Abstract
Biodiversity conservation is one of the important ecosystem services that has been negatively impacted by anthropogenic activities. Natural forests (NF) harbor some of the highest species diversity around the world. However, deforestation and degradation have resulted in reduced forest land cover and loss of diversity. Homegarden agroforestry (AF) systems have been proven to be an intermediary for biodiversity conservation. In this study, we evaluate the effectiveness of home garden AF practices to conserve tree species diversity in Bangladesh and compare them with tree species diversity in NF. A total of nine locations were selected for this synthesis from published literature which comprised of five AF sites and four NFs. Shannon–Weiner Diversity Index (H) was similar for home-garden AF (3.50) and NF (2.99), with no statistical difference between them. Based on non-metric multi-dimensional scaling (NMDS) ordination analysis, the AF and NF plots showed distinct separation. However, Bray–Curtis dissimilarity index ranged from 0.95 to 0.70 indicating nearly no overlap in species composition to significant overlap between AF and NF. Based on our results, we conclude that AF can serve as an important ecological tool in conserving tree species diversity, particularly on landscapes where NF fragments represent only a small fraction of the total land area. Creating and maintaining AF habitats in such human dominated landscapes should be part of the biodiversity conservation strategy.
References
Abdoellah OS, Hadikusumah HY, Takeuchi K, Okubo S, Parikesit (2006) Commercialization of homegardens in an Indonesian village: vegetation composition and functional changes. Agrofor Syst 68:1–13
Acharya KP (2006) Linking trees on farms with biodiversity conservation in subsistence farming systems in Nepal. Biodivers Conserv 15:631–646
Ahmed MFU, Rahman SML (2004) Profile and use of multi-species tree crops in the homesteads of Gazipur District, Central Bangladesh. J Sustain Agric 24(1):81–93
Alam MS, Masum KM (2005) Status of homestead biodiversity in the offshore island of Bangladesh. Res J Agric Biol Sci 1(3):246–253
Alamgir M, Al-Amin M (2008) Allometric models to estimate biomass organic carbon stock in forest vegetation. J For Res 19(2):101–106
Alavalapati JRR, Shrestha RK, Stainback GA, Matta JR (2004) Agroforestry development: an environmental economic perspective. Agrofor Syst 61:299–310
Albuquerque UP, Andrade LHC, Caballero J (2005) Structure and floristics of homegardens in Northeastern Brazil. J Arid Environ 62:491–506
Anand MO, Krishnaswamy J, Kumar A, Bali A (2010) Sustaining biodiversity conservation in human-modified landscapes in the Western Ghats: remnant forests matter. Biol Conserv 143(2010):2363–2374
Appanah S, Ratnam L (1992) The importance of forest biodiversity to developing countries and Asia. J Trop For Sci 5(2):201–215
Beaumont LJ, Pitman A, Perkins S, Zimmermann NE, Yoccoz NG, Thuiller W (2011) Impacts of climate change on the world’s most exceptional ecoregions. PNAS 108:2306–2311
Bengtsson J, Nilsson SG, Franc A, Menozzi P (2000) Biodiversity, disturbances, ecosystem function and management of European forests. For Ecol Manag 132:39–50
Bhagwat SA, Willis KJ, Birks HJB, Whittaker RJ (2008) Agroforestry: a refuge for tropical biodiversity. Trends Ecol Evol 23:261–267
Borkhataria RR (2012) Species abundance and potential biological control services in shade vs. sun coffee in Puerto Rico. Agric Ecosyst Environ 151:1–5
Bray JR, Curtis JT (1957) An ordination of the upland forest communities of southern Wisconson. Ecol Monogr 27(4):325–349
Chiarucci A, Bacaro G, Scheiner SM (2011) Old and new challenges in using species diversity for assessing biodiversity. Phil Trans R Soc B 366:98–109
Gardner TA, Barlow J, Chazdon RL, Ewers R, Harvey CA, Sodhi N (2009) Prospects for tropical forest biodiversity in a human-modified world. Ecol Lett 12:561–582
Garrity DP (2004) Agroforestry and the achievement of the millennium development goals. Agrofor Syst 61:5–17
