Hellen Kurniati, Hellen
Bidang Zoologi, Puslit Biologi-LIPI Jalan Raya Cibinong Km 46, Cibinong 16911, Jawa Barat

Published : 43 Documents Claim Missing Document
Claim Missing Document
Check
Articles

VOCALIZATIONS OF MICROHYLA ACHATINA TSCHUDI, 1838 (ANURA: MICROHYLIDAE) FROM THE FOOT HILLS OF MOUNT SALAK, WEST JAVA Kurniati, Hellen
JURNAL BIOLOGI INDONESIA Vol 9, No 2 (2013): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jbi.v9i2.175

Abstract

Vocalizations of Microhyla achatina have never been described before. The advertisement calls of six individual malesof M. achatina which originated from the foot hills of Mount Salak, West Java were recorded in September 2011 atair temperatures of 21.0°C-23.4°C. Call components were obtained from 95 calls, consisting of 855 pulses, whichwere then analyzed to obtain the characteristics of sound waves by using software of Adobe Audition 3.0 andSAP2011. Sound waves of M. achatina mainly consists of impulses whose sound spectrum ranges from 1327.5-2789.1 Hz, while the band width of the spectrum is 1461.6 Hz. Results of the analysis showed that the frequency ofthe three pulse-forming elements (dominant frequency, maximum frequency and minimum frequency) was markedlymodulated; frequency modulation was clearly visible in the minimum frequency, which was modulared by 1500 to2700 Hz modulation. The modulation of the dominant frequency and the maximum frequency was not too broad,i.e. between 3000-3500 Hz. Results of linear regression analysis of the dominant frequency versus minimum frequencyand dominant frequency versus maximum frequency showed a strong correlation between the dominant frequencyversus minimum frequency, but a weak correlation between the dominant frequency versus the maximumfrequency.Keywords: vocalization, Microhyla achatina, West Java.
PENGARUH DINAMIKA FAKTOR LINGKUNGAN TERHADAP SEBARAN HORISONTAL DAN VERTIKAL KATAK Kurniati, Hellen
JURNAL BIOLOGI INDONESIA Vol 7, No 2 (2011): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jbi.v7i2.3119

Abstract

ABSTRACTThe Effect of Environmental Factors on the Horizontal and Vertical Movement of Frogs. Fourenvironmental factors (moon phase, air temperature, water temperature and air humidity) weremeasured to determine the impact of environmental factors on the dynamics of horizontal andvertical spread of the frog Rana erythraea, R. nicobariensis and Occidozyga lima in a wetlandarea of Ecology Park, LIPI Campus Cibinong. Observation was done follows transect line(100 meters long) and set along the edge of the lake where the habitat was more diversecompared to the other sites. Observations were carried out from July to November 2009. Theposition of individual frogs (distance from water?s edge and height from the ground or water)was recorded and then grouped into intervals of 100 cm distance and height each. Correlationanalysis between the number of individuals per unit distance or height with environmentalfactors was measured using the statistical program SPSS version 16.0. The results of thisstudy proved that the air and water temperature as well as air humidity have significant effecton horizontal and vertical ecological distribution of R. erythraea and R. nicobariensis; whereasfour environmental factors had no impact on horizontal distribution of O. lima. The movementof R. erythraea was strongly positively correlated with air temperature, but strongly negativelycorrelated with air humidity; however the abundance of R. nicobariensis was strongly negativelycorrelated with air temperature and strongly positively correlated with air humidity. Mixedvegetation of species Leerxia hexandra and Eleocharis dulcis at a distance between 0-100 cmfrom the edge of the water and height between 0-100 cm from the ground constituted thepreferred microhabitat of frog species R. erythraea and R. nicobariensis.Key words: Environmental factors, Rana erythraea, Rana nicobariensis, Occidoziga lima,Ecology Park, wetland.
KARAKTERISTIK SUARA RHACOPHORUS EDENTULUS MUELLER, 1894 ASAL PEGUNUNGAN MEKONGGA, SULAWESI TENGGARA (ANURA: RHACOPHORIDAE) Kurniati, Hellen
JURNAL BIOLOGI INDONESIA Vol 11, No 1 (2015): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jbi.v11i1.2152

