References
- Alewell C, Bebi P. 2011. Forest development in the European Alps and potential consequences on hydrological regime. In: Bredemeier M, Cohen S, Godbold DL, Lode E, Pichler V, Schleppi P. (eds), Forest management and the water cycle. Switzerland: Springer Dordrecht. pp 112-119. https://link.springer.com/book/10.1007978-90-481-9834-4
- Anadón JD, Salab OE, Turner II BL, Bennettf EM. 2014. Effect of woody-plant encroachment on livestock production in North and South America. PNAS 111: 12. https://www.pnas.org/doi/full/10.1073pnas.1320585111
- Angassa A, Baars RMT. 2000. Ecological condition of encroached and non-encroached rangelands in Borana, Ethiopia. African Journal of Ecology 38: 321–329 https://onlinelibrary.wiley.com/doi/10.1046j.1365-2028.2000.00250.x
- Angassa A, Oba G. 2007. Relating long-term rainfall variability to cattle population dynamics in communal rangelands and government ranch in southern Ethiopia. Agricultural Systems 94:715-725 https://www.sciencedirect.com/science/article/abs/pii/S0308521X07000431?via%3Dihub
- Angassa A, Oba G. 2008a. Effects of management and time on mechanisms of bush encroachment in southern Ethiopia. African Journal of Ecology 46:186-196: https://onlinelibrary.wiley.com/doi/10.1111j.1365-2028.2007.00832.x
- Angassa A, Oba G. 2008b. Herder perceptions on impacts of range enclosures, crop farming, fire ban and bush encroachment on the rangelands of Borana, southern Ethiopia. Human Ecology 36: 201–215. https://doi.org/10.1007/s10745-007-9156-z
- Angassa A, Oba G. 2009. Bush encroachment control demonstrations in southern Ethiopia: Woody species survival strategies with implications for herder land management. African Journal of Ecology 47:63–76. https://onlinelibrary.wiley.com/doi/10.1111j.1365-2028.2007.00919.x
- Anthelme AF, Grossi J, Brun J, Didier L. 2001. Consequences of green alder expansion on vegetation changes and arthropod communities’ removal in the northern French Alps. Forest Ecology and Management 145: 57–65 https://www.sciencedirect.com/science/article/abs/pii/S0378112700005740
- Archer SR, Andersen EM, Predick KI, Schwinning S, Steidl RJ, Woods SR. 2017. Woody plant encroachment: causes and consequences. In: Briske DD (ed), Rangeland systems: processes, management, and challenges. Switzerland: Springer International. pp. 25–84. https://doi.org/10.1007/978-3-319-46709-2_2
- Archer S, Boutton TW, Hibbard KA. 2001. Trees in grasslands: biogeochemical consequences of woody plant expansion. In: Schulze ED, Harrison SP, Heimann M, Holland EA, Lloyd J (eds), Global biogeochemical cycles in the climate systems. San Diego: Academic Press. PP 115-1337 https://www.sciencedirect.com/science/article/abs/pii/B978012631260750011X?via%3Dihub
- Ayele G, Hayicho H, Alemu M. 2019. Land use land cover change detection and deforestation modeling in Delomena district of Bale zone, Ethiopia. Journal of Environmental Protection 10:532–561 https://www.scirp.org/journal/paperinformation?paperid=91702
- Belay TA, Totland Ø, Moe SR. 2013. Ecosystem responses to woody plant encroachment in a semiarid savanna rangeland. Plant Ecology 214: 1211–1222. https://doi.org/10.1007/s11258-013-0245-3
- Blench RM. 2001. Pastoralism in the new millennium. FAO: Animal Health and Production Series, No 150. Cambridge: Food and Agriculture Organisation of the United Nations
- Boon RGC and Van Wyk A. 2023. A new species of Phyllogeiton (Rhamnaceae: Rhamneae) from Maputaland, South Africa. Phytotaxa 585: 193–209. https://www.biotaxa.org/Phytotaxa/article/view/phytotaxa.585.3.2
