Gibson L, Lee MT, Koh LP, Brook BW, Gardner TA, et al. (2011) Primary forests are irreplaceable for sustaining tropical biodiversity. Nature 678: 378-383.
Dirzo R, Raven RH (2003) Global state of biodiversity and loss. Annu Rev Environ Resour 28: 137-167.
Laurance WF (1999) Reflections on the tropical deforestation crisis. Biol Conserv 91: 109-117.
Laurance WF, Peres CA (2006) Emerging threats to tropical forests. Chicago: University of Chicago Press. 520 p.
Laurance WF, Useche CD, Rendeiro J, Kalka M, Bradshaw CJA, et al. (2012) Averting biodiversity collapse in tropical forest protected areas. Nature 489: 290-294.
Mahli Y, Adu-Bredu S, Asare AR, Lewis SL, Mayaux P (2013) African rainforests: past, present and future. Philos Trans R Soc London B 368: 1-10.
Chape C, Harrison J, Spalding M, Lysenko I (2005) Measuring the extent and effectiveness of protected areas as an indicator for meeting global biodiversity targets. Philos Trans R Soc London B 360: 443-445.
Jenkins CN, Joppa L (2009) Expansion of the global protected area system. Biol Conserv 142: 2166-2174.
Coad L, Leverington F, Burgess N, Cuadros I, Geldmann J, et al. (2013) Progress towards the CBD Protected Area Management Effectiveness targets. PARKS 19: 1-12.
Wittemyer G, Elsen P, Bean WT, Coleman A, Burton O, et al. (2008) Accelerated human population growth at protected areas edges. Science 321: 123-126.
Newmark WD (2008) Isolation of African Protected Areas. Front Ecol Environ 6: 321-328.
Wilkie DS, Bennett EL, Peres CA, Cunningham AA (2011) The empty forest revisited. Ann N Y Acad Sci1223: 120-128.
Abernethy KA, Coad L, Taylor G, Lee ME, Maisels F (2013) Extent and ecological consequences of hunting in Central African rainforests in the twenty-first century. Philos Trans R Soc London B 368: 1-11.
Isaac NJ, Cowlishaw G (2004) How species respond to multiple extinction threats. Proc R Soc Lond B 271: 1135-1141.
DiMarco M, Buchanan GM, Szantoi Z, Holmgren M, Grottolo Marasini G, et al. (2014) Drivers of extinction risk in African mammals: the interplay of distribution state, human pressure, conservation response and species biology. Philos Trans R Soc London B 369: 1-13.
Bruner AG, Gullison RE, Rice RE, da Fonseca GAB (2001) Effectiveness of parks in protecting tropical biodiversity. Science 291: 125-127.
Craigie ID, Baillie JEM, Balmford A (2010) Large mammal population declines in Africa's protected areas. Biol Conserv 143: 2221-2228.
Oates JF, Abedi-Lartey M, McGraw SW, Struhsaker TT, Whitesides GH (2000) Extinction of a West African red colobus monkey. Conserv Biol 14: 1526-1532.
Campbell G, Kuehl H, N'Goran PK, Boesch C (2008) Alarming decline of West African chimpanzees in Cote d'Ivoire. Curr Biol 18: 903-904.
Greengrass EJ (2009) Chimpanzees are close to extinction in Southwest Nigeria. Primate Conservation 24: 1-7.
Brashares JS, Arcese P, Sam MK (2001) Human demography and reserve size predict wildlife extinction in West Africa. Proc R Soc Lond B 268: 2473-2478.
Tranquilli S, Abedi-Lartey M, Amsini F, Arranz L, Asamoah A, et al. (2012) Lack of Conservation effort rapidly increases African great ape extinction risk. Conserv Lett 5: 48-55.
Sinclair ARE, Arcese P (1995) Serengeti II: dynamics and management, and conservation of an ecosystem. Chicago: University of Chicago Press. 673 p.
Hilborn R, Arcese P, Borner M, Hando J, Hopcraft G, et al. (2006) Effective enforcement in a conservation area. Science 314: 1265-1266.
Wilkie D, Carpenter JF, Zhang Q (2001) The under-financing of protected areas in the Congo Basin: so many parks and so little willingness-to-pay. Biodivers Conserv 10: 691-709.
Leader-Williams N, Albon SD (1988) Allocation of resources for conservation. Nature 336: 533-535.
