Characteristics of the Tapanuli Orangutan Habitat in the Conflict Area of Batang Toru Landscape, North Sumatra, Indonesia
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Forest fragmentation has resulted in decreased wildlife habitat, which has triggered conflicts with humans due to the use of the same plants. This has been particularly contentious with the tapanuli orangutan. Research of the tapanuli orangutan (Pongo tapanuliensis) habitat is very limited. The aims of this research is to examine the latest habitat conditions, such as land cover, composition of vegetation, feed plant, and habitat carrying capacity to provide recommendations for habitat management in developing a mitigation policy of the human-tapanuli orangutan conflict. The research location is focused on the area of human-orangutan conflict in the Batang Toru Landscape in South Tapanuli Regency, which took place from August to December 2019. Vegetation analysis was conducted using the strip transect method with a total of 294 plots (11.76 ha). The number of species at the pole and tree levels were high with 149 species (46 families) and diversity index (H') > 3. Eighty feed plant species were found and expected to support the growth of the orangutan population of 247 individuals. The density and diversity of cultivated plant species in the buffer zone were high and consumption by orangutans resulted in human-tapanuli orangutan conflict, especially on durian (Durio zibethinus Murray). Conflict with humans will cause stress and disruption to the growth of the tapanuli orangutan. We recommend habitat management to mitigate conflict through patrols for monitoring habitat destruction in conservation forests, enrichment of feed plants in Forest Management Units, cultivation of orangutan non-food crops on community lands, and building a corridor with orangutan food crops with fruits that are not utilized by humans.
Abram, N. K., Meijaard, E., Wells, J. A., Ancrenaz, M., Pellier, A. S., Runting, R. K., .….., & Mengersen, K. (2015). Mapping perceptions of species' threats and population trends to inform conservation efforts: the Bornean orangutan case study. Diversity and Distributions, 21(5): 487-489. https://doi.org/10.1111/ddi.12286
Alatar, A., El-Sheikh, M. A., & Thomas, J. (2012). Vegetation analysis of Wadi Al-Jufair: a hyper-arid region in Najd, Saudi Arabia. Saudi Journal of Biological Sciences, 19(1), 43-54.
Alikodra, H. S. (2019). Ekologi konservasi pengelolaan satwaliar: hidup harmoni dengan alam. Bogor: PT. Penerbit IPB Press.
Ango, T. G., Borjeson, L., & Senbeta, F. (2017). Crop raiding by wild mammals in Ethiopia: impacts on the livelihoods of smallholders in an agriculture-forest mosaic landscape. Oryx, 51, 527-537. https://doi.org/10.1017/S0030605316000028
Atmoko, S. S. U, Vilantinus, A., Susilo, H. D., Rifki, M. A., Siregar, P. G., & Ermayanti. (2014). Panduan mitigasi konflik manusia dan orangutan. Jakarta. Forum Orangutan Indonesia.
Barbour, G. M., Burk, J. K., & Pitts, W. D. (1987). Terrestrial plant ecology. New York: The Benyamin/Cummings Publishing Company.
Bastian, M. L., van Noordwijk, M. A., & van Schaik, C. P. (2012). Innovative behaviors in wild Bornean orangutans revealed by targeted population comparison. Behaviour, 149 (3-4), 275-297. https://doi.org/10.1163/156853912X636726
Bookhout, A. (1994). Research and management technique for wildlife and habitat. Ohio: National Biological Service Ohio Cooperation Fish and Wildlife Research, Columbus State University.
BPS-Statistics of South Tapanuli Regency. (2019). Kabupaten Tapanuli Selatan dalam Angka 2019. Sumatera Utara. Indonesia.
Buckley, R. C, Morrison, C., & Castley, J. G. (2016). Net effects of ecotourism on threatened species survival. PLoS ONE, 11(2). https://doi.org/10.1371/journal.pone.0147988
Chapman, E. J., & Byron, C. J. (2018). The flexible application of carrying capacity in ecology. Global Ecology and Conservation, 13, e00365. https://doi.org/10.1016/j.gecco.2017.e00365
Córdova-Lepe, F., Valle R. D., & Jiliberto, R. R. (2018). The process of connectivity loss during habitat fragmentation and their consequences on population dynamics. Ecological Modelling, 376, 68-75. https://doi.org/10.1016/j.ecolmodel.2018.01.02
Daniel, G. S., Verburg, P. H., & Dobrovolski, R. (2020). Habitat loss, extinction predictability and conservation efforts in the terrestrial ecoregions. Biological Conservation, 246. https://doi.org/10.1016/ j.biocon. 2020.108579.
