Ancrenaz M, Calaque R, Lackman-Ancrenaz I (2004) Orangutan nesting behavior in disturbed forest of Sabah, Malaysia: implications for nest census. Int J Primatol 25(5): 983-1000.
Anderson JR (1998) Sleep, sleeping sites, and sleep-related activities: awakening to their significance. Am J Primatol 46: 63-75.
Anderson JR (2000) Sleep-related behavioural adaptations in free ranging anthropoid primates. Sleep Med Rev 4(4): 355-373.
Brugiere D, Sakom D (2001) Population density and nesting behaviour of lowland gorillas (Gorilla gorilla gorilla) in the Ngotto forest, Central African Republic. J Zool 255: 251-259.
Casimir MJ (1979) An analysis of gorilla nesting sites of the Mt. Kahuzi region (Zaire). Folia Primatol 32: 290-308.
Djoufack SD (2003) Végétation et distribution des nids de gorilles (Gorilla gorilla gorilla) dans la périphérie Nord de la réserve de biosphère du Dja. Université de Yaoundé I, Yaoundé, Mémoire de DEA.
Doran DM, McNeilage A, Greer D, Bocian C, Mehlman P, Shah N (2002) Western lowland gorilla diet and resource availability: new evidence, cross-site comparisons, and reflections on indirect sampling methods. Am J Primatol 58: 91-116.
Doran-Sheehy DM, Greer D, Mongo P, Schwindt D (2004) Impact of ecological and social factors on ranging in western gorillas. Am J Primatol 64: 207-222.
Dupain J, Guislain P, Nguenang GM, De Vleeschouwer K, van Elsacker L (2004) High chimpanzee and gorilla densities in a non-protected area on the northern periphery of the Dja Faunal Reserve, Cameroon. Oryx 38(2): 1-8.
Fay JM (1997) The ecology, social organization, populations, habitat and history of the western lowland gorilla (Gorilla gorilla gorilla). PhD thesis. Washington University, Washington.
Fruth B, Hohmann G (1996) Nest building behavior in the great apes: the great leap forward? In: McGrew WC, Marchant LF, Nishida T (eds) Great ape societies. Cambridge University Press, London, pp 225-240.
Furuichi T, Inagaki H, Angoue-Ovono S (1997) Population density of chimpanzees and gorillas in the Petit Loango Reserve, Gabon: employing a new method to distinguish between nests of the two species. Int J Primatol 18(6): 1029-1046.
Goldsmith ML (1996) Ecological influences on the ranging and grouping behavior of western lowland gorillas at Bai Hohou, Central African Republic. PhD thesis. State University of NewYork at Stony Brook, Stony Brook.
Groves CP, Sabater Pi J (1985) From ape's nest to human fix-point. Man 20: 22-47.
Hamann A, Barbon EB, Curio E, Madulid DA (1999) A botanical inventory of a submontane tropical rainforest on Negros Island, Philippines. Biodivers Conserv 8: 1017-1031.
Hashimoto C (1995) Population census of the chimpanzees in the Kalinzu Forest, Uganda: comparison between methods with nest counts. Primates 36(4): 477-488.
Iwata Y, Ando C (2007) Bed and bed-site reuse by western lowland gorillas (Gorilla g. gorilla) in Moukalaba-Doudou National Park. Gabon. Primates 48: 77-80.
Letouzey R (1985) Notice de la carte phytogéographique du Cameroun au 1/500 000. Domaine de forêt dense humide toujours verte, Institut de la carte internationale de la végétation, Toulouse.
Loya DT, Jules ES (2008) Use of species richness estimators improves evaluation of understory plant response to logging: a study of redwood forests. Plant Ecol 194: 179-194.
Malenky RK, Wrangham R, Chapman CA, Vineberg EO (1993) Measuring chimpanzee food abundance. Tropics 2(4): 231-244.