Abstract

Vocalizations Rhacophorus edentulus Mueller, 1894 have never been described before. The advertisement calls of four individual males of R. edentulus which originated from Mekongga Mountains, Southeast Sulawesi were recorded in December 7-8, 2010 at air temperatures of 20.5°C.  Location of sound recording for the four individual males were performed at two different places, call of one individual was recorded when it was calling in a plastic bag in the base camp, while calls of the other three individuals were recorded in their habitat in the forest. Adobe Audition 3.0 software was used to visualize sound waves.  Calls of R. edentulus have two types, i.e. pulses and pure tone.  Sound wave of pulses has two types, namely pulse type 1 and pulse type 2; whereas sound wave of pure tone also has two types, namely pure tone type 1 and pure tone type 2.  Based on the dominant frequency and the fundamental frequency of pure tones waves and pulse waves, the natural noise in the forest habitats affects the dynamics of the frequency of calls that were released by males R. edentulus; frequency sound with low noise is more dynamic than the frequency of the sound with high noise level. Key words: vocalization, Rhacophorus edentulus, Mekongga Mountains, Southeast Sulawesi. 
VARIASI SUARA PANGGILAN KODOK HYLARANA NICOBARIENSIS (STOLICZKA, 1870) DARI LIMA POPULASI BERBEDA DI INDONESIA (ANURA: RANIDAE) Kurniati, Hellen; Hamidy, Amir
JURNAL BIOLOGI INDONESIA Vol 12, No 2 (2016): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jbi.v12i2.2877

Abstract

Hylarana nicobariensis (Stoliczka, 1870) is a very common frog, which has a wide distribution, covering the southern part of Thailand, Peninsular Malaysia, Sumatra, Borneo, Java, Bali and Palawan in the Philippines. The presence of this frog is very easy to be recognized by listening its shrill call that is sounded loudly all day. Detailed descriptions of H. nicobariensis?s calls from Ulu Gombak in Peninsular Malaysia and Danum Valley in Sarawak have been published by Jehle and Arak (1998), which are some call characters of the frog from the two locations are significantly different. To determine the call characters that can distinguish among populations of this frog, advertisement calls of five different populations (Batukaru, Curup, Limau Manis, Curug Nangka and Lake Ecology Park) were analyzed. The characters of the call waves on the five populations are different in the structure of sub-pulses, dominant frequency and lower frequency. Among the five populations, the population from Lake Ecology Park is the most different in the terms of the dominant frequency (3996.95 ± 124.74 Hz) and lower frequency (1692.51 ± 80.77 Hz), of this population both these characters occupy the highest level compared to four other populations; however individuals from Curup occupy the lowest level on dominant frequency (2919.67 ± 67.76 Hz) and lower frequency (832.96 ± 32.42 Hz).Key words: Ranidae, Hylarana nicobariensis, bioacoustics
ESTIMASI POPULASI TOKEK RUMAH, GEKKO GECKO (LINNAEUS, 1758) DI KAKI GUNUNG KARANG, KABUPATEN PANDEGLANG, PROVINSI BANTEN, JAWA BAGIAN BARAT Kurniati, Hellen
JURNAL BIOLOGI INDONESIA Vol 15, No 2 (2019): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jbi.v15i2.3808

