Copyright Shenaz N Khimji (

Huck MG, and Fernandez-Duque E. (submitted). Children of divorce: effects of adult replacements on survival and dispersal of young owl monkeys in the Argentinean Chaco.

Fernandez-Duque, E. Burke K., Schoenrock K., Wolovich, C. & C. Valeggia (in press). Hormonal monitoring of reproductive status in wild monogamous female owl monkeys (Aotus azarai) of the Argentine Chaco. 

Ceresoli N, and Fernandez-Duque E. (submitted). Structure and use of burrows by giant armadillos (Priodontes maximus) in the Argentinean Gran Chaco.

Fernandez-Duque, E. and Van der Heide, GWE (to be submitted Fall 2011).  Getting through the winter : dry season resources and their influence on owl monkey reproduction.  

Erkert, H. E., E. Fernandez-Duque, M. Rotundo and A. Scheideler (submitted). Seasonal variation in the timing and pattern of activity of wild owl monkeys (Aotus azarai azarai) of the Argentinean Chaco. 

Van der Heide GWE, Iriart D, and Fernandez-Duque E (in press). Do forest composition and fruit availability predict demographic differences between owl monkey (Aotus azarai) groups inhabiting a gallery forest in Formosa, Argentina? International Journal of Primatology. [56]

Fernandez-Duque, E (invited contribution, due August 2011).  In: Primate Ethnographies (Ed: K.B. Strier). [55]

Kowalesky, M.  C. Juárez, Fernandez-Duque et al (invited contribution, in revision). Primates. In: Libro Rojo de Mamíferos de la Argentina (Eds. R.  Barquez et al). [54]

Huck, M. A. & E. Fernandez Duque (in press).  Building babies when dads help: infant development of owl monkeys and other primates with allo-maternal care.  In: Building Babies: Proximate and Ultimate Perspectives of Primate Developmental Trajectories (eds. K. Clancy, K. Hinde and J. Rutherford). [53]

Fernandez-Duque, E. (2012). Owl Monkeys. In: All the World’s Primates (Eds: Noel Rowe & M. Myers). [52]

Fernandez-Duque, E (in press).  Studies of captive and wild owl monkeys.  International Zoo Yearbook, Vol 46. [51]

Copyright Shenaz N Khimji (

C. Juárez, M. Kowaleski, C. Baldovino & E. Fernandez-Duque (in press). Los primates de Argentina: ecología y conservación.  In: Manejo de Fauna Silvestre en Argentina. Programas de especies amenazadas.  Editor: National Wildlife Directorate, Argentina. [50]

Babb, P.L., McIntosh, A.M., Fernandez-Duque, E., Di Fiore, A. and T.G. Schurr (2011).  An Optimized Microsatellite Genotyping Strategy for Assessing Genetic Identity and Kinship in Azara’s Owl Monkeys (Aotus azarai). Folia Primatologica. [49]

Fernandez-Duque, E., A. Di Fiore and A. G. de Luna (in press). Pair-mate relationships and parenting in ecuatorial saki monkeys (Pithecia aequatorialis) and red titi monkeys (Callicebus discolor) of Ecuador. Evolutionary Biology and Conservation of Titis, Sakis and Uacaris. L. M. Veiga, A. A. Barnett, S. F. Ferrari and M. A. Norconk. Cambridge, Cambridge University Press. [48]

Babb, P. L., E. Fernandez-Duque, C. Baiduc, P. Gagneux, S. Evans and T. G. Schurr (2011). mtDNA Diversity in Azara’s owl monkeys (Aotus azarai azarai) of the Argentinean Chaco. American Journal of Physical Anthropology. [47] 

Fernandez-Duque, E., Anthony Di Fiore & M. Huck (in press). The behavior, ecology, and social evolution of New World monkeys.  In: Primate Societies, Eds: Josep Call, Peter Kappeler, Ryne Palombit, Joan Silk and John Mitani. [46]

Huck, M.A., Rotundo, M. & E. Fernandez-Duque (in press). Growth, development and age categories in male and female wild monogamous owl monkeys (Aotus azarai) of Argentina, International Journal of Primatology. [45]

Fernandez-Duque, E. (in press).  Rensch’s Rule, Bergman’s Effect and adult sexual dimorphism in wild monogamous owl monkeys of Argentina, American Journal of Physical Anthropology. [44]

Fernandez-Duque, E. (2011).  Aotinae: Social Monogamy in the Only Nocturnal Anthropoids.  In: Primates in Perspective (Eds: S. Bearder et al.), Second Edition, Oxford University Press, 140-154. [43]  

Dacier A, De Luna AG, Fernandez-Duque E, and Di Fiore A (2011). Estimating population density of Amazonian titi monkeys (Callicebus discolor) via playback point counts. Biotropica 43(2):135-140). [42]

C.A. Aktipis and E. Fernandez-Duque (2011). Parental investment without kin recognition: simple conditional rules for parent-offspring behavior, Behavioral Ecology and Sociobiology 65:1079-1091 DOI 10.1007/s00265-010-1115-9. [41]

