Djuwantoko Djuwantoko
Fakultas Kehutanan Universitas Gadjah Mada, Jl. Bulaksumur Telp/Fax : (0274) 901415, 901420, Yogyakarta

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STRATEGI PENGELOLAAN PEGUNUNGAN JAWA : STUDI KASUS PEGUNUNGAN DIENG JAWA TENGAH, INDONESIA Sumedi, Nur; Simon, Hasanu; Djuwantoko, Djuwantoko
Jurnal Penelitian Kehutanan Wallacea Vol 1, No 1 (2012): Jurnal Penelitian Kehutanan Wallacea
Publisher : Balai Penelitian dan Pengembangan Lingkungan Hidup dan Kehutanan Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (366.059 KB) | DOI: 10.18330/jwallacea.2012.vol1iss1pp36-49

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This research was conducted in Dieng Mountains region of Central Java Province, from August 2007 to December 2008. The purpose of this research was to find the optimal management strategy. Strategy Analysis using the SWOT technique. The results showed that the management of the Dieng Mountains region should consider the priorities and strategies that were urgently needed to improve effective communication among stakeholders. While for the other six strategic priorities were: (1) Finding and applying the optimal model of land use (economic, social, ecological), (2) Eliminate sectoral barriers to jointly harness the potential from outside the area, (3) Enhance the institutional competence to exciting role of institutions of all levels, (4) Improving the quality and quantity of human resources management of mountain areas; (5) Increasing the role of a forum for dialogue by taking the experience of history; (6) Increase the environmental awareness program with a realistic field implementation. 
STUDI PENGARUH JUMLAH PENGUNJUNG TERHADAP KEANEKAAN JENIS DAN KEMELIMPAHAN BURUNG DI KAWASAN WISATA ALAM KOPENG Utami, Retno Nur; Djuwantoko, Djuwantoko; Mukhlison, Mukhlison
Jurnal Manusia dan Lingkungan (Journal of People and Environment) Vol 14, No 2 (2007)
Publisher : Pusat Studi Lingkungan Hidup Universitas Gadjah Mada

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Abstract

Penelitian yang dilakukan di Kawasan Wisata Alam (KWA) Kopeng ini bertujuan untuk mengetahui pengaruh jumlah pengunjung terhadap keanekaan jenis dan kemelimpahan burung di KWA Kopeng; mengetahui keanekaan jenis dan kemelimpahan burungterhadap tingkat kepuasan pengunjung; serta untuk memberikan arahan pengelolaan pengunjung berdasarkan hasil penelitian. Pengamatan burung dan pengunjung dilakukan dengan metode point count. Titik pengamatan dipilih secara representatif menggunakan teknik random sampling. Berdasarkan peta kawasan hutan wisata dan pengecekan lapangan dilakukan pembagian lokasi titik pengamatan sebanyak 21 titik. Titik pengamatan berbentuk lingkaran dengan radius 20 m, kemudian titik-titik pengamatan yang telah terpilih dipetakan dan didokumentasikan untuk memudahkan pengamatan pada periode berikutnya. Waktu pengamatan adalah selama dua (kali) hari Minggu. Hari Minggu dipilih atas pertimbangan kemudahan perjumpaan dengan pengunjung. Selain dilakukan pengukuran terhadap variabel-variabel terpilih (dalam rangka memperoleh data primer, juga dilakukan pengumpulan data sekunder yang meliputi data kondisi umum lapangan dan sistem pengelolaan kawasan. Data primer yang terkumpul selanjutnya dianalisis dengan menggunakan model regresi linier sederhana dan korelasi peringkat Spearman, masing-masing untuk mengetahui pengaruh jumlah pengunjung (variable bebas) terhadap keanekaan jenis burung dan jumlah kemelimpahan burung (variabel-variabel bergantung); dan untuk mengetahui korelasi antara variabel keanekaan jenis burung maupun variabel kemelimpahan burung dengan variabel kepuasan pengunjung. Dari hasil penelitian dapat disimpulkan bahwa jumlah pengunjung tidak berpengaruh nyata terhadap keanekaan jenis dan kemelimpahan burung di Kawasan Wisata Alam Kopeng; terdapat korelasi yang negatif antara keanekaan jenis dan kemelimpahan burung dengan tingkat kepuasan pengunjung.  
KARAKTERISTIK TANAH DAN MIKROKLIMAT HABITAT BURUNG MALEO (MACROCEPHALON MALEO) DI TAMAN NASIONAL LORE LINDU SULAWESI TENGAH Hafsah, Hafsah; Yuwanta, Tri; Kustono, Kustono; Djuwantoko, Djuwantoko
Jurnal Manusia dan Lingkungan (Journal of People and Environment) Vol 16, No 2 (2009)
Publisher : Pusat Studi Lingkungan Hidup Universitas Gadjah Mada

