Seed dispersal by howler monkeys: Current knowledge, conservation implications, and future directions

Howler Monkeys: Behavior, Ecology, and Conservation

Volumn , Issue , 2015, Pages 111-139

  Arroyo Rodríguez, Víctor ^a   Andresen, Ellen ^a   Bravo, Susana P ^b   Stevenson, Pablo R ^c  

^a INSTITUTO DE INVESTIGACIONES EN ECOSISTEMAS Y SUSTENTABILIDAD   (Mexico)

^b Ciudad Autónoma de Buenos Aires   (Argentina)

^c UNIVERSIDAD DE LOS ANDES   (Colombia)

Author keywords

Forest regeneration; Seed dispersal effectiveness; Seed dispersing animals

Indexed keywords

EID: 84930712327     PISSN: None     EISSN: None     Source Type: Book    
DOI: 10.1007/978-1-4939-1960-4_5     Document Type: Book

References (119)

1. Amato KR, Estrada A (2010) Seed dispersal patterns in two closely related howler monkey species (Alouatta palliata and A. pigra): A preliminary report of differences in fruit consumption, traveling behavior, and associated dung beetle assemblages. Neotrop Primates 17:59-66.
2. Andresen E (1999) Seed dispersal by monkeys and the fate of dispersed seeds in a Peruvian rain-forest. Biotropica 31:145-158.
3. Andresen E (2000) Ecological roles of mammals: The case of seed dispersal. In: Entwistle A, Dunstone N (eds) Future priorities for the conservation of mammalian diversity: Has the panda had its day? Cambridge University Press, Cambridge.
4. Andresen E (2001) Effects of dung presence, dung amount, and secondary dispersal by dung beetles on the fate of Micropholis guyanensis (Sapotaceae) seeds in Central Amazonia. J Trop Ecol 17:61-78.
5. Andresen E (2002a) Primary seed dispersal by red howler monkeys and the effect of defecation pattern on the fate of dispersed seeds. Biotropica 34:261-272.
6. Andresen E (2002b) Dung beetles in a Central Amazonian rainforest and their ecological role as secondary seed dispersers. Ecol Entomol 27:257-270.
7. Andresen E, Feer F (2005) The role of dung beetles as secondary seed dispersers and their effect on plant regeneration in tropical rainforests. In: Forget P-M, Lambert J, Hulme P, Vander Wall SB (eds) Seed fate: Predation, dispersal and seedling establishment. CAB, Wallingford.
8. Andresen E, Levey DJ (2004) Effects of dung and seed size on secondary dispersal, seed predation, and seedling establishment of rain forest trees. Oecologia 139:145-154.
9. Anzures-Dadda A, Andresen E, Martinez ML, Manson RH (2011) Absence of howlers (Alouatta palliata) influences tree seedling densities in tropical rain forest fragments in southern Mexico. Int J Primatol 32:634-651.
10. Arroyo-Rodríguez V, Dias PAD (2010) Effects of habitat fragmentation and disturbance on howler monkeys: A review. Am J Primatol 71:1-16.
11. Beattie AJ, Hughes L (2002) Ant-plant interactions. In: Herrera CM, Pellmyr O (eds) Plant-animal interactions. An evolutionary approach. Blackwell, Oxford.
12. Bicca-Marques JC (2003) How do howler monkeys cope with habitat fragmentation. In: Marsh LK (ed) Primates in fragments: Ecology and conservation. Kluwer Academic, New York.
13. Bravo SP (2008) Seed dispersal and ingestion of insect-infested seeds by black howler monkeys in flooded forests of the Paraná river, Argentina. Biotropica 40:47-476.
14. Bravo SP (2009) Implications of behavior and gut passage for seed dispersal quality: The case of black and gold howler monkeys. Biotropica 41:751-758.
15. Bravo SP (2012a) From which Ocotea diospyrifolia trees does Alouatta caraya (Primates, Atelidae) eat fruits. J Trop Ecol 28:417-420.
16. Bravo SP (2012b) The impact of seed dispersal by black and gold howler monkeys on forest regeneration. Ecol Res 27:311-321.
17. Bravo SP, Zunino GE (1998) Effects of black howler monkey (Alouatta caraya) seed ingestion on insect larvae. Am J Primatol 45:411-415.
18. Bravo SP, Zunino GE (2000) Germination of seeds from three species dispersed by black howler monkeys (Alouatta caraya). Folia Primatol 71:342-345.