Blom A (2004) An estimate of the costs of an effective system of protected areas in the Niger Delta - Congo Basin Forest Region. Biodivers Conserv 13: 2661-2678.
Hockings M (2003) Systems for assessing the effectiveness of management in protected areas. BioScience 53: 823-832.
Geldmann J, Barnes M, Coad L, Craigie ID, Hockings M, et al. (2013) Effectiveness of terrestrial protected areas in reducing habitat loss and population declines. Biol Conserv 161: 230-238.
Blom A, van Zalinge R, Mbea E, Heitkönig IMA, Prins HHT (2004) Human impact on wildlife populations within a protected Central African forest. Afr J Ecol 42: 23-31.
Remis MJ, Kpanou JB (2010) Primate and ungulate abundances in response to multi-use zoning and human extractive activities in a Central African Reserve. Afr J Ecol 49: 70-80.
Plumptre AJ, Masozera M, Vedder A (2001) The impact of civil war on the conservation of protected areas in Rwanda. Washington, D.C.: Biodiversity Support Program, World Wildlife Fund Inc. 31 p.
Jachmann H (2008) Monitoring law-enforcement performance in nine protected areas in Ghana. Biol Conserv 141: 89-99.
IUCN (2013) IUCN Red List of Threatened Species. Version 2013.2. Available: www.iucnredlist.org. Accessed 19 December 2013.
Baayen RH (2008) Analyzing linguistic data. Cambridge: Cambridge University Press. 368 p.
Zar JH (1999) Biostatistical analysis. New Jersey: Prentice Hall. 663 p.
Buckland ST, Burnham KP, Augustin NH (1997) Model selection: an integral part of inference. Biometrics 53: 603-618.
Johnson JB, Omland KS (2004) Model selection in ecology and evolution. Trends Ecol Evol 19: 101-108.
Symonds MRE, Moussalli A (2011) A brief guide to model selection, multimodel inference and model averaging in behavioural ecology using Akaike's information criterion. Behav Ecol Sociobiol 65: 13-21.
R Development Core Team (2010) R: a language and environment for statistical computing. R Foundation for statistical computing. Vienna: Austria.
Bates D, Maechler M (2010) Lme4: Linear mixed-effects models using S4 classes. R package version 0.999375-34.
Venables WN, Ripley BD (2002) Modern applied statistics with S. New York: Springer. 548 p.
Leverington F, Costa KL, Courrau J, Pavese H, Nolte C, et al. (2010) Management effectiveness evaluation in protected areas. A global study. The University of Queensland, Brisbane: Australia. 192 p.
Nasi R, Taber A, Van Vliet N (2011) Empty forests, empty stomachs? Bushmeat and livelihoods in the Congo and Amazon Basins. International Forestry Review 13: 355-368.
Brashares JS, Arcese P, Sam MK, Coppolillo PB, Sinclair ARE, et al. (2004) Bushmeat hunting, wildlife declines, and fish supply in West Africa. Science 306: 1180-1183.
Kuehl HS, Nzeingui C, Le Duc Yeno S, Huijbregts B, Boesch C, et al. (2009) Discriminating between village and commercial hunting of apes. Biol Conserv 142: 1500-1506.
Redford KH (1992) The empty forest. Bioscience 42: 412-422.
Scholte P (2011) Towards understanding large mammal population declines in Africa's protected areas: a West-Central African perspective. Trop Conserv Sci 4: 1-11.
Juste J, Fa JE, De Val JP, Castroviejo J (1995) Market dynamics of bushmeat species in Equatorial Guinea. J Appl Ecol 32: 454-467.
Barnes RFW (2002) The bushmeat boom and bust in West and Central Africa. Oryx 36: 236-242.
Fa JE, Brown D (2009) Impacts of hunting on mammals in African tropical moist forests: A review and synthesis. Mamm Rev39: 231-264.
GonedeléBi S, Kone I, Bitty AE, Bene Koffi JC, Akpatou B, et al. (2010) Distribution and conservation status of Catarrhine primates in Cote d'Ivoire (West Africa). Folia Primatol. 83:11-23.
Henschel P, Coad L, Burton C, Chataigner B, Dunn A, et al. (2014) The lion in West Africa is critically endangered. PLoS ONE 9: 1-11.
Thiollay JM (2007) Raptor declines in West Africa: comparisons between protected, buffer and cultivated areas. Oryx 41: 322-329.
