scholarly journals Dietary generalists and nutritional specialists: Feeding strategies of adult female blue monkeys ( Cercopithecus mitis ) in the Kakamega Forest, Kenya

2019 ◽  
Vol 81 (7) ◽  
Author(s):  
Maressa Q. Takahashi ◽  
Jessica M. Rothman ◽  
David Raubenheimer ◽  
Marina Cords
Keyword(s):  
Adult Female ◽  
Feeding Strategies ◽  
Cercopithecus Mitis ◽  
Kakamega Forest ◽  
Blue Monkeys

Hearing and communication in blue monkeys (Cercopithecus mitis)

1984 ◽  
Vol 32 (1) ◽  
pp. 66-75 ◽  
Author(s):  
Charles H. Brown ◽  
Peter M. Waser
Keyword(s):  
Cercopithecus Mitis ◽  
Blue Monkeys

Reproductive biology of Sykes and blue monkeys (Cercopithecus mitis)

1985 ◽  
Vol 9 (3) ◽  
pp. 189-196 ◽  
Author(s):  
James G. Else ◽  
Robert M. Eley ◽  
Mbaruk A. Suleman ◽  
Rudolf M. Lequin
Keyword(s):  
Reproductive Biology ◽  
Cercopithecus Mitis ◽  
Blue Monkeys

scholarly journals Male blue monkeys alarm call in response to danger experienced by others

2008 ◽  
Vol 4 (5) ◽  
pp. 472-475 ◽  
Author(s):  
Sarah Papworth ◽  
Anne-Sophie Böse ◽  
Jessica Barker ◽  
Anne Marijke Schel ◽  
Klaus Zuberbühler
Keyword(s):  
Alarm Call ◽  
Alarm Calls ◽  
Panthera Pardus ◽  
Playback Experiments ◽  
Cercopithecus Mitis ◽  
Group Members ◽  
Blue Monkeys ◽  
Budongo Forest

Male blue monkeys ( Cercopithecus mitis stuhlmanni ) of Budongo Forest, Uganda, produce two acoustically distinct alarm calls: hacks to crowned eagles ( Stephanoaetus coronatus ) and pyows to leopards ( Panthera pardus ) and a range of other disturbances. In playback experiments, males responded to leopard growls exclusively with a series of pyows and to eagle shrieks predominantly with hacks. Responses to playbacks of these alarm call series matched the responses to the corresponding predators, suggesting that the calls conveyed something about the nature of the threat. When responding to a series of hacks, indicating an eagle, males responded predominately with hacks, but produced significantly more calls if their group members were close to the playback stimulus than far away, regardless of their own position. When responding to a series of pyows, indicating a range of disturbances, males responded with pyows, but call rates were independent of the distance of other group members. The results suggest that males took into account the degree of danger experienced by other group members.

scholarly journals Population Size, Activity Patterns, Diet, and Ranging Ecology of Boutourlini’s Blue Monkey (Cercopithecus mitis boutourlinii) in Apini and Dokuma Forests, Awi Zone, Ethiopia

2021 ◽  
Author(s):  
Zemenu Birhan ◽  
Dessalegn Ejigu
Keyword(s):  
Population Size ◽  
Total Population ◽  
Activity Patterns ◽  
Cercopithecus Mitis ◽  
Mature Leaves ◽  
Young Leaves ◽  
Dry Seasons ◽  
Blue Monkeys ◽  
Blue Monkey ◽  
Wet And Dry Seasons

Abstract Background: By studying population size, activity patterns, diet, and ranging ecology of Boutourolini’s blue monkey (Cercopithecus mitis boutourlinii) we can get sufficient information to conserve the subspecies in the area. Boutourlini’s blue monkey is endemic subspecies found in the western and northwestern parts of Ethiopia. The study was conducted in Apini and Dokuma forests, northwestern Ethiopia, from October 2018 to June 2019. The block count method was used to estimate its total population size and scan sampling method was used to collect data for activity patterns, and diet. The ranging ecology of the study subspecies was determined for each group based on the point to point movements of the group between consecutive GPS locations recorded. Results: On average a total of 71 and 111 individuals of Boutourolini’s blue monkey were counted in Apini and Dokuma forests, respectively. Boutourolini’s blue monkey spent 47.5% and 48.6% of time feeding, 20.2% and 18.6% moving, and 14.1% and 13.5% resting by the Apini and Dokuma groups, respectively. The Apini group frequently fed on young leaves (52.8%), fruits (30.2%), and mature leaves (6.6%), while the Dokuma group fed on young leaves (39.8%), fruit 942.3%), and mature leaves (8.3%). Ranging ecology of Boutourolini’s blue monkey was 44.4 ha and 78.3 ha for the Apini group, and 51 ha and 56.9 ha for the Dokuma group during the wet and dry seasons, respectively. Conclusions: The total population size of blue monkeys in the Apini and Dikuma forests counted were different. Activity budgets vary during the wet and dry seasons. During the entire study period blue monkeys consumed different food items from the two forests. The home range size of blue monkeys during the two seasons was different in both groups and they traveled long distance during the dry season. As the habitats of Boutourolini’s blue monkey in the present study area is degraded due to various anthropogenic activities, there is a need to design strategies to minimize conservation problems of the subspecies in the area.

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