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The distribution of plant consumption traits across habitat types and the patterns of fruit availability suggest a mechanism of coexistence of two sympatric frugivorous mammals

(2019) ECOLOGY AND EVOLUTION. 9(8). p.4473-7794
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Abstract
Understanding the mechanisms governing the coexistence of organisms is an important question in ecology, and providing potential solutions contributes to conservation science. In this study, we evaluated the contribution of several mechanisms to the coexistence of two sympatric frugivores, using western lowland gorillas (Gorilla gorilla gorilla) and central chimpanzees (Pan troglodytes troglodytes) in a tropical rainforest of southeast Cameroon as a model system. We collected great ape fecal samples to determine and classify fruit species consumed; we conducted great ape nest surveys to evaluate seasonal patterns of habitat use; and we collected botanical data to investigate the distribution of plant species across habitat types in relation to their “consumption traits” (which indicate whether plants are preferred or fallback for either gorilla, chimpanzee, or both). We found that patterns of habitat use varied seasonally for both gorillas and chimpanzees and that gorilla and chimpanzee preferred and fallback fruits differed. Also, the distribution of plant consumption traits was influenced by habitat type and matched accordingly with the patterns of habitat use by gorillas and chimpanzees. We show that neither habitat selection nor fruit preference alone can explain the coexistence of gorillas and chimpanzees, but that considering together the distribution of plant consumption traits of fruiting woody plants across habitats as well as the pattern of fruit availability may contribute to explaining coexistence. This supports the assumptions of niche theory with dominant and subordinate species in heterogeneous landscapes, whereby a species may prefer nesting in habitats where it is less subject to competitive exclusion and where food availability is higher. To our knowledge, our study is the first to investigate the contribution of plant consumption traits, seasonality, and habitat heterogeneity to enabling the coexistence of two sympatric frugivores.
Keywords
ecological niche, fallback food, fruit phenology, fruit preference, habitat selection, Niche partitioning in primates, WESTERN LOWLAND GORILLAS, LOANGO NATIONAL-PARK, FALLBACK FOODS, LOPE RESERVE, BEHAVIORAL ECOLOGY, FEEDING ECOLOGY, ENERGY-INTAKE, SWAMP FOREST, RESOURCE USE, BAI-HOKOU

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Chicago
Tédonzong Dongmo, Luc Roscelin, Jacob Willie, Nikki Tagg, Martin N Tchamba, Tsi Evaristus Angwafo, Ada Myriane Patipe Keuko, Jacques Keumo Kuenbou, Charles‐Albert Petre, and Luc Lens. 2019. “The Distribution of Plant Consumption Traits Across Habitat Types and the Patterns of Fruit Availability Suggest a Mechanism of Coexistence of Two Sympatric Frugivorous Mammals.” Ecology and Evolution 9 (8): 4473–7794.
APA
Tédonzong Dongmo, L. R., Willie, J., Tagg, N., Tchamba, M. N., Angwafo, T. E., Keuko, A. M. P., Kuenbou, J. K., et al. (2019). The distribution of plant consumption traits across habitat types and the patterns of fruit availability suggest a mechanism of coexistence of two sympatric frugivorous mammals. ECOLOGY AND EVOLUTION, 9(8), 4473–7794.
Vancouver
1.
Tédonzong Dongmo LR, Willie J, Tagg N, Tchamba MN, Angwafo TE, Keuko AMP, et al. The distribution of plant consumption traits across habitat types and the patterns of fruit availability suggest a mechanism of coexistence of two sympatric frugivorous mammals. ECOLOGY AND EVOLUTION. 2019;9(8):4473–7794.
MLA
Tédonzong Dongmo, Luc Roscelin et al. “The Distribution of Plant Consumption Traits Across Habitat Types and the Patterns of Fruit Availability Suggest a Mechanism of Coexistence of Two Sympatric Frugivorous Mammals.” ECOLOGY AND EVOLUTION 9.8 (2019): 4473–7794. Print.
@article{8610628,
  abstract     = {Understanding the mechanisms governing the coexistence of organisms is an important question in ecology, and providing potential solutions contributes to conservation science. In this study, we evaluated the contribution of several mechanisms to the coexistence of two sympatric frugivores, using western lowland gorillas (Gorilla gorilla gorilla) and central chimpanzees (Pan troglodytes troglodytes) in a tropical rainforest of southeast Cameroon as a model system. We collected great ape fecal samples to determine and classify fruit species consumed; we conducted great ape nest surveys to evaluate seasonal patterns of habitat use; and we collected botanical data to investigate the distribution of plant species across habitat types in relation to their “consumption traits” (which indicate whether plants are preferred or fallback for either gorilla, chimpanzee, or both). We found that patterns of habitat use varied seasonally for both gorillas and chimpanzees and that gorilla and chimpanzee preferred and fallback fruits differed. Also, the distribution of plant consumption traits was influenced by habitat type and matched accordingly with the patterns of habitat use by gorillas and chimpanzees. We show that neither habitat selection nor fruit preference alone can explain the coexistence of gorillas and chimpanzees, but that considering together the distribution of plant consumption traits of fruiting woody plants across habitats as well as the pattern of fruit availability may contribute to explaining coexistence. This supports the assumptions of niche theory with dominant and subordinate species in heterogeneous landscapes, whereby a species may prefer nesting in habitats where it is less subject to competitive exclusion and where food availability is higher. To our knowledge, our study is the first to investigate the contribution of plant consumption traits, seasonality, and habitat heterogeneity to enabling the coexistence of two sympatric frugivores.},
  author       = {Tédonzong Dongmo, Luc Roscelin and Willie, Jacob and Tagg, Nikki and Tchamba, Martin N and Angwafo, Tsi Evaristus and Keuko, Ada Myriane Patipe and Kuenbou, Jacques Keumo and Petre, Charles‐Albert and Lens, Luc},
  issn         = {2045-7758},
  journal      = {ECOLOGY AND EVOLUTION},
  keywords     = {ecological niche,fallback food,fruit phenology,fruit preference,habitat selection,Niche partitioning in primates,WESTERN LOWLAND GORILLAS,LOANGO NATIONAL-PARK,FALLBACK FOODS,LOPE RESERVE,BEHAVIORAL ECOLOGY,FEEDING ECOLOGY,ENERGY-INTAKE,SWAMP FOREST,RESOURCE USE,BAI-HOKOU},
  language     = {eng},
  number       = {8},
  pages        = {4473--7794},
  title        = {The distribution of plant consumption traits across habitat types and the patterns of fruit availability suggest a mechanism of coexistence of two sympatric frugivorous mammals},
  url          = {http://dx.doi.org/10.1002/ece3.5017},
  volume       = {9},
  year         = {2019},
}

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