Gibson L, Tien L, Ming K, Lian P, Brook BW et al (2011) Primary forests are irreplaceable for sustaining tropical biodiversity. Nature 478:378–381
Hackl E, Zechmeister-Boltenstern S, Bodrossy L, Sessitsch A (2004) Comparison of diversities and compositions of bacterial populations inhabiting natural forest soils. Appl Environ Microbiol 70:5057–5065
Harvey CA, Gonza′lez Villalobos JA (2007) Agroforestry systems conserve species-rich but modified assemblages of tropical birds and bats. Biodivers Conserv 16:2257–2292
Hemp A (2006) The banana forests of Kilimanjaro: biodiversity and conservation of the Chagga homegardens. Biodivers Conserv 15:1193–1217
IAASTD (2008) International Assessment of Agricultural Knowledge, Science and Technology for Development: executive summary of the synthesis report, http://www.agassessment.org/index.cfm?Page=About_IAASTD&ItemID=2. Accessed 2 March 2012
Jose S (2009) Agroforestry for ecosystem services and environmental benefits: an overview. Agrofor Syst 76:1–10
Jose S (2011) Managing native and non-native plants in agroforestry systems. Agrofor Syst 83:101–105
Kabir ME, Webb EL (2009) Household and homegarden characteristics in southwestern Bangladesh. Agrofor Syst 75:129–145
Krebs CJ (1985) Ecology: the experimental analysis of distribution and abundance. Harper and Row, New York
Kumar BM (2011) Species richness and aboveground carbon stocks in the homegardens of central Kerala, India. Agric Ecosyst Environ 140:430–440
Maroyi A (2009) Traditional homegardens and rural livelihoods in Nhema, Zimbabwe: a sustainable agroforestry system. Int J Sustain Dev World Ecol 16:1–8
McCune B, Mefford MJ (2011) PC-ORD for windows: multivariate analysis of ecological data, 6th edn. MjM Software, Gleneden Beach
Mendez VE, Lok R, Somarriba E (2001) Interdisciplinary analysis of homegardens in Nicaragua: micro-zonation, plant use and socioeconomic importance. Agrofor Syst 51:85–96
Millennium Ecosystem Assessment (2005) Ecosystems and human well-being: biodiversity synthesis. World Resources Institute, Washington, DC. http://www.millenniumassessment.org/documents/document.354.aspx.pdf. Accessed 2 March 2012
Momen RU, Huda SMS, Hossain MK, Khan BM (2006) Economics of the plant species used in homestead agroforestry on an offshore sandwip Island of Chittagong District. Bangladesh J For Res 17(4):285–288
Motiur RM, Tsukamoto J, Furukawa Y, Shibayama Z, Kawata I (2005) Quantitative stand structure of woody components of homestead forests and its implications on silvicultural management: a case study in Sylhet Sadar, Bangladesh. J For Res 10:285–294
Muzaffar SB et al (2011) The endangered forests of Bangladesh: why the process of implementation of the convention on biological diversity is not working. Biodivers Conserv 20:1587–1601
Saha N, Azam MA (2004) The indigenous hill-farming system of Khasia Tribes in Moulvibazar District of Bangladesh: status and impacts. Small scale For Econ Manag Policy 3(2):273–281
Thevathasan NV, Gordon AM (2004) Ecology of tree intercropping systems in the North temperate region: experience from southern Ontario, Canada. Agrofor Syst 61:257–268
Ullah MR, Al-Amin M (2008) Natural Forest of Bangladesh with changing climate. Institute of Forestry and Environmental Sciences, Chittagong University, Bangladesh. http://www.forestrynepal.org/article/946/3677. Accessed 2 March 2012
Zaman S, Siddiquee SU, Katoh M (2010) Structure and diversity of homegarden agroforestry in Thakurgaon District, Bangladesh. Open For Sci J 3:38–44
Acknowledgments
S. Jose acknowledges the Fulbright Scholar Award from the Fulbright Program, United States Department of State, Bureau of Educational and Cultural Affairs, that provided partial financial support for this study. Logistical support was provided by the Independent University of Bangladesh.
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Bardhan, S., Jose, S., Biswas, S. et al. Homegarden agroforestry systems: an intermediary for biodiversity conservation in Bangladesh. Agroforest Syst 85, 29–34 (2012). https://doi.org/10.1007/s10457-012-9515-7
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DOI: https://doi.org/10.1007/s10457-012-9515-7