- Bowman DMJS, Walsh A, Milne DJ. 2001. Forest expansion and grassland contraction within a Eucalyptus savanna matrix between 1941 and 1994 at Litchfield National Park in the Australian monsoon tropics. Global Ecology and Biogeography 10: 535-548. https://onlinelibrary.wiley.com/doi/abs/10.1046j.1466-822X.2001.00252.x
- Bussa B, Shibru S. 2020. Effects of Sickle bush (Dichrostachys cinerea (L.) Wight and Arn.) shrub encroachment on floristic and vegetation structure in semi-arid savannah of Southern Ethiopia. Journal of Environment and Earth Science 8: 1–8. https://doi.org/10.7176/JEES/10-8-01
- Central Statistical Agency (CSA). 2022. Projected population of Dallo Manna district of Bale zone, Oromia regional state, Ethiopia. Addis Ababa https://www.statsethiopia.gov.et/wp-content/uploads/2019/05/ICPS-Population-Projection-2007-2037-produced-in-2012.pdf
- Clobert J, Le Galliard JF, Cote J, Meylan S, Massot M. 2009. Informed dispersal, heterogeneity in animal dispersal syndromes and the dynamics of spatially structured populations. Ecology Letters 12: 197–209. https://doi.org/10.1111/j.1461-0248.2008.01267.x
- Coppock DL. 1994. The Borana plateau of southern Ethiopia: synthesis of pastoral research, development, and change, 1980-91 (Systems Study No. 5). Addis Ababa: International Livestock Center for Africa (ILCA), pp. 393.
- Dalle G, Maass BL, Isselstein J. 2005. Plant communities and their species diversity in the semi-arid rangelands of Borana lowlands, southern Oromia, Ethiopia. Community Ecology 6: 167-176. https://akjournals.com/view/journals/168/6/2/article-p167.xml
- Dalle G, Maass BL, Isselstein J. 2006. Encroachment of woody plants and its impact on pastoral livestock production in the Borana lowlands, southern Oromia, Ethiopia. African Journal of Ecology 44: 237-246. https://onlinelibrary.wiley.com/doi/10.1111j.1365-2028.2006.00638.x
- Davis DK. 2005. Indigenous knowledge and the desertification debate: problematizing expert knowledge in North Africa. Geoforum 36: 509-524. https://www.sciencedirect.com/science/article/abs/pii/S0016718504001150?via%3Dihub
- Degefa K, Hailu Feyisa H, Tadese A. 2023. Assessment of irrigated wheat production in western Oromia, Ethiopia: The case constraints and Swot analysis. Trends in Agricultural Economics 16: 1-12. https://scialert.net/abstract/?doi=tae.2023.1.12
- Diallo BO, Mckey D, Chevallier MH , Joly HI, Hossaert-Mckey M. 2008. Breeding system and pollination biology of the semi domesticated fruit tree, Tamarindus indica L. (Leguminosae: Caesalpinioideae): Implications for fruit production, selective breeding, and conservation of genetic resources. African Journal of Biotechnology 7: 4068-4075. https://www.ajol.info/index.php/ajb/article/view/59515
- Dika G, Tolossa D, Eyana SM. 2022. Rangeland degradation and its impacts post-1992: Constructing the perceptions of Borana pastoralist, Southern Ethiopia. International Journal of Ecology 2022: 1-14. https://www.hindawi.com/journals/ijecol/2022/7978744
- Dionisio LFS, Schwartz G, Lopes JC, Oliveira FA. 2018. Growth, mortality, and recruitment of tree species in an Amazonian rainforest over 13 years of reduced impact logging. Forest Ecology and Management 430: 150-156. https://www.sciencedirect.com/science/article/abs/pii/S0378112718308788?via%3Dihub
- DMDAO (Dallo Manna District Agriculture Office). 2020. Socio-economic baseline survey. Dallo Manna, Bale zone, Oromia regional state, Ethiopia. Dallo Manna, Ethiopia.
