Loss Biodiversity and Ecosystem Services: need for ecological concepts towards sustainable biodiversity management Retno Peni Sancayaningsih* and Suharsono** *Faculty of Biology, Gadjah Mada University, Yogyakarta. **Center of Oceanography Research, LIPI, Jakarta, Indonesia. contact address: retpeni@ugm.ac.id; retpeni@yahoo.com ABSTRACT Biodiversity is one out of five aspects reccommended by UNESCO in the strategy of sustainable development that we should pay more attention. This covers not only on genetic and species biodiversities, but also on ecosystem biodiversity. Indonesia is one of 8 centers of biodiversity that located in the tropics. Understanding biotic potential of species biodiversity, (bio)-technological and leader-interpreuneurship skills on a certain species may become success keys for improving our commodities in all aspects of health, agriculture, live-stock etc. But gradually, global climate change, inbalanced development, and mismanagement of natural resources may reduce Indonesian mega-biodiversity in land, as well as in aquatic habitats. These degradations happenned mainly because of neglection of the authority, or inadecuate information and education received by the whole society. Through contextual education on ecological basic concepts related to over-harvesting problem (ecosystem, limiting factor, biotic potential, productivity, carrying capacity and conservation), with casebased (SCL) or problem-based learning (PBL) approaches, may change authority mindset towards sustainable development. This furtherly leads or influences the society to become more respect to their sustainable environments/ecosystems and act better as part of the system. Keywords: biodiversity, sustainable, biotic potential, SCL, PBL Biodiversity and Process of being Diverse Biodiversity is one out of five aspects reccommended by UNESCO in the strategy of sustainable development that we should pay more attention (UNESCO, 2005; Alsaid, 2009). Biodiversity is a unity and interaction between diversity of genetic, species, and ecosystem within a specific area and in a certain time (Castri and Younes, 1996 in Sastrapradja, 2010). Asia Pasific RCE-Conference, RCE-Yogyakarta, Indonesia, 12-15th January 2011 1 Biodiversity is similar as species richness for common people, but diversity of ecosystem and diversity of genetics are rarely understood, especially for people who has no background on biology, or ecology. Loss of genetic biodiversity (germplasm) that occur along with adaptation of organism toward a shifting habitat quality may happen naturally or human carelessly, due to their lacks of comprehensive knowledge about germplasm importance. Variation within a species may happen due to evolution process in a population within a period of time. Adaptation of organisms to their environment that varies highly and their habitat isolation for a certain period of time accelerate evolution process. Presence of other species in a certain ecosystem may happen due to four reasons: resource saturation, resource availability, share resource, and niche specialization (Brewer, 1993). Succession process then follows the development and maturity of an ecosystem. These all process create biodiversity of species in an area, and depending on the frequencies of the environmental changes, the more frequent changes result the more diverse species. Therefore, center for biodiversity of Flora and Fauna is mostly found in the tropics area. Species biodiversity both in land and aquatic habitat in Indonesia is the main source for food, whether it was cultured or incultured. In terms of total biota, Indonesia is at the third position of world’s rank after Brazil and Colombia (Supriatna, 2008), and in term of biodiversity of plant species, Indonesia is one out of 8 centers of plant species of origin that located in the tropics (Sastrapradja, 2010). There are 66 endemic fauna species that have been protected in Indonesia from Sumatra island up to Papua island, since Indonesia archipelago lies on two important lines, Weber and Wallacea line, that separates between australian and asian flora and fauna types (Fig.1.). Species richness of fauna found in Indonesia is predicted about 165 mammals, 397 birds, 150 reptiles, and 100 amphibia species (Alamendah.Blog. 2009). Asia Pasific RCE-Conference, RCE-Yogyakarta, Indonesia, 12-15th January 2011 2 Figure 1. Indonesia’s Unique Fauna in some protected areas (adopted from Supriatna) In terms of flora richness, Indonesia is the fifth’s world rank with 30 – 35 thousands plant species. Among these species, six family of vascular plants (Arecaceae, Orchydaceae, Nephentaceae, Cyatheaceae, Dipterocarpaceae, and Thymelaeaceae) are classified as protected family (ibis.biologi.lipi.go.id). Orchidaceae, the protected family and the highest diversity in Indonesia, has 5000 to 6000 species out of 26 thousand world’s species. Twenty nine of this is considered as endangered species and subject for conservation (ibis.biologi.lipi. go.id). Data of marine biota richness in Indonesia in 1993 was 20 thousands of fish species, 8500 species of Mollusc, and 1800 species of seaweed (BAPI, 1993 in Sastrapradja, 2010). World’s fish richness recorded in 1993 was 19,000 species (Sastrapradja, 2010), among those, 706 species are commercial commodities. Updated data in Indonesia lately reported that there were only 2500 Mollusc, more than 2500 fish, and 1500 shrimp species (Alamendah.Blog, 2009). Data on coral richness, Indonesia has more than 67% of world coral richness, with 88 genera out of 109 world coral genera (Table 1.), unfortunately it is Asia Pasific RCE-Conference, RCE-Yogyakarta, Indonesia, 12-15th January 2011 3 only 31% of coral