Dell, J. E., Pokswinski, S. M., Richards, L. A., Hiers, J. K., Williams, B., O’Brien, J.J,. …, & Dyer, L. A. (2019). Maximizing the monitoring of diversity for management activities: additive partitioning of plant species diversity across a frequently burned ecosystem. Forest Ecology and Management, 432, 409-414. https://doi.org/10.1016/j.foreco.2018.09.022
Dickman, A. J. (2010). Complexities of conflict: the importance of considering social factors for effectively resolving human–wildlife conflict. Animal Conservation 13, 458–466. https://doi.org/10.1111/j.1469-1795.2010.00368.x
Djojoasmoro, R., Simanjuntak, C. N., Galdikas, B. M. F., & Wibowo, T. (2004). Orangutan distribution in North Sumatera. Jurnal Primatologi Indonesia, 4(1), 2-6.
Fachrul, M. F. (2007). Metode Sampling Bioekologi. Jakarta: Bumi Aksara.
Frieswyk, C. B., Johnston, C. A., & Zedler, J. B. (2017). Identifying and Characterizing Dominant Plants as an Indicator of Community Condition. Journal of Great Lakes Research, 33, 125-135. https://doi.org/10.3394/0380-1330(2007)33[125:IACDPA]2.0.CO;2
Garcia, C. A., Savilaakso, S., Verburg, R. W., Gutierrez, V., Wilson, S. J., Krug, C. B., Sassen, M., Robinson, B. E., ……, & Waeber, P.O. (2020). The global forest transition as a human affair. One Earth, 2(5), 417-428. https://doi.org/10.1016/j.oneear.2020.05.002
Geng, S., Shi, P., Song, M., Zong, N., Zu, J., & Zhu, W. (2019). Diversity of vegetation composition enhances ecosystem stability along elevational gradients in the Taihang Mountains, China. Ecological Indicators, 104, 594–603. https://doi.org/10.1016/j.ecolind.2019.05.038
Harahap, R. H and Humaizi. (2018). Local wisdom in preservation of Lake Toba ecosystems: study on TobaLake community in the Village of Silalahi I, Sub District of Silahisabungan, Dairi Regency, North Sumatera Province. IOP Conference Series: Earth and Environmental Science, 126, 1-8.
Hardus, M. E., Lameira, A. R., Menken, S. B. J., & Wich, S. A. (2012). Effectsof logging on orangutan behavior. Biological Conservation, 146, 177-187. https://doi.org/10.1016/j.biocon.2011.12.014
Haryanto, R. P, Rinaldi, D., Arief, H., Soekmadi, R., Kuswanda, W., Chasanatun, F. N.,….& Simangunsong, Y. D. (2019). The Ecology of Tapanuli Orangutan. Bogor : Working Group of Batang Toru Sustainable Landscape Management Press.
Hawn, C. L., Herrmann, J. D., Griffin, S. R., & Haddad, N. M. (2018). Connectivity increases trophic subsidies in fragmented landscapes. Ecology Letters, 21, 1620-1628. https://doi.org/10.1111/ele.12958
Hazir, M. H. M., Kadir, R. A., Gloor, E., & Galbraith, D. 2019. Effect of agroclimaticvariability on land suitability for cultivating rubber (Hevea brasiliensis) and growth performance assessment in thetropical rainforest climate of Peninsular Malaysia. Climate Risk Management, 27. https://doi.org/10.1016/j.crm.2019.100203
Hockings, K., & Humle, T. (2010). Best Practice Guidelines for the Prevention and Mitigation of Conflict Between Humans and Great Apes. Switzerland: IUCN/SSC Primate Specialist Group.
Indonesian Institute of Sciences (1982). Series Book of Flora Malesiana. Van Steenis, C. G. G. J., & Nijhoff, E. H. M. (Ed.). London: Junk Publishers.
Indonesian National Standards/SNI (2014). Klasifikasi penutup lahan-bagian 1: skala kecil dan menengah nomor 7645-1. Jakarta: Badan Standardisasi Nasional.
