A richness of the forests can give a

 A number of authors have stated that amongforest ecosystems of the world, forest in the tropics is characterized withhighest species diversity (Gentry, 1992) and nearly40 percent of the Eastern AfromontaneBiodiversity hotspot occurs in Ethiopia (Birdlife international, 2012). Consequently East African Mountains in the Eastern Afromontane Biodiversity hotspot is one ofthe species richest and most diversified (Tamrat Bekele, 1994). Thus thevegetation of the forest is in covenant with thegeneral pattern of high species diversity in the tropical montane forests. The results of thisstudy display that Goro-Bele forest is among diverse forests in Ethiopia withregard to flora species diversity.

Though direct contrast of the speciesdiversity with other forest is not practical due to variation in size of theforests, ecological access to survey the forest and objectives to be achieved,the overall species richness of the forests can give a general impression ofthe forests diversity. Thus the plant speciesrichness is greater than some of the fragmented dry Afromontane forests of thecountry. In line with this, with about 182 plant species in Goro-Beleforest is higher than the dry Afromontane forests of Ethiopia, for example, Denkoro forest (174 species, Abate Ayalew et al., 2006);Jibat forest (54 species, Tamrat Bekele, 1994);Menagesha Forest (91 species, Abiyou Tilahun et al.

, 2011); Tara GedamForest (111 species, Haileab Zegeye et al., 2013). The exceeding speciesrichness in the Goro-Bele forest from these Dray Afromontane forests could bedue to the higher herb species favored by anthropogenic disturbance andattributed to the size of the present study area with an altitudinal variationfrom 2063 to 2461 m above sea level.

Currently, a substantial part ofthe land surface is being influenced by human activities, causing ecosystemfragmentation and imperiling biodiversity through natural surroundingsreduction, expanded seclusion, and modifications in biotic and abiotic factorsin the rest of the fragments (Otálora et al., 2011).  Thus the herbaceousspecies richness in the study forest have been increased due to high humandisturbance in the forest. The assessment of the study resulted 75(over 40%)herbaceous plant species from the forest which could be an indicative evidencefor such disturbances. It is also noted that the high number of herbaceousspecies richness may be attributed to the open canopy cover of the forest inthe study area (Friis 1986). Moreover the presence of more dominant indicatorspecies such as Bersama abyssinica and Croton macrostachyus, and few scattered Phytolaccadodecandra, Kalanchoe petitiana, in the forest evidenced from theindicator species of forest disturbance as stated in Abate Ayalew et al.,(2006)

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