Abstract
An ecological study on diurnal mammals was carried out in Bayo Community Managed Forest located in Salamago Woreda, South Omo Zone. The objective of the study was to investigate the distribution and conservation challenges of diurnal large mammals in the study area. Based on the habitat type and topography of the study area, total of 11 transect, i.e 7 in forestland, and 4 in Wooded Grassland were laid to collect the data. Besides direct methods, indirect methods such as faecal droppings, fresh tracks, carcass or shell count, den (burrow), hair, and digging were used. Questionnaire and focus group discussions were also used to assess anthropogenic threats in the study area. Data were analyzed using descriptive statistics, SPSS and QGIS software. A total of 20 species of diurnal large mammals belonging to six orders and eight families were identified. The species identified were
Author Contributions
Copyright© 2023
Haile Tamirat, et al.
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Introduction
Tropical Africa has greater mammalian diversity than any other area of the world Ethiopia is one of the countries found in the eastern horn of Africa Mammals are mainly concentrated in the southern parts and southwest border and adjacent areas of the country The main challenges of mammals in the protected areas of the country include overgrazing and encroachment from pastoral people, shifting cultivation and permanent agriculture, human settlements, increased demand and extraction of fuelwood, wood logging, construction materials, uncontrolled fires, illegal poaching and hunting, charcoal burning, illegal fishing and extraction of other natural resources Salamago Woreda is found in South Omo Zone, southern Ethiopia. It is located between 5021' -6027'N and 36021'-37057'E. The elevation is ranging between 383m and 2543m asl. It is about 800 and 530 km southwest of Addis Ababa and Hawassa, respectively, and 374kms far from Arba Minch and 123 km from Jinka (capital city of South Omo) ( The rainfall in the region is bi-modal. Main rainy season is from March to July and short rainy season is from August to September. The mean monthly maximum and minimum temperatures are 41.140C and 200C, respectively. Bayo community forest surroundings have unique natural, features such as, mountain chains at Jemesho, Jemesho water, Jemsho river fall, Bezi water, and Hot spring water. Both Jemesho water and Hot spring water is endowed with scenic beauty to attract many international and local tourists. The local community belived the water has therapeutic use as well as spiritual Power. Jemesho Mountain is the biggest mountain in Salamago Woreda, which is found inside Bayo community forest. Jemesho Mountain is the water tower to Salamago Woreda, particularily to Muri, Bodi, Banchi, Konso and Dime community. The major vegetation types of the Bayo community-managed forest area are characterized by Moist Evergreen Montane Forest Ecosystem to The most dominant ground cover herbs in the forestland are Ethiopian cardamom, Ginger, some Acanthaceae family Justicia herbs and climber species. Some trees, shrub and herbs species in the forestland are : The plant species in the wooded grassland are
Land cover type
Area (km2)
Perecentage
Bayo Wooded Grassland
34.58
31.49
Bayo forestland
75.23
68.51
Total
109.81
100
Materials And Methods
Material used for this study include: Binocular, Telescope, Digital camera, Field data sheet, Global positioning system, satelite map, compass, Kingdon Field guide of mammals, Data Sheet, Notebook, and Questionnaire. Based on habitat type and topography, the study area stratified into two-forestland and wooded grassland. Then transect were laid in each habitat type. On these transects direct survey methods were used to collect data on distribution of diurnal mammals in the study area. Besides, indirect survey methods such as fecal droppings, fresh tracks, Carcass or shell count, Den (burrow), hair, and digging were used. Questionnaire and focus group discussions were used to investigate anthropogenic threats in the study area. Line transect sampling method was used to study distribution of diurnal large mammals in the forest following Salamago Woreda consists of 22 kebeles.Thus, based on proximity to the forest, three kebeles namely: Dime Woyde, Dime Erqa and Dime Garfa kebeles were selected purposively. The number of households in each kebele was, 283, 194, and 168 for Dime Woyde, Dime Erqa and Dime