19. Bravo SP, Kowalewski MM, Zunino GE (1995) Dispersión y germinación de semillas de Ficus monckii por el mono aullador negro (Alouatta caraya). Bol Primatol Latin 5:25-27.
20. Chapman CA (1989) Primate seed dispersal: The fate of dispersed seeds. Biotropica 21:148-154.
21. Chapman CA (1995) Primate seed dispersal: Coevolution and conservation implications. Evol Anthropol 4:74-82.
22. Chapman CA, Onderdonk DA (1998) Forests without primates: Primate/plant codependency. Am J Primatol 45:127-141.
23. Chaves OM, Stoner KE, Arroyo-Rodríguez V, Estrada A (2011) Effectiveness of spider monkeys (Ateles geoffroyi vellerosus) as seed dispersers in continuous and fragmented rain forests in southern Mexico. Int J Primatol 32:177-192.
24. Connell JH (1971) On the role of natural enemies in preventing competitive exclusion in some marine animals and in rain forest trees. In: Den Boer PJ, Gradwell GR (eds) Dynamics of populations. Center for Agricultural Publication and Documentation, Wageningen.
25. Cortés-Ortiz L, Rylands AB, Mittermeier RA (2014) The taxonomy of howler monkeys: Integrating old and new knowledge from morphological and genetic studies. In: Kowalewski M, Garber P, Cortés-Ortiz L, Urbani B, Youlatos D (eds) Howler monkeys: Adaptive radiation, systematics, and morphology. Springer, New York.
26. Cramer JM, Mesquita RCG, Williamson GB (2007) Forest fragmentation differentially affects seed dispersal of large and small-seeded tropical trees. Biol Conserv 137:415-423.
27. Cristóbal-Azkarate J, Arroyo-Rodríguez V (2007) Diet and activity pattern of howler monkeys (Alouatta palliata) in Los Tuxtlas, Mexico: Effects of habitat fragmentation and implications for conservation. Am J Primatol 69:1013-1029.
28. Culot L, Huynen MC, Gérard P, Heymann EW (2009) Short-term post-dispersal fate of seeds defecated by two small primate species (Saguinus mystax and Saguinus fuscicollis) in the Amazonian forest of Peru. J Trop Ecol 25:229-238.
29. de Figueiredo RA (1993) Ingestion of Ficus enormis seeds by howler monkeys (Alouatta fusca) in Brazil: Effects on seed germination. J Trop Ecol 9:541-543.
30. de Figueiredo RA, Longatti CA (1997) Ecological aspects of the dispersal of a melastomataceae by Marmosets and Howler monkeys (Primates: Platyrrhini) in a semideciduous forest of southeastern Brazil. Revue d’Ecologie (La Terre et la Vie) 52:3-8.
31. Dias PAD, Rangel-Negrin A (2014) Diets of howler monkeys. In: Kowalewski M, Garber P, Cortés-Ortiz L, Urbani B, Youlatos D (eds) Howler monkeys: Behavior, ecology and conservation (pp. 21-56). Springer, New York.
32. Dunn JC, Asensio N, Arroyo-Rodríguez V, Schnitzer S, Cristóbal-Azkarate J (2012) The ranging costs of a fallback food: Liana consumption supplements diet but increases foraging effort in howler monkeys. Biotropica 44(5):705-714. doi: 10.1111/j.1744-7429.2012.00856.x.
33. Estrada A (2014) Conservation of Alouatta: Social and economic drivers of habitat loss, information vacuum and mitigating population declines. In: Kowalewski M, Garber P, Cortés-Ortiz L, Urbani B, Youlatos D (eds) Howler monkeys: Behavior, ecology and conservation (pp. 383-409). Springer, New York.
34. Estrada A, Coates-Estrada R (1984) Fruit eating and seed dispersal by howlers (Alouatta palliata) in the tropical rain forest of Los Tuxtlas, Veracruz, Mexico. Am J Primatol 6:77-91.
35. Estrada A, Coates-Estrada R (1991) Howler monkeys (Alouatta palliata), dung beetles (Scarabaeidae) and seed dispersal: Ecological interactions in the tropical rain forest of Los Tuxtlas, Mexico. J Trop Ecol 7:459-474.
36. Feeley K (2005) The role of clumped defecation in the spatial distribution of soil nutrients and the availability of nutrients for plant uptake. J Trop Ecol 21:99-102.
37. Feer F (1999) Effects of dung beetles (Scarabaeidae) on seeds dispersed by howler monkeys (Alouatta seniculus) in the French Guianan rain forest. J Trop Ecol 15:129-142.