 J. P. Perea-Rodriguez, A. M. Milano, B. E. Osherov and E. Fernandez-Duque (2010). Gastrointestinal parasites of owl monkeys (Aotus azarai azarai) in the Argentinean Chaco, Neotropical Primates  17(1):7-11. [40]

E. Fernandez-Duque, H. De la Iglesia, & H. G. Erkert (2010). Moonstruck primates: owl monkeys (Aotus) need moonlight for nocturnal activity in their natural environment. PLoS ONE 5 (9): e12572. [39]

Copyright Shenaz N Khimji (

P. L. Babb, E. Fernandez-Duque, T. G. Schurr (2010). AVPR1A sequence variation in monogamous owl monkeys (Aotus azarai) and its implications for the evolution of platyrrhine social behavior, Journal of Molecular Evolution 71 (4): 279-297. [38]  

Wiederholt, R., E. Fernandez-Duque, D. Diefenbach & R. Rudran, (2010). Modeling the impacts of hunting on the population dynamics of red howler monkeys (Alouatta seniculus). Ecological Modelling 221: 2482-2490. [37]

Juárez, C. P., Rotundo, M. & W. Berg, & Fernandez-Duque, E. (2011). Costs and benefits of radio-collaring on the behavior, demography and conservation of owl monkeys (Aotus azarai) in Formosa, Argentina. International Journal of Primatology 32: 69-82 (DOI: 10.1007/s10764-010-9437-z). [36]

De Luna, G., R. Sanmiguel, A. Di Fiore & E. Fernandez-Duque (2010).  Predation and predation attempts on red titi monkeys (Callicebus discolor) and equatorial sakis (Pithecia aequatorialis) in Amazonian Ecuador. Folia Primatologica 81:86-95. [35]

Valeggia, C., Burke, E. & E. Fernandez-Duque(2010). Nutritional status and socioeconomic change among Toba and Wichí populations of the Argentinean Chaco.  Economics and Human Biology, 8 (1): 100-110. [34]

E. Fernandez-Duque
, C. R. Valeggia & S.P. Mendoza (2009). The biology of paternal
care in human and nonhuman primates.  Annual Review of Anthropology 38:115-130. [33]

E. Fernandez-Duque, E. (2009). Natal dispersal in monogamous owl monkeys (Aotus azarai) of the Argentinean Chaco. Behaviour 146:583-606. [32]

E. Fernandez-Duque, A. Di Fiore & G. Carrillo-Bilbao (2008).  Behavior, ecology and demography of Aotus vociferans in Yasuní National Park, Ecuador.  International Journal of Primatology 29:421-431. [31]

C.K. Wolovich, J.P. Perea-Rodriguez, E. Fernandez-Duque (2008). Food transfers to young and mates in wild owl monkeys (Aotus azarai).  American Journal of Primatology 70: 211-221. [30]

E. Fernandez-Duque, C. Juárez & A. Di Fiore (2008).  Adult male replacement and subsequent infant care by male and siblings in socially monogamous owl monkeys (Aotus azarai). Primates 49: 81-84. [29]

Macdonald, E.; E. Fernandez-Duque, S. Evans & L. Hagey (2008). Sex, age and family differences in the chemical composition of owl monkey (Aotus nancymaae) subcaudal scent secretions.  American Journal of Primatology 70: 12-18. [28]

Fernandez-Duque, E.  (2007).  Aotinae: Social Monogamy in the Only Nocturnal Haplorhynes.  In: Primates in Perspective (Eds: S. Bearder et al.), Oxford University Press. 139-154. [27]

Di Fiore, A.; Fernandez-Duque, E. & Hurst, D. (2007).  Adult male replacement in socially monogamous equatorial Saki Monkeys (Pithecia aequatorialis).  Folia Primatologica 78: 88-98. [26]

Levenson, D.; Fernandez-Duque, E.; Evans, S. and G. H. Jacobs, (2007).  Mutational changes in S-cone opsin genes common to both nocturnal and cathemeral Aotus monkeys.  American Journal of Primatology, 69 (7): 757-765 [25]

Copyright Shenaz N Khimji (

Fernandez-Duque, E. & Erkert, H. (2006).  Cathemerality and lunar periodicity of activity rhythms in owl monkeys of the Argentinian Chaco.  Folia Primatologica, 77: 123-138. [24]

Juárez, C.; Dvoskin, R., & E. Fernandez-Duque (2005)Structure and composition of wild black howler troops (Alouatta caraya) in gallery forests of the Argentinean Chaco.  Neotropical Primates, 13(1):19-22. [23]

Rotundo, M., Fernandez-Duque, E. & Dixson, A.F. (2005).  Infant development and parental care in free-ranging Aotus azarai azarai in Argentina.  International Journal of Primatology, 26 (6): 1459-1473. [22]