Abstract

ABSTRACTOn CoP 18 which will be held in Sri Lanka in 2019, house gecko was proposed to be uplisted up listed from the non-appendix status of CITES to be included the list of CITES appendix II on the reasons that the hunting of the reptile was very large and uncontrolled. In order to anticipate the up listing of house gecko status, LIPI as a Scientific Authority in Indonesia recommended quota for house gecko in 2019 to be 1,800,000 individuals. To see that such a quota does not have a negative impact on the population of house gecko in the wild, a survey was conducted by using the close questioner system method by visiting housing in a village; where in this survey the villages were located at the foot hill of Gunung Karang, Pandeglang Regency, Banten Province. The survey was conducted on March 18 to April 1, 2019. The total number of villages visited was 8 villages which were divided into three sub-districts. The total area surveyed in 8 villages was around 94.5 hectares.  The total number of houses visited was 740 houses; the total number of houses that contained the house gecko was 211 houses. The total number of house gecko by interviewed was 260 individuals, while the total number of house geckos by observed was 88 individuals. The survey results obtained an average population density of house gecko by interviewing eight villages was 3.66 individuals/hectares, while the observation results were 1.15 individuals/hectares. The approach to the average population density of houses gecko by interviewing with the results of 3.66 individuals/hectares was assumed to be the density that was close to the logical number.  Extrapolating the density of house geckos in Pandeglang Regency which covers an area of 229,071 hectares excluded paddy field area was considered to be inhabited by house gecko, so the extrapolation of the number of house geckos in Pandeglang Regency is around 838,399.86 individuals.  Keywords: Gekko gecko, house gecko, Java, population   
KERAGAMAN GENETIK AMFIBIA KODOK (RANA NICOBARIENSIS) DI ECOLOGY PARK, CIBINONG BERDASARKAN SEKUEN DNA DARI MITOKONDRIA D-LOOP Astuti, Dwi; Kurniati, Hellen
JURNAL BIOLOGI INDONESIA Vol 6, No 3 (2010): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jbi.v6i3.3147

Abstract

ABSTRACTGenetic Diversity of Amphibia (Rana nicobariensis) at Ecology Park, Cibinong Based onDNA Sequences of Mitochomndrial d-Loop. The 397- base pairs from ten nucleotide sequencesof mitochondrial d-loop region were determined and analyzed in object to study the geneticdiversity of frog Rana nicobariensis at Ecology Park, Cibinong, West Java. There were sixhaplotypes from 10 individuals collected from Ecology Park. Haplotype and nucleotide oramino acid diversities in Ecology Park were 0.964 and 0.0064 respectively.Key words: Genetic diversity, Rana nicobariensis, Ecology Park Cibinong, DNA sequences,mitochondrial-d-loop
KARAKTERISTIK SUARA KELOMPOK KODOK MICROHYLIDAE BERTUBUH KECIL ASDAL BALI (ANURA: MICROHYLIDAE) Kurniati, Hellen; Hamidy, Amir
JURNAL BIOLOGI INDONESIA Vol 10, No 2 (2014): Jurnal Biologi Indonesia
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jbi.v10i2.2099

Abstract

Advertisement calls of Microhyla palmipes and Oreophryne monticola have never been described before; howevercharacteristics of M. orientalisâ??s calls has been described just to support new species publication. The advertisement calls oftwo individual males of M. orientalis and M. palmipes which originated from Wongaya Gede, Bali were recorded in July2010 at air temperatures of 26.0°C. Three individuals males of O. monticola were recorded in Eka Karya Botanical Garden,Bali at air temperature of 25.0°C. Call components were obtained from 65 calls of M. orientalis, consisting of 95 pulses; 10calls of M. palmipes, consisting of 113 pulses; 3 calls of O. monticola, consisting of 127 pulses, which were then analyzed toobtain the characteristics of sound waves by using software of Adobe Audition 3.0. Sound waves of M. orientalis mainlyconsists of two dominant frequencies raging from 1873-2062 Hz and 3375-3562 Hz; however sound waves of M. palmipesand O. monticola mainly consist of only one dominant frequency that ranges of the frequency is the same, i.e. 3000-3937Hz. Although M. palmipes and O. monticola have the same range on dominant frequency, but the two species have significantlydifferent on number of period per pulse, pulse duration, pulse interval, pulse period, call duration and call interval.Key words: frog call, Microhylidae, Bali Island
KEPADATAN POPULASI KODOK FEJERVARYA CANCRIVORA DI PERSAWAHAN KABUPATEN KARAWANG, JAWA BARAT Kurniati, Hellen; Sulistyadi, Eko
JURNAL BIOLOGI INDONESIA Vol 13, No 1 (2017): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jbi.v13i1.3097