38. Feer F, Forget P-M (2002) Spatio-temporal variations in post-dispersal seed fate. Biotropica 34:555-566.
39. Feer F, Julliot C, Simmen B, Forget P-M, Bayart F, Chauvet S (2001) Recruitment, a multi-stage process with unpredictable result: The case of a Sapotaceasae in French Guianan forest. Revue d’Ecologie (La Terre et la Vie) 56:119-145.
40. Fleming TH, Kress WJ (2011) A brief history of fruits and frugivores. Acta Oecol 37:521-530.
41. Forget P-M, Milleron T, Feer F (1998) Patterns in post-dispersal seed removal by Neotropical rodents and seed fate in relation to seed size. In: Newbery DM, Prins HHT, Brown ND (eds) Dynamics of tropical communities. Blackwell Science, Oxford.
42. Forget P-M, Lambert J, Hulme P, Vander Wall SB (2005) Seed fate. Predation, dispersal and seedling establishment. CABI, Wallingford.
43. Fragoso JMV, Silvus KM, Correa JA (2003) Long-distance seed dispersal by tapirs increases seed survival and aggregates tropical trees. Ecology 84:1998-2006.
44. Garber PA (1986) The ecology of seed dispersal in two species of Callitrichid primates (Saguinus mystax and Saguinus fuscicollis). Am J Primatol 10:155-170.
45. Garber PA, Estrada A, Pavelka MSM (2006) New perspectives in the study of Mesoamerican primates: Concluding comments and conservation priorities. In: Estrada A, Garber PA, Pavelka M, Luecke L (eds) New perspectives in the study of Mesoamerican primates. Springer, New York.
46. Giraldo P, Gómez-Posada C, Martinez J, Kattan G (2007) Resource use and seed dispersal by red howler monkeys (Alouatta seniculus) in a Colombian Andean forest. Neotrop Primates 14:55-64.
47. González-Di Pierro AM (2011) Presencia de Alouatta pigra y regeneración en fragmentos forestales de la Selva Lacandona, Ph.D. Thesis, Universidad Nacional Autónoma de México, Morelia, Michoacán
48. Gonzalez-Di Pierro AM, Benítez-Malvido J, Mendez-Toribio M, Zermeno I, Arroyo-Rodríguez V, Stoner KE, Estrada A (2011) Effects of the physical environment and primate gut passage on the early establishment of Ampelocera hottlei standley in rain forest fragments. Biotropica 43:459-466.
49. González-Zamora A, Arroyo-Rodríguez V, Chavez O, Sanchez-Lopez S, Stoner KE, RibaHernández P (2009) Diet of spider monkeys (Ateles geoffroyi) in Mesoamerica: Current knowledge and future directions. Am J Primatol 71:8-20.
50. González-Zamora A, Arroyo-Rodríguez V, Oyama AK, Sork V, Chapman CA, Stoner KE (2012) Sleeping sites and latrines of spider monkeys in continuous and fragmented rainforests: Implications for seed dispersal and forest regeneration. PLoS One 7:e46852.
51. González-Zamora A, Arroyo-Rodríguez V, Escobar F, Rös M, Oyama K, Ibarra-Manríquez G, Stoner KE, Chapman CA (2014) Contagious deposition of seeds in spider monkeys’ sleeping trees limits effective seed dispersal in fragmented landscapes. PloS ONE 9:e89346.
52. Graeff VG, Bicca-Marques JC, Astarita LV (2007) Viability and germination of seeds of iguana hackberry, Celtis iguanaea (Jacq) Sargent, ingested by brown howler monkeys, Alouatta guariba clamitans Cabrera, 1940. A Primatologia no Brasil 10:363-374.
53. Hernández A (2011) Internal dispersal of seed-inhabiting insects by vertebrate frugivores: A review and prospects. Integr Zool 6:213-221.
54. Herrera CM (2002) Seed dispersal by vertebrates. In: Herrera CM, Pellmyr O (eds) Plant-animal interactions. An evolutionary approach. Blackwell, Oxford.
55. Howe HF (1980) Monkey dispersal and waste of a Neotropical fruit. Ecology 61:944-959.
56. Howe HF, Smallwood J (1982) Ecology of seed dispersal. Ann Rev Ecol Syst 13:201-228.
57. Hulme PE (2002) Seed-eaters: Seed dispersal, destruction and demography. In: Levey DJ, Silva WR, Galetti M (eds) Seed dispersal and frugivory: Ecology, evolution and conservation. CAB International, Wallingford.
58. IUCN (2012) Alouatta. In: IUCN 2012. IUCN Red list of threatened species. Version 2012.2. www.iucnredlist.org. Downloaded on 06 November 2012.