- Dohn J, Augustine DJ, Hanan NP, Ratnam J, Sankaran M. 2016. Spatial vegetation patterns and neighborhood competition among woody plants in an east African savanna. Ecology 98: 478-488. https://esajournals.onlinelibrary.wiley.com/doi/10.1002ecy.1659
- Edwards S, Tadesse M , Hedberg I. 1995. Flora of Ethiopia and Eritrea (Vol. 2. Part 2). The National Herbarium of Ethiopia, Addis Ababa and Uppsala University, Uppsala.
- Ellis JE, Swift DM. 1988. Stability of African pastoral ecosystems: alternate paradigms and implications for development. Journal of Range Management 41: 450–459. https://www.jstor.org/stable/3899515?origin=crossref
- Epstein G, Vogt JM, Mincey SK, Cox M, Fischer BC. 2013. Missing ecology: integrating ecological perspectives with the socialecological system framework. International Journal of the Commons 7: 432-453. https://www.jstor.org/stable/26523137
- Food and Agricultural Organisation (FAO). 2021. Application of the participatory rangeland and grassland assessment (praga) methodology in Kyrgyzstan. Rome: FAO. https://www.google.com.et/books/edition/Application_of_the_participatory_rangela/qmewEAAAQBAJ?hl=en&gbpv=0
- Freléchoux F, Meisser M, Gillet F. 2007. Secondary succession and loss in plant diversity following a grazing decrease in a wooded pasture of the central Swiss Alps. Botanica Helvetica 117: 37– 56. https://doi.org/10.1007/s00035-007-0791-1
- Friis I, Demissew S, van Breugel P. 2010. The atlas of potential vegetation of Ethiopia. Copenhagen: Royal Academy of Science and Letters. https://www.researchgate.net/publication/262672568_Atlas_of_the_Potential_Vegetation_of_Ethiopia
- Gartzia M, Alados CL, Pérez-Cabello F. 2014. Assessment of the effects of biophysical and anthropogenic factors on woody plant encroachment in dense and sparse mountain grasslands based on remote sensing data. Progress in Physical Geography 38: 201–218. https://journals.sagepub.com/doi/10.11770309133314524429
- Geng Y, Xiang K, Zhang C, Zhao X. 2023. Driving mechanisms of productivity stability vary with selective harvesting intensities in a mixed broad-leaved Korean pine forest. Annals of Forest Science 80: 31. https://link.springer.com/article/10.1186s13595-023-01199-3
- Granzow-de la Cerda P, Lloret F, Ruiz JE, Vandermeer JV. 2012. Tree mortality following ENSO-associated fires and drought in lowland rain forests of eastern Nicaragua. Forest Ecology and Management 265: 248–257. https://www.sciencedirect.com/science/article/abs/pii/S0378112711006578?via%3Dihub
- Harrington MG, Gadek PA. 2009. A species well travelled – the Dodonaea viscosa (Sapindaceae) complex based on phylogenetic analyses of nuclear ribosomal ITS and ETSf sequences. Journal of Biogeography 36: 2313-2323. https://onlinelibrary.wiley.com/doi/abs/10.1111j.1365-2699.2009.02176.x
- Hall JS, Harris DJ, Medjibe V, Ashton PMS. 2003. The effects of selective logging on forest structure and tree species composition in a central African forest: implications for management of conservation areas. Forest Ecology and Management 183: 249-264. https://www.sciencedirect.com/science/article/abs/pii/S0378112703001075
- Hedberg I, Edwards S, Nemomissa S. 2003. Flora of Ethiopia and Eritrea (Vol. 4, Part 1). The National Herbarium of Ethiopia, Addis Ababa and Uppsala University, Uppsala.
