Endangered West African Chimpanzees Pan troglodytes verus (Schwarz, 1934) (Primates: Hominidae) in Senegal prefer Pterocarpus erinaceus, a threatened tree species, to build their nests: implications for their conservation

Ndiaye, Papa Ibnou; Galat‐Luong, Anh; Galat, Gérard; Nizinski, Georges

doi:10.11609/jott.o3603.5266-72

Cited by 9 publications

(21 citation statements)

References 25 publications

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“…The selection of nesting site, nest height and nest-bearing trees by chimpanzees described by several authors [Basabose and Yamagiwa, 2002;Furnichi and Hashimoto, 2004; and O 'Malley, 2008;Koops et al, 2012;Hernandez-Aguilar et al, 2013;Ndiaye et al, 2013b;Hakizimana et al, 2015] are also illustrated in the nesting behaviour of chimpanzees in Diaguiri. In this area, chimpanzees most often nested in woodland and grassland with isolated trees, while in Assirik, within the NKNP, chimpanzees nested less frequently in these habitats [Pruetz et al, 2008].…”

Section: Discussionmentioning

confidence: 87%

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Nest-Building Behaviour by Chimpanzees (Pan troglodytes verus) in the Non-Protected Area of Diaguiri (Kedougou, Senegal): Implications for Conservation

Ndiaye¹,

Badji²,

Lindshield³

et al. 2018

IJFP

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Diaguiri is a non-protected area situated in south-eastern Senegal. Chimpanzees (Pan troglodytes verus) have been living here since 1999 but information on the characteristics of their nest sites have been lacking until now. Furthermore, we implemented nest survey methods recently standardised to arid landscapes during a national chimpanzee survey. Variations in nest decay rates are poorly understood in savanna-woodland mosaic habitats. This study aims to describe in Diaguiri: (1) the distribution of chimpanzee nests and the location of their core sleeping area, (2) the tree species used for nest building, (3) the association between nests and nesting tree heights, and (4) differences in nest decay rates between habitats. We surveyed 43 km of chimpanzee nesting habitats and recorded 871 nests in gallery forest and woodland habitats between March 2015 and June 2016. Diaguiri chimpanzees used at least 17 tree species for nest building, and 58.8% of nests were in only 3 tree species: Pterocarpus erinaceus, Anogeissus leiocarpus and Diospyros mespiliformis. Nest decay rate was faster in gallery forests than in woodlands. These data are of great value for understanding habitat use by a Critically Endangered subspecies of savanna chimpanzee, for population density estimates of the species and for conservation programmes in this region and in savanna biomes.

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Section: Discussionmentioning

confidence: 87%

“…During the rainy season, the gallery forests are flooded. The month of May is a transition point between the dry and the rainy seasons [Ndiaye et al, 2013b].…”

Section: Study Site and Subjectsmentioning

confidence: 99%

Nest-Building Behaviour by Chimpanzees (Pan troglodytes verus) in the Non-Protected Area of Diaguiri (Kedougou, Senegal): Implications for Conservation

Ndiaye¹,

Badji²,

Lindshield³

et al. 2018

IJFP

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“…The presence of nearly half the nests being built in Pterocarpus erinaceus is consistent with a study conducted previously in this region, where approximately 25% of the nests found were also built in the same species (Ndiaye et al, 2013a). This tree species is also becoming harder to find outside of national parks (Ndiaye et al, 2013a).…”

Section: Nesting Patterns and Preferencessupporting

confidence: 90%

“…Senegal has two primary seasons, a dry season lasting from November to April or May, and a rainy season lasting from May or June to October (Carter et al, 2003). This is typical of a Sudano-Guinean climate (Ndiaye et al, 2013a;Ndiaye et al, 2013b). Habitat use for habituated chimpanzees, like the Fongoli community, varies depending on the season (Pruetz & Bertolani, 2009).…”

Section: Chimpanzee Ecologymentioning

confidence: 99%

“…There is evidence to suggest that chimpanzees have a preference for the nesting materials they use and the height at which they build their nests (Humle, 2003;Ndiaye et al, 2013a;Badji et al, 2017). This was seen at Bantan, where over 40% of the nests were constructed in the species Pterocarpus erinaceus, with Parkia biglobosa having the next highest concentration of nests (9%) (Figure 10, Figure 12).…”

Section: Nesting Patterns and Preferencesmentioning

confidence: 99%

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Influence of human disturbance on Western Chimpanzee (Pan troglodytes verus) nesting behavior in a savanna mosaic habitat, southeastern Senegal

Micheletti¹

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Chimpanzees (Pan troglodytes) in savanna landscapes

Lindshield

Hernández‐Aguilar

Korstjens

et al. 2021

Evolutionary Anthropology

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Chimpanzees (Pan troglodytes) are the only great apes that inhabit hot, dry, and open savannas. We review the environmental pressures of savannas on chimpanzees, such as food and water scarcity, and the evidence for chimpanzees' behavioral responses to these landscapes. In our analysis, savannas were generally associated with low chimpanzee population densities and large home ranges. In addition, thermoregulatory behaviors that likely reduce hyperthermia risk, such as cave use, were frequently observed in the hottest and driest savanna landscapes. We hypothesize that such responses are evidence of a “savanna landscape effect” in chimpanzees and offer pathways for future research to understand its evolutionary processes and mechanisms. We conclude by discussing the significance of research on savanna chimpanzees to modeling the evolution of early hominin traits and informing conservation programs for these endangered apes.

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Endangered West African Chimpanzees Pan troglodytes verus (Schwarz, 1934) (Primates: Hominidae) in Senegal prefer Pterocarpus erinaceus, a threatened tree species, to build their nests: implications for their conservation

Cited by 9 publications

References 25 publications

Nest-Building Behaviour by Chimpanzees (Pan troglodytes verus) in the Non-Protected Area of Diaguiri (Kedougou, Senegal): Implications for Conservation

Nest-Building Behaviour by Chimpanzees (Pan troglodytes verus) in the Non-Protected Area of Diaguiri (Kedougou, Senegal): Implications for Conservation

Influence of human disturbance on Western Chimpanzee (Pan troglodytes verus) nesting behavior in a savanna mosaic habitat, southeastern Senegal

Chimpanzees (Pan troglodytes) in savanna landscapes

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