59. Janson CH (1983) Adaptation of fruit morphology to dispersal agents in a Neotropical forest. Science 219:187-189.
60. Janzen DH (1970) Herbivores and the number of tree species in tropical forests. Am Nat 104:501-528.
61. Jones MB (1994) Secondary seed removal by ants, beetles, and rodents in a Neotropical moist forest, M.Sc. Thesis. University of Florida, Gainesville.
62. Jordano P (2000) Fruits and frugivory. In: Fenner M (ed) Seeds: The ecology of regeneration in plant communities. CAB International, Wallingford.
63. Julliot C (1996a) Seed dispersal by red howling monkeys (Alouatta seniculus) in the tropical rain forest of French Guiana. Int J Primatol 17:239-258.
64. Julliot C (1996b) Fruit choice by red howler monkeys (Alouatta seniculus) in a tropical rain forest. Am J Primatol 40:261-282.
65. Julliot C (1997) Impact of seed dispersal by red howler monkeys Alouatta seniculus on the seedling population in the understorey of tropical rain forest. J Ecol 85:431-440.
66. Julliot C, Sabatier D (1993) Diet of the red howler monkey (Alouatta seniculus) in French Guiana. Int J Primatol 14:527-550.
67. Koné I, Lambert JE, Refisch J, Bakayoko A (2008) Primate seed dispersal and its potential role in maintaining useful tree species in the Taï region, Côte-d’Ivoire: Implications for the conservation of forest fragments. Trop Conserv Sci 1:293-306.
68. Lambert J (2002a) Red-Tailed Guenons (Cercopithecus ascanius) and Strychnos mitis: Evidence for plant benefits beyond seed dispersal. Int J Primatol 22:189-201.
69. Lambert J (2002b) Exploring the link between animal frugivory and plant strategies: The case of primate fruit processing and post-dispersal seed fate. In: Levey DJ, Silva WR, Galetti M (eds) Seed dispersal and frugivory: Ecology, evolution and conservation. CABI Publishing, Wallingford.
70. Lambert JE, Garber PA (1998) Evolutionary and ecological implications of primate seed dispersal. Am J Primatol 45:9-28.
71. Marsh LK, Loiselle BA (2003) Recruitment of black howler fruit trees in fragmented forests of northern Belize. Int J Primatol 24:65-86.
72. Martínez-Mota R, Serio-Silva JC, Rico-Gray V (2004) The role of canopy ants in removing Ficus perforata seeds from howler monkey (Alouatta palliata mexicana) feces at Los Tuxtlas, Mexico. Biotropica 36:429-432.
73. Martins MM (2006) Comparative seed dispersal effectiveness of sympatric Alouatta guariba and Brachyteles arachnoides in southeastern Brazil. Biotropica 38:57-63.
74. Martins MM (2008) Fruit diet of Alouatta guariba and Brachyteles arachnoides in Southeastern Brazil: Comparison of fruit type, color, and seed size. Primates 49:1-8.
75. Milton K (1980) The foraging strategy of howler monkeys. A study in primate economics. Columbia University Press, New York.
76. Moura ACDA, McConkey KR (2007) The capuchin, the howler, and the caatinga: Seed dispersal by monkeys in a threatened Brazilian forest. Am J Primatol 69:220-226.
77. Neves N, Feer F, Salmon S, Chateil C, Ponge JF (2010) The impact of red howler monkey latrines on the distribution of main nutrients and topsoil components in tropical rain forests. Aus Ecol 35:545-559.
78. Palma AC, Vélez A, Gómez-Posada C, López H, Zárate-Caicedo DA, Stevenson PR (2011) Use of space, activity patterns, and foraging behavior of red howler monkeys (Alouatta seniculus) in an Andean forest fragment in Colombia. Am J Primatol 73:1062-1071.
79. Pedroni F, Sanchez M (1997) Dispersao de sementes de Pereskia aculeata Muller (Cactaceae) num fragmento florestal no sudeste do Brasil. Rev Brasil Biol 57:479-486.
80. Peres CA (1997) Primate community structure at twenty western Amazonian flooded and unflooded forests. J Trop Ecol 13:381-405.
81. Peres CA, Palacios E (2007) Basin-wide effects of game harvest on vertebrate population densities in Amazonian forests: Implications for animal-mediated seed dispersal. Biotropica 39:304-315.