- Hedberg I, Edwards S. 2009. Flora of Ethiopia and Eritrea (Vol. 3). The National Herbarium of Ethiopia, Addis Ababa and Uppsala University, Uppsala.
- Hidasi-Neto J, Joner DC, Resende F, de Macedo Monteiro L, Faleiro FV, Loyola RD, Cianciaruso MV. 2019. Climate change will drive mammal species loss and biotic homogenization in the Cerrado Biodiversity Hotspot. Perspectives in Ecology and Conservation 17: 57-63. https://www.sciencedirect.com/science/article/pii/S2530064418301378
- Homann S, Rischkowsky B, Steinbach J. 2008. The effect of development interventions on the use of indigenous range management strategies in the Borana low lands in Ethiopia. Land Degradation and Development 19: 368-387. https://onlinelibrary.wiley.com/doi/abs/10.1002ldr.845
- Huxman TE, Wilcox BP, Breshears DD, Scott R, Snyder KA, Small EE, Hultine K, Pockman WT, Jackson RB. 2005. Ecohydrological implications of woody plant encroachment. Ecology 86:308–319. https://esajournals.onlinelibrary.wiley.com/doi/abs/10.189003-0583
- Inague GM, Zwiener VP, Marques MCM. 2021. Climate change threatens the woody plant taxonomic and functional diversities of the Restinga vegetation in Brazil. Perspectives in Ecology and Conservation 19: 53–60. https://www.sciencedirect.com/science/article/pii/S2530064420300845
- Israel GD. 1992. Determining sample size. Gainesville: University of Florida cooperative extension service, Institute of Food and Agriculture Sciences.
- Jenet A, Buono N, Di Lello S, Gomarasca M, Heine C, et al. 2016. The path to greener pastureS. Pastoralism, the backbone of the world’s drylands. Brussels: Vétérinaires Sans Frontières International (VSF-International). Technical Report.
- Joubert DF, Rothauge A, Smit GN. 2008. A conceptual model of vegetation dynamics in the semiarid Highland savanna of Namibia, with particular reference to bush thickening by Acacia mellifera. Journal of Arid Environments 72: 2201–2210. https://www.sciencedirect.com/science/article/abs/pii/S0140196308001900
- Kebede S, Tessema ZK, Urge M, Alebachew M, Ebro A. 2020. Impact of bush encroachment on livestock production and pastoral livelihoods in Fentale district, eastern Ethiopia. Sustainable Agriculture Research 9: 56–66. https://doi.org/10.5539/sar.v9n4p56
- Kedu A. 2019. Causes and effects of rangeland degradation in the lowland districts of the Bale eco-region, southeastern Ethiopia. Journal of Rangeland Science 9: 259–276. https://journals.iau.ir/article_545266_89d76acc11440b2d19d44ca81d8d8090.pdf
- Kessler A, Stroosnijder L. 2010. Debating land degradation: Strategy development for Bolivian Mountain Valleys. Land Degradation and Development 21: 480–483. https://doi.org/10.1002/ldr.986
- Khan SA, Shakoor A, Mahmood T. 2021. Revisiting the role of local knowledge in natural resource management. Elementary Education Online 20: 1806–1815. https://doi.org/10.17051/ilkonline.2021.02.198
- Knapp AK, Briggs JM, Collins SL, Archer SR, Bret-Harte MS, et al. 2008. Shrub encroachment in North American grasslands: shifts in growth form dominance rapidly alters control of ecosystem carbon inputs. Global Change Biology 14: 615–623. https://doi.org/10.1111/j.1365-2486.2007.01512.x
- Kuechly HU, Mueller JS, Reinfelder VL, Wiedemann S and Blaum N. 2010. Rodent-mediated dispersal of Acacia seeds in Kalahari savannah rangelands – implications for bush encroachment. African Journal of Ecology 49: 119–121. https://scholar.google.com/scholar?hl=en&as_sdt=0%2C5&q=Kuechly+et+al.+2010&btnG=
- Kulmatiski A., Beard, KH. 2013. Woody plant encroachment facilitated by increased precipitation intensity. Nature Climate Change 3: 833–837. https://www.nature.com/articles/nclimate1904
- Leopold A. 1949. Sand county almanac and sketches here and there. New York: Oxford University Press.
