Species taxonomic composition
The orders and families of mammalian species recorded within the shown study were higher than within the study conducted on medium and large-sized well-evolved creatures in several territories. On the occasion, Legese et al ., (2019) recognized five orders and seven families within the Wabe timberland, Ethiopia. Too, Girma and Worku (2020) distinguished five orders and nine families within the Nensebo Timberland, Southern Ethiopia; Lemma and Tekalign (2020) recorded four orders and five families within the Humbo Community-Based Timberland Range, Southern Ethiopia; here in Arjo Diga forest 6 orders and 12 families were recorded. On the contrary, Gebo et al ., (2021) identified six orders and 13 families from the Faragosa-Fura landscape, Gamo Zone, Southern Ethiopia; Qufa and Bekele (2019) identified seven orders and 11 families from the Lebu natural conservation forest, Southwest Showa Ethiopia which is higher in families and order respectively than the present study. The minimal number of orders or families in the present study area might be attributed to the limited survey period, variation in the size of the area, severe habitat loss, and fragmentation by various anthropogenic activities.
The Carnivora were the most abundant order recorded in terms of the number of families and species, respectively. The result is consistent with the different studies elsewhere in Ethiopia (Rabira et al ., 2015; Bakala & Mekonen, 2020; Girma & Worku, 2020; Lemma & Tekalign, 2020). Order primate was the second most abundant in terms of the number of families (two families) and species (four species). Similarly, several studies have also reported a higher relative abundance of Primates than other orders from different parts of Ethiopia (Rabiraet al ., 2015; Belete & Melese, 2016; Bakala & Mekonen, 2020; Worku & Girma, 2020). This is could be due to the high reproductive successes, their more adaptive nature to different habitats, diversified foraging behavior, and high tolerance level of primates to human disturbances (Negeri et al ., 2015; Lemma & Tekalign, 2020). Moreover, Order Artiodactyla has the second abundant order recorded. This is in agreement with the study in the Nensebo forest in Southern Ethiopia where Artiodactyla was the most abundant order containing more species (Girma & Worku, 2020; Lemma & Tekalign, 2020). Orders like Rodentia and Tubulidentata have been recorded as much less as the wide variety of individuals. This is in keeping with different research in various parts of Ethiopia (Rabira et al ., 2015; Getachew & Mesele, 2018; Fetene et al ., 2019; Girma & Worku, 2020; Worku & Girma, 2020).