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All Journal Biota: Jurnal Ilmiah Ilmu-Ilmu Hayati
Wibowo N. Jati
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology

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Kajian Awal Pemanenan Siput Laut (Gastropoda) di Pantai Krakal, Yogyakarta: II. Aktivitas Pemanen Felicia Zahida; Mastok B. Sinulingga; Wibowo N. Jati
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 | DOI: 10.24002/biota.v10i1.2795

Abstract

A preliminary study on marine snails harvest (Gastropods) has been done in Krakal beach, Yogyakarta, during October to December 2003. Krakal beach has become an under-pressure habitat since tourism industry occurred all over Indonesia. Marine snails have been harvested for over two decade in this area but there is no study regarding this activity yet. This study aims to elucidate the harvester’s knowledge about simple conservation and activities such as the way of harvesting, the intensity of harvesting and the income generating from harvesting gastropods.
Sebaran dan Kemelimpahan Burung Layang-Layang Asia (Hirundo rustica Linn.) di Propinsi Daerah Istimewa Yogyakarta Stefan Agung W; Djuwantoko Djuwantoko; Wibowo N. Jati
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 | 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 Wahyu Nugroho; Djuwantoko Djuwantoko; Wibowo N. Jati
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 | 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.
Co-Authors Djuwantoko Djuwantoko Felicia Zahida Mastok B. Sinulingga Stefan Agung W Wahyu Nugroho