Flora Biodiversity Assessment in Bonga, Boginda and Mankira Forest

had done by different authors not mentioned in Riechmann, Dennis 2007 are included in the
current survey either in the form of comparison or complement.
2. METHOD OF ASSESSMENT
2.1 Institute of Ecology and Environmental Management (IEEM) Guideline on Ecological
Impact Assessment (2006) was consulted during the study period. Calculation of
different biodiversity indices was done based on ITC lecture notes which were prepared
from the work of Anne E. Magurran, Princeton University Press (1988), Michael A.
Huston, Cambridge University Press (1994) and John A. Wallwork, Academic Press,
New York (1976). Aims and Methods of Vegetation Ecology by Mueller-Dombois and
Ellenberg 1974 are consulted throughout the study period.
2.2 For vegetation classification of Ethiopia in general and the study area in particular, Friis,
1994, Chaffey, 1979, EFAP, 1994 and IBC, 2005 were used. Additional information
related to vegetation (on the study area) is collected from Zonal Bureau of Agriculture
and Rural Development, Zonal Bureau of Trade and Industry, Planning and Investment
Desk.
2.3 The two remotely sensed data are the main tools, Landsat ETM 7 123 of 2002 and ASTER
321 RGB, used to stratify, determine transects’ position and collect data. The remotely
sensed data were analyzed using ERDAS IMAGINE 8.4, ILWIS 3.1, ArcGIS 9.1 and 9.2
and ArcView GIS 3.2. Digital image classification was conducted.
2.4 For plant identification Azene Bekele-Tessema with Ann Birnie and Bo Tenagnas, 1993,
Edward, S. et al, 1995, Welde Michael, 1987 , Hedberg, I. & Edwards, S., 1995 and
Hedberg, I. & Edwards, S., 1989 were used. Plants species that were not identified at
field level were taken to Addis Ababa University, national herbarium for identification.
Desk Study Methods
2.5 Relevant biodiversity information was gathered mainly from Federal Environmental
Protection Authority (EPA) and Institute of Biodiversity Conservation (IBC). Other
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