Garfa, respectively. Following where, K is the sampling frame (size of selection interval), N is the total number of households (HH) in the kebele and n is the sample size allocated in the kebele. Moreover, focus group discussions were conducted with kebele leaders (n= 12), local elders (3), agriculture development Agent experts (3), and 1 expert from REDD+ Project. Hence, the sample sizes for the study become 83. Data were collected from Feburary to December 2021. Both wet and dry season months were included in the study. Thus, seasonal data were collected during May - July 2021 and October - December 2021 for wet and dry seasons, respectively. Transects were visited twice a month during the study period. Transects were traversed on foot with average speed of 2 - 2.5km/hr and the starting and ending points of each transect was marked using Garmin 64 GPS Furthermore, indirect evidences of animals presence such as tracks/imprints, fecal/scat and den/burrow found along the transect line were also recorded In order to collect information about the anthropogenic threats to the forest in the study area, questionnaires and focus group discussions were used. First, the questionnaires were prepared in English but later translated into local language that widely spoken in the area (Dime Ethnic group language) so as to obtain the required information without language barrier. The structured questionnaires contain both open and close ended questions to get information about anthropogenic activities in the study area. Questionnaire covered demographic information, such as age, sex, education level, village name, about forest, illegal Fire, livestock grazing invasive or climate changes, and attitudes of the community towards wildlife modified from Focus group discussions were conducted from three kebele so as to complement the information gathered through questionnaires. Focus group discussions (n=19) were conducted from three kebele, Dime Woyde, Dime Erqa, and Dime Gerfa community. To collect information about the forest in relation to its faunal composition. The nearby to forest community leaders focus group discussion with each kebele administrators was conducted. From different age group i.e. Kebele Leaders, Local Elders, community ,members and community rangers based focus group discussion with each kebele people were carried outed. Information obtained from group discussion were summarized used text analysis methods, and report as narrative form of note. The identified species were taxonomically grouped into their respective order, family, scientific species, common name was analyised by Microsoft EXCEL program. species richness computation, the minimum number of species identified were considered. Species richness was analyised by Microsoft EXCEL programs. The spatio-temporal distribution map was analyzed by QGIS software 3.4 version. Moreover, figures, tables, and charts were used to present the results of the study. The questionnaire survey data was analyzed and compared by computer program SPSS version 20.0, whereas FGD data were analyzed summarized used text analysis methods and report as narrative form of note.
5km
Forestland
5km*1km = 5 km2
4.5km
Forestland
4.5km*1km = 4.5km2
4km
Forestland
4km*1km = 4km2
4km
Forestland
4km*1km = 4km2
4km
Forestland
4km*1 km = 4km2
3.5km
Forestland
3.5km*1 km = 3.5 km2
4.5km
Forestland
4.5km*1 km = 4.5 km2
5km
wooded grassland
5km*1km = 5km2
5km
wooded grassland
5km*1km = 5 km2
3.5km
wooded grassland
3.5km*1km = 3.5 km2
3.5km
wooded grassland
3.5km*1km = 3.5 km2
Results
During the present investigation, a total of 20 diurnal large mammalian species were identified and recorded in the Bayo community managed forest in both the dry and wet seasons. In the survey, all of these species were recorded within the randomly selected sampling habitats of the two major habitat types. Species composition was assessed based on season and habitat types. Accordingly, 19 and 20 species were recorded during wet and dry seasons, respectively. Hence, seasonal variation in the number of species of mammals was not statistically significant (χ2 = 0.024, df= 1, p>0.05) ( Of the 1,285±20 individuals, 683 and 602 animals were recorded in forestland and wooded grassland habitats, respectively. Highest number of individuals recorded were during wet season in forestland (n=381); whereas the lowest record was during dry season in wooded grassland habitat (n=298). ( The Colobus monkey ( Majority (81.25%) of the respondents were