The purpose of this research was to determine the effectiveness of the enrichment book of Conservation Biology Lecture based on normalized gain assessment. The assessment of a lecture can be carried out in the learning process for one. Normalized gain on a class average can be used to make learning assessments. In this assessment, it is expected that the effectiveness of using books as learning media can be achieved by using the normalized gain values. The learning media in this research were printed enrichment books on molecular biology lecture. In this research, it was found that the average score of normalized gain (g) was 0.37 ± 0.03 (moderate). Thus, the results of the assessment show that the book media as a medium for learning material enrichment in the molecular biology lecture is quite effective.
Studies about reptiles in of part of Java have been poorly known. Meanwhile, most of studies about diversity of reptiles which have been published were incorporated with amphibians, and nearly all just concern in unraveling the diversity of amphibians. In Bodogol, Gede-Pangrango National Park, survey about reptiles diversity have been done frequently, but just little research that have been published and most of all are short term research study. Hence, a research that concern in studying diversity of reptiles become valuable to carry out. Here, we studied the diversity of reptiles in Bodogol during November 2011 to March 2012. Reptiles' species were collected by searching in available trail, but Tangkil, Cipanyairan I, and Cipanyairan II. Total of twenty three species of reptiles were found, encompassing six families (Colubridae, Elapidae, Viperidae, Scincidae, Agamidae, and Gekkonidae). Based on this result, we assume that Bodogol is good habitat for reptiles because it serves high diversity of reptiles.
Abstract The study aims were to determine the community structure of Uca sp.and its environmental factor at the segara anakan north Bedul Alas purwo national park. Research conducted when the lowest tide began on april 24th,2017. At research station, 30 sampling points was determined by purposive sampling method. Samples ware taken by making 1x1 square, space 5m between each square and observed with the space 2m between square and observer and after ten minutes then recorded all the species belonging to each plot. Environment parameters measured to determine the diference of environmental factor to structure community of Uca crabs. Samples of crab preserved with formaldehida 4% and collected in tha jar. Eight species were found in segara anakan north bedul is Uca rosea, Uca perplexa, Uca capricornis, Uca bellator, Uca tetragonon, Uca crassipes, Uca rapax, Uca lactea. Abstrak Penelitian ini bertujuan untuk mengetahui struktur komunitas dari Uca sp. di kawasan hutan mangrove serta faktor lingkungan yang mempengaruhinya. Penelitian dilakukan pada saat air surut terendah. Penelitian ini dilakukan pada 24 April 2017. Metode yang dilakukan ialah dengan purposive sampling dan dengan menggunakan belt transek. Penelitian dilakukan dengan membuat plot berukuran 2 m x 2 m sebanyak 30 plot dan dengan jarak antar plot ialah 5 m. Penelitian dilakukan dengan pengamatan dari jarak 2 m dan setelah 10 menit kemudian di catat semua spesies yang termasuk ke dalam tiap plot. Dilakukan pengukuran parameter lingkungan untuk mengetahui perbedaan faktor lingkungan terhadap struktur komunitas kepiting Uca. Spesies kepiting yang telah tercatat diambil individunya untuk dijadikan sampel dan dilakukan identifikasi kemudian diawetkan di dalam botol selai dengan menggunakan formalin 4%. Sebanyak 8 jenis kepiting Uca yang ditemukan di hutan mangrove kawasan Bedul, yaitu Uca rosea, Uca perplexa, Uca capricornis, Uca bellator, Uca tetragonon, Uca crassipes, Uca rapax, Uca lactea.
ABSTRACT Urban area is dominated by land that functioned of the interest of economy and settlement, but only a few land allocated for wildlife. The butterflies was one of the wildlife that could be found in urban areas.The remaining habitat that can be used by butterflies assumed confined to the urban green space. Based on its life cycle, the butterflies having an initial phase (egg to larvae) is a phase which is generally require specific habitat. This research aims to determine the relationship between landscape characteristic and oviposition site preferences of butterfly. This research was conducted on April to June, 2014 at fifteen urban green spaces in East Jakarta by using descriptive survey technique. Landscape characteristics measured include area, perimeter, lawn area, closed vegetation area, open vegetation area, non vegetation area. Landscape characteristic not only measured from urban green space, but also measured from the area around urban green space within the scope of 100 meters buffer. Results show that there is a relationship between landscape characteristic and oviposition site preferences. Significant positive correlation between the abundance and area correlation coefficients rs (0,546), open vegetation area rs (0,758) and non vegetation buffer area rs (0,688). There was no significant correlation between the abundance with perimeter area, lawn area, closed vegetation area, non vegetation area, lawn buffer, open vegetation buffer and closed vegetation buffer. Keywords: caterpillar,landscape characteristic, oviposition site, preferences, urban green space
Abstract Frigatebird is one of seabird species found in Pulau Rambut Wildlife Reserve (SMPR). The bird activities include roost in fish pole, flying, foraging in the ocean and also roosting in SMPR at night. The aim of this research was to know roosting site used by frigatebird while at SMPR. This research was conducted in SMPR, Jakarta on August and September 2010 by descriptive method and survey techniques. Data was collected directly on the object of research. Frigatebird population was calculated directly by counting individuals one by one as they flew low in the air over SMPR. Frigatebird roosting site was also researched directly by observing frigatebird when going to roost. Furthermore, vegetation analysis was also conducted on trees in roosting site. Based on our obsevations, the population of frigatebird obtained in SMPR ranged between 87-193 birds. Frigatebird utilize Sterculia foetida tree to be used as a place to roost. This roosting site located in mixed secondary forest to the west and south SMPR close to mangrove forest. Average of height and diameter of S. foetida tree used to roost is 23.47 m and 42.26 cm. There were commonly 3 species of tree of frigatebird roosting site namely Ficus sp. (INP 16.91%), Allophylus cobbe (INP 16.78%) dan Diospyros maritima (INP 14.23). Key words: frigatebird, Pulau Rambut Wildlife Reserve (SMPR), roosting site
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