Walia Special Edition on the Bale Mountains (2011) - Zoologische ...

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Conservation of Ethiopian Amphibians: A Race Against Time Abebe Ameha Mengistu 1 , Simon Loader 1 , Abebe Getahun 2 , Samy Saber 3 and Peter Nagel 1 1 University of Basel, Department of Environmental Sciences, Institute of Biogeography, Basel, Switzerland. 2 Addis Ababa University, College of Natural Sciences, Department of Biology, Addis Ababa, Ethiopia. 3 Al-Azhar University, Faculty of Science, Zoology Department, Assiut, Egypt. Abstract Ethiopia has a diverse amphibian fauna distributed across an array of habitats, which range from savanna, moist tropical forest to Afroalpine grasslands. Little is known about the taxonomy, evolution, population biology and conservation status of the different species. This lack of research can be attributed to, 1) the bad reputation that many people had towards amphibians and reptiles, 2) little or no commercial importance of these animals in Ethiopia, and 3) the cryptic and nocturnal nature of the life of most of these fauna. Therefore, it is not surprising that until recently, little coverage has been given to the study of amphibians by higher education and research institutions in the country. Degraded landscape in the Ethiopian Highlands Ptychadena sp. (Lake Ziway, Ethiopia) Currently 64 amphibian (26 endemic) species are recorded in Ethiopia, with a large proportion of this diversity found restricted to highland regions of the country. The Ethiopian Highlands are of particular importance as several endemic amphibian species with narrow distributions can be found in this region. For example, the Bale Mountains, part of the Ethiopian Highlands on the eastern side of the Rift Valley, contain remarkable diversity of species, many with highly restricted distributions. Two remarkable monotypic genera of amphibians (Balebreviceps, and Ericabatrachus) are found only in Bale (Largen and Spawls this edition). These species have narrow distributions restricted <strong>Walia</strong>-<strong>Special</strong> <strong>Edition</strong> on the Bale Mountains 92
to just two montane sites in Harenna Forest. For this reason, these species are of high conservation priority. Recently, Bale has been subject to devastating levels of deforestation (a ten-fold increase in deforestation in the last ten years, Teshome et al. this edition). Without immediate conservation action these species are likely to become threatened with extinction. Furthermore, as is the case for amphibians worldwide, the survival of Ethiopian amphibians faces threat from climate change and a pathogenic fungal disease. One of the most comprehensive reference materials on Ethiopian amphibians has been the catalogue compiled by M.J. Largen, who also collected several specimens from the field in the 1970s and 1980s (Largen and Spawls this edition). However, despite his efforts, several questions on the taxonomy and biology of these fauna remain unanswered. With several unexplored areas across Ethiopia, there are a large number of habitats that require systematic surveying for better understanding of the natural history and conservation status of amphibian fauna. In addition to international experts conducting research in the area, intensive training and participation of local researchers in the field will ultimately be most important to answer the many varied research questions. This will also facilitate acquaintance of the local community towards the value of amphibians in the environment. Among other workers in this area, the authors of this paper are working on the systematics, biogeography and conservation of Ethiopian amphibians, in particular of those in the highlands. The future preservation of Ethiopian amphibians will depend upon continued research and appropriate application of conservation options, a race against time. We are interested in hearing about any observations or queries on amphibians in Ethiopia. Please contact us at: abbefish@yahoo.com. We are grateful to the Faculty of Science (Addis Ababa University) and the Ethiopian Wildlife Conservation Authority for facilitating field works to our group. <strong>Walia</strong>-<strong>Special</strong> <strong>Edition</strong> on the Bale Mountains 93
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Walia Spec
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This Special <stro
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Foreword The Bale Mountains are uni
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FACTORS AFFECTING FIRE ExTENT AND F
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Introduction This Special</
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Mammals of the Bale Mountains Natio
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History and Physical Features of th
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Name of Order Name of Family No of
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wolf is a rare canid endemic to the
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Hillman. J. C. 1993. Ethiopia: Comp
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Scientific name Common name Sources
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Structuring of the Birds of the Bal
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interactions? 2) Would such classif
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feeding habit and the related bill
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Table 1. Component loadings of fora
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Assemblage 1 Assemblage 2 Assemblag
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of a community there must be a prem
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Hillman, J.C. 1986. The Bale Mounta
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1995a; Sillero-Zubiri et al. 2004,
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Monitoring Activities the Bale Moun
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Table 1. Packs monitored in the Bal
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long-term study areas. However, tot
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Creel, S., Spong, G., Sands, J.L.,
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Observations on the Status of the M
Page 49 and 50: The Bale Mountains Figure 1. The kn
Page 51 and 52: of the park’s interior, where hum
Page 53 and 54: The Ahmar (Chercher) Mountains The
Page 55 and 56: Casuarina equisetiflium lia, Hageni
Page 57 and 58: Threats Predictably, the main threa
Page 59 and 60: populations within hunting blocks a
Page 61 and 62: Population Estimates and Diet of St
Page 63 and 64: To identify the types and proportio
Page 65 and 66: Table 3. Coverage of plant species
Page 67 and 68: for eating grass species. During th
Page 69 and 70: Ecology and Reproductive Strategy o
Page 71 and 72: overall diet (36% of total prey occ
Page 73 and 74: Table 1. Ethiopian wolf density (in
Page 75 and 76: encounters between neighbouring wol
Page 77 and 78: No new packs were formed between 19
Page 79 and 80: Cooperative Breeding Role of helper
Page 81 and 82: Mean feeding rate (contributions/ho
Page 83 and 84: successful dispersal are very low,
Page 85 and 86: References Ashenafi, Z.T. 2001. Com
Page 87 and 88: Solomon, N. G., and French, J.A. Ed
Page 89 and 90: Figure 1. The Bale monkey (Cercopit
Page 91 and 92: Survey method - Dec 06-Jan 07 Line
Page 93 and 94: Table 3. Estimates of population de
Page 95 and 96: Monitoring and management prioritie
Page 97 and 98: Amphibians and Reptiles Recorded fr
Page 99: Lizards Agamidae Acanthocercus atri
Page 103 and 104: used for comparison. The study reve
Page 105 and 106: Mapping High-Altitude Vegetation in
Page 107 and 108: of the alpine vegetation have been
Page 109 and 110: Observers located each point by GPS
Page 111 and 112: Figure 1. Afroalpine vegetation in
Page 113 and 114: other, and class N from O, because
Page 115 and 116: J. mima mounds and grazed mineral s
Page 117 and 118: Node Clusters Species in 1st cluste
Page 119 and 120: A. Arboreal heather/lake -E 64.6 +W
Page 121 and 122: A. Arboreal heather/lake 82 ± 176
Page 123 and 124: elevations of 4100-4200 m a.s.l. in
Page 125 and 126: Miehe, G. and Miehe, S. 1994. Erica
Page 127 and 128: and managing natural resources and
Page 129 and 130: The Bale Mountains National Park is
Page 131 and 132: The ground-truthing points made up
Page 133 and 134: Table 2. Table showing the area for
Page 135 and 136: Table 5. Description of patchiness
Page 137 and 138: Acknowledgments This study was fund
Page 139 and 140: Characteristics and Origins of Glad
Page 141 and 142: Figure 1. Map with the approximate
Page 143 and 144: Table 1. Main characteristics of th
Page 145 and 146: Table 2. Soil Properties at two dep
Page 147 and 148: Total aboveground biomass ranged fr