Ismail, D., & Jiwan, D. (2015). Browsing preference and ecological carrying capacity of sambar deer (Cervus unicolor brookei) on secondary vegetation in forest plantation. Animal Science Journal, 86(2), 225-237. https://doi.org/10.1111/asj.12271
Jiang, H., Xu, X., Guan, M., Wang, L., Huang, Y., & Jiang, Y. (2020). Determining the contributionsof climate change and human activities to vegetation dynamics in ago-pastural transitional zone of northern Chinafrom 2000 to 2015. Science of the Total Environment, 718. https://doi.org/10.1016/j.scitotenv.2019.134871
Kanamori, T., Kuze, N., Bernard, H., Malim, T. P., & Kohshima, S. (2017). Fluctuations of population density in Bornean orangutans [Pongo pygmaeus morio Linnaeus] related to fruit availability in the Danum Valley, Sabah, Malaysia: a 10-year record including two mast fruitings and three other peak fruitings. Primates, 58, 225-235. https://doi.org/10.1007/s10329-016-0584-5
Kosmidou, V., Petrou, Z., Bunce, R. G. H., Mücher, C. A., Jongman. R. H. G., Bogers M. B. M, ……, & Petrou, M. (2014). Harmonization of the Land Cover Classification System (LCCS) with the General Habitat Categories (GHC) classification system. Ecological Indicators, 36, 290-300. doi: https://doi.org/10.1016/j.ecolind.2013.07.025
Kuswanda, W. (2014). Orangutan Batangtoru: kritis di ambang punah. Bogor : Forda Press.
Kuswanda, W., & Bismark, M. (2007). Daya dukung habitat orangutan (Pongo abelii Lesson) di Cagar Alam Dolok Sibual-buali, Sumatera Utara. Jurnal Penelitian Hutan dan Konservasi Alam IV(1), 095-105.
Kuswanda, W., & Sugiarti. 2005. Potensi Habitat dan Pendugaan Populasi Orangutan (Pongo abelii Lesson 1827) di Cagar Alam Dolok Sibual-buali. Jurnal Penelitian Hutan dan Konservasi Alam II(6), 555-566.
Kuswanda, W., & Sunandar A. D. (2019). Analysis of land use change and its relation to land potential and elephant habitat at Besitang Watershed, North Sumatra, Indonesia. Biodiversitas, 20, 350-358. https://doi.org/0.13057/biodiv/d200141
Kuswanda, W., Harahap, R.H., Alikodra, H.S., & Sibarani, R. (2020). Nest characteristics and populations of Tapanuli Orangutans in Batangtoru Landscape, South Tapanuli District, Indonesia. Biodiversitas, 21, 3398-3408. https://doi.org/0.13057/biodiv/d210765
Lillo, E. P., Edwino, S. F., & Lillo, M. J. R. (2019). Plant diversity and structure of forest habitat types on Dinagat Island, Philippines. Journal of Asia-Pacific Biodiversity, 12(1), 83-105. https://doi.org/10.1016/j.japb.2018.07.003
Maldonado, E., Sharma, S., Dutta, T., Wood, C., Panwar, H. S., Seidensticker, J.,…., & Wood, T.C. (2013). Forest corridors maintain historical gene flow in a tiger metapopulation in the highlands of central India. Proceedings of the Royal Society B: Biological Sciences, 280, 1506. https://doi.org/10.1098/rspb.2013.1506
Marshall, A. J., Lacy, R., Ancrenaz, M., Byers, O., Husson, S. J., Leighton, M.,…… & Wich, S. A. (2009). Orangutan population biology, life history, and conservation. In: orangutans: geographic variation in behavioral ecology and conservation. New York: Oxford Univ. Press.
Megaze, A., Balakrishnan, M., & Belay, G. (2017). Human-wildlife conflict and attitude of local people towards conservation of wildlife in Chebera Churchura National Park, Ethiopia. African Zoology, 52, 1-8. https://doi.org/ 10.1080/15627020.2016.1254063.
Meijaard, E., Rijksen, H. D., & Kartikasari, S. N.. (2001). Diambang kepunahan : kondisi orangutan liar diawal abad ke-21. Jakarta: The Gibbon Foundation.
Meijaard, E., Sherman, J., Ancrenaz, M., Wich, S. A, Santika T., & Voigt, M. (2018). Orangutan populations are certainly not increasing in the wild. Current Biology, 28(21), 1241-1242. https://doi.org/10.1016/j.cub.2018.09.052
Ministry of Environment and Forestry. (2019). Strategi dan rencana aksi konservasi Orangutan Indonesia 2019–2029. Jakarta: Direktorat Jenderal Konservasi Alam dan Ekosistem. Kementerian Lingkungan Hidup dan Kehutanan.
Ministry of Forestry, 2014. Peraturan No P.53/Menhut-II/2014 tentang Pedoman penanggulangan konflik manusia dan satwa liar. Jakarta: Departemen Kehutanan
Morrison, M. L., Marcot, B., & Mannan, W. (2012). Wildlife-habitat relationships: concepts and applications, 3rd Edition. Washington: Island Press.
