable microclimate. However, the influence of microclimate conditions on visitor preferences to visit urban green space areas is still necessary to be investigated. This study aims to evaluate the microclimate conditions and their influence on visitor preferences at Wisdom Park, Gadjah Mada University. Microclimate parameters, such as temperature, humidity, read more