Claim Missing Document
Check
Articles

Found 3 Documents
Search
Journal : Jurnal Biologi Universitas Andalas

Species Diversity of Earthworm in the Field of Biology Gadjah Mada University Sita Ratnawati; Niken Satuti Nur Handayani; Trijoko Trijoko
Jurnal Biologi Universitas Andalas Vol 7, No 2 (2019)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.7.2.126-135.2019

Abstract

The Earthworms are one of the invertebrate species which hasn’t backbone. The Earthworm has lived in a few habitats, for example in the humid of forest ground with the high density of cover canopy. Field of Biology UGM is an artificial forest and has a high density of cover canopy  and this condition can supported the living habitat of earthworms. The aim of this research were investigated species diversity of earthworm in the field of Biology UGM.. Sampling method was carried out with purposive random sampling method. Result obtained that the earthworms in the field Biology of UGM consist of three species. The Three species were Pheretima hawayana, Pheretima sp., and Eudrilus eugeniae. Data analysis was used UPGMA method by 3.1 MVSP Program and obtained that generally, similarity percentage of P. hawayana, Pheretima sp., dan E. eugeniae interspecies more than 55 %. Whereas similarity percentage of P. hawayana and  Pheretima sp. more than 85 %.
Physical Growth and Sexual Maturation of Subsistence Population in Padaido Island Papua Insos Batseba Rumayauw; Sita Ratnawati; Elda Irma Jeanne Joice Kawulur
Jurnal Biologi Universitas Andalas Vol 12, No 1 (2024)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.12.1.58-65.2024

Abstract

Physical growth and sexual maturity are two important events in the childhood phase. Measurement and assessment of development of body size is the best ways to understand the adaptive respond when face enviromental challenges of the traditional population. Several populations show that girls and boys tend to show varying ages and rates of growth and sexual maturity. The aim of this study was to study the growth patterns of height, weight and age at menarche in children of the Biak tribe in the Padaido Islands Region, Biak Regency, Papua Province. Cross-sectional research was designed to the children consisting of 130 boys and 153 girls. In order to determine the age at menarche using the status quo method.  The growth curve was analyzed using the Generalized Linear Model for Location, Shape and Scale (GAMLSS) model and the age of menarche was analyzed using the Probit-GLM analysis. Although geographic condition of Padaido island was isolated, the infrastructure and sosioeconomic conditions were indequate, however the age at menarche of Padaido girls (13,2 years) was included in the same category as the age at menarche nationally. The physical growth curve (height and weight) for girls exceeds that of boys before and during menarche, then decreases after menarche. This pattern is in line with previous research that girls have a larger stature at puberty because they accumulate body fat in preparation for menarche and the development of secondary sex characteristics. The environmental challenges have implications for the limited availability of energy to regulate maximum skeletal growth achieved at a young age, while the development of fat mass is achieved more slowly after sexual maturity. This describes a shift that deviates from the normal growth and development of the body..
Physical Growth and Sexual Maturation of Subsistence Population in Padaido Island Papua Rumayauw, Insos Batseba; Ratnawati, Sita; Kawulur, Elda Irma Jeanne Joice
Jurnal Biologi Universitas Andalas Vol 12 No 1 (2024)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.12.1.58-65.2024

Abstract

Physical growth and sexual maturity are two important events in the childhood phase. Measurement and assessment of development of body size is the best ways to understand the adaptive respond when face enviromental challenges of the traditional population. Several populations show that girls and boys tend to show varying ages and rates of growth and sexual maturity. The aim of this study was to study the growth patterns of height, weight and age at menarche in children of the Biak tribe in the Padaido Islands Region, Biak Regency, Papua Province. Cross-sectional research was designed to the children consisting of 130 boys and 153 girls. In order to determine the age at menarche using the status quo method.  The growth curve was analyzed using the Generalized Linear Model for Location, Shape and Scale (GAMLSS) model and the age of menarche was analyzed using the Probit-GLM analysis. Although geographic condition of Padaido island was isolated, the infrastructure and sosioeconomic conditions were indequate, however the age at menarche of Padaido girls (13,2 years) was included in the same category as the age at menarche nationally. The physical growth curve (height and weight) for girls exceeds that of boys before and during menarche, then decreases after menarche. This pattern is in line with previous research that girls have a larger stature at puberty because they accumulate body fat in preparation for menarche and the development of secondary sex characteristics. The environmental challenges have implications for the limited availability of energy to regulate maximum skeletal growth achieved at a young age, while the development of fat mass is achieved more slowly after sexual maturity. This describes a shift that deviates from the normal growth and development of the body..