Abstract

ABSTRACTKarawang District is the largest producer of frog meat in West Java. To find out how the frog harvesting impacts to the represent condition of population in the wild, on 16-27 May 2016 population survey was conducted on paddy field in East Karawang by implementing transect method with total length was 3000 meters. The results of this transect method showed that the population of juvenile was the highest in most areas of transects, followed by pre-adult population. The population of adult individuals was at the lowest and most adult male individuals were detected by the call that they make. Conditions of water supply in rice fields also determine the conditions of juvenile and pre-adult populations; newly planted rice fields with high water availability obtained the highest population per unit area compared to the condition of paddy fields with a little water availability; but exceptions to the plowed rice fields, despite the availability of a lot of water but disturbance from human activities was also high. Average density per unit area m2 for a little watery rice fields to dry with a total length of 1500 meters transect were as follows: (1) juvenil density was 0.33 individuals/m2, (2) pre-adult density was 0.04 individuals/m2, (3) adult density was 0.005 individuals/m2. Average density for much watery rice fields with a total length of 1200 meters transect were as follows: (1) juvenile density was 0.89 individuals/m2, (2) pre-adult density was 0.08 individuals/m2, (3) adult density was 0.01 individuals/m2.Key words: population density, Fejervarya cancrivora, paddy field, Karawang District
PUPAL ACOUSTIC BEHAVIOUR OF TROIDES HELENA HELENA (LINNAEUS, 1758) (LEPIDOPTERA: PAPILIONIDAE) FROM WEST JAVA, INDONESIA Kurniati, Hellen; Peggie, Djunijanti; Sulistyadi, Eko
JURNAL BIOLOGI INDONESIA Vol 14, No 1 (2018): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jbi.v14i1.3657

Abstract

ABSTRACTTroides helena helena (Linnaeus, 1758) can be found in Java and Bali. The larval and adult stages of this butterfly do not produce any sound, but the pupal stage produces sound in response to a touching stimulus. Sony PCM-M10 recorder and Pettersson M500 USB Ultrasound Microphone were used to record the sound. Adobe Audition 3.0 was used to visualize the oscillogram and audiospectrogram of the sound. Beyond our expectations, the pupae produce ultra sound hisses which are composed of many impulses. A one-day-old pupa has a frequency range between 0.2-40 kHz; however of 2-days to 18-days-old has a frequency range between 0.2-150 kHz. The sound wave consist of two sound elements, i.e. the audible sound element (0.2-20 kHz) and inaudible sound element (>20-150 kHz) and the bandwidth is between 200 Hz to around 150 kHz, with the strongest spectrum energy at around 2.6 kHz, 4 kHz, 6 kHz, 9 kHz and 23 kHz and some strong spectrum energy is also visible at around 40 kHz.Key words: acoustic, behaviour, butterfly, pupa, Troides helena helena
KARAKTER SUARA LIMNONECTES MODESTUS (BOULENGER, 1882) ASAL SUAKA MARGASATWA NANTU, GORONTALO, SULAWESI BAGIAN UTARA Kurniati, Hellen; Hamidy, Amir
JURNAL BIOLOGI INDONESIA Vol 14, No 2 (2018): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jbi.v14i2.3728

Abstract

ABSTRACTCall characteristics of Limnonectes modestus (Boulenger, 1882) which is endemic to Sulawesi have never been described before.  The advertisement calls of two individual males collected from Nantu Wildlife Sanctuary, Gorontalo, northern Sulawesi were recorded in December 6, 2014 at air temperatures of 26°C.  Adobe Audition 3.0 software was used to visualize sound waves.  Advertisement call of L. modestus is very simple, which only has one type of call containing 1-6 pulses.  Pulse duration, pulse rate and call rate of the two individual males are very diverse, ranged between 21-56 milli seconds, 2.58 to 7.87 pulses/second and 0.09-1.16 call/second; but the frequency variation of call is very low, the lower frequency range between 515.6 to 593.0 Hertz (CV=3.1%), whereas the upper frequency range between 2179.0 to 2859.0 Hertz (CV=5.4%); the band width of the frequency range between 1616.5 to 2320.0 Hertz (CV=7.1%). Key words: vocalization, Limnonectes modestus, Nantu Wildlife Sanctuary, North Sulawesi