Kata kunci: aktivitas kunjungan, efek penyerbukan, mentimun, produksi buah, serangga penyerbuk ABSTRACTCucumber is a monoceous plant and require pollinators for pollination process. Diversity and foraging activity of pollinators affect the effectiveness of pollination, which can improve the yields. The aim of this research were to study the diversity, foraging behavior, and effectiveness of insect pollinators on cucumber plants. Scan sampling was used as on of the methodology for observing pollinator diversity, while foraging behavior was observed using focal sampling. Pollination effectiveness were measured based on the number of fruit set of opened and caged plants. Fifteen species were found as pollinator of cucumber, i.

Lebah madu tidak bersengat tersebar dibeberapa pulau di Indonesia, diantaranya Jawa, Kalimantan dan Sulawesi dengan beberapa spesies endemik. Penelitian ini bertujuan untuk memberikan gambaran umum mengenai lebah madu tidak bersengat Kabupaten Luwu Utara, Provinsi Sulawesi Selatan. Penelitian ini bersifat eksploratif yang dilakukan di tiga desa di Kabupaten Luwu Utara, yaituDesa Sabbang, Desa Baebunta dan Desa Bone-bone. Hasil pengamatan menunjukan terdapat tiga jenis lebah tidak bersengat yang dominan, yaitu Trigona incisa, Trigona leviceps dan Trigona biroi.Terdapat perbedaan jenis pakan pada ketiga desa yang menyebabkan perbedaan warna sarang.

Gonda Mangrove Park is a mangrove area that has been opened as a tourist area since 2014. This land function shifting is expected to affect the components of the mangrove ecosystem in the future. Insect can be used as bioindicators of an environment. The absence of preliminary data on the diversity of visitor insects in this area can be a limiting factor in the management and supervision of Gonda Mangrove Park as a tourist area. This study aims to analyse the diversity of flower-visiting insect of mangrove in Gonda Mangrove Park. The method used to observed the diversity of flower-visiting insect was scan sampling at three observation stations. Environmental parameters measured during the observation including air temperature and humidity, light intensity, and noise level. The results showed that there were five species of insect visitors, i.e., Trigona sp. (n = 148), Odynerus sp. (n = 121), Dolichoderus sp. (n = 53), Leptocorisa sp. (n = 28), and Xylocopa confusa Pérez (n = 2). Gonda mangrove park has a 1.25 Shannon-Wiener diversity index (H’), 0.77 Shannon evenness index (E), and 0.32 Simpson dominance index (C). Noise from tourist negatively correlated to the abundance of flower-visiting insects of mangrove (r = -0.95; p = 0.01).

Sejak tahun 2015 universitas sulawesi barat sedang melaksanakan pembangunan kampus. Pembangunan ini melibatkan pembukaan hutan menjadi lahan terbuka. Ini akan menyebabkan penurunan keanekaragaman hewan dan tumbuhan di daerah tersebut. Hingga saat ini belum ada data dari penelitian sebelumnya mengenai keanekaragaman hewan dan tumbuhan di lokasi pembangunan kampus universitas sulawesi barat. Data ini menjadi penting untuk mengetahui perubahan keankeragaman di wilayah tersebut. Penelitian ini bertujuan untuk menghitung komposisi jenis tanaman obat di lokasi pembangunan kampus universitas sulawesi barat. Pengumpulan data dilakukan dengan metode angket. Hasil menunjukan bahwa terdapat tujuh jenis tanaman obat, yaitu Muntingia calabura, Ageratum conizoides, Solanum lycopersicum, Psidium guajava, Jatropha curcas, Sauropus androgynous, Phyllanthus niruri, Coleus scutellaroides dan Euphorbia hirta.

Indonesia's coastal region is known for its richness and diverse natural resources. However, the region is experiencing a transformation from mangrove ecosystems to the traditional pond cultures. This was happening in West Sulawesi that could damage the ecosystem in the long term, especially for the bird community. This study aims to inventory bird species in the bird community on the coast of Tandung Village, Tinambung District, Polewali Mandar Regency, West Sulawesi Province. In addition, we also study the bird community structure, find out the correlation among the bird communities, and the environmental condition during the inventory. In this study, we used a fixed-radius point count method to record birds. Field guide titled Burung-burung Pulau Paparan Sunda dan Wallacea di Kepulauan Indonesia was used to identify the species of observed birds. The results showed that of the 27 species recorded, there are 5 species with a high relative abundance, such as Egretta garzetta, Himantopus leucocephalus, Actitis hypoleucos, Ardeola speciosa, and Calidris ruficollis. Only H. leucocephalus is identified as a protected bird by the Indonesian government, while Calidris ruficollis is protected internationally as its conservational status (Near Threatened). The diversity index is moderate level, but it is decreasing day by day of observation, followed by the dominance index, evenness, and species richness. A high correlation between the two bird communities with two adjacent days of observation indicates similarity composition of community structure with different temporal scales and similar spatial scales. The map of environmental conditions shows changing weather in the period of observation sequentially from bright sky to cloudy and heavy rain and back to the normal bright sky at the last period of observation. The response of the bird community to the condition was by flying away when the weather is cloudy and rainy so that may decrease the diversity.