Chape S, Spalding M, Jenkins MD (2008) The world's protected areas. Berkeley: University of California Press.
Beier P, Van Drielen M, Knkam B (2002) Avifaunal collapse in West African forest fragments. Conserv Biol 16: 1097-1111.
Holbech LH (2005) The implications of selective logging and forest fragmentation for the conservation of avian diversity in evergreen forests of south-west Ghana. Bird Conserv. Int. 15: 27-52.
Zimmerman BL, Kormos CF (2012) Prospects for sustainable logging in tropical forests. Bioscience 62: 479-487.
Norris K, Asase A, Collen B, Gockowski J, Mason J, et al. (2010) Biodiversity in a forest-agriculture mosaic - the changing face of West African rainforests. Biol Conserv 143: 2341-2350.
De Merode E, Inogwabini BI, Telo J, Panziama G (2007) Status of elephant populations in Garamba National Park, Democratic Republic of Congo, late 2005. Pachyderm 42: 52-57.
Jachmann H. (2008) Illegal wildlife use and protected area management in Ghana. Biol Conserv 141: 1906-1918.
N'Goran PK, Boesch C, Mundry R, N'Goran EK, Herbinger I, et al. (2012) Hunting, law enforcement, and African primate conservation. Conserv Biol 0: 1-7.
Keane A, Jones JPG, Edwards-Jones G, Milner-Gulland EJ (2008) The sleeping policeman: understanding issues of enforcement and compliance in conservation. Animal Conservation 11: 75-82.
Mubalama L (2010) Monitoring Law Enforcement Effort and Illegal Activity in Selected Protected Areas: Implications for Management and Conservation, Democratic Republic of Congo. PhD Thesis. Ghent University: Belgium. 374 p.
Hodgkinson C (2009). Tourists, gorillas and guns: integrating conservation and development in the Central African Republic. PhD thesis. University College London, London: UK. 325 p.
Sutherland WJ, Adams WM, Aronson RB, Aveling R, Blackburn TM, et al. (2009) One hundred questions of importance to the conservation of global biological diversity. Conserv Biol 23: 557-567.
Terborgh J, Pitman N, Silman MR, Schichter H, Nunez VP (2002) Maintenance of tree diversity in tropical forests. In: Levey DJ, Silva WR, Galetti M, editors. Seed dispersal and frugivory: ecology, evolution and conservation. Wallingfod, UK: CAB International. pp. 1-18.
Campbell G, Kuehl H, Diarrassouba A, N'Goran PK, Boesch C (2011) Long-term research sites as refugia for threatened and over-harvested species. Biol Lett 7: 723-726
Sommer V, Ross C (2011) Exploring and protecting West Africa's primates: the Gashaka Primate Project in context. In: Sommer V, Ross C, editors. Primates of Gashaka. Socioecology and conservation in Nigeria's biodiversity Hotspot. New York: Springer. pp. 1-23.
Laurance WF (2013) Does research help to safeguard protected areas? Trends Ecol. Evol. 28: 261-266.
Davenport L, Brockelman WY, Wright PC, Ruf K, Rubio del Valle FB (2002) Ecotourism tools for parks. In: Terborgh J, van Shaik C, Davenport L, Rao M, editors. Making parks work. Washington DC: Island Press. pp. 279-306.
Maiorano L, Falcucci A, Boitani L (2008) Size-dependent resistance of protected areas to land-use change. Proc R Soc Lond B 275: 1297-1304.
Oates JF (1999). Myth and Reality in the Rain Forest. Berkeley: University of California Press. 338 p.
De Merode E, Homewood K, Cowlishaw G (2004) The value of bushmeat and other wild foods to rural households living in extreme poverty in Democratic Republic of Congo. Biol Conserv 118: 573-581.
Stoner KE, Vulinec K, Wright SJ, Peres CA (2007) Hunting and plant community dynamics in tropical forests: a synthesis and future directions. Biotropica 39: 385-392.
Wright SJ, Stoner KE, Beckman N, Corlett RT, Dirzo R, et al. (2007) The plight of large animals in tropical forests and the consequences for plant regeneration. Biotropica 39: 289-291.
Terborgh J, Estes JA (2010) Trophic cascades: predators, prey and changing dynamics of nature. Washington: Island Press. 488 p.