Nasution, A., Farajallah, D.P., & Atmoko, S.S.U. (2018). Nesting characteristics of the tapanuli orangutan (Pongo tapanuliensis) in two unprotected forests of Batang Toru, North Sumatra. Tropical Life Sciences Research, 29(2), 77-87. https://doi.org/ 10.21315/tlrs2018.29.16.
Nater, A., Mattle-Greminger, M. P., Nurcahyo, A., Nowak, M. G., de Manuel, M., Desai, T.,….., & Kru¨tzen, M. (2017). Morphometric, Behavioral, and Genomic Evidence for a New Orangutan Species. Current Biology, 27, 1–12. https://doi.org/ 10.1126/sciadv.1500789.
Neelakantan, A., DeFries, R., & Krishnamurthy, R. (2019). Resettlement and landscape-level conservation: Corridors, human-wildlife conflict and forest use in Central India. Biological Conservation, 232, 142-151. https://doi.org/10.1016/j.biocon.2019.01.033
Nelson, E. J., Withey J. C, Pennington, D., & Lawler, J. J. (2017). Identifying the impacts of critical habitat designation on land cover change. Resource and Energy Economics, 47, 89-125. https://doi.org/10.1016/j.reseneeco.2016.12.002 .
Oliveira, R. A. C., Marques, R., & Marques, M. C. M. (2019). Plant diversity and local environmental conditions indirectly affect litter decomposition in a tropical forest. Applied Soil Ecology, 134, 45-53. https://doi.org/10.1016/j.apsoil.2018.09.016
Pandong, J., Gumal, M., Aton, Z. M., Sabki, M. S., & Koh, L. P. (2019). Threats and lessons learned from past orangutan conservation strategies in Sarawak, Malaysia. Biological Conservation, 234, https://doi.org/10.1016/j.biocon.2019.03.016
Perbatakusuma, E. A, Supriatna, J., Siregar, R. S. E., Wurjanto, D., Sihombing, L., & Sitaparasti, D. (2006). Mengarustamakan kebijakan konservasi biodiversitas dan sistem penyangga kehidupan di kawasan hutan alam Sungai Batangtoru Provinsi Sumatera Utara. Laporan Teknik Program Konservasi Orangutan Batangtoru. Jakarta: Conservation International Indonesia-Departemen Kehutanan.
Pliscoff, P., Simonetti, J. A., Grez, A. A., Vergara, P. M., & Barahona-Segovia, R. M. (2020). Defining corridors for movement of multiple species in a forest-plantation landscape. Global Ecology and Conservation. https://doi.org/10.1016/j.gecco.2020.e01108
Rahman, D. E, Rinaldi, D., Kuswanda, W., Siregar, R., Noor, C. F., Hakim, F., Arief, H., & Putro, H. R. (2019). Determining the landscape priority and their threats for the critically endangered Pongo tapanuliensis population in Indonesia. Biodiversitas, 20(12): 3584-3592. https://doi.org/0.13057/biodiv/d201217
Rakshya, T. (2016). Living with wildlife: Conflict or co-existence. Acta Ecologica Sinica, 36(6): 509-514. https://doi.org/10.1016/j.chnaes.2016.08.004
Rockwood, L. L (2006). Introduction to population ecology. Australia: Blackwell Publishing.
Roth, T. S., Rianti, P., Fredriksson, G. M., Wich, S. A., & Nowak, M. G. (2020). Grouping behavior of Sumatran orangutans (Pongo abelii) and Tapanuli orangutans (Pongo tapanuliensis) living in forest with low fruit abundance. American Journal of Primatology, e23123. https://doi.org/10.1002/ajp.23123.
Russon, A. E. (2010). Life History: The Energy-Efficient Orangutan. Current Biology, 20(22). https://doi.org/10.1016/j.cub.2010.10.003
Sandel, B. (2015). Towards a taxonomy of spatial scale-dependence. Ecography, 38, 358-369. https://doi.org/10.1111/ecog.01034
Scanes, C. G. (2018). Human activity and habitat loss: destruction, fragmentation, and degradation, In animals and human society. Cambridge: Academic Press. https://doi.org/10.1016/B978-0-12-805247-1.00026-5
Seddon, A. W. R. M., Macias, F., & Long, P. R. (2016). Sensitivity of global terrestrial ecosystems to climate variability. Nature, 531 (7593). https://doi.org/10.1038/nature16986
Shannon, C. E. (1948). A mathematical theory of communication. Bell System Technical Journal, 27, 379-423.
Simorangkir, R. A. (2009). Study of Habitat and Estimation of Orangutan Population (Pongo abelii) in the Batangtoru Forest Area, North Sumatra. Thesis (unpublished). Bogor : Bogor Agricultural Institute.
Sinaga, T. (1992). Study of orangutan habitat and behavior (Pongo abelii) in Bohorok Gunung Leuser National Park. Thesis (unpublished). Bogor : Bogor Agricultural Institute.
Strubelt, I., Diekmann, M., Peppler-Lisbach, C., Gerken, A., & Zacharias, D. (2019). Vegetation changes in the Hasbruch forest nature reserve (NW Germany) depend on management and habitat type. Forest Ecology and Management, 444, 78-88. https://doi.org/10.1016/j.foreco.2019.04.030
Sugardjito, J., te Boekhorst. I. J. A., & van Hooff, J. A. R. A. M. (1987). Ecological constraints on the grouping of wild orangutans (Pongo pygmaeus) in the Gunung Leuser National Park, Sumatra, Indonesia. International Journal of Primatology, 8, 17-41. https://doi.org/10.1007/BF02737112
Tabares, X., Mapani, B., Blaum, N., & Herzschuh, U. (2018). Composition and diversity of vegetation and pollen spectra along gradients of grazing intensity and precipitation in southern Africa. Review of Palaeobotany and Palynology, 253, 88-100. https://doi.org/10.1016/ j.revpalbo.2018.04.004
Templeton, L. K, Neel, M. C., Groffman, P. M., Cadenasso, M. L., & Sullivan, J. H. (2019). Changes in vegetation structure and composition of urban and rural forest patches in Baltimore from 1998 to 2015. Forest Ecology and Management, 454. https://doi.org/10.1016/j.foreco.2019.117665
Tscharntke, T., Tylianakis, J. M., Rand, T. A., Didham, R.K., Fahrig, L., Batáry, P.,…… & Westphal, C. (2012). Landscape moderation of biodiversity patterns and processes - eight hypotheses. Biological reviews of the Cambridge Philosophical Society, 87, 661-685. https://doi.org/10.1111/j.1469-185X.2011.00216.x
Tsujino, R., Yumoto, T., Kitamura, S., Djamaluddin, I., & Darnaedi, D. (2016). History of forest loss and degradation in Indonesia. Land Use Policy, 57, 335-347. https://doi.org/10.1016/j.landusepol.2016.05.034
Uddin, M.M., Ahsan, M.F., & Lingfeng, H. (2020). Human-Primates Conflict In Bangladesh: A Review. The Journal of Animal & Plant Science, 30(2), 280-287. https://doi.org/10.36899/JAPS.2020.2.0055
van Casteren, A., Sellers, W.I., Thorpe, S.K.S., Coward, S., Crompton, R.H., Myatt, J.P., & Ennos, A.R. (2012). Nest-building orangutans demonstrate engineering know-how to produce safe, comfortable beds. Proceedings of the National Academy of Sciences, 109: 6873–6877.
Vesco, P., Dasgupta, S., De Cian, E., & Carraro, C. (2020). Natural resources and conflict: A meta-analysis of the empirical literature. Ecological Economics, 172. https://doi:10.1016/j.ecolecon.2020.106633
Wich, S. A., Fredriksson, G. M., Usher, G., Peters, H. H., Priatna, D., Basalamah, F., ,….., & Kühl, H. (2012). Hunting of Sumatran orang-utans and its importance in determining distribution and density. Biological Conservation, 146, 163-169. https://doi.org/10.1016/j.biocon.2011.12.006
Wich, S. A, Usher, G., Peters, H. H., Khakim, M. F. R, Nowak, M. G., & Fredriksson, G.M. (2014). Preliminary data on the highland Sumatran orangutan (Pongo abelii) of Batang Toru. In NB Grow et al. (eds.). High altitude primates, development in primatology: progress and perspective. Springer Science+Business Media, 265-283.
Wich, S. A, Singleton, I., Nowak, M. G., Atmoko, S. S. U., Nisam, G., Arif, S. M., …….., & Kühl, H. S. (2016). Land cover changes predict steep declines for the Sumatran orangutan (Pongo abelii). Science Advance, 2(3), e1500789. https://doi.org/10.1126/sciadv.1500789
Willie, J., Petre, C. A. Tagg, N., & Lens, L. (2012). Evaluation of species richness estimators based on quantitative performance measures and sensitivity to patchiness and sample grain size. Acta Oecologica, 45, 31-41. https://doi.org/10.1016/j.actao.2012.08.004.
Willis, K. J., Jeffers, E. S., & Tovar, C. (2018). What makes a terrestrial ecosystem resilient? A complex set of biotic and abiotic factors determines the resilience of an ecosystem. Science, 359, 988-989. https://doi.org/10.1126/science.aar5439
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