McCune B, Mefford MJ (1999) PC-ORD: Multivariate analysis of ecological data. Version 4. 01. MjM software, Gleneden Beach.
Mehlman PT, Doran DM (2002) Influencing western gorilla nest construction at Mondika Research Center. Int J Primatol 23(6): 1257-1285.
Morgan D, Sanz C (2007) Best practice guidelines for reducing the impact of commercial logging on great apes in Western Equatorial Africa. IUCN SSC Primate Specialist Group (PSG), Gland.
Nguenang GM, Dupain J (2002) Typologie et description morpho-structurale de la mosaïque forestière du Dja: Cas du site d'étude sur la socio-écologie des grands singes dans les villages Malen V, Doumo-pierre et Mimpala (Est-Cameroun). Rapport interne, SRZA.
Nishihara T (1995) Feeding ecology of western lowland gorillas in the Nouabale-Ndoki National Park, Congo. Primates 36: 151-168.
Poulsen JR, Clark CJ (2004) Densities, distributions and seasonal movements of gorillas and chimpanzees in swamp forest in Northern Congo. Int J Primatol 25: 285-306.
Remis MJ (1993) Nesting behavior of lowland gorillas in the Dzanga-Sangha Reserve, Central Africa Republic: implications for population estimates and understanding of group dynamics. Tropics 2(4): 245-255.
Remis MJ (1997) Western lowland gorillas as seasonal frugivores: use of variable resources. Am J Primatol 43: 87-109.
Rogers ME, Abernethy K, Bermejo M, Cipolletta C, Doran D, McFarland K, Nishihara T, Remis M, Tutin CEG (2004) Western gorilla diet: a synthesis from six sites. Am J Primatol 64: 173-192.
Rothman JM, Pell AN, Dierenfeld ES, McCann CM (2006) Plant choice in the construction of night nests by gorillas in the Bwindi Impenetrable National Park, Uganda. Am J Primatol 68: 361-368.
Salah MS (2011) Contribution des gorilles (Gorillagorilla gorilla), chimpanzés (Pan troglodytes troglodytes) et élephants (Loxodonta africana cyclotis) à la régénération des forêts dans la périphérie Nord de la réserve de biosphère du Dja (Est-Cameroun). Mémoire présenté en vue de l'obtention du diplôme d'Ingénieur des Eaux, Forêts et Chasse. Université de Dschang, Dschang.
Sanz C, Morgan D, Strindberg S, Onononga JR (2007) Distinguishing between the nests of sympatric chimpanzees and gorillas. J Appl Ecol 44: 263-272.
Sunderland-Groves JL, Ekinde A, Mboh H (2009) Nesting behavior of Gorilla gorilla diehli at Kagwene Mountain, Cameroon: implications for assessing group size and density. Int J Primatol 30: 253-266.
Tutin CEG, Fernandez M (1984) Nationwide census of gorilla (Gorilla g. gorilla) and chimpanzee (Pan t. troglodytes) populations in Gabon. Am J Primatol 6: 313-336.
Tutin CEG, Parnell RJ, White LJT, Fernandez M (1995) Nest building by lowland gorillas in the Lopé Reserve, Gabon: environmental influences and implications for censusing. Int J Primatol 16(1): 53-76.
White LJT, Rogers ME, Tutin CEG, Williamson E, Fernandez M (1995) Herbaceous vegetation in different forest types in the Lopé forest reserve, Gabon: implications for keystone food availability. Afr J Ecol 33: 124-141.
Willie J, Petre CA, Tagg N, Lens L (2012) Density of herbaceous plants and distribution of western gorillas in different habitat types in south-east Cameroon. Afr J Ecol. doi: 10. 1111/aje. 12014.
Yamagiwa J (2001) Factors influencing the formation of ground nests by eastern lowland gorillas in Kahuzi-Biega National Park: some evolutionary implications of nesting behavior. J Hum Evol 40: 99-109.