Population Status of Pan troglodytes verus in Lagoas de Cufada Natural Park, Guinea-Bissau

Journal article


Carvalho, J. S., Maques, T. A. and Vicente, L. 2013. Population Status of Pan troglodytes verus in Lagoas de Cufada Natural Park, Guinea-Bissau. PLos ONE. 8 (8), p. e71527. https://doi.org/10.1371/journal.pone.0071527
AuthorsCarvalho, J. S., Maques, T. A. and Vicente, L.
Abstract

The western chimpanzee, Pan troglodytes verus, has been classified as Endangered on the IUCN Red List since 1988.
Intensive agriculture, commercial plantations, logging, and mining have eliminated or degraded the habitats suitable for P.t. verus over a large part of its range. In this study we assessed the effect of land-use change on the population size and density of chimpanzees at Lagoas de Cufada Natural Park (LCNP), Guinea-Bissau. We further explored chimpanzee
distribution in relation to landscape-level proxies of human disturbance. Nest count and distance-sampling methods were
employed along 11 systematically placed linear transects in 2010 and 2011. Estimated nest decay rate was 293.9 days
(%CV = 58.8). Based on this estimate of decay time and using the Standing-Crop Nest Count Method, we obtained a habitat weighted average chimpanzee density estimate for 2011 of 0.22 nest building chimpanzees/km2 (95% CI 0.08–0.62), corresponding to 137 (95% CI 51.0–390.0) chimpanzees for LCNP. Human disturbance had a negative influence on
chimpanzee distribution as nests were built farther away from human settlements, roads, and rivers than if they were
randomly distributed, coinciding with the distribution of the remaining patches of dense canopy forest. We conclude 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. We
discuss strategies to ensure long-term conservation in this important refuge for this chimpanzee subspecies at its
westernmost margin of geographic distribution.

Year2013
JournalPLos ONE
Journal citation8 (8), p. e71527
PublisherPLOS ONE
Digital Object Identifier (DOI)https://doi.org/10.1371/journal.pone.0071527
Accepted author manuscript
License
Publisher's version
Output statusPublished
Publication process dates
Deposited22 Sep 2022
Supplemental file
Permalink -

https://repository.derby.ac.uk/item/98568/population-status-of-pan-troglodytes-verus-in-lagoas-de-cufada-natural-park-guinea-bissau

Download files

  • 1
    total views
  • 0
    total downloads
  • 1
    views this month
  • 0
    downloads this month

Export as

Related outputs

Spatio-temporal changes in chimpanzee density and abundance in the Greater Mahale Ecosystem, Tanzania
Carvalho, J. S., Stewart, F. A., Marques, T. A., Bonnin, N., Pintea, L., Chitayat, A., Ingram, R., Moore, R. J. and Piel. A. K. 2022. Spatio-temporal changes in chimpanzee density and abundance in the Greater Mahale Ecosystem, Tanzania. Ecological Applications. pp. 1-41. https://doi.org/doi.org/10.1002/eap.2715
Range‐wide indicators of African great ape density distribution
Carvalho, J. S. 2021. Range‐wide indicators of African great ape density distribution. American Journal of Primatology. 83 (12), p. e23338. https://doi.org/10.1002/ajp.23338
Quantitative Estimates of Glacial Refugia for Chimpanzees (Pan troglodytes) since the Last Interglacial (120,000 BP)
Carvalho, J. S. 2021. Quantitative Estimates of Glacial Refugia for Chimpanzees (Pan troglodytes) since the Last Interglacial (120,000 BP). American Journal of Primatology. 83 (10), pp. 1-18. https://doi.org/10.1002/ajp.23320
Predicting Range Shifts of African Apes and Effectiveness of Protected Areas under Global Change Scenarios
Carvalho, J.S., Bruce, G., Maisels, F., Williamson, E. A., Wich, S., Sop, T. and Kühl, H. S. 2021. Predicting Range Shifts of African Apes and Effectiveness of Protected Areas under Global Change Scenarios. Gorilla Journal. 63, pp. 16-18.
Predicting range shifts of African apes under global change scenarios
Carvalho, J. S. 2021. Predicting range shifts of African apes under global change scenarios. Diversity and Distributions. 27, pp. 1663-1679. https://doi.org/DOI:10.1111/ddi.13358
Advancing Conservation Planning for Western Chimpanzees Using IUCN/SSC A.P.E.S. – The Case of a Taxon-Specific Database
Carvalho, J. S. 2019. Advancing Conservation Planning for Western Chimpanzees Using IUCN/SSC A.P.E.S. – The Case of a Taxon-Specific Database. Environmental Research Letters. 14, pp. 1-13. https://doi.org/10.1088/1748-9326/ab1379
Characteristics of Positive Deviants in Western Chimpanzee Populations
Carvalho, J. S. 2019. Characteristics of Positive Deviants in Western Chimpanzee Populations. Frontiers in Ecology and Evolution. 7, pp. 1-14. https://doi.org/10.3389/fevo.2019.00016
A global risk assessment of primates under climate and land use/cover scenarios
Carvalho, J. S., Bruce, G., Rebelo, H., Bocksberger, G., Meyer. C. F. J., Wich. S. and Kuehl, H. S. 2019. A global risk assessment of primates under climate and land use/cover scenarios. Global Change Biology. 25 (9), pp. 3163-3178. https://doi.org/10.1111/gcb.14671
Chimpanzee (Pan troglodytes verus) Diet Composition and Food Availability in a Human-Modified Landscape at Lagoas de Cufada Natural Park, Guinea-Bissau
Carvalho, J. S., Vicente, L. and Marques, T. A. 2015. Chimpanzee (Pan troglodytes verus) Diet Composition and Food Availability in a Human-Modified Landscape at Lagoas de Cufada Natural Park, Guinea-Bissau. International Journal of Primatology. 36, pp. 802-822. https://doi.org/10.1007/s10764-015-9856-y
Where to Nest? Ecological Determinants of Chimpanzee Nest Abundance and Distribution at the Habitat and Tree Species Scale
Carvalho, J. S., Meyer, C. F. J., Vicente, L. and Marques, T. A. 2014. Where to Nest? Ecological Determinants of Chimpanzee Nest Abundance and Distribution at the Habitat and Tree Species Scale. American Journal of Primatology. 77, pp. 186-199. https://doi.org/10.1002/ajp.22321