New Range Limits of the Sun-Tailed Monkey,<i>Cercopithecus solatus</i>, in Central Gabon

Coad, Lauren; Tanga, Jean-Jacques; Maisels, Fiona; Abernethy, Katharine; Bout, Nicolas; Fay, Mike; Henschel, Philipp; Lenglet, Georges; Mihindou, Yves; Puit, Marielle; Starkey, Malcolm; White, Lee; Pauwels, Olivier S. G.

doi:10.1896/052.025.0108

Cited by 5 publications

(6 citation statements)

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“…The sun‐tailed monkey is easily recognizable by its reddish‐brown back, white throat collar, and long tail ending in bright yellow–orange 23,25 . About 16% of its range is protected in Lopé, Waka, and Birougou National Parks but its highest density is in the Foret des Abeilles, which is unprotected 25,26 . Being semi‐terrestrial, A. solatus is vulnerable to ground snares, making commercial hunting a growing threat, 25 and A. solatus is no longer recorded at some villages in its range, because of widespread hunting 26,27 .…”

Section: Introductionmentioning

confidence: 99%

“…23,25 About 16% of its range is protected in Lopé, Waka, and Birougou National Parks but its highest density is in the Foret des Abeilles, which is unprotected. 25,26 Being semi-terrestrial, A. solatus is vulnerable to ground snares, making commercial hunting a growing threat, 25 and A. solatus is no longer recorded at some villages in its range, because of widespread hunting. 26,27 As a result, the population of A. solatus, which remains unknown may be subject to considerable decline.…”

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confidence: 99%

“…25,26 Being semi-terrestrial, A. solatus is vulnerable to ground snares, making commercial hunting a growing threat, 25 and A. solatus is no longer recorded at some villages in its range, because of widespread hunting. 26,27 As a result, the population of A. solatus, which remains unknown may be subject to considerable decline. Furthermore, numerous potential threats such as habitat loss, mainly due to logging, and vulnerability to changing fruiting patterns under climate change could affect the geographic distribution of A. solatus, 24 making A. solatus a species of immediate and critical conservation concern.…”

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confidence: 99%

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Preliminary assessment of gastrointestinal parasites of the sun‐tailed monkey (Allochrocebus solatus) in a semi‐free‐ranging colony

Dibakou

Ngoubangoye

Boundenga

et al. 2022

J of Medical Primatology

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Background The occurrence of gastrointestinal parasites in the sun‐tailed monkey (Allochrocebus solatus) at the CIRMF primatology center is unknown. We, therefore, assessed the presence and richness (number of different parasite taxa) of gastrointestinal parasites in a semi‐free‐ranging colony of A. solatus. Methods A total of 46 fecal samples were screened using a modified McMaster technique for fecal egg counts. Results In the 46 samples collected, seven taxa of gastrointestinal parasites, including protozoa and nematodes were identified. The most prevalent parasite was strongyles parasites (98%), followed by Trichuris spp. (72%), Strongyloides spp. (67%) and Entamoeba coli (65%). Balantioides coli (33%), Endolimax nana (25%), and Spirurid eggs (26%) were only found in a minority of the animals. Conclusions This study contributes new host records of gastrointestinal parasites in semi‐free‐ranging A. solatus and highlights the need to investigate the health of this species and implement proper precautions in the management of this colony.

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Section: Introductionmentioning

confidence: 99%

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confidence: 99%

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confidence: 99%

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Preliminary assessment of gastrointestinal parasites of the sun‐tailed monkey (Allochrocebus solatus) in a semi‐free‐ranging colony

Dibakou

Ngoubangoye

Boundenga

et al. 2022

J of Medical Primatology

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“…Recently, some studies have been using camera-traps for a various purpose, e.g. making a species list of large ground-dwelling mammals (Treves et al 2010); monitoring animals visiting "bai" (large forest clearings with mineral-rich soil and water) (Gessner et al 2014); estimating the relative and absolute abundance of animals such as leopards (Henschel et al 2011), or great apes and elephants (Head et al 2012, Nakashima et al 2013b; detecting rare monkeys (Coad et al 2010, Easton et al 2011 or golden cats (Aronsen 2010); monitoring die-off of large ungulates (Elkan et al 2009); and identifying seed disperser/predators (Babweteera et al 2007, Nyiramana et al 2011, Beaune et al 2012, Moupela et al 2013. Given that a lot of limitations have not been solved in conventional methods including direct sightings (e.g.…”

Section: Introductionmentioning

confidence: 99%

Inventorying medium- and large-sized mammals in the African lowland rainforest using camera trapping