82. Ponce G (2004) Dispersión de semillas por mono araña (Ateles geoffroyi), saraguato negro (Alouatta pigra) y escarabajos coprófagos en el Parque Nacional Tikal, Guatemala, B.Sc. Thesis, Universidad del Valle.
83. de Guatemala, Guatemala Ponce G, Andresen E, Cano E, Cuaron AD (2006) Primary seed dispersal by primates and secondary seed dispersal by dung beetles in Tikal, Guatemala. Biotropica 38:390-397.
84. Pouvelle S, Feer F, Ponge J-F (2008) Topsoil as affected by dung deposition under resting places of red howler monkey (Alouatta seniculus). Pedosphere 18:691-698.
85. Pouvelle S, Jouard S, Feer F, Tully T, Ponge J-F (2009) The latrine effect: Impact of howler monkeys on the distribution of small seeds in a tropical rain-forest soil. J Trop Ecol 25:239-248.
86. Ramos-Obregon J (2007) Comparación de la cantidad y el tipo de semillas dispersadas por Cebus apella y Alouatta seniculus en un bosque fragmentado, San Martín; Meta, BSc. Thesis. Departamento de Ciencias Biológicas, Universidad de Los Andes, Bogota.
87. Ratiarison S, Forget P-M (2011) Fruit availability, frugivore satiation and seed removal in 2 primate- dispersed tree species. Integr Zool 6:178-194.
88. Righini N (2004) Germinación de semillas de Ficus perforata ingeridas por monos aulladores (Alouatta palliata mexicana) y monos araña (Ateles geoffroyi vellerosus). Lab Prim Newslett 43:19-20.
89. Russo SE, Augspurger CK (2004) Aggregated seed dispersal by spider monkeys limits recruitment to clumped patterns in Virola calophylla. Ecol Lett 7:1058-1067.
90. Russo SE, Chapman CA (2011) Primate seed dispersal: Linking behavioral ecology with forest community structure. In: Campbell CJ, Fuentes AF, MacKinnon KC, Panger M, Bearder S (eds) Primates in perspective, 2nd edn. Oxford University Press, Oxford.
91. Russo SE, Portnoy S, Augspurger CK (2006) Incorporating animal behavior into seed dispersal models: Implications for seed shadows and an example for a primate-dispersed tree. Ecology 87:3160-3174.
92. Santamaría M (1999) Ecologia e comportamento de Alouatta seniculus em uma mata de terra firme na Amazonia Central, M.Sc. Thesis. Universidade Federal de Minas Gerais, Brazil.
93. Santos-Heredia C, Andresen E, Zarate DA (2010) Secondary seed dispersal by dung beetles in a Colombian rain forest: Effects of dung type and defecation pattern on seed fate. J Trop Ecol 26:355-364.
94. Santos-Heredia C, Andresen E, Stevenson P (2011) Secondary seed dispersal by dung beetles in an Amazonian forest fragment of Colombia: Influence of dung type and edge effect. Integr Zool 6:399-408.
95. Schupp EW (1993) Quantity, quality and the effectiveness of seed dispersal by animals. Vegetatio 107:15-29.
96. Schupp EW, Milleron T, Russo SE (2002) Dissemination limitation and the origin and maintenance of species-rich tropical forests. In: Levey DJ, Silva WR, Galetti M (eds) Seed dispersal and frugivory: Ecology, evolution and conservation. CABI Publishing, Wallingford.
97. Schupp EW, Jordano P, Gómez JM (2010) Seed dispersal effectiveness revisited: A conceptual review. New Phytol 188:333-353.
98. Serio-Silva JC, Rico-Gray V (2002a) Influence of microclimate at different canopy heights on the germination of Ficus (Urostigma) seeds dispersed by Mexican howler monkeys (Alouatta palliata mexicana). Interciencia 27:186-190.
99. Serio-Silva JC, Rico-Gray V (2002b) Interacting effects of forest fragmentation and howler monkey foraging on germination and dispersal of fig seeds. Oryx 36:266-271.
100. Serio-Silva JC, Rico-Gray V (2003) Howler monkeys (Alouatta palliata mexicana) as seed dispersers of strangler figs in disturbed and preserved habitat in southern Veracruz, Mexico. In: Marsh LK (ed) Primates in fragments: Ecology and conservation. Kluwer Academic, New York.
101. Silver SC, Ostro LET, Yeager CP, Horwich R (1998) Feeding ecology of the black howler monkey (Alouatta pigra) in Northern Belize. Am J Primatol 45:263-279.