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Abstract

Penelitian ini bertujuan untuk mengetahui karakteristik tanah dan mikroklimat habitat burung maleo di Taman Nasional Lore Lindu Sulawesi Tengah. Metode yang digunakan adalah metode survey dengan melakukan pengamatan dan pengukuran langsung variabel di habitat alami. Analisis data secara deskriptif berdasarakan hasil pengamatan di lapangan dan di laboratorium. Hasil penelitian menunjukkan bahwa habitat peneluran burung maleo di Taman Nasional Lore Lindu mempunyai karakteristik tanah dengan tekstur (pasir pada kisaran 45,80%-62,80%; liat antara 4,30%-8,20% dan debu dengan kisaran 22,90%-46,50%) dan kelsa tekstur tanah didominasi lempung berpasir (LB) 77,80% dan lempung debu berpasir (LDB) 22,20%. Kisaran pH tanah antara 6,15-6,75 dengan kandungan bahan organik (C dan N) yang rendah, berarti tingkat kesuburan juga rendah. Kondisi mikroklimat pada lubang peneluran mempunyai rataan temperatur 33,08 oC dengan kisaran (31-35 oC), dan kelembaban 86,52% dengan kisaran 60,90-71,00%. Mikroklimat dalam tanah sangat penting peranannya untuk perkembangan embrio telur burung maleo selama dalam proses inkubasi.
Tipe Hunian dan Jenis Mangsa Burung Serak Tyto alba javanica pada Ekosistem Persawahan K., Retno Astuti; Mangoendihardjo, Soeprapto; Wagiman, F. X.; Djuwantoko, Djuwantoko
Jurnal Perlindungan Tanaman Indonesia Vol 10, No 2 (2004)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpti.12121

Abstract

The barn owl, Tyto alba javanica (Gmel.); is one of the important predator of rats. For controlling the rat population, the predator must retain in the rice ecosystem in which it is supported by continuous availability of its prey and suitable nest. The barn owl does not make its own nest, hence, the suaitable nest are necessary vailable in the ecosystem. The rat population fluctuatesand in the certain time it is difficult to find, hence, alternative preys have to be available. The nest type and prey species of the barn owl in the rice-field ecosystem had been survayed in Kendal District, Central Java Province, from October 2003 until March 2004. The area represented the rice-field ecosystem type with various habitats. The prey species were described from analysis of 2.261 pellets that were collected from 106 nests. The nests were found and distributed in 72 sub-sub district and in 17 subdistricts. Hairs, pulmes, skulls, teeth, obtained from the pellets were identified following the Hafidzi & Naim method (2003).The nest types consisted of building plafon (76,41%), trees (20,75%) and nest box (2,84%). Rats were the predominant prey-species (86,90%); consisted of Rattus argentiventer 77,08%, Rattus norvegicus 9,86%, Rattus rattus diardii 0,58%, Bandicota indica 0,01% and Rattus tiomanicus 0,005%),followed by aves (5,49%), insects (3,98%), bats (2,07%), and others (1,59%) i.e. squirrels, gecko, house-lizard, and frogs.
KARAKTERISTIK HABITAT MIKRO SEBAGAI DASAR POLA PENETASAN TELUR MALEO DI TAMAN NASIONAL LORE LINDU SULAWESI TENGAH Hafsah, Hafsah; Yuwanta, Tri; Kustono, Kustono; Djuwantoko, Djuwantoko
Agroland: Jurnal Ilmu-ilmu Pertanian Vol 15, No 3 (2008)
Publisher : Universitas Tadulako