Page 149 and 150: There might be some evidence for th
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Appendix 1. Attributes for soil pro
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Ogate (altitude 1753 m) Water Site
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the loss of natural forests due to
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Results Fire extent and frequency A
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Soil type Over 50% of the total num
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Distance to settlements The frequen
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than expected given there available
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MOA 2000. Ethiopian Forest Status R
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among seasons are usually only a fe
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In contrast to the northern highlan
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Table 1. The distribution, species
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it was absent from the central subz
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Figure 2. Population structure of t
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Fetene, M., Gashaw, M., Nauke, P. a
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Bale Mountain Lakes: Ecosystems Und
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occurrence above 4000 m. Rainfall i
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Table 1. List of the sampled waterb
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total nitrogen, chlorophyll a, cond
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Eggermont H., Russell, J.M.. Schett
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Direct Consumptive Use Value of Eco
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As more literature seeks to explore
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Table 1. Ecosystem goods and servic
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Figure 1. Map of the Bale Mountains
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2(a) Crop Production HH Crop Value
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3(a) Mean Household Annual Direct C
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accruing to households. Although no
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Acknowledgements This study was mad
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Livestock Grazing in Bale Mountains
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evidence that low levels of grazing
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wildlife, especially the mountain n
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and control sites (areas where live
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several of the Bale ecosystem compo
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Paine, R. T. and Vadas, R. L. 1969.
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their hives. Hive and tree types we
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HOROqqA (Bersama abyssinica, Melian
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Value Chain Analysis for Bamboo Ori
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data recorded by the Development Ag
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Amongst the interviewees, 80% of pe
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Producers As reported previously, b
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The above figure shows the various
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(6) BERSMP and all other stakeholde
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The Distribution, Properties and Us
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preliminary data. From the prelimin
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Figure 1. Map of the southern part
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Addeye All the 11 horas in Addeye a
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Tabalas are used for healing purpos
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Cultural value and history The use
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(Barrett-Lennard 2003). Finally, pr
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Appendix ph Colour Salinity (mS) Ta
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Villages using the hora Animals vis
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General Management Planning for the
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BMNP Management History Since its i
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effectively and efficiently impleme
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Problems and Issues A problems and
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understood threats were also identi
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Park Operations Programme This prog
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according to its core vision and pr
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People in National Parks - Joint Na
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pastoralists, as part of pastoral s
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of wild animals (Stephens et al. 20
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have experience in the implementati
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2004) or conservation and livelihoo
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• The redefinition of protected a
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Risk of Disease Transmission Betwee
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aspects of these factors, including
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ecorded as “point vegetation” f
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Table 1: Composition of 326 ungulat
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Table 3. Distance from road at whic
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Transmission risk Clearly, disease
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Dunn, A.M. 1968. The wild ruminant
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however continues to rise and in 19
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Tourism in the Bale Mountains Natio
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the past 5 years tourism activities
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assist with implementation of the t
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An increase in tourism investment i
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at a loss of approximately ETB 10,0
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Can Carbon Contribute to Conservati
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emains. The more recently coined RE
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Benefits The implementation of such
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or meet the minimum costs necessary
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Table 1. Financial forecast for 20
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across Africa. Biological Conservat
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sets, extract relevant bits of info
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What to Monitor? The question of wh
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scale as a balance where one side r
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through existing databases not only
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The moral of these stories are that
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anger based monitoring system is a
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spatial and temporal extent of the
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IUCN Red Listed Species Description
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Appendix 2: Metadata form A digital
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and climate data, AVHRR NDVI data,
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http://www.mentorsoftwareinc.com Me
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Individual Arrest Form Index No. Lo
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If for Commercial Market: □ in yo
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• Improve research work on wildli
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• Development Partners (donors) a
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Sustainable Development of the Prot
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I. Personal details Ethiopian Wildl
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Publication Financially Supported b
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