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Prof. Dr. Eckhard W. Heymann

Gastwissenschaftler

Verhaltensökologie & Soziobiologie

+49 551 3851-0

EHeymann(at)dpz.eu

Kellnerweg 4
37077 Göttingen

nach Vereinbarung / on appointment

Allgemein:

Verhaltensökologie und Ökologie, insbesondere von Neuweltprimaten

Spezifisch:

* Sozialsysteme

  • Soziale Organisation und Paarungssysteme (inbesondere Polyandrie und Monogamie)
  • Sozialverhalten und Kommunikation (insbesondere olfaktorische Kommunikation)

* Autökologie

  • Nahrungsökologie und Habitatnutzung

* Synökologie

  • Ökologische Funktionen von Primaten
  • Tier-Pflanze-Interaktionen: Samenausbreitung
  • Mechanismen der Nischendifferenzierung sympatrischer Arten
  • Interspezifische Assoziationen (Primaten-Primaten, Primaten-Vögel)
  • Asociación Peruana de Primatología (APP)
  • Gesellschaft für Primatologie (GfP)
  • Gesellschaft für Tropenökologie - Society for Tropical Ecology (gtö)
  • IUCN/SSC Primate Specialist Group (IUCN/SSC-PSG)
  • Senckenberg Gesellschaft für Naturforschung (SGN)

(* = Artikel in Fachzeitschriften mit Reviewsystem; § = gemeinsame Senior-Autorenschaft)

NEU:
*Rubio Vargas CL, Cerón Cancharis ZL, Heymann EW. 2024. Characterization of forest fragments occupied by the San Martín titi monkey (Plecturocebus oenanthe). Frontiers in Conservation Science 5:1401517

NEU:
Heymann EW. 2024. Measuring food in the field. In: How primates eat: a synthesis of nutritional ecology across a mammal order. Lambert JE, Bryer M, Rothman J (Hrsg.). Chicago: University of Chicago Press, pp 399-416

NEU:
*Urbani B, Heymann EW. 2024. Late eighteenth-century depictions of Peruvian primates in the Codex Martínez Compañón and the Quadro de la Historia Natural Civil y Geográfica del Reyno del Perú. Archives of Natural History 51:146-170

NEU:
*Thiel S, Gottstein M, Heymann EW, Kroszewski J, Lieker N, Shahuano Tello N, Tschapka M, Junker R, Heer K. 2024. Vertically stratified interactions of nectarivores and nectar-inhabiting bacteria in a liana flowering across forest strata. American Journal of Botany 111:e16303

NEU:
*Timothy M. Eppley, Kim E. Reuter, Timothy M. Sefczek, ..., Heymann EW, ... 2024. Tropical field stations yield high conservation return on investment. Conservation Letters 17:e13007

*Tesar Espinosa KL, Heymann EW, Dolotovskaya S. 2023. A comparison of scan and focal sampling in estimating activity budgets, diet composition, and proximity patterns of a wild pair-living primate. Folia Primatologica 94:249–263

*Gottstein M, Morris A, Heer K, Heymann EW. 2023. Feeding ecology of monk sakis (Pithecia monachus) in a seasonally flooded forest in western Amazonia. Primates 64:527-537

*Thiel S, Willems FM, Farwig N, Rehling F, Schabo DG, Schleuning M, Shahuano Tello N, Töpfer T, Tschapka M, Heymann EW, Heer K. 2023. Frugivore community composition and interaction frequency are vertically stratified in a liana species fruiting across forest strata. Biotropica 55:650-664

*Sivault E, McConkey K, Bretagnolle F, Sengupta A, Lambert J§, Heymann EW§, Forget PM§, Herrel A§. 2023. Can body mass and skull morphology predict seed and fruit ingestion potential for mammal species? A test using extant species and its application to extinct species. Functional Ecology 37:1504–1515

Heymann EW, Tirado Herrera ER, Dolotovskaya S. 2022. Kupferrote Springaffen (Plecturocebus cupreus). Zeitschrift des Kölner Zoo 65:49-62

*Heymann EW, Thiel S, Paciência FM da D, Rimachi Taricuarima MN, Zárate Gómez R, Shahuano Tello N, Heer K, Sennhenn-Reulen H, Mundry R. 2022. Non-random host tree infestation by the Neotropical liana Marcgravia longifolia. PeerJ 10:e14535

*Heymann EW, Fuzessy L, Culot L. 2022. Small but nice – seed dispersal by tamarins compared to large Neotropical primates. Diversity 14:1033

*Heymann EW. 2022. Saguinus mystax. Mammalian Species 54:seac009

*Eppley T, Hoeks S, Chapman CA, ..., Heymann EW, ...Santini L. 2022. Factors influencing terrestriality in primates of the Americas and Madagascar. Proceedings of the National Academy of Sciences USA 119:e2121105119

*Bello R, Heymann EW, Pottie S. 2022. Report of an attack on a howler monkey Alouatta sara by a group of collared peccaries Dicotyles tajacu at a mammal clay lick in Madre de Dios, Peru. Primate Biology 9:29-31

*Dolotovskaya S, Heymann EW. 2022. Coordinated singing in coppery titi monkeys (Plecturocebus cupreus): resource or mate defense? Frontiers in Ecology and Evolution 10:898509

