scholarly journals Versatility in a loud call: Dual affiliative and agonistic functions in the blue monkey boom

Ethology ◽  
2019 ◽  
Vol 126 (1) ◽  
pp. 10-23
Author(s):  
James L. Fuller ◽  
Marina Cords
Keyword(s):  
Loud Call ◽  
Blue Monkey

scholarly journals Reluctant males: why blue monkey males reject female sexual advances

Behaviour ◽  
2019 ◽  
Vol 157 (1) ◽  
pp. 33-58 ◽  
Author(s):  
Sofia Schembari ◽  
Marina Cords
Keyword(s):  
Sexual Selection ◽  
Social Context ◽  
Wild Population ◽  
Market Models ◽  
Selection Theory ◽  
Sexual Selection Theory ◽  
Blue Monkey ◽  
To Receive ◽  
Number Of Males

Abstract Classical sexual selection theory predicts that males should mate eagerly, yet blue monkey males often reject females’ sexual invitations. We evaluated how males’ responses to female solicitations related to female characteristics, number of males and conceptive females present, and the male’s recent copulations. Using 12 years of data from a wild population, we found that males accepted only 20% of female solicitations. Odds of acceptance (copulation) increased for conceptive females, for females with whom the male copulated recently, and when fewer males were present. Odds of accepting nulliparous females decreased when more conceptive females were available, consistent with market models. Male responses did not relate to female rank or matings with other females the same day. When males responded negatively, nulliparous females were especially likely to receive aggression vs. mere refusal. Overall, males’ decisions to mate with willing females depended both on female characteristics, especially fertility, and on social context.

scholarly journals Low Geographic and Subspecific Variation in the Loud Call of the Widespread and Phenotypically Cryptic Northern Lesser Galago (Galago senegalensis) Suggests Taxonomic Uniformity

2019 ◽  
Vol 90 (Suppl. 5) ◽  
pp. 300-318 ◽  
Author(s):  
Magdalena S. Svensson ◽  
Thomas M. Butynski ◽  
Yvonne A. de Jong ◽  
Simon K. Bearder ◽  
Irena Schneiderová ◽  
...  
Keyword(s):  
Loud Call ◽  
Galago Senegalensis

Life-Phase Related Changes in Male Loud Call Characteristics and Testosterone Levels in Wild Thomas Langurs

2003 ◽  
Vol 24 (6) ◽  
pp. 1251-1265 ◽  
Author(s):  
S. A. Wich ◽  
D. J. van der Post ◽  
M. Heistermann ◽  
U. Möhle ◽  
J. A. R. A. M. van Hooff ◽  
...  
Keyword(s):  
Testosterone Levels ◽  
Loud Call ◽  
Life Phase

Subspecific divergence in a loud call of the ruffed lemur (Varecia variegata)

1985 ◽  
Vol 9 (4) ◽  
pp. 295-304 ◽  
Author(s):  
Joseph M. Macedonia ◽  
Linda L. Taylor
Keyword(s):  
Loud Call ◽  
Varecia Variegata ◽  
Ruffed Lemur

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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