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All Journal Biota: Jurnal Ilmiah Ilmu-Ilmu Hayati 'ADALAH Biotropika Buletin Kebun Raya REINWARDTIA TREUBIA ZOO INDONESIA Jurnal Biodjati Jurnal Vokasi Indonesia Jurnal Kelautan dan Perikanan Terapan (JKPT) 3BIO: Journal of Biological Science, Technology and Management Zoo Indonesia BISNIS & BIROKRASI: Jurnal Ilmu Administrasi dan Organisasi Jurnal Keuangan dan Perbankan(KEBAN) BHAKTI PERSADA Jurnal Aplikasi IPTEKS (Journal of Applied Sciences and Technology) Gunung Djati Conference Series Jurnal Penelitian Kehutanan Wallacea Jurnal Vokasi Indonesia Reinwardtia
Erwin Nurdin
Community Ecology And Environmental Biology, Department Of Biology, Faculty Of Mathematics And Natural Sciences, Universitas Indonesia
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Journal : Jurnal Biodjati

 1 
Habitat and Distribution Modeling of Prehistoric Hippos (Hippopotamus sivalensis spp.) During Pleistocene in Java Island Andriwibowo Andriwibowo; Adi Basukriadi; Erwin Nurdin
Jurnal Biodjati Vol 6, No 1 (2021): May
Publisher : UIN Sunan Gunung Djati Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/biodjati.v6i1.10250

Abstract

Currently, there are only 2 extant species of hippos including common (Hippopotamus amphibius) and pygmy hippos (Choeropsis liberiensis) . But in prehistoric times, there were several species. During  Pleistocene these species were known to migrate to Java Island from Asian Continent and the species was Hippopotamus sivalensis spp. In this regard, this study aimed to model the habitat of H. sivalensis spp., ecology, and biodiversity of Hippopotamus sivalensis spp. based on the fossil record. The model was developed based on the Principal Component Analysis (PCA) method using the R statistical package. The results showed that there were 7 populations of H. sivalensis spp. that lived at various altitudes with an average of 177 m above sea level (95% CI : 123-232 m). According to PCA, there were at least 2 separate populations of H. sivalensis spp. One population occupies the forest while another occupies a habitat close to the coast. Currently the habitat for H. sivalensis spp. already changed. Based on habitat modeling, H. sivalensis spp. inhabit streams with submerged aquatic plants and shrubs and trees growing along river banks.
Habitat Preference Modeling of Prehistoric Giant Shark Megalodon During Miocene in Bentang Formation of West Java Coast Andriwibowo Andriwibowo; Adi Basukriadi; Erwin Nurdin; Muh Aydava Mubarok
Jurnal Biodjati Vol 6, No 2 (2021): November
Publisher : UIN Sunan Gunung Djati Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/biodjati.v6i2.14115

Abstract

In the Miocene era about 20 million years ago, the South Coast of West Java was a sea and habitat for marine organisms including giant sharks Megalodon measuring about 18 meters long. This study aimed to model the habitat preference of the prehistoric gigantic shark Otodus megalodon population based on the fossil record. From fossil teeth, it revealed that the rock layer where the teeth found was Bentang formation from Miocene era. Many fossils of Megalodon had been unearthed from Bentang formation which is part of the South Coast of West Java. The habitat model was developed using the Sea Level Rise Inundation Tool of ArcGIS to estimate the sea depth and Megalodon’s habitat during the Miocene. The length of the teeth of O. megalodon found was ranged from 13 to 19 cm, indicating the presence of juvenile and adult O. megalodon. Based on the model, in the Miocene era, half of West Java was a sea with a depth ranging from 0 to 200 meters. At that time, it was estimated that juvenile O. megalodon occupied waters with a depth of 0-40 meters with an area of 1365 km2. Meanwhile, adult O. megalodon prefers a depth of 80-160 m and the frequency of habitat use increases at a depth of 200 m. The declining population of O. megalodon is associated with climate change and declining prey populations.
Co-Authors A.A. Ketut Agung Cahyawan W Adi Basukriadi Adi Basukriadi Adi Basukriadi Adi Basukriadi Adi Basukriadi ADI BASUKRIADI Adi Basukriadi Adi Basukriadi Adi Basukriadi Adrian Zulkarnaen Amanda Zahra Djuanda Andri Wibowo Andri Wibowo Andri Wibowo Andriwibowo Andriwibowo Andriwibowo Andriwibowo Andriwibowo Andriwibowo Andriwibowo Andriwibowo Andriwibowo Andriwibowo Andriwibowo Andriwibowo Andriwibowo Andriwibowo Andriwibowo Andriwibowo, Andriwibowo arie widodo Asti Setiawati Atus Syahbudin Atus Syahbudin Audithiya Deriano Deni Danial Kesa Elizabeth Adeline Elvira, Ade Irma Gabriella Ria Kirana Gayatri Rejeki Hasanah, Nenti Rofiah Jatna Supriatna Katherine Hedger Kuswata Kartawinata Kuswata Kartawinata KUSWATA KARTAWINATA Mufti Petala Patria Muh Aydava Mubarok Mulyanah, Sitiawati Nana Suryana Nasution Nana Suryana Nasution Nasution, Nana Suryana Nisyawati Nisyawati Nisyawati Nisyawati Nisyawati Nisyawati Nisyawati Nisyawati, Nofiantoro, Wahyu Rahmah Rahmah Ramadhani, Muhammad Reza Safitri, Karin Amelia Shiddiq, Zulfi Sam Vasenev, Ivan Ivanovich Vindaniar Yuristamanda Putri Vita Meylani Wibowo, Andrio A Wisnu Wardhana Wisnu Wardhana Wisnu Wardhana Yusi Rosalina Yusi Rosalina Yusi Rosalina Zeadora Abbya Trisya