- Leopold A. 2013. A sand county almanac and other writings on ecology and conservation (edited by Meine C). New York: Library of America.
- Lett MS, Knapp AK. 2005. Woody plant encroachment and removal in mesic grassland: production and composition responses of herbaceous vegetation. The American Midland Naturalist 153: 217–231. https://bioone.org/journals/the-americanmidland-naturalist/volume-153/issue-2
- Liao C, Clark PE, DeGloria SD. 2018. Bush encroachment dynamics and rangeland management implications in southern Ethiopia. Ecology and Evolution 8: 11694-11703. https://onlinelibrary.wiley.com/doi/full/10.1002ece3.4621
- Maphanga T, Dube T, Shoko C, Sibanda M. 2022. Advancements in the satellite sensing of the impacts of climate and variability on bush encroachment in savannah rangelands. remote sensing applications: Society and Environment 25: 100689. https://www.sciencedirect.com/science/article/abs/pii/S2352938521002251?via%3Dihub
- Maroyi A. 2011. An ethnobotanical survey of medicinal plants used by the people in Nhema communal area, Zimbabwe. Journal of Ethnopharmacology 136:347-354. https://www.sciencedirect.com/science/article/abs/pii/S0378874111003229
- McKinley DC, Rice CW, Blair JM. 2008. Conversion of grassland to coniferous woodland has limited effects on soil nitrogen cycle processes. Soil Biology and Biochemistry 40: 2627–2633. https://www.sciencedirect.com/science/article/abs/pii/S0038071708002320?via%3Dihub
- Mengistu A. 1998. The Borana and the 1991-92 drought. A rangeland and livestock resource study. Institute for sustainable development and French Catholic Committee against Hunger and for Development. Addis Ababa, Ethiopia. Rangelands Atlas. Nairobi Kenya: ILRI.
- Mohamed AA. 2019. Pastoralism and development policy in Ethiopia: a review study. Budapest International Research and Critics Institute-Journal 2: 01–11. https://doi.org/10.33258/birci.v2i4.562
- Mugasi SK, Sabiit EN, Tayebwa BM. 2000. The economic implications of bush encroachment on livestock farming in rangelands of Uganda. African Journal of Range & Forage Science 17: 64–69. https://www.tandfonline.com/doi/abs/10.298910220110009485741
- Musa M, Teka H, Aliye A. 2018. Socio-economic and environmental impacts of invasive plant species in selected districts of Bale zone, southeast Ethiopia. African Journal of Agricultural Research 13: 673–681. https://doi.org/10.5897/AJAR2017.12982
- Naito AT, Cairns DM. 2011. Patterns and processes of global shrub expansion. Progress in Physical Geography 35: 423–442. https://doi.org/10.1177/0309133311403538
- Oba G, Kaitira LK. 2006. Herder knowledge of landscape assessments in arid rangelands in northern Tanzania. Journal of Arid Environments 66: 168-186. https://www.sciencedirect.com/science/article/abs/pii/S0140196305002636
- Oba G, Post E, Syvertsen PO, Stenseth NC. 2000. Bush cover and range condition assessments in relation to landscape and grazing in southern Ethiopia. Landscape Ecology 15: 535–546. https://doi.org/10.1023/A:1008106625096
- O’Connor DA, Butt B and Foufopoulos JB. (2015). Foraging ecologies of giraffe (Giraffa camelopardalis reticulata) and camels (Camelus dromedarius) in northern Kenya: effects of habitat structure and possibilities for competition? African Journal of Ecology 53: 183–193. https://onlinelibrary.wiley.com/doi/abs/10.1111aje.12204
- Parizek B, Rostagno CM, Sottini R. 2002. Soil erosion as affected by shrub encroachment in northeastern Patagonia. Journal of Range Management 55: 43–58. https://doi.org/10.2307/4003261
- Piccinelli S, Brusa G, Cannone N. 2020. Climate warming accelerates forest encroachment triggered by land use change: A case study in the Italian Prealps (Triangolo Lariano, Italy). Catena 195: 104870. https://doi.org/10.1016/j.catena.2020.104870
- Prabhakar AC, Alemu Y. 2013. Agricultural development-led industrialization strategy in Ethiopia: An overview. African Journal of Political Science and International Relations 7: 237–246.