male household heads. Respondents with different age group were involved during the study. Hence, most respondents (90.62%) were found at age category between 26-55. Over half (57.81%) of the respondents had no formal education. However, 42.19% of respondents had formal education beginning from primary education up to college level. Almost all (98.44%) of the respondents were married. Farming (92.19%) was the major source of livelihood in the study area. With regard to occupation in the study area, 31.25% and 67.19% of the respondents lived 6-10 years and more than 10 years, respectively. In the present study many threats to BCMF were identified such as poaching, fire, grazing, fuelwood extraction, population growth, habitat modification, overharvesting of resources, invasives species . Although majority age category (26-4) (53.13%) of the respondents denied the practice of poaching in the study area, (26->65) 31.25% of the respondents mentioned the occurrence of illegal hunting in the locality. As most respondents reflected, due to the control of the forest by the local government, there was less incidence of poaching. Animals that mostly being hunted in the study area include: Lesser kudu ( All respondents category (18->65) (100%) confessed the occurrence of hunan-induced fire in the forest especially during dry season. The respondents mentioned many reasons why intentional fire set in the forest such as to avoid bush encrochment and obtain new grass growth, clearing the area for farmland (usually at the edge of the forest), and during honey collection. Muri, Bodi and Banchi ethnic groups annually burn large area in the forest. Respondents also mentioned practices of free grazing livestock in the forest, though it occurred less often. However, all repondents age category (18- >65) (100%) explained the existence of harvesting grass for livestock during a certain season while permitted by local community leader. Majority age category (26-55) (92.21%) of the respondents mentioned that fuelwood collection inside the forest not allowed. Hence, fuelwoods usually being collected at the edge/outside of the core area of the forest. However, age category (18-25 and 56->65) 7.79% of the respondents informed the practice of fuelwood collection in the forest. Other human impacts on Bayo community forest (population growth, habitat modification, overharvesting of resources, and invasives species) were also indicated by the respondent, despite not significant. The respondents mentioned these impacts were more pronounced before the forest was re-demarcated by SNNPRS and REDD+ in 2018. Particularily, according to age category (18->65) 99.44% of the respondents, the impact of population growth nearby the forest resulted serious problem on the forest before 2018. On the other hand, habitat modification, overharvesting, and invasive species were, low (26-45) (71.88%), moderate (18->65) (85.25), and (26-45) low (73.44), respectively. Invasive plant species occurred in the study area include: Parthenium weed ( On the contrary, in the present study, respondents vehemently expressed the impact of wild animals in relation to crop damage, livestock depredation and being threats to human life. Accordingly, 70.32%, 20.32%, 9.38% of respondents confirmed the negative impacts of wildlife as crop damage, livestock depredation and threatning human life, respectively ( Respondents attitude towards the forest was also assessed during the study. The forest existence as important source of livelihood realized by many (98.44%) respondents. However, 1.56% of the respondents had no information about the very existence of the forest at all. Respondents also ranked the degree of importance of the forest to their livelihood. Thus, 54.69% and 43.75% of the respondents mentioned BCMF as very important and important, respectively ( *significant at 0.05 A total of three focus group discussions were carried out at Dime-Woyde, Dime-Garfa, and Dime -Erqa kebeles (
Scientific Name
Common Name
Local name
IUCNCategory
CITES
BCMFstatus
Identification Methods
order Primates
Family Cercopithecidae
Vervet Monkey
Angum Kar
Least Concern
Appendix II
Common
Direct
Grivet monkey
Ftu Kar
Least Concern
Appendix II
Common
Direct
Anubis Baboon
Gydu
Least Concern
Appendix II
Common
Direct
Patas monkey
Alqum
Least Concern
Appendix II
Uncommon
Direct
DE-Brazza’s monkey
Sudn
Least Concern
Appendix II
Common
Direct
Family colobidae
Colobus monkey
Guru
Near- Threatened
Appendix II
Common
Direct
Order Perissodactyla
Family Equidae
Burchell’s zebra
Kubo yre
Near- Threatened
Appendix II
Common
Direct
Odrder Artiodactyla
Family Bovidae
Greater kudu
Wugre
Near- Threatened
Appendix II
Common
Direct
Lesser kudu
Marchne
Near Threatened
Appendix II
Uncommon
Direct
Bushbuck
Unibo
Least Concern
Appendix II
Uncommon
Direct
Guenther's Dik- dik
Shuno
Least Concern
Appendix II
Uncommon
Direct
Bush Duiker
Kolfi
Least Concern
Appendix II
Uncommon
Direct
Defassa waterbuck
Kuku
Near-Threatened
Appendix II
Uncommon
Direct
Black Buffalo
Miku
Least Concern
Appendix II
Uncommon
Direct
Bushpig
Gudm
Least Concern
Appendix II
Common
Indirect (tracks,dropping and feedingtracks, carcass
Common Warthog
Gashu
Least Concern
Appendix II
Common
Direct
Giant Forest Hog
Kalakandi
Least Concern
Appendix II
Rare
Direct and Indirect (tracks)
Crested porcupine
Grish
Threatened
Appendix II
Rare
Indirect (tracks, carcass
Aardvark
Blikune
Threatened
Appendix II
Rare
Indirect (den or burrow),Holes
Ground pangolin
Kukuneche
Endangered
Appendix II
Rare
Indirect (shell,tracks)
Vervet Monkey (
99
82
9
11
108
93
Grivet monkey (
-
8
13
33
13
41
Anubis Baboon (
65
68
39
53
104
121
Patas monkey (
-
-
42
47
42
47
DE Brazza’s monkey (Cercopitheus neglectus)
40
26
-
-
40
26
Colobus monkey (
131
63
18
14
149
77
Burchell’s zebra (
-
6
42
39
42
47
Greater kudu (
-
5
37
11
37
16
Lesser kudu (
-
-
8
13
8
13
Bushbuck (
16
13
4
2
20
15
Guenther's Dik- dik (
-
-
4
6
4
6
Bush Duiker (
14
9
4
5
18
14
Defassa waterbuck (Kobus ellipsiprymnusdefessa)
-
-
-
24
-
24
Black Buffalo (
1
1
28
14
29
15
Bushpig (
8
7
9
4
17
11
Common Warthog (
-
10
18
10
18
20
Giant forest Hog (
4
1
-
-
4
1
Crested porcupine (
3
2
16
5
19
7
Aardvark (
-
-
12
6
12
6
Ground pangolin (
-
-
1
1
1
1
Total No. of individuals per habitat
381±7
302±5
304±3
298±3
685±7
600±6
Total No. of species per habitat
10
14
17
18
19
20
English name
Forestland
Wooded grassland
Total
wet
dry
wet
dry
wet
dry
Vervet Monkey
99(25.98%)
82(27.15%)
9(2.96%)
11(3.69%)
108(15.77%)
93(15.50%)
Grivet monkey
-
8(2.65%)
13(4.28%)
33(11.07%)
13(1.90%)
41(6.83%)
Anubis Baboon
65(17.06)
68(22.52%)
39(12.83%)
53(17.79%)
104(15.18%)
121(20.17%)
Patas monkey
-
-
42(13.82%)
47(15.77%)
42(6.13%)
47(7.83%)
DE Brazza’smonkey
40(10.53)
26(8.61%)
-
-
40(5.84%)
26(4.33%)
Colobus monkey
131(34.38)
63(20.86%)
18(5.92%)
14(4.70%)
149(21.75%)
77(12.83%)
Burchell’s zebra
-
6(1.99%)
42(13.82%)
39(13.09%)
42(6.13%)
45 (7.5%)
Greater kudu
-
5(1.66%)
37(12.17%)
11(3.69%)
37(5.40%)
16(2.67%)
Lesser kudu
-
-
8(2.63%)
13(4.36%)
8(1.17%)
13(2.17%)
Bushbuck
16(4.20)
13(4.30%)
4(1.32%)
2(0.67%)
20(2.92%)
15((2.50%)
Guenther's Dikdik
-
-
4(1.32%)
6(2.01%)
4(0.58%)
6(1%)
Bush Duiker
14(3.67)
9(2.98%)
4(1.32%)
5(1.68%)
18(2.63%)
14(2.33%)
Defassa waterbuck
-
-
-
24(8.05%)
-
24(4%)
Black Buffalo
1(0.26)
1(0.33%)
28(9.21%)
14(4.70%)
29(4.23%)
15(2.50%)
Bushpig
8(2.10)
7(2.32%)
9(2.96%)
4(1.34%)
17(2.48%)
11(1.83%)
common Warthog
-
10(3.31%)
18(5.92%)
10(3.36%)
18(2.63%)
20(3.33%)
Giant Forest Hog
4(1.05)
1(0.33%)
-
-
4(0.58%)
1(0.17%)
Crested porcupine
3(0.79%)
2(0.66%)
16(5.26%)
5(1.68%)
19(2.77%)
7(1.17%)
Aardvark
-
-
12(3.95%)
6(2.01%)
12(1.75%)
6(1%)
Ground pangolin
-
-
1(0.33%)
1(0.34%)
1(0.15%)
1(0.17%)
Total(21)
381(100%)
302(100%)
304(100%)
298(100%)
685(100%)
600(100%)
Variable
Response
Dime Woyde
Dime Erqa
Dime Garfa
Overall
Frequency
Percent
Frequency
Percent
Frequency
Percent
Frequency
Percent
Sex
Male
23
82.14
14
73.68
15
88.24
52
81.25
Female
5
17.86
5
26.32
2
11.76
12
18.75
Age
18-25
-
-
-
-
1
5.88
1
1.56
26-35
9
32.15
6
31.58
2
11.76
17
26.56
36-45
14
50
9
47.37
10
58.83
33
51.56
46-55
2
7.14
3
15.79
3
17.65
8
12.5
56-65
2
7.14
-
-
-
-
2
3.13
>65
1
3.57
1
5.26
1
5.88
3
4.69
Educational status
No formaleducation
15
53.58
12
63.16
10
58.82
37
57.81
Primaryschool
10
35.71
5
26.32
4
23.53
19
29.69
Secondaryschool
2
7.14
1
5.26
3
17.65
6
9.38
College
1
3.57
1
5.26
2
3.13
Marital status
Married Single
28 -
100 -
18 -
94.74 -
17 -
100 -
63 -
98.44 -
Divorced
-
-
1
5.26
-
-
1
1.56
Livelihood
Farming
26
92.86
17
89.47
16
94.12
59
92.19
GovernmentEmployee
2
7.14
2
10.53
1
5.88
5
7.81
Duration
1-5 years
-
-
1
5.26
-
-
1
1.56
6-10 years
8
28.57
5
26.32
7
41.18
20
31.25
Impacts
Degree of impacts
Trends of impacts
Low
Moderate
High
Increasing
Decreasing
unchanged
Frequenc
Percen
Freque
Perc
Freque
Perc
Frequency
Perc
Freque
Perce
Frequen
Perce
Populationgrowth
-
-
1
1.56
63
98..44
-
-
64
100
-
-
Habitatchanges
57
89.06
4
6.25
3
4.69
1
1.56
63
98.44