Carrillo, G.; Di Fiore, A. & E. Fernandez-Duque (2005)Dieta, forrajeo y presupuesto de tiempo en cotoncillos (Callicebus discolor) del Parque Nacional Yasuní en la Amazonia Ecuatoriana.  Neotropical Primates 13 (2): 7-11. [21]

Lau, J., Fernandez-Duque, E., Evans, Si, Dixson, A.F, & O.A. Ryder (2004).  Heterologous amplification and diversity of microsatellite loci in three owl monkey species (Aotus azarai, A. lemurinus, A. nancymaae).  Conservation Genetics, 5 (5):727-731. [20]

Dvoskin, R., Juárez, C.P., & E. Fernandez-Duque (2004).  Population density of black howlers (Alouatta caraya) in the gallery forests of the Argentinean Chaco: a preliminary assessment, Folia Primatologica, 75 (2): 93-96. [19] 

Ceresoli, N. & E. Fernandez-Duque (2003). Datos morfométricos de los armadillos del Complejo Ecológico Municipal de Sáenz Peña, Provincia del Chaco, Argentina, Edentata, 5: 35-37. [18]

Fernandez-Duque, E. (2003).  Influences of moonlight, ambient temperature and food availability on the diurnal and nocturnal activity of owl monkeys (Aotus azarai), Behavioral Ecology and Sociobiology, 54: 431-440. [17]

Fernandez-Duque, E. & M. Rotundo (2003). Field methods for capturing and marking Azarai night monkeys. International Journal of Primatology: 24(5): 1113-1120. [16]

Rudran, R., and Fernandez-Duque, E. (2003). Demographic changes over thirty years in a red howler population in Venezuela. International Journal of Primatology: 24 (5): 925-947. [15]

Fernandez-Duque, E. and Huntington, C. (2002). Disappearances of individuals from social groups have implications for understanding natal dispersal in monogamous owl monkeys (Aotus azarai).  American Journal of Primatology, 57: 219-225. [14]

Rotundo, M; Fernandez-Duque, E. & Giménez, M. (2002).  Cuidado biparental en el mono de noche (Aotus azarai azarai) de Formosa, Argentina.  Neotropical Primates, 10 (2), 70-73. [13]

Fernandez-Duque, E.; Rotundo, M & Ramirez-Llorens, P. (2002).  Environmental determinants of birth seasonality in night monkeys (Aotus azarai) of the Argentinean Chaco.  International Journal of Primatology 23 (3), 639-656. [12]

Fernandez-Duque, E.; Rotundo, M. & Sloan, C. (2001).  Density and population structure of owl monkeys (Aotus azarai) in the Argentinean Chaco. American Journal of Primatology 53 (3): 99-108. [11]

Copyright Shenaz N Khimji (

Fernandez-Duque, E., Valeggia, C. & W.A.Mason (2000).  Effects of pair-bond and social context on male-female interactions in captive titi monkeys (Callicebus moloch, Primates: Cebidae). Ethology 106: 1067-1082. [10] 

Rotundo, M., C. Sloan & Fernandez-Duque, E. (2000).  Cambios estacionales en el ritmo de actividad del mono mirikiná (Aotus azarai) en Formosa Argentina. Pp 413-417. In: Cabrera, E., C. Mercolli & R. Resquin. Manejo de Fauna Silvestre en Amazonía y Latinoamérica. Asunción. 578 pp. [9]

Valeggia, C.R., Mendoza, S.P., Fernandez-Duque, E., Mason, W.A., and Lasley, B. (1999).  Reproductive biology of female titi monkeys (Callicebus moloch) in captivity.  American Journal of Primatology, 47:183-195. [8]

Fernandez-Duque, E., W.A. Mason & S.P. Mendoza (1997).  Effects of duration of separation on responses to mates and strangers in the monogamous titi monkey (Callicebus moloch).  American Journal of Primatology 43 (3): 225-237. [7]

Fernandez-Duque, E. & S.P. Bravo (1997).  Population genetics and conservation of owl monkeys (Aotus azarai) in Argentina: a promising field site.  Neotropical Primates, 5 (2): 48-50. [6]

Fernandez-Duque, E. (1997).  Comparing and combining data across studies: alternatives to significance testing.  Oikos 79 (3): 616-618. [5]

Fernandez-Duque, E. and C. Valeggia (1995).  Meta-Analysis: A valuable Tool in Conservation Research.  Reprinted in: Readings from Conservation Biology, To Preserve Biodiversity – An Overview.  Editor: David Ehrenfeld, 208-214. [4]

Fernandez-Duque, E. and C. Valeggia (1994).  Meta-Analysis: a valuable tool in conservation research. Conservation Biology, 8 (2): 555-561. [3]

Fernandez-Duque, E., Valeggia, C. and H. Maldonado (1992).  Multitrial inhibitory learning in the crab Chasmagnathus.  Behavioral and Neural Biology, 57: 189-197. [2] 

Valeggia, C., Fernandez-Duque, E. and H.  Maldonado (1989).  Danger stimulus-induced analgesia in the crab Chasmagnathus granulatus. Brain Research, 481:304-308. [1]