Nakashima

2015

Tropics

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I compiled a list of medium-and large-sized mammals (excluding Rodentia) in Moukalaba-Doudou National Park, Gabon. Additionally, I evaluated the efficiency of camera trapping for inventorying these animals. I placed 125 camera traps (set to "video mode" ) in forest and savannah in the eastern regions of the park, and compared my data with visual and acoustic observational records from the study area since 1999. I confirmed the occurrence of 38 species (11 Primates, 13 Carnivora, nine Ungulates, and five other taxa). During 4165 camera-days, my camera traps detected 29 out of the 38 species (76 %), including 10 newly-recorded species in the study area. However, a high proportion of cameras (40 %) in savannah were destroyed by Loxodonta africana. Furthermore, using this technique, it was difficult to detect arboreal species. It was also difficult to discriminate morphologically similar species (Cephalophus spp., Phataginus spp., and Galago spp.) from the captured images. These species can be more appropriately detected by visual sighting, acoustic hearing, and molecular techniques, suggesting that a combination of these techniques may increase the inventory efficiency. The number of forest-dwelling herbivores was lower in Moukalaba than in four other sites at or near Gabon, possibly because of separation from large Pleistocene refuges by a natural boundary. Nevertheless, Moukalaba harbors two savannah-dwellers─Kobus ellipsiprymnus and Herpestes ichneumon─which inhabit only a few protected areas of Gabon. The forest is invading the savannah, and therefore there is a requirement for regular burning, which must be enforced to preserve the totality of the existing biodiversity.

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“…Due to its very cryptic nature, this guenon species was only first described in 1984 [Harrison, 1988]. It is endemic to a restricted forest area in Gabon [Brugiere et al, 1998;Gautier et al, 1992], although its precise distribution area is still debated [Coad et al, 2010;Motsch et al, 2011]. Most of the current knowledge concerning C. solatus is derived from the only captive colony of this species in the world, which is housed in a semifree-ranging rainforest enclosure at the Centre International de Recherches Médicales de Franceville (CIRMF), Gabon.…”

Section: Introductionmentioning

confidence: 99%

Clinical Biochemistry and Hematology of the Elusive Sun‐Tailed Monkey (Cercopithecus solatus) in Gabon: Inaugural Data From the Only Semifree Ranging Colony in the World

Motsch

Gonzalez

Verrier

2012

American J Primatol

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Clinical blood biochemistry and hematology are valuable tools to evaluate health and welfare in many animal species. In order to document the general biology of one of the most poorly known nonhuman primate species, and contribute to its conservation, the clinical blood biochemistry and hematology of the sun-tailed monkey (Cercopithecus solatus Harrisson) was investigated in its range of endemicity in Gabon. Data derived from 26 years of clinical monitoring of the only semicaptive colony of this species in the world, housed at CIRMF (Franceville, Gabon), were analyzed in order to establish reference values of age-sex classes. Consistent with previous reports in other primate species, age and sex significantly affected a number of biochemical and hematological parameters in C. solatus. Hematological analyses demonstrated significant differences in red blood cells, hemoglobin (HB), and hematocrit (HT), with males showing significantly greater values than females. In contrast, neutrophil counts were greater in females. An ontogenetic effect was detected for HB, HT, eosinophil, and monocyte counts, while lymphocytes significantly decreased with age. Biochemical analyses also showed significant differences, with females displaying greater cholesterol and alanine aminotransferase levels. Increase in levels of blood urea and aspartate aminotransferase coupled with decrease in albumin in old individuals suggested declining kidney, liver, and muscle functions with age. Interspecific comparisons were conducted and the effects of the unique semifree-ranging setting on the validity and value of the results presented are discussed. The reference values established will be useful in further ecological, parasitological, and virological studies of the sun-tailed monkey.

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New Range Limits of the Sun-Tailed Monkey,Cercopithecus solatus, in Central Gabon

Cited by 5 publications

References 9 publications

Preliminary assessment of gastrointestinal parasites of the sun‐tailed monkey (Allochrocebus solatus) in a semi‐free‐ranging colony

Preliminary assessment of gastrointestinal parasites of the sun‐tailed monkey (Allochrocebus solatus) in a semi‐free‐ranging colony

Inventorying medium- and large-sized mammals in the African lowland rainforest using camera trapping

Clinical Biochemistry and Hematology of the Elusive Sun‐Tailed Monkey (Cercopithecus solatus) in Gabon: Inaugural Data From the Only Semifree Ranging Colony in the World

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