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Abstract

The Objective of the study was to identify microhabitat characteristics in natural nesting ground as a basic form of egg hatching of maleo birds for ex-situ habitat in Lore Lindu National Park. Survey methods and experimental design were applied in this study using Saluki Nesting Ground as a habitat model. In a natural habitat, variables observed were microclimate condition (temperature and humidity, depth and diameter of holes) while in an artificial habitat where four different forms of eggs hatching (in-situ, ex-situ, incubator by means of media rack and sand) were applied temperature, humidity, hatching quality, incubation time, hatching weigh, and mortality were determined. Data analysis applied was descriptive analysis and multivariate test using SPSS computer program. Results of the study showed that in the natural nesting ground the temperature ranged from 30 to 35 oC with an average temperature of 33.03oC, and the humidity from 60.20 to 71.10% with an average humidity of 68.55%. The hole diameter ranged from 28-63 cm with an average hole diameter of 41.64 cm and the hole depth from 51-87cm with an average hole depth of 63.29 cm. The application of hatching method was resulted in the in-situ temperature and humidity of 32.90 oC and 68.41%, respectively, and the ex-situ of 31.68 oC and 67.52%, respectively, rack incubator of 33.99 oC and 70.06%, respectively, and sand incubator of 33.78 oC and 71.02%, respectively. The longest incubation time was found in the ex-situ semi natural hatchery which was 78.40 days, followed by the in-situ habitat 63.48 days, rack incubator 59.40 days, and sand incubator 59.33 days. The best hatching quality was found in the rack incubator, but the mortality rate was highest. The application of incubator for egg hatching of maleo birds could reduce the incubation time length and increase the hatching quality
Sebaran dan Kemelimpahan Burung Layang-Layang Asia (Hirundo rustica Linn.) di Propinsi Daerah Istimewa Yogyakarta W, Stefan Agung; Djuwantoko, Djuwantoko; Jati, Wibowo N.
Biota : Jurnal Ilmiah Ilmu-Ilmu Hayati Vol 10, No 1 (2005): February 2005
Publisher : Universitas Atma Jaya Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2022.099 KB) | DOI: 10.24002/biota.v10i1.2864

Abstract

Asian Swallow Bird (Hirundo rustica Linn.) representing one of the type of bird migran which is spread over in almost entire all earth. This Bird type in Java and Bali represent the common winter visitor met in all height. Information of concerning this animal existence in Yogyakarta very minim, last data about existence and amount of Asian swallow bird population in Yogyakarta in reporting in the year 1996 and till now there is no researcher reporting the species existence in Yogyakarta. This Research study about abundance population and distribution Asian swallow bird at season of migration of September 2003 - March 2004 in all region Yogyakarta. Research conducted in all region of Province of Special Region of Yogyakarta consisted by 5 sub-province, that is Sub-Province Sleman, Sub-Province Bantul, Sub-Province Kulonprogo, Sub-Province of Gunung Kidul and Municipality D.I. Yogyakarta. Parameter measured in this research is estimating an abudan of population and location of distribution population. Data intake of is amount of population conducted by direct enumeration, whereas intake of distribution data conducted by noting the name of location and geographical position. Data of result of research obtained in compiling in tables, is later then made by graph of population fluctuation and ploted in map of pursuant to co-ordinate finding of Asian swallow bird individual. To know diffraction resulted by a population enumeration, will be counted with the standard deviation formula. Result of perception indicate that full scale of Asian swallow bird population during a period to migration reach the maximum value equal to 32.579 that happened at third week of November 2003 and amount of biggest population is concentration in jl. K.H. Ahmad Dahlan and jl. Senopati, area Malioboro, Municipality Yogyakarta, that is equal to 28877? 36,91. Sub-Province Bantul represent the area which is at most met by the Asian swallow bird location.
Studi Perilaku Teritorial Burung Cangak Abu (Ardea cinerea Linn.) di Kebun Raya dan Kebun Binatang Gembiraloka Yogyakarta Nugroho, Wahyu; Djuwantoko, Djuwantoko; Jati, Wibowo N.
Biota : Jurnal Ilmiah Ilmu-Ilmu Hayati Vol 10, No 3 (2005): October 2005
Publisher : Universitas Atma Jaya Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (226.209 KB) | DOI: 10.24002/biota.v10i3.2877

Abstract

This study aim to see on ecological aspect of Cangak Abu specifically on its behavior in defending their terittory. This research was done from July to August 2004. Data collecting was done using territory mapping methods with three observation area (1st-3rd). One pair of Cangak Abu observed at each area. Cangak Abu showed some behavior such as vocalization, sound, visual display, visual display-sound, visual display-sound-shortflight, patroling flight and fighting. The territories on frist to third observation areas were OA : 9 m2; OA : 6 m2 and OA : 9 m2 respectively.