-
-
Over-harvesting
11
17.19
52
81.25
1
1.56
1
1.5
63
98.44
-
-
invasivespecies
59
92.19
5
7.81
-
-
9
14.09
-
-
55
85.94
Types of problems
Dime Woyde
Dime Erqa
Dime Garfa
Overall
Frequency
%
Frequeny
%
Frequency
%
Frequency
%
Cropdamaging
22
78.57
12
63.16
11
64.71
45
70.32
Predation
-
-
7
36.84
6
35.29
13
20.32
Threat onhumans
6
21.43
-
-
-
-
6
9.38
Attitude towards BCMF
Name of Village
Dime Woyde
Dime Erqa
Dime Garfa
Overall
χ2
df
pvalues
Frequency
%
Frequency
%
Frequency
%
Frequency
%
Veryimportant
19
67.86
8
42.11
8
47.06
35
54.69
6.392
2
0.011*
important
9
32.14
10
52.63
9
52.94
28
43.75
6.623
2
0.036*
I don’tknow
-
-
1
5.26
-
-
1
1.56
2.015
1
-
Total
28
100
19
100
17
100
64
100
15.426
2
0.00
Species Name
Local name
Observation method
African civet (
Dugite
Indirect observation and interview
Cheetah (
Kergine
interview
Spotted hyena (
Nayo
Indirect observation and interview
Caracal (
Halute
Direct observation
Leopard (
Tolku
Direct observation and smell
Serval cat (
Alute
Indirect observation and interview
Lion (
Beyo
Indirect observation and interview
Honey badger (
-
Indirect observation and interview
Common jackal (
-
Observation, Indirect, and interview
Tortoise
Zahahami
Direct observation
Wild dog (
Yayu
Indirect observation and interview
Discussion
In terms of number of mammalian species identified, the study area comprises relatively lower and higher number of species as compared to other similar studies in the country. For instance, lower records include 10 species in Geremba Mountain Fragments community-managed area, Southern Ethiopia The present study show the highest number of mammals was recorded in forest than wooded grassland habitat in the study area. The species richness was highest in wooded grassland (17) compared to forestland (10) in the wet season, while as wooded grassland (18) compared to forestland (14) in dry season respectively. This study similar to Mammalian distribution was higher number in forestland than wooded grassland in Tululujia Wildlife Reserve, Southwestern Ethiopia Poaching, grazing, human-induced fire, fuelwood extraction, population growth, habitat change, overharvesting, and invasive species were the major threats to BCMF. Although only 31.25% of respondents agreed on the occurrence of illegal hunting in the study area, the presence of animal products such as horns and skin in many houses of households might indicate a higher level of poaching in the area. According to some respondents the area used to host Elephants ( Invasive plant species encroachment is a major threat to the extinction of mammalian species, and very common agenda in worldwide In the study area, there is the human-wildlife conflict that causes crop damage, livestock depredation and threatening to human life. However, crop damage was the most pronounced problem in the study area. Crop damage was reported as the most serious problem of human-wildlife conflict in many earlier studies Respondents' positive attitude towards BCMF indicates the occurrence of better awareness about forest conservation as well as the proper realization of the benefits obtained from the forest. In general, due to the recent awareness creation made by REDD+, threats in BCMF is decreasing. Studies at Choke mountain forest
Conclusion
The occurrence of 20 mammalian species that belong to six orders and eight families indicates that BCMF is an important area that harbours diverse mammalian species. Thus, it is very important to sustain the existence of these species by strengthening the conservation approach practised in the area. Significant difference in species composition was observed between habitat types. Hence, the highest species richness was recorded in the wooded grassland whereas the lowest was in forestland. Therefore, this indicates habitat type determined the distribution of some species. On the other hand, seasonal variation in the number of mammals was not statistically significant. Thus, the season was not a factor to determine species richness in the study area. In the study area, there are anthropogenic threats on wild animals such as poaching, human-induced fire, grazing, habitat modification, population growth and so on. On the other side, crop damage, livestock depredation and threatening to human life are the negative values of wildlife in the study area. However, due to the recent awareness creation made by REDD+, the local community has developed a positive attitude towards wild animals in the study area.