- R Core Team. 2022. R: a language and environment for statistical computing. Vienna, Austria: R foundation for statistical computing. http://www.R-project.org/ (accessed 30 Oct 2022)
- Ratajczak Z, Nippert JB, Collins SL. 2012. Woody encroachment decreases diversity across North American grasslands and savannas. Ecology 93: 697–673. https://esajournals.onlinelibrary.wiley.com/doi/full/10.189011-1199.1
- Riginos C, Young TP. 2007. Positive and negative effects of grass, cattle, and wild herbivores on Acacia saplings in an East African savanna. Oecologia 153: 985–995. https://doi.org/10.1007/s00442-007-0799-7
- Rissman AR, Gillon S. 2016. Where are ecology and biodiversity in social–ecological systems research? A review of research methods and applied recommendations. Conservation Letters 10: 1–8. doi:10.1111/conl.12250
- Ronce, O. 2007. How does it feel to be like a rolling stone? Ten questions about dispersal evolution. Annual Review of Ecology, Evolution, and Systematics 38: 231–253.
- Sankaran M, Ratnam J, Hanan N. 2008. Woody cover in African savannas: the role of resources, fire and herbivory. Global Ecology and Biogeography 17: 236–245. https://onlinelibrary.wiley.com/doi/10.1111j.1466-8238.2007.00360.x
- Scholes RJ, Archer SR. 1997. Tree-grass interactions in savannas. Annual Review of Ecology and Systematics 28: 517–544. https://doi.org/10.1146/annurev.ecolsys.28.1.517
- Senbeta F, Teketay D, Näslund AB. 2002. Native woody species regeneration in exotic tree plantations at Munessa-Shashemene Forest, southern Ethiopia. New Forests 24: 131–145. https://link.springer.com/article/10.1023A:1021201107373
- Senbeta AF, Worku W. 2023. Ethiopia’s wheat production pathways to self-sufficiency through land area expansion, irrigation advance, and yield gap closure. Heliyon 9: e20720. https://www.cell.com/heliyon/pdf/S2405-8440(23)07928-8.pdf
- Shiferaw W, Demissew S, Bekele T. 2018. Invasive alien plant species in Ethiopia: ecological impacts on biodiversity a review paper. International Journal of Molecular Biology 3: 171–178. https://doi.org/10.15406/ijmboa.2018.03.00072
- Smith K, Barrett CB, Box PW. 2000. Participatory risk mapping for targeting research and assistance: With an example from east African pastoralists. World Development 28: 1945–1959. https://www.sciencedirect.com/science/article/pii/S0305750X0000053X
- Sop TK, Oldeland J. 2011. Local perceptions of woody vegetation dynamics in the context of a greening Sahel: A case study from Burkina Faso. Land Degradation & Development 24: 511–527. https://doi.org/10.1002/ldr.1144
- Sukandi T. 1994. Agroforestry-based plantations of Dalbergia latifolia Roxb. in Java, Indonesia. In: Westley SB and Roshelko JM (eds). Dalbergia: proceedings of an international workshop, Nitrogen Fixing Tree Research Reports (Special issue). Little Rock: Winrock International pp. 1–5. https://winrock.org/dalbergia-proceedingsof-an-international-workshop-nitrogen-fixing-tree-research-reportsspecial-issue-1994/
- Tamene Y. 1990. Population dynamics of the problem shrubs, Acacia drepanolobium and Acacia brevispica in the southern rangelands of Ethiopia. MSc thesis, University of New South Wales, Australia.