ecosystem is healthy (Suharsono, 2010). Distribution of coral reef ecosystem is presented in Fig. 2. Table 1. Indonesian Center for Coral Diversity Indonesia World Number of Coral species 590 880 Number of Coral genus 82 109 Number of Acropora 91 113 Number of Fungiid 40 40 (Suharsono, 2010) Figure 2. Coral genera distribution in Indonesia Potential Loss of Biodiversity In Indonesia, one third of protein consumption source is fulfilled from the marine resource, and 90% of this is supplied by fisherman. Food resource from marine is collected by fisherman daily from the ocean, without any scientific consideration on ecological wisdom. Among those marine resources, biodiversity of fish, shrimp, squid, sponge, and seaweed has higher economic value. Higher demand of these commodities makes fisherman Asia Pasific RCE-Conference, RCE-Yogyakarta, Indonesia, 12-15th January 2011 4 to catch more from the ocean. But gradually, global climate change, inbalanced development, and mismanagement of natural resources may reduce Indonesian mega-biodiversity in land, as well as in aquatic habitats. These degradations happenned mainly because of overharvesting of marine resources by the fisherman, and also neglection of the authority to plan marine ecosystem and to set the sustainable yields of marine commodity. Primary data collected from Depok, southern coast of Yogyakarta, there are 10 to 15 species of fish and shrimp catched everyday both from northern and southern coast of Java island, with various fish size. This indicates that there is no agreement (wisdom) among fisherman about the ideal size of fish can be catched. They don’t understand of fish stock and concept of harvest quota. Besides, mentality of fisherman is different from farmer’s mentality, whom understand better about productivity and cultivation process. If adequate information and basic education about sustainable yields and harvest quota received by fisherman, therefore the loss of biodiversity decelerates. Sustainability of Biodiversity Management Biodiversity covers not only on genetic and species biodiversities, but also on ecosystem biodiversity. Indonesia is one of 8 centers of biodiversity that located in the tropics (Sastrapradja, 2010). Ecologically, in situ conservation of an exotic species is an ecosystem maintenance itself, including basic principles of organism’s growth in the community,its position among other organisms, and its correlation to the environments in one system. Therefore, rescuing biodiversity loss of marine biota is actually a restoration of mangrove, coral reef, and seaweed ecosystems. Sustainability concepts in development was first introduced when Brundlandt wrote “Our Common Future” in 1987, which was stressed more on the balance development between generations. This spirit was continued by highlighted social equity in development Asia Pasific RCE-Conference, RCE-Yogyakarta, Indonesia, 12-15th January 2011 5 with respect to carrying capacity (Daly, 1996) and an ecosystem approach (Rist, 1999), and summarized up to moral approach (Hattingh, 2002) to change community mindset to overcome environmental problems (Blewitt & Cullingford, 2004). Understanding about the biotic potential of resource species, such as: maturity age, productivity, survival rate and survival type, and an intrinsic rate of natural increase (Brewer, 1993) is very important to predict the biomass of actual livestock and to determine species quota. Once the biotic potential of a species is revealed, it becomes easier to manage and to culture, the only way to conserve the species. The population dynamic becomes more complicated when position of each species in the food-chain or foodweb in the community is considered. Therefore quota determination is one instrument for sustainable resource management should be published for every species that has highly economic potential (Suharsono, 2010). Through contextual education on ecological basic concepts related to over-harvesting problem (ecosystem, limiting factor, biotic potential, productivity, carrying capacity and conservation), with case-based or problem-based learning approaches, may change authority mindset towards sustainable development. This furtherly lead or influence the society to become more respect to their sustainable environments/ecosystems and act better as part of the system. Asia Pasific RCE-Conference, RCE-Yogyakarta, Indonesia, 12-15th January 2011 6 References Alamendah.blog., http://alamendah.wordpress.com. Open October 2010 Alsaid, A. 2009. Education for Sustainable Development. Workshop on Sustainable Development. LPPM-UGM, Yogyakarta 26-27 May 2009. Blewitt, J. and C. Cullingford. 2004. The Sustainability Curriculum : The Challenge for Higher Education. Earthscan. London. UK. Brewer, R. 1993. The Science of Ecology. 2 nd edition. Saunders College Publishing, NY. pp 296-300 Indonesian Biodiversity Information System. 2010. http://ibis.biologi.lipi.go.id/ open October 2010 Sancayaningsih, R.P. 2009. Integrasi Konsep EfSD Dalam Pembelajaran Ilmu Lingkungan di Fakultas Biologi UGM , Seminar Nasional Biologi, 4 Juli 2009, Fakultas MIPA, UNY Yogyakarta. Sancayaningsih, R.P. 2010. Pemaknaan Pembelajaran Berbasis ESD Sebagai Upaya Keberlanjutan Kurikulum Program Pasca Biologi, Seminar Pasca Sarjana, Fakultas Biologi UGM. Sastrapradja, S.D. 2010. Memupuk Kehidupan di Nusantara: Memanfaatkan Keanekaragaman Indonesia. Yayasan Pustaka Obor Indonesia, Jakarta Indonesia. Suharsono, 2010. Perspektif Biologi dalam Pengelolaan Sumberdaya Hayati Berkelanjutan. Pidato Ilmiah dalam rangka Lustrum XI, Fakultas Biologi UGM, 27 September 2010. Supriatna, Y. 2008. 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