*Charpentier E, García-Mendoza G, Cruz-Guimaraes J, Aquino R, Heymann EW. 2022. Southern range extension of Spix’s saddle-back tamarin, Leontocebus fuscicollis fuscicollis, in Peru. Primate Biology 9:19-22

*Theara GK, Ruíz Macedo J, Zárate Gómez, Heymann EW§, Dolotovskaya S§. 2022. Fur rubbing in Plecturocebus cupreus – an incidence of self-medication? Primate Biology 9:7-10

Heymann EW, Dolotovskaya S, Roos C. 2022. „Wahre Treue“ bei Kupferroten Springaffen? Biologie in unserer Zeit 52:156-161

*Heymann EW. 2022. New sniffing at New World primates - recent advances in the study of platyrrhine olfactory communication. Ethology Ecology & Evolution 34:260-273

*Heymann EW. 2022. On the identity of the tamarin AMNH 98303 (“Saguinus fuscicollis tripartitus”; Primates: Haplorrhini: Simiiformes: Platyrrhini: Callitrichidae). Primate Biology 9:1-4

*Berles P, Heymann EW, Golcher F, Nyakatura J. 2022. Behavioural adaptation related to leaping: differential habitat utilization in two sympatric tamarins (Primates: Callitrichidae) in Amazonian Peru. Journal of Mammalogy 103:146-158

*Rojas RR, Walter Mora V, Gómez Vásquez A, Pezo Lozano E, Tirado Herrera E, Heymann EW, Bodmer R. 2021. Ontogenetic variation in an Amazonian population of lowland tapir (Mammalia: Perissodactyla). Acta Amazónica 51:311-322

*Risch Ferreira NI, Verhaagh M, Heymann EW. 2021. Myrmecovory in Neotropical primates. Primates 62:871-877

*Heymann EW, Tirado Herrera ER. 2021. Estación Biológica Quebrada Blanco – un sitio poco conocido para investigación en biodiversidad y ecología en la Amazonía peruana. Revista peruana de Biología 28:e20266

*Quiring K, Carroll G, Heymann EW, Champion C, Harcourt R. 2021. Effects of breeding stage and environmental conditions on the diet of greater crested terns on Montague Island, Australia. Marine Biology 168:143

Heymann EW. 2021. Book review: Opossums. An adaptive radiation of New World marsupials, by Robert S. Voss & Sharon A. Jansa. Primates 62:857-859

Heymann EW. 2021. Book review: New World monkeys. The evolutionary odyssey, by Alfred L. Rosenberger. Primate Biology 8:15-17

*Cárdenas Ramírez GG, Jones MM, Heymann EW§, Tuomisto H§. 2021. Characterising primate habitats in Peruvian Amazonia using ferns and lycophytes as indicators. Biotropica 53:930-940

*Thiel S, Tschapka M, Heymann EW§, Heer K§. 2021. Vertical stratification of seed-dispersing vertebrate communities and their interactions with plants in tropical forests. Biological Reviews 96:454-469

*Heymann EW, Fuzessy LF. 2021. Are palms a good model to explain primate colour vision diversification? A comment on Onstein et al. 2020. Proceedings of the Royal Society B 288:20201423

*Heymann EW, Dolotovskaya S, Tirado Herrera ER. 2021. Estación Biológica Quebrada Blanco. Ecotropica 23:202101

*Heymann EW. 2021. Do wild tamarins reconcile? Two case reports from moustached tamarins. Acta Ethologica 24:67-70

*Dolotovskaya S, Roos C, Heymann EW. 2020. Genetic monogamy and mate choice in a pair-living primate. Scientific Reports 10:20328

*Heymann EW. 2019 (erschienen September 2020). Introducción y manejo de primates en islas en la Amazonía peruana – consideraciónes de un potencial problema. Folia Amazónica 29:241-247

*Ohlendorf C, Heymann EW. 2020. Do saki monkeys have a grooming claw? Primate Biology 7:19-23

*Junker J, Petrovan SO, Arroyo-Rodríguez V, Boonratana R, … Heymann EW, …, Kühl HS. 2020. Severe lack of evidence limits effective conservation of the world’s primates. BioScience 70:794-803

*Dolotovskaya S, Heymann EW. 2020. Do less or eat more: strategies to cope with costs of parental care in a pair-living monkey. Animal Behaviour 163:163-173

*Goodale E, Sridhar H, Sieving K, Bangal P, Colorado G, Farine D, Heymann EW, Jones H, Krams I, Martínez A et al. 2020. Mixed company: a framework for understanding the composition and organization of mixed-species animal groups. Biological Reviews 95:889-910

Boubli J, Lynch Alfaro J, Heymann EW, Valença Montenegro M, Mollinedo J, Calouro AM, Rylands AB. 2020. Cebus unicolor. The IUCN Red List of Threatened Species 2020: e.T70333194A70616729

de la Torre S, Cornejo FM, Heymann EW, Lynch Alfaro J, Moscoso P, Shanee S. 2020. Cebus aequatorialis. The IUCN Red List of Threatened Species IUCN 2020:e.T4081A81232624

de la Torre S, Heymann EW, Mittermeier RA Muniz C. 2020. Leontocebus nigricollis. The IUCN Red List of Threatened Species 2020:e.T39945A17932254

de la Torre S, Heymann EW, Rylands AB. 2020. Leontocebus tripartitus. The IUCN Red List of Threatened Species 2020: e.T19824A17930113

