Ape Abundance and Habitat Use in the Goualougo Triangle, Republic of Congo

  title={Ape Abundance and Habitat Use in the Goualougo Triangle, Republic of Congo},
  author={D. Morgan and C. Sanz and J. Onononga and S. Strindberg},
  journal={International Journal of Primatology},
Chimpanzee (Pan troglodytes troglodytes) and western gorilla (Gorilla gorilla gorilla) populations in central Africa are rapidly declining as a result of disease epidemics, commercial bushmeat hunting, and habitat destruction. Our main objective was to estimate the absolute abundance and habitat utilization of chimpanzees and gorillas in the intact forests of the Goualougo Triangle in the Republic of Congo, and in an adjacent area in which selective logging will take place in the near future… Expand

Figures and Tables from this paper

Population Status of Pan troglodytes verus in Lagoas de Cufada Natural Park, Guinea-Bissau
It is concluded that the continuous disappearance of suitable habitat (e.g. the replacement of LCNP's dense forests by monocultures of cashew plantations) may be compromising the future of one of the most threatened Guinean coastal chimpanzee populations. Expand
Comparing ape densities and habitats in northern Congo: surveys of sympatric gorillas and chimpanzees in the Odzala and Ndoki regions
The results indicated that even the largest remaining ape populations in intact and protected forests are susceptible to sudden and dramatic declines, and the importance of intensifying monitoring efforts and further refinement of ape survey methods is emphasized. Expand
Guns, germs, and trees determine density and distribution of gorillas and chimpanzees in Western Equatorial Africa
A range-wide assessment of sympatric western lowland gorillas and central chimpanzees using the largest survey data set ever assembled for these taxa, which predicted density across each taxon’s geographic range, allowing for overall abundance to be significantly higher than previous estimates. Expand
African apes coexisting with logging: Comparing chimpanzee (Pan troglodytes troglodytes) and gorilla (Gorilla gorilla gorilla) resource needs and responses to forestry activities
Abstract The extraction of timber often conflicts with the well-being and conservation of wildlife. In particular, there is a need to better understand the impact of tree removal under selectiveExpand
The relationship between the abundance of the Nigeria-Cameroon chimpanzee (Pan troglodytes ellioti) and its habitat: a conservation concern in Mbam-Djerem National Park, Cameroon
It is found that habitat features, slope and altitude likely play a role in shaping patterns of chimpanzee nesting ecology, and further studies need to be focused on nest decay rates and phenology of useful plants in order to model chimpanzee abundance and distribution in Mbam-Djerem National Park. Expand
High Population Density of Pan troglodytes verus in the Haut Niger National Park, Republic of Guinea: Implications for Local and Regional Conservation
The results highlight the importance of gallery forests as key habitat for chimpanzees in the savannah biome and recommend that more attention be paid to the conservation of this habitat in land management and conservation planning schemes. Expand
Preliminary bonobo and chimpanzee nesting by habitat type in the northern Lac Tumba Landscape, Democratic Republic of Congo
Abstract Knowing how habitat determines the distribution of greatapes is essential for understanding their ecology and con-servation requirements. Habitats in the northern LacTumba Landscape whereExpand
Ensemble models of habitat suitability relate chimpanzee (Pan troglodytes) conservation to forest and landscape dynamics in Western Africa
Pan troglodytes verus is considered one of the most endangered primates in the world due to habitat loss or degradation, and it is considered extinct in several regions of West-Africa. This studyExpand
Survey of Raphia swamp forest, Republic of Congo, indicates high densities of Critically Endangered western lowland gorillas Gorilla gorilla gorilla
Abstract The Critically Endangered western lowland gorilla Gorilla gorilla gorilla is found at high density in the swamp forests of Lac Télé Community Reserve, northern Republic of Congo. PreliminaryExpand
Nest count is not an appropriate method to estimate abundance of gorillas and chimpanzees where both species live sympatrically. To apply an alternative method that could estimate their abundanceExpand


Densities, Distributions, and Seasonal Movements of Gorillas and Chimpanzees in Swamp Forest in Northern Congo
The conservation of gorillas (Gorilla spp.) and chimpanzees (Pan troglodytes) depends upon knowledge of their densities and distribution throughout their ranges. However, information about apeExpand
Survey of gorillas (Gorilla gorilla gorilla) and chimpanzees (Pan troglodytes troglodytes) in Southwestern Cameroon
In unlogged forest, old secondary forests and areas of recent logging with large remaining patches of primary forest, significantly higher densities were calculated than inside the more heavily exploited logging concession. Expand
Population Density and Ranging Pattern of Chimpanzees in Kahuzi-Biega National Park, Zaire: A Comparison with a Sympatric Population of Gorillas
A population census of chimpanzees (Pan troglodytes schweinfurthil) was conducted in the original part of Kahuzi-Biega National Park. Zaire. The census provides the first estimate of the density ofExpand
Survey of Savanna Chimpanzees (Pan troglodytes verus) in Southeastern Sénégal
The purpose of MAPP was to initiate long‐term research of chimpanzees in southeastern Sénégal, as a follow‐up to the Stirling African Primate Project of the 1970s, and sought to replicate the standards set by the SAPP project, except when technological innovations allowed improvement in data collection procedures. Expand
Population Density of Chimpanzees and Gorillas in the Petit Loango Reserve, Gabon: Employing a New Method to Distinguish Between Nests of the Two Species
We studied the vegetation and population density of chimpanzees (Pan troglodytes troglodytes) and gorillas (Gorilla gorilla gorilla) in the Petit Loango Reserve, Gabon. The study site consists mainlyExpand
Ebola and the decline of gorilla Gorilla gorilla and chimpanzee Pan troglodytes populations in Minkebe Forest, north-eastern Gabon
Data from nearby sites indicate that the epidemic was limited to the Minkebe Forest, and a catastrophic decline in ape populations in the area is believed to have been caused by a disease epidemic. Expand
Nationwide census of gorilla (gorilla g. gorilla) and chimpanzee (Pan t. troglodytes) populations in Gabon
  • C. Tutin, M. Fernandez
  • Geography, Medicine
  • American journal of primatology
  • 1984
Gabon's large areas of undisturbed primary forest offer exceptional potential for conservation, not only of gorillas and chimpanzees, but also of the intact tropical rain forest ecosystems which they inhabit. Expand
Catastrophic ape decline in western equatorial Africa
Survey results conservatively indicate that ape populations in Gabon declined by more than half between 1983 and 2000, and gorillas and common chimpanzees should be elevated immediately to ‘critically endangered’ status. Expand
Distinguishing between the nests of sympatric chimpanzees and gorillas
Summary 1 Our current inability to estimate precisely the population sizes of chimpanzees and gorillas across much of the Congo Basin has been detrimental to the development of conservationExpand
Saving the gorillas (Gorilla g. gorilla) and chimpanzees (Pan t. troglodytes) of the Congo Basin.
  • C. Tutin
  • Biology, Medicine
  • Reproduction, fertility, and development
  • 2001
There are some reasons for optimism about the future of the Congo Basin apes: levels of threat remain relatively low; and conservation of tropical rainforests has become a priority of the international community; and knowledge of the ecological needs of wild apes has increased and non-invasive techniques now exist to monitor population health. Expand