- Tefera BS, Mlambo V. 2010. Encroachment of Acacia brevispica and Acacia drepanolobium in semi-arid rangelands of Ethiopia and their influence on understorey species. Research Journal of Botany 5: 1–13. https://doi.org/10.3923/rjb.2010.1.13
- Telila H, Hylander K, Nemomissa S. 2015. The potential of small Eucalyptus plantations in farmscapes to foster native woody plant diversity: local and landscape constraints. Restoration Ecology 23: 918–926. https://onlinelibrary.wiley.com/doi/10.1111rec.12257
- Tengo M, Hill R, Malmer P, Raymond CM, Spierenburg M, et al.. 2017. Weaving knowledge systems in IPBES, CBD and beyond— lessons learned for sustainability. Current Opinion in Environmental Sustainability 26–27: 17–25. https://www.sciencedirect.com/science/article/pii/S1877343517300039
- Terefe A, Ebro A, Zewedu T. 2010. Rangeland dynamics in south Omo zone of southern Ethiopia: Assessment of rangeland condition in relation to altitude and grazing types. Livestock Research for Rural Development 22: 1–12. https://library.wur.nl/WebQuery/wurpubs/398151
- Tews J, Brose U, Grimm V, TielbÖrger K, Wichmann MC, Schwager M, Jeltsch F. 2004. Animal species diversity driven by habitat heterogeneity/diversity: the importance of keystone structures. Journal of Biogeography 31: 79–92.
- Thurrow TL. 2000. Hydrologic effects on rangeland degradation and restoration processes. In: Amalds O, Archer S. (eds), Rangeland desertification. Dordrecht: Springer Science & Business Media. pp. 53–66. https://doi.org/10.1007/978-94-015-9602-2_5
- Van Auken OW. 2000. Shrub invasions of North American semiarid grasslands. Annual Review of Ecology, Evolution and Systematics 31: 197–215. https://doi.org/10.1146/annurev.ecolsys.31.1.197.
- Waite S. 2000. Plant population biology and vegetation processes. Journal of Ecology 88: 935–936. https://doi.org/10.1046/j.1365-2745.2000.00499-5.x
- Ward D. 2005. Do we understand the causes of bush encroachment in African savannas? African Journal of Range & Forage Science 22: 101–105. https://doi.org/10.2989/10220110509485867
- White J. 1980. Demographic factors in populations of plants. In: Solbrig OT. (ed), Demography and evolution in plant populations. Botanical monographs 15: Oxford: Blackwells Scientific Publications.
- Yamashina C. 2014. Importance of bird seed dispersal in the development of characteristic vegetation on termite mounds in north-eastern Namibia. Tropics 23: 31–42. https://www.jstage.jst.go.jp/article/tropics/23/1/23_33/_article
- Yang X, Crews KA. 2020. The role of precipitation and woody cover deficit in juniper encroachment in Texas savanna. Journal of Arid Environments 180: 104–196.
- Yusuf H, Treydte AC, Demissew S, Woldu Z. 2011. Assessment of woody species encroachment in the grasslands of Nechisar National Park, Ethiopia. African Journal of Ecology 49: 397–409. https://doi.org/10.1111/j.1365-2028.2011.01271.x
- Zwiener VP, Padial AA, Marques MC, Faleiro FV, Loyola R, Peterson AT. 2017. Planning for conservation and restoration under climate and land use change in the Brazilian Atlantic Forest. Diversity and Distribution 23: 955–966. https://doi.org/10.1111/ddi.12588