102. Stevenson PR (2007) Estimates of the number of seeds dispersed by a population of primates in a lowland forest in western Amazonia. In: Dennis AJ, Schupp EW, Green RJ, Westcott DW (eds) Seed dispersal: Theory and its application in a changing world. CAB International, Wallingford.
103. Stevenson PR (2011) The abundance of large Ateline monkeys is positively associated with the diversity of plants regenerating in Neotropical forests. Biotropica 43:512-519.
104. Stevenson PR, Aldana AM (2008) Potential effects of Ateline extinction and forest fragmentation on plant diversity and composition in the western Orinoco Basin, Colombia. Int J Primatol 29:365-377.
105. Stevenson PR, Quiñones MJ, Ahumada JA (1998) Effects of fruit patch availability on feeding subgroup size and spacing patterns in four primate species, at Tinigua National Park, Colombia. Int J Primatol 19:313-324.
106. Stevenson PR, Quiñones MJ, Ahumada JA (2000) The relationship between temporal variation in fruit abundance and ecological overlap among four Neotropical primates in Colombia. Biotropica 32:533-544.
107. Stevenson PR, Castellanos MC, Pizarro JC, Garavito M (2002) Effects of seed dispersal by three ateline monkey species on seed germination at Tinigua National Park, Colombia. Int J Primatol 23:1187-1204.
108. Stevenson PR, Pineda M, Samper T (2005) Influence of seed size on dispersal patterns of woolly monkeys (Lagothrix lagothricha) at Tinigua Park, Colombia. Oikos 110:435-440.
109. Stoner KE, Riba-Hernandez P, Vulinec K, Lambert JE (2007) The role of mammals in creating and modifying seed shadows in tropical forests and some possible consequences of their elimination. Biotropica 39:316-327.
110. Terborgh J, Alvarez-Loayza P, Dexter K, Cornejo F, Carrasco C (2011) Decomposing dispersal limitation: Limits on fecundity or seed distribution. J Ecol 99:935-944.
111. Traveset A, Robertson AW, Rodríguez-Pérez J (2007) A review on the role of endozoochory in seed germination. In: Dennis AJ, Schupp EW, Green RJ, Westcott DA (eds) See dispersal. Theory and its application in a changing world. CABI, Wallingford.
112. Vulinec K, Lambert JE (2009) Neutral and niche perspectives and the role of primates as seed dispersers: A case study from Rio Paratari, Brazil. In: Garber PA, Estrada A, Bicca-Marques JC, Heymann EW, Strier KB (eds) South American primates. Comparative perspectives in the study of behavior, ecology, and conservation, Developments in primatology: Progress and prospects. Springer, New York.
113. Vulinec K, Lambert JE, Mellow DJ (2006) Primate and dung beetle communities in secondary growth rain forests: Implications for conservation of seed dispersal systems. Int J Primatol 27:855-879.
114. Wang B, Smith T (2002) Closing the seed dispersal loop. Trends Ecol Evol 17:379-385.
115. Wehncke EV, Valdez CN, Dominguez CA (2004) Seed dispersal and defecation patterns of Cebus capucinus and Alouatta palliata: Consequences for seed dispersal effectiveness. J Trop Ecol 20:535-543.
116. Wilkie DS, Bennett EL, Peres CA, Cunningham SA (2011) The empty forest revisited. Ann New York Acad Sci 1223:120-128.
117. Williams-Guillén K, McCann C, Martínez-Sánchez JC, Koontz F (2006) Resource availability and habitat use by mantled howling monkeys in a Nicaraguan coffee plantation: Can agroforests serve as core habitat for a forest mammal. Anim Conserv 9:331-338.
118. Yumoto T, Kimura K, Nishimura A (1999) Estimation of the retention times and distances of seed dispersed by two monkey species, Alouatta seniculus and Lagothrix lagotricha, in a Colombian forest. Ecol Res 14:179-191.
119. Zárate DA, Andresen E, Estrada A, Serio-Silva CJ (2014) Black howler monkey (Alouatta pigra) activity, foraging and seed dispersal patterns in shaded cocoa plantations versus rainforest in southern Mexico. Am J Primatol 76:890-899.