Heymann EW. 2020. Leontocebus nigrifrons. The IUCN Red List of Threatened Species 2020:e.T43953A17980422

Heymann EW, Alves SL, Calouro AM, Messias M, Mittermeier RA, Mollinedo J, Ravetta A, Rylands AB, Wallace R. 2020. Leontocebus weddelli. The IUCN Red List of Threatened Species 2020:e.T160939221A17980463

Heymann EW, de la Torre S, Mittermeier RA. 2020 Leontocebus lagonotus. The IUCN Red List of Threatened Species 2020:e.T43950A17980627

Heymann EW, Mittermeier RA, Ravetta A. 2020. Leontocebus fuscicollis ssp. fuscicollis. The IUCN Red List of Threatened Species: e.T43948A17980581

Lynch Alfaro J, Heymann EW, Mollinedo J, Muniz C, Shanee S. 2020. Cebus cuscinus, shock-headed capuchin. The IUCN Red List of Threatened Species: e.T4075A166601854

Paim F, Boubli J, Lynch Alfaro J, Rodríguez V, Silva Jr J, Urbani B, Carretero X, Guzmán-Caro D, Stevenson PR, Link A, Calouro AM, Heymann EW, Moscoso P, Palacios E, Ravetta A, de la Torre S. 2020. Saimiri cassiquiarensis. The IUCN Red List of Threatened Species 2020:e.T160940148A172142158

*Düker S, Kupsch D, Bobo S, K, Heymann EW, Waltert M. 2020. Congo grey parrot Psittacus erithacus densities in oil palm plantation, agroforestry mosaic and protected forest in Southwest Cameroon. Bird Conservation International 30:156-167

*Dolotovskaya S, Walker S, Heymann EW. 2020. What makes a pair bond in a Neotropical primate: female and male contributions. Royal Society Open Science 7:191489

*Heymann EW, Culot L, Knogge C, Smith AC, Tirado Herrera ER, Müller B, Stojan-Dolar M, Lledo Ferrer Y, Kubisch P, Kupsch D, Slana D, Koopmann ML, Ziegenhagen B, Bialozyt R, Mengel C, Hambuckers J,
Heer K. 2019. Small Neotropical primates promote the natural regeneration of anthropogenically disturbed areas. Scientific Reports 9:10356

*Gelmi-Candusso T, Bialozyt R, Slana D, Zárate Gómez R, Heymann EW, Heer K. 2019. Estimating seed dispersal distance: a comparison of methods using animal movement and plant genetic data on two primate-dispersed Neotropical plant species. Ecology and Evolution 9:5896-5910

*Souza-Alves JP, Mourthe I, ..., Heymann EW, ..., Barnett AA. 2019. Terrestrial behavior in titi monkeys (Callicebus, Cheracebus, and Plecturocebus): potential correlates, patterns, and differences between genera. International Journal of Primatology 40:553-572

*Binczik A, Roig Boixeda P, Heymann EW, Waltert M. 2019. Conservation of chimpanzees and other primates depends on forest patches in a West African savannah landscape. Oryx 53:774-781

*Dolotovskaya S, Flores Amasifuén C, Haas C, Nummert F, Heymann EW. Anti-predator behavior of red titi monkeys (Plecturocebus cupreus). Primate Biology 6:59-64

*Lüffe TM, Tirado Herrera ER, Nadjafzadeh M, Berles P, Smith AC, Knogge C, Heymann EW. 2018. Seasonal variation and an “outbreak” of frog predation by tamarins. Primates 59:549-552

*Culot L, Huynen M-C, Heymann EW. 2018. Two dispersers are better than one: seed dispersal effectiveness in a diplochorous system. International Journal of Primatology 39:397-414

Bicca-Marques J, Calouro AM, Heymann EW, Mittermeier RA, Mollinedo J, Ravetta A, Rohe F, Rylands AB, Wallace R. 2018. Saguinus imperator. The IUCN Red List of Threatened Species: e.T39948A17931139

Calouro AM, Heymann EW, Messias M, Mollinedo J, Rohe F, Rylands AB, Spironello W, Wallace R. 2018. Saguinus labiatus. The IUCN Red List of Threatened Species: e.T41524A17931345

Göbel M, Heymann EW. 2018. Ecological observations on the primates of the Area de Conservación Privada Panguana, Peruvian Amazonia. Neotropical Primates 24:49-55

*Heymann EW. 2018. Tamarine – die etwas anderen Primaten. Biologie in unserer Zeit 48:114-119

Heymann EW, Calouro AM, Fialho M, Vermeer J, de la Torre S. 2018. Plecturocebus cupreus. The IUCN Red List of Threatened Species: e.T127530593A17972923

Heymann EW, Mittermeier RA, Rylands AB. 2018. Saguinus mystax. The IUCN Red List of Threatened Species: e.T41526A17932444

Marsh LK, Heymann EW. 2018. Pithecia aequatorialis. The IUCN Red List of Threatened Species: e.T17402A17971831

Marsh LK, Heymann EW, Moura E, Ravetta A. 2018. Pithecia monachus. The IUCN Red List of Threatened Species: e.T70609726A17971958

*Gelmi-Candusso T, Heymann EW, Heer K, 2017. Effects of zoochory on the spatial genetic structure of plant populations. Molecular Ecology 26:5896–5910

