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IDENTIFICATION OF ANTS (Formicidae) IN THE MANGROVE FOREST AREA OF TATENGESAN VILLAGE, SOUTHEAST MINAHASA Delvy Regina Leunufna; Debby Jacqueline Jochebed Rayer; Christny Ferdina Evie Rompas; Helen Joan Lawalata; Livana Dethris Rawung
Indonesian Biodiversity Journal Vol. 4 No. 2 (2023): August 2023
Publisher : Universitas Negeri Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53682/ibj.v4i2.6275

Ants are a group of social insects that belong to the order Hymenoptera and the Family Formicidae. This study aims to determine the type of ants (Formicidae) in the Mangrove Area of Tatengesan Village, Southeast Minahasa. This research occurred in Tatengesan Village, Posumaen District, Southeast Minahasa Regency, North Sulawesi. The research method uses a purposive sampling method with the placement of the paths determined based on considerations taking into account the physical and biological conditions that affect the presence of ants in the field. Observation lines were made in as many as three transects, each with four observation plots. Data was collected using adhesive paper traps (Fly Sheet) and direct capture method (hand collecting) and analyzed using the Shannon-Weiner diversity index, species richness index, and species evenness index. Placement of self-adhesive paper on each transect, including lower tree stratum, highest tide limit, middle tree stratum, and upper tree stratum. Based on the results of the research on the observation transect, there were five genera, namely Anoplolepis with 25 individual ants, Camponotus with 31 individual ants, Crematogaster with 98 individual ants, Oecophylla 2168 ants, and Tetraponera 6 individual ants from 6 species of ants consisting of Anoplolepis gracilipes, Camponotus atriceps, Camponotus sp., Crematogaster scutellaris, Oecophylla smaragdina, and Tetraponera nigra. The highest number of genera obtained was Oecophylla, the highest number of species was Oecophylla smaragdina, and the number of individuals caught was 2168.

ECHINODERM COMMUNITY STRUCTURE IN TAMBA BEACH, NORTH MINAHASA REGENCY, NORTH SULAWESI PROVINCE Jelita Pricilya Tompolumiu; Verawati Ida Yani Roring; Nova Laurin Isye Mourein Ogi; Nonny Manampiring; Helen Joan Lawalata
Indonesian Biodiversity Journal Vol. 4 No. 2 (2023): August 2023
Publisher : Universitas Negeri Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53682/ibj.v4i2.6391

Tamba Beach has several ecosystems, namely seagrass beds, sandy and rocky. Ecologically, seagrass beds are home to marine life, including Echinodermata. Echinoderms play an important role as an integral part of the food chain, eating organic waste. The purpose of this study was to analyze the community structure of Echinoderms at Station I (Seagrass Zone), Station II (Sandy Zone) and Station III (Coral Zone). Two methods are used in this study. The first is a qualitative description method by directly observing and quantitatively calculating the diversity index, uniformity index, dominance and abundance index formulas. The echinoderms found consisted of 4 classes, namely Holothuidea, Ophiuroidea, Echinoidea and class Asteroidea. The echinoderms found at the study site used a diversity index classified as stable. The dominance index is low because there are no dominant individuals, and the uniformity index is low. From the results obtained from the abundance in Tamba Beach, the highest value was in the Diadema setosum species with 113 individuals. Diadema setosum has the highest quantity at the three existing stations. This species can adapt to environmental changes.

INVENTARISATION OF ORCHID TYPES (Orchidaceae) IN WEST TOMOHON AREA Miracle Abbighael Varencia Welan; Verawati Ida Yani Roring; Helen Joan Lawalata
Indonesian Biodiversity Journal Vol. 4 No. 2 (2023): August 2023
Publisher : Universitas Negeri Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53682/ibj.v4i2.6585

This study aims to inventory orchid species in the West Tomohon area using the accidental sampling method of exploration in a predetermined place. Orchids are a type of flowering plant that comes from the Orchidaceae family. Each type of orchid has its own characteristics. Tomohon City has abundant natural resources, including ornamental plants such as orchids. Data on orchid diversity in West Tomohon Sub-district has never been reported. Orchid inventory is an activity that records the diversity of orchid species in an area. This research is descriptive-qualitative research. The results of this study have yielded 10 species of orchids belonging to nine genera in one family. The orchid species found in the West Tomohon area consist of Arachnis sp., Arundina graminifolia, Cattleya sp., Dendrobium biggibum, Dendrobium moschatum, Epidendrum secundum, Oncidium flexuosum, Phaius tankervilleae, Phalaenopsis amabilis, and Vanda arcuata. The most common orchid found in this area is the moon orchid, Phalaenopsis amabilis.

IDENTIFICATION OF ANTS (Formicidae) IN THE MANGROVE FOREST AREA OF TATENGESAN VILLAGE, SOUTHEAST MINAHASA Delvy Regina Leunufna; Debby Jacqueline Jochebed Rayer; Christny Ferdina Evie Rompas; Helen Joan Lawalata; Livana Dethris Rawung
Indonesian Biodiversity Journal Vol. 4 No. 2 (2023): August 2023
Publisher : Universitas Negeri Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53682/ibj.v4i2.6275

Ants are a group of social insects that belong to the order Hymenoptera and the Family Formicidae. This study aims to determine the type of ants (Formicidae) in the Mangrove Area of Tatengesan Village, Southeast Minahasa. This research occurred in Tatengesan Village, Posumaen District, Southeast Minahasa Regency, North Sulawesi. The research method uses a purposive sampling method with the placement of the paths determined based on considerations taking into account the physical and biological conditions that affect the presence of ants in the field. Observation lines were made in as many as three transects, each with four observation plots. Data was collected using adhesive paper traps (Fly Sheet) and direct capture method (hand collecting) and analyzed using the Shannon-Weiner diversity index, species richness index, and species evenness index. Placement of self-adhesive paper on each transect, including lower tree stratum, highest tide limit, middle tree stratum, and upper tree stratum. Based on the results of the research on the observation transect, there were five genera, namely Anoplolepis with 25 individual ants, Camponotus with 31 individual ants, Crematogaster with 98 individual ants, Oecophylla 2168 ants, and Tetraponera 6 individual ants from 6 species of ants consisting of Anoplolepis gracilipes, Camponotus atriceps, Camponotus sp., Crematogaster scutellaris, Oecophylla smaragdina, and Tetraponera nigra. The highest number of genera obtained was Oecophylla, the highest number of species was Oecophylla smaragdina, and the number of individuals caught was 2168.

INVENTARISATION OF ORCHID TYPES (Orchidaceae) IN WEST TOMOHON AREA Miracle Abbighael Varencia Welan; Verawati Ida Yani Roring; Helen Joan Lawalata
Indonesian Biodiversity Journal Vol. 4 No. 2 (2023): August 2023
Publisher : Universitas Negeri Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53682/ibj.v4i2.6585

This study aims to inventory orchid species in the West Tomohon area using the accidental sampling method of exploration in a predetermined place. Orchids are a type of flowering plant that comes from the Orchidaceae family. Each type of orchid has its own characteristics. Tomohon City has abundant natural resources, including ornamental plants such as orchids. Data on orchid diversity in West Tomohon Sub-district has never been reported. Orchid inventory is an activity that records the diversity of orchid species in an area. This research is descriptive-qualitative research. The results of this study have yielded 10 species of orchids belonging to nine genera in one family. The orchid species found in the West Tomohon area consist of Arachnis sp., Arundina graminifolia, Cattleya sp., Dendrobium biggibum, Dendrobium moschatum, Epidendrum secundum, Oncidium flexuosum, Phaius tankervilleae, Phalaenopsis amabilis, and Vanda arcuata. The most common orchid found in this area is the moon orchid, Phalaenopsis amabilis.

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