Population estimation of freshwater crocodiles (Crocodylus novaeguineae) and tree vegetation diversity at wildlife reserve of Mamberamo Foja, Papua, Indonesia
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Abstract. Suharno, Kadir A, Sembiring E, Masiki AD, Mubarak T, Lessil N, Ratnawati LD, Idris D, Imbenai JG. 2021. Population estimation of freshwater crocodiles (Crocodylus novaeguineae) and tree vegetation diversity at wildlife reserve of Mamberamo Foja, Papua, Indonesia. Biodiversitas 22: 2928-2936. The structure and composition of vegetation in the conservation area have a major influence on the existence of other flora and fauna, including freshwater crocodiles (C. novaeguineae). Wildlife Reserve of Mamberamo Foja (WRMF) is a conservation area in Papua that aims to protect the habitat and existence of freshwater crocodiles. The purpose of this study was to estimate the number of freshwater crocodile populations and tree species diversity in the WRMF, Papua. The method used was a field survey. The crocodile survey was carried out using the spotlight night count method. Tree species diversity was assessed using the line-transect plot method in 6 different locations representing the Upper, Central, and Lower Mamberamo. The results of the investigation showed that the freshwater crocodile population in the WRMF was around 0.3-19.7 individuals per kilometer. The population of this freshwater crocodile was very high, with an average of 4.5 individuals per 1-kilometer distance. The highest population numbers were found in the upstream Mamberamo River area 6.22 ind./km, followed by the central Mamberamo (2.21 ind./km) and downstream Mamberamo area (2.05 ind./km). Crocodiles were found in the Mamberamo River and other river systems, such as swamps and lakes. The tree vegetation in this area is still relatively good, and there are 112 species, dominated by the Moraceae, Burseraceae, Myrtaceae, Rubiaceae, Lauraceae, Dipterocarpaceae, and Euphorbiaceae families. The results of this study are important as a basis for determining the conservation policy for freshwater crocodiles that have limited distribution.
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References
Brackhane S, Xavier FME, Gusmao M, Fukuda Y. 2018. Habitat mapping of the saltwater crocodile (Crocodylus porosus) in Timor-Leste. Herpetological Review 49 (3): 439-441.
Brauer I. 2003. Money as a indicator: to make use of economics evaluation for biodiversity conservation. Agriculture, Ecosystem, and Environment 98: 483–491. doi: https://doi.org/10.1016/S0167-8809(03)00107-5
Britton A. 2012. Crocodylus novaeguineae (Schmidt, 1928). Crocodilian species list. (online). Accesed December 5, 2019 at http://crocodilian.com/cnhc/csp_cnov.htm
Cox JH. 2010. New Guinea freshwater crocodile Crocodylus novaeguineae. pp. 90-93 in Crocodiles. Status Survey and Conservation Action Plan. Third Edition, ed. by S.C. Manolis and C. Stevenson. Crocodile Specialist Group. Darwin. https://www.iucncsg.org/ 365_docs/attachments/protarea/16_C-9056770a.pdf
de Fretes Y, Rachman IA, Wally E. 2002. Vegetation of the Dabra Area, Mamberamo River Basin, Papua, Indonesia. RAP Bulletin of Biological Assesment. 25. Conservation International, Washington DC., USA. pp: 51–56.
Fukuda Y, Cuff N. 2013. Vegetation communities as nesting habitat for the saltwater crocodiles in the Northern Territory of Australia. Herpetological Conservation and Biology 8 (3): 641?651.
Fukuda Y, Saalfeld K. 2014. Abundance of saltwater crocodile hatchlings is related to rainfall in the preceding wet season in Northern Australia. Herpetologica 70 (4): 439-448.
Hall PM. 1989. Variation in geographic isolates of the New Guinea crocodile (Crocodylus novaeguineae Schmidt) compared with the similar, allopatric, Philippine crocodile (C. mindorensis Schmidt). Copeia 1: 71–80.
Hall PM, Johnson DR. 1987. Nesting biology of Crocodylus novaeguineae in Lake Murray District, Papua New Guinea. Herpetologica 43 (2): 249–258.
Handono N, Tanjung RHR, Zebua LI. 2014. Structure of vegetation and economic value of mangrove forest in Youtefa Bay, Jayapura City Regency, Papua. Jurnal Biologi Papua 6 (1): 1-11. (Indonesian)
Hergoualc’h K, Carmenta R, Atmaja S, Martius C, Murdiyarso D, Purnomo H. 2018. Managing peatlands in Indonesia: Challenges and opportunities for local and global communities. Center for International Forestry Research (CIFOR), Bogor, Indonesia. https://www.cifor.org/knowledge/publication/6449.
Hermawan MTT, Faida LRW, Wianti KF, Marhaento H, Anindia A. 2014. Pengelolaan kawasan konservasi. Gadjah Mada University Press. Yogyakarta. (Indonesian)
Hunter Jr. ML. 1996. Fundamental of conservation biology. Blackwell Science. Cambridge.
Indonesia Forest and Climate Support (IFACS). 2014. Planning of landscape conservation of Mamberamo Raya Regency, Papua Province. USAID-Indonesia Forest and Climate Support (IFACS). (Indonesian)
Indrawan M, Primarck RB, Supriatna J. 2007. Conservation biology. Yayasan Obor Indonesia. Jakarta. (Indonesian)
Kadir A, Tanjung RHR, Suharno, Rumahorbo BT, Reza DA. 2020. Soil physicochemical and ethnobiological studies on the peat swamp forests of Southern Papua, Indonesia. Biodiversitas 21 (4): 1714–1722.
Kartikasari SS, Marshall AJ, Beehler BM. 2012. Papua Ecology. Series of Indonesia ecology. Penerbit Yayasan Pustaka Obor dan CI. Jakarta.
Kurniati H, Nugroho A, Wiradinata EM. 2017. Review of Crocodylus novaeguineae from Indonesia. https://www.researchgate.net/publication/321745999_Review_of_Crocodylus novaeguineae_from_Indonesia.
Magnusson EW. 1980. Habitat required for nesting by Crocodylus porosus (Reptilia: Crocodilidae) in Northern Australia. Aust. J. Wildl. Res. 7 (1): 149–156.
Man Z, Yishu W, Peng Y, Xiaobing W. 2011. Crocodilian phylogeny inferred from twelve mitochondrial protein-coding genes, with new complete mitochondrial genomic sequences for Crocodylus acutus and Crocodylus novaeguineae. Molecular Phylogenetics and Evolution 60 (1): 62–67.
Mauger LA, Velez E, Cherkiss MS, Brien ML, Boston M, Mazzotti FJ, Spotila JR. 2012. Population assessment of the American crocodile, Crocodylus acutus (Crocodilia: Crocodylidae) on the Pacific coast of Costa Rica. Rev. Biol. Trop 60 (4): 1889-1901.
Montague JJ. 1984. Morphometric analysis of Crocodylus novaeguineae from the Fly River drainage, Papua New Guinea. Aust. Wildl. Res 11: 395-414.
Murray CM, Russo P, Zorrilla A, McMahan CD. 2019. Divergent morphology among populations of the New Guinea Crocodile, Crocodylus novaeguineae (Schmidt, 1928): Diagnosis of an independent lineage and description of a new species. Copeia 107 (3): 517–523.
Papua Regional Government. 2012. Kajian Lingkungan Hidup Strategis Raperdasi RTRW Provinsi Papua 2010–2030. Jayapura. (Indonesian)
Read MA, Miller JD, Bell IP, Felton A. 2004. The distribution and abundance of the estuarine crocodile, Crocodylus porosus, in Queensland. Wildlife Research 31: 527–534.
Richard S, Iskandar DT, Tjaturadi B. 2002. Amphibians and reptiles of the Dabra areas, Papua, Indonesia. RAP Bulletin of Biological Assesment. 25. Conservation International, Washington DC., USA. pp: 76–79.
Salem AHI. 2013. Habitat vulnerability for the Nile Crocodile (Crocodylus niloticus) In Nasser Lake (Egypt). Transylv. Rev. Syst. Ecol. Res 15 (1): 19–32.
Solmu G, Manolis C. 2019. Crocodylus novaeguineae. The IUCN Red List of Threatened Species 2019: e.T46591A3010398. https://dx.doi.org/10.2305/IUCN.UK.2019-2.RLTS.T46591A3010398.en. Downloaded on 08 August 2020.
Suharno, Tanjung RHR. 2011. Matoa (Pometia sp): Potency, domestification, and their agriculture. Pustaka Pelajar. Yogyakarta. (Indonesian)
Tanjung RHR, Suharno, Kalor JD. 2012. Vegetation analysis and potency of non-timber forest in forest area at Pagai, Airu Dstrict, Jayapura Regency, Papua. Jurnal Biologi Papua 4 (2): 54-62. (Indonesian).
Yule CM. 2010. Loss of biodiversity and ecosystem functioning in Indo-Malayan peat swamp forests. Biodiversity and Conservation 19: 393-409.
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