*Flores Amasifuén C, Heymann EW. 2017. Toucan predation attempt on a Neotropical pygmy squirrel. Mammalia 81:527-528

*Huashuayo-Llamocca R, Heymann EW. 2017. Fur-rubbing with Piper leaves in the San Martín titi monkey, Callicebus oenanthe. Primate Biology 4:172-130

Heymann EW. 2017. Forest regeneration (role of primates in). In: The International Encyclopedia of Primatology. Fuentes A (ed). New York: Wiley. doi 10.1002/9781119179313.wbprim0274

*Heymann EW, Culot L, Knogge C, Noriega Piña TE, Tirado Herrera ER, Klapproth M, Zinner D. 2017. Long-term consistency in spatial patterns of primate seed dispersal. Ecology and Evolution 7:1435-1441

*Estrada A, Garber PA, Rylands AB, Roos R, Fernandez-Duque E, Di Fiore A, Nekaris KAI, Nijman V,  Heymann EW, Lambert JE, Rovero F, Barelli C, Setchell JM, Gillespie TR, Mittermeier RA, Arregoitia LV, de Guinea M, Gouveia S, Dobrovolski R, Shanee S, Shanee N, Boyle S, Fuentes A, MacKinnon KC, Amato KR, Meyer ALS, Wich S, Sussman RW, Pan R, Kone I, Li B. 2017. Impending extinction crisis of the world’s primates: why primates matter. Science Advances 3:e1600946

Heymann EW. 2016. Helper at the nest among nonhuman primates. In: Encyclopedia of Evolutionary Psychological Science. Shackelford TK, Weekes-Shackelford VA (eds). Springer International Publishing Switzerland. DOI 10.1007/978-3-16999-6_3626-1

Schlosser R, Sliwa A, Heymann EW. 2016. Entwicklung der Gesichts- und Körperfärbung bei einem männlichen Weißgesichts-Saki, Pithecia pithecia - eine Fotodokumentation. Zeitschrift des Kölner Zoo 59:79-84

Heymann EW. 2016. Speaking of which: odour communication in tamarins. In: The missing lemur link: ancestral steps in human evolution. Palagi E, Norscia I (eds). Cambridge: Cambridge University Press, p 9-13

*Nevo O, Heymann EW, Schulz S, Ayasse M. 2016. Fruit odor as ripeness signal for seed-dispersing primates? A case study on four Neotropical plant species. Journal of Chemical Ecology 42:323-328

*Corso J, Bowler M, Heymann EW, Roos C, Mundy NI. 2016. Highly polymorphic colour vision in a New World monkey with red facial skin, the bald uakari (Cacajao calvus). Proceedings of the Royal Society B 23: 20160067

*Rylands AB, Heymann EW, Matauschek C, Lynch Alfaro J, Roos C, Buckner J, Boubli JP, Sampaio R, Mittermeier RA. 2016. Taxonomic review of the New World tamarins (Primates: Callitrichidae). Zoological Journal of the Linnean Society 177:1003-1028

*Nevo O, Orts Garri R, Ayasse M, Hernandez Salazar LT, Heymann EW, Schulz S, Laska M. 2015.  Chemical recognition of fruit ripeness in spider monkeys (Ateles geoffroyi). Scientific Reports 5:14895

*Nevo O, Heymann EW. 2015. Led by the nose: olfaction in primate foraging ecology. Evolutionary Anthropology 24:137-148

*Heymann EW, Ganzhorn JU. 2015. History of primate behavioural and ecological field research at the German Primate Center. Primate Biology 2:73-80

*Kulp J, Heymann EW. 2015. Ranging, activity budget and diet composition of red titi monkeys (Callicebus cupreus) in primary forest and forest edge. Primates 56:273-283

*Culot L, Huynen M-C, Heymann EW. 2015. Partitioning the relative contribution of one-phase and two-phase seed dispersal when evaluating seed dispersal effectiveness. Methods in Ecology and Evolution 6:178-186

*Heymann EW, Hsia SS. 2015. Unlike fellows – a review of primate–non-primate associations. Biological Reviews 90:142-156

*Ripperger SP, Heymann EW, Tschapka M, Kalko EKV. 2014. Fruit characteristics associated with fruit preferences in frugivorous bats (Phyllostomidae: Stenodermatinae and Carolliinae) and saddle-back tamarins (Saguinus nigrifrons) in Perú. Ecotropica 20:53-64

*Bialozyt R, Luettmann K, Michalczyk IM, Pinedo Saboya PP, Ziegenhagen B, Heymann EW. 2014. Primate seed dispersal leaves spatial genetic imprint throughout subsequent life stages of the Neotropical tree Parkia panurensis. Trees, Structure and Function 28:1569-1575, Erratum

Aquino R, López L, García G, Heymann EW. 2014. Diversity, abundance and habitats of primates on the Río Curaray, Peruvian Amazonia. Primate Conservation 28:1-8

*Rimbach R, Link A, Montes-Rojas A, Di Fiore A, Heistermann M, Heymann EW. 2014. Behavioral and physiological responses to fruit availability of spider monkeys ranging in a small forest fragment. American Journal of Primatology 76:1049-1061

*Kupsch D, Waltert M, Heymann EW. 2014. Forest type affects prey foraging of saddleback tamarins, Saguinus nigrifrons. Primates 55:403-413

*Bialozyt R, Flinkerbusch S, Niggemann M, Heymann EW. 2014. Predicting seed shadows of a Neotropical tree species by primates using an agent based model with internal decision-making on movement. Ecological Modelling 278:74-84

*Heymann EW, Wörner LLB, Ziegenhagen B, Bialozyt R. 2014. Research trails affect the abundance of an epiphytic tropical bromeliad. Biotropica 46:166-169

*Heymann EW, Zinner D, Ganzhorn JU. 2013. Disproportional representation of primates in the ecological literature. PLoS ONE 8:e80763

*Rimbach R, Link A, Heistermann M, Gómez-Posada C, Galvis N, Heymann EW. 2013. Effects of logging, hunting, and forest fragment size on physiological stress levels of two sympatric ateline primates in Colombia. Conservation Physiology 1: doi:10.1093/conphys/cot031

*West KA, Heymann EW, Müller B, Gillespie TR. 2013. Patterns of infection with Cryptosporidium sp. and Giardia sp. in three species of free-ranging primates in the Peruvian Amazon. International Journal of Primatology 34:339-345

*Rimbach R, Heymann EW, Link A, Heistermann M. 2013. Validation of an enzyme immunoassay for assessing adrenocortical activity and evaluation of factors that affect fecal glucocorticoid metabolite levels in two New World primates. General and Comparative Endocrinology 191:13-23

*Aquino R, Cornejo FM, Heymann EW. 2013. Primate abundance and habitat preferences on the lower Urubamba and Tambo rivers, central-eastern Peruvian Amazonia. Primates 54:377-383

*Heymann EW. 2013. Can seeds help to expel parasites? A comment on the Garber-Kitron (1997) hypothesis. International Journal of Primatology 34:445-449

Bicca-Marques JC, Heymann EW. 2013. Ecology and behaviour of titi monkeys, genus Callicebus. In: Evolutionary biology and conservation of titis, sakis and uacaris. Veiga LM, Barnett A, Ferrari SF, Norconk MA (eds). Cambridge: Cambridge University Press, p 196-207

Heymann EW, Nadjafzadeh M. 2013. Insectivory and prey foraging in titi monkeys - a case study of Callicebus cupreus and a comparison to other pitheciids. In: Evolutionary biology and conservation of titis, sakis and uacaris. Veiga LM, Barnett A, Ferrari SF, Norconk MA (eds). Cambridge: Cambridge University Press, p 215-224

*Aquino R, Cornejo FM, Pezo E, Heymann EW. 2013. Distribution and abundance and of white-fronted spider monkeys, Ateles belzebuth (Atelidae), and threats to its survival in Peruvian Amazonia. Folia Primatologica 84:1–10

*Alvarez SJ, Heymann EW. 2012. Influence of fruit physical traits on frugivory in white-handed titi monkeys(Callicebus lugens). American Journal of Physical Anthropology 147:482–488

*Bowler M, Knogge C, Heymann EW, Zinner D. 2012. Multi-level societies in New World primates? Flexibility may characterise the organisation of Peruvian red uakaris Cacajao calvus ucayaliiInternational Journal of Primatology 33:1110-1124

*Heymann EW, Lüttmann K, Michalczyk IM, Pinedo Saboya PP, Ziegenhagen B, Bialozyt R. 2012. DNA fingerprinting validates seed dispersal curves from observational studies in the Neotropical legume ParkiaPLoS ONE 7(4):e35480

*Lledo Ferrer Y, Pelaez F, Heymann EW. 2012. Territorial polemics: A response to Roberts. International Journal of Primatology 33:762-768

Heymann EW, Pérez Yamacita JG, Müller B. 2012. Morphometric data from a wild female titi monkey, Callicebus cupreus. Neotropical Primates 19:42-43

Cornjeo Fernández F, Pacheco Torres V, Heymann EW. 2011. Simposio “Primatología en el Perú: historia, estado actual y perspectivas”. Neotropical Primates 18:70-72

*Culot L, Lledo-Ferrer Y, Hoelscher O, Muñoz Lazo FJJ, Huynen M-C, Heymann EW. 2011. Reproductive failure, maternal infanticide and cannibalism in wild moustached tamarins, Saguinus mystaxPrimates 52:179-186

*Culot L, Mann DJ, Muñoz Lazo, FJJ, Huynen M-C, Heymann EW. 2011. Tamarins and dung beetles: an efficient diplochorous dispersal system in the Peruvian Amazonia. Biotropica 43:84-92

*Heymann EW. 2011. Florivory, nectarivory and pollination – a review of primate-flower interactions. Ecotropica 17:41-52

Heymann EW. 2011. Coordination in primate mixed-species troops. In: Coordination in human and non-human primate groups. Boos M, Kolbe M, Ellwart T, Kappeler PM (eds). Heidelberg: Springer, p 263-281. PDF

*Heymann EW, Flores Amasifuén C, Shahuano Tello N, Tirado Herrera ER, Stojan-Dolar M. 2011. Disgusting appetite: two-toed sloths feeding in human latrines. Mammalian Biology 76:84-86

Heymann EW, Shahuano Tello N, Hölscher O. 2011. A wild tamarin without a food – survival despite a handicap. Neotropical Primates 18:59-60

*Lledo Ferrer Y, Pelaez F, Heymann EW. 2011. The equivocal relationship between territoriality and scent marking in wild saddleback tamarins, Saguinus fuscicollisInternational Journal of Primatology 32:974-991

*Matauschek C, Roos C, Heymann EW. 2011. Mitochondrial phylogeny of tamarins (Saguinus, Hoffmannsegg 1807) with taxonomic implications for the S. nigricollis species group. American Journal of Physical Anthropology 144:564-574

*Muñoz Lazo FJJ, Culot L, Huynen M-C, Heymann EW. 2011. Effect of resting patterns of tamarins (Saguinus fuscicollis and Saguinus mystax) on the spatial distribution of seeds and seedling recruitment. International Journal of Primatology 32:223-237

*Rylands, AB, Mittermeier RA, Heymann EW, Matauschek C, Aquino R, Encarnación F, de la Torre S. 2011. The range of the golden-mantle tamarin, Saguinus tripartitus (Milne Edwards, 1878): distributions and sympatry of four tamarins in Colombia, Ecuador and Northern Peru. Primates 52:25-39

*Culot L, Muñoz Lazo, FJJ, Huynen M-C, Poncin P, Heymann EW. 2010. Seasonal variation in seed dispersal by tamarins alters seed rain in a secondary rainforest. International Journal of Primatology 31:553-569

*Heymann EW, Aquino R. 2010. Peruvian red uakaris, Cacajao calvus ucayalii, are not flooded-forest specialists. International Journal of Primatology 31:751-758

*Lledo Ferrer Y, Pelaez F, Heymann EW. 2010. Can overmarking be considered as a mean of chemical mate guarding in a wild callitrichid? Folia Primatologica 81:200-206

*Luettmann K, Mengel C, Michalczyk IM, Ziegenhagen B, Heymann EW, Pinedo Saboya PP, Bialozyt R. 2010. Characterization of nuclear microsatellite loci in the Neotropical tree Parkia panurensis (Fabaceae). American Journal of Botany 97:e34-e36

*Müller B, Mätz-Rensing K, Pérez Yamacita JG, Heymann EW. 2010. Pathological and parasitological findings in a wild red titi monkey, Callicebus cupreus (Pitheciidae, Platyrrhini). European Journal of Wildlife Research 56:601-604

*Nyakatura JA, Heymann EW. 2010. Effects of support size and orientation on symmetric gaits in free-ranging tamarins of Amazonian Peru: implications for the functional significance of primate gait sequence patterns. Journal of Human Evolution 58:242-251

*Stojan-Dolar M, Heymann EW. 2010. Vigilance of mustached tamarins in single-species and mixed-species groups – the influence of group composition. Behavioral Ecology and Sociobiology 64:325-335

*Stojan-Dolar M, Heymann EW. 2010. Vigilance in a cooperatively breeding primate. International Journal of Primatology 31:95-116

*Stojan-Dolar M, Heymann EW. 2010. Functions of intermittent locomotion in mustached tamarins (Saguinus mystax). International Journal of Primatology 31:677-692

*Wenz A, Heymann EW, PetneyTN, Taraschewski HF. 2010. The influence of human settlements on the parasite community in two species of Peruvian tamarin. Parasitology 137:675-684

Alvarez SJ, Heymann EW. 2009. Forrajeo de insectos por la viudita (Callicebus lugens). In: Estación Biológica Mosiro Itajura-Caparú – Biodiversidad en el Territorio del Yaigojé-Apaporis. Alarcón-Nieto G, Palacios E (eds). Bogotá: Conservación Internacional, p 187-192

*Aquino R, Cornejo FM, Pezo Lozano E, Heymann EW. 2009. Geographic distribution and demography of Pithecia aequatorialis (Pitheciidae) in Peruvian Amazonia. American Journal of Primatology 71:964-968

Cornejo FM, DeLuycker AM, Quintana H, Pacheco V, Heymann EW. 2009. Peruvian yellow-tailed woolly monkey Oreonax flavicauda (Humboldt, 1812). In: Primates in Peril: The World’s 25 Most Endangered Primates 2008–2010. Mittermeier RA, Wallis J, Rylands AB, Ganzhorn JU, Oates JF, Williamson EA, Palacios E, Heymann EW, Kierulff MCM, Long Yongcheng, Supriatna J, Roos C, Walker S, Cortés-Ortiz L, Schwitzer C (eds). Arlington, VA: IUCN/SSC Primate Specialist Group (PSG), International Primatological Society (IPS), and Conservation International (CI), p 74-76

*Culot, L, Huynen M-C, Gérard P, Heymann EW. 2009. Short-term post-dispersal fate of seeds defecated by two small primates in the Amazonian forest of Peru. Journal of Tropical Ecology 25:229-238

Garber PA, Estrada A, Bicca-Marques JC, Heymann EW, Strier KB. 2009. South American Primates. Comparative Perspectives in the Study of Behavior, Ecology, and Conservation. New York: Springer

*Heymann EW, von der Lage F. 2009. Non-invasive measuring of operational tongue length in callitrichids. American Journal of Physical Anthropology 139:430-433

Lledo-Ferrer Y, Hidalgo A, Heymann EW, Peláez F. 2009. Field observation of predation of a slate-colored hawk, Leucopternis schistacea, on a juvenile saddle-back tamarin, Saguinus fuscicollis. Neotropical Primates 16:82-84

Mittermeier RA, Wallis J, Rylands AB, Ganzhorn JU, Oates JF, Williamson EA, Palacios E, Heymann EW, Kierulff MCM, Long Yongcheng, Supriatna J, Roos C, Walker S, Cortés-Ortiz L, Schwitzer C. (eds). 2009. Primates in Peril: The World’s 25 Most Endangered Primates 2008–2010. Arlington, VA: IUCN/SSC Primate Specialist Group (PSG), International Primatological Society (IPS), and Conservation International (CI). 84 p. (also as Primate Conservation 24:1-57)

*Aquino R, Terrones W, Cornejo F, Heymann EW. 2008. Geographic distribution and possible taxonomic distinction of Callicebus torquatus populations (Pitheciidae: Primates) in Peruvian Amazonia. American Journal of Primatology 70:1181-1186

Heymann EW. 2008. Ressourcennutzung bei nicht-menschlichen Primaten. In: Umweltverhalten in Geschichte und Gegenwart. Vergleichende Ansätze. Knopf T (ed). Tübingen: Attempto Verlag, p 19-29

Heymann EW, Heistermann M, Löttker P, Huck M, Böhle U-R. 2008. Monitoreo no-invasivo de animales silvestres – análisis genéticos y endocrinológicos a base de muestras fecales en 'pichicos barba blanca' (Saguinus mystax, Callitrichidae, Primates) en la Estación Biológica Quebrada Blanco (EBQB), Perú. In: Memoria VI Congreso sobre Manejo de Fauna silvestre en Amazonia y Latinoamerica. Bodmer RE, Puertas P (eds). Iquitos: Wildlife Conservation Society, p 78-84

*Nadjafzadeh MN, Heymann EW. 2008. Prey foraging of red titi monkeys, Callicebus cupreus, in comparison to sympatric tamarins, Saguinus mystax and Saguinus fuscicollis. American Journal of Physical Anthropology 135:56-63

Rylands AB, Mittermeier RA, Silva Jr JS, Heymann EW, de la Torre S, Kierulff MCM, Noronha M de A, Röhe F. 2008. Marmosets and Tamarins. Pocket Identification Guide. Conservation International Tropical Pocket Guide Series, Series editors Mittermeier RA, Rylands AB. Arlington, VA: Conservation International

*Shahuano Tello N, Stojan-Dolar M, Heymann EW. 2008. A sight and video record of the oilbird, Steatornis caripensis, in Peruvian lowland Amazonia. Journal of Ornithology 149:267-269

Heymann EW. 2007. Biologische Grundlagen von Familien - Familien bei Primaten. In: Kursbuch für integrative Kinder- und Jugendpsychotherapie, Schwerpunkt: Familie. Resch F, Schulte-Markwort M (eds). Weinheim: Beltz, p 3-17

*Huck M, Roos C, Heymann EW. 2007. Spatio-genetic population structure in moustached tamarins, Saguinus mystax. American Journal of Physical Anthropology 132:576-583

*Löttker P, Huck M, Zinner DP, Heymann EW. 2007. Grooming relationships between breeding females and adult group members in a cooperatively breeding primate. American Journal of Primatology 69:1159-1172

Mittermeier RA, Ratsimbazafy J, Rylands AB, Williamson L, Oates JF, Mbora D, Ganzhorn JU, Rodríguez-Luna E, Palacios E, Heymann EW, Kierulff MCM, Yongcheng L, Supriatna J, Roos C, Walker S, Aguiar JM. 2007. Primates in Peril. The world’s 25 most endangered primates 2006–2008. Primate Conservation 22:1-40

*Smith AC, Knogge C, Huck M, Löttker P, Buchanan-Smith HM, Heymann EW. 2007. Long term patterns of sleeping site use in wild saddleback (Saguinus fuscicollis) and mustached tamarins (S. mystax). American Journal of Physical Anthropology 134:340-353

*Heymann EW. 2006. Scent marking strategies of New World primates. American Journal of Primatology 69:650-661

*Heymann EW. 2006. Introduction: The neglected sense – olfaction in primate behavior, ecology, and evolution. American Journal of Primatology 69:519-524

*Huck M, Löttker P, Böhle U-R, Heymann EW. 2005. Paternity and kinship patterns in polyandrous moustached tamarins (Saguinus mystax). American Journal of Physical Anthropology 127:449-464

*Huck M, Löttker P, Heymann EW, Heistermann M. 2005. Characterization and social correlates of fecal testosterone and cortisol excretion in wild male moustached tamarins (Saguinus mystax). International Journal of Primatology 26:159-179

*Nunn CL, Heymann EW. 2005. Malaria infection and host behaviour: a comparative study of Neotropical primates. Behavioral Ecology and Sociobiology 59:30-37

Heymann EW. 2004. Conservation categories of Peruvian primates - Categorias de conservación de los primates peruanos. Neotropical Primates 12:154-155

*Huck M, Löttker P, Heymann EW. 2004. The many faces of helping: possible costs and benefits of infant carrying and food transfer in wild moustached tamarins, Saguinus mystax. Behaviour 141:915-934

*Huck M, Löttker P, Heymann EW. 2004. Proximate mechanisms of reproductive monopolization in male moustached tamarins (Saguinus mystax). American Journal of Primatology 64:39-56

Huck M, Löttker P, Heymann EW, Heistermann M. 2004. Aspects of the behavioural and endocrine ontogeny of six wild immature male moustached tamarins (Callitrichidae). Neotropical Primates 12:131-135

*Löttker P, Huck M, Heymann EW. 2004. Demographic parameters and events in wild moustached tamarins (Saguinus mystax). American Journal of Primatology 64:425-449

*Löttker P, Huck M, Heymann EW, Heistermann M. 2004. Endocrine correlates of reproductive status in breeding and non-breeding wild female moustached tamarins, Saguinus mystax. International Journal of Primatology 25:919-937

Terrones Ruíz WI, Vela Diaz DM, Flores Amasifuén C, Heymann EW. 2004. Diurnal birth of a wild red titi monkey, Callicebus cupreus, at the Estación Biológica Quebrada Blanco. Neotropical Primates 12:15-16

*Tirado Herrera ER, Heymann EW. 2004. Does Mom need more protein? Preliminary observations on differences in diet composition in a pair of red titi monkeys, Callicebus cupreus. Folia Primatologica 75:150-153

Tirado Herrera ER, Heymann EW. 2004. Behavioural changes in response to an injured group member in a group of wild moustached tamarins (Saguinus mystax). Neotropical Primates 12:13-15

Heymann EW. 2003. Scent marking, paternal care, and sexual selection in callitrichines. In: Sexual Selection and Reproductive Competition in Primates: New Perspectives and Directions. Jones CB (ed). Special Topics in Primatology 3. Norman: American Society of Primatologists, p 305-325

Heymann EW. 2003. Monogamy in New World primates – what can patterns of olfactory communication tell us? In: Monogamy: Mating Strategies and Partnerships in Birds, Humans and Other Mammals. Reichard U, Boesch C (eds). Cambridge: Cambridge University Press, p 248-261

Heymann EW. 2003. New World monkeys II: Marmosets, tamarins, and Goeldi's monkey (Callitrichidae). In: Grzimek’s Animal Life Encyclopedia, vol 14. Kleiman DG, Geist V, Hutchins M, McDade M (eds). Farmington Hills, Mich.: Gale Group, p 115-133

Heymann EW, Canaquin Y JE. 2003. Primatologische Beobachtungen am Río Curaray, Nord-Peru. Natur und Museum 133:61-75

*Knogge C, Heymann EW. 2003. Seed dispersal by sympatric tamarins, Saguinus mystax and Saguinus fuscicollis: diversity and characteristics of plant species. Folia Primatologica 74:33-47

*Knogge C, Tirado Herrera ER, Heymann EW. 2003. Effects of passage through tamarin guts on the germination potential of dispersed seeds. International Journal of Primatology 24:1121-1128

*Tirado Herrera ER, Franke T, Knogge C, Skrabal J, Heymann EW. 2003. Flower and fruit visitors of Marcgravia longifolia in Amazonian Peru. Plant Biology 5:210-214

Heymann EW. 2002. Brazilian researchers detect rabies transmission from common marmosets to humans. Neotropical Primates 10:28-29

Heymann EW, Encarnación C F, Soini P. 2002. On the diagnostic characters and geographic distribution of the “yellow-handed” titi monkey, Callicebus lucifer, in Peru. Neotropical Primates 10:124-126

*Heymann EW, Encarnación C F, Canaquin Y JE. 2002. Primates of the Río Curaray, Northern Peruvian Amazonia. International Journal of Primatology 23:191-201

*Tirado Herrera ER, Vulinec K, Knogge C, Heymann EW. 2002. Sit and wait at the source of dung – an unusual strategy of dung beetles. Ecotropica 8:87-88

*Shahuano Tello N, Huck M, Heymann EW. 2002. Boa constrictor attack and group defense in moustached tamarins (Saguinus mystax). Folia Primatologica 73:146-148

*Heymann EW. 2001. Can phenology explain the scarcity of folivory in New World primates? American Journal of Primatology 55:171-175

*Heymann EW. 2001. Interspecific variation of scent marking behaviour in wild tamarins, Saguinus mystax and Saguinus fuscicollis. Folia Primatologica 72:253-267

*Oversluijs Vasquez MR, Heymann EW. 2001. Crested eagle (Morphnus guianensis) predation on infant tamarins (Saguinus mystax and Saguinus fuscicollis, Callitrichinae). Folia Primatologica 72:301-303

Smith AC, Tirado Herrera ER, Buchanan-Smith HM, Heymann EW. 2001. Multiple breeding females and allo-nursing in a wild group of moustached tamarins (Saguinus mystax). Neotropical Primates 9:67-69

*Feldmann M, Verhaagh M, Heymann EW. 2000. Sericomyrmex ants as seed predators. Ecotropica 6:207-209

*Heymann EW. 2000. Spatial patterns of scent-marking in wild moustached tamarins, Saguinus mystax: no evidence for a territorial function. Animal Behaviour 60:723-730

*Heymann EW. 2000. Field observations of the golden-mantled tamarin, Saguinus tripartitus, on the Río Curaray, Peruvian Amazonia. Folia Primatologica 71:392-398

Heymann EW. 2000. The number of adult males in callitrichine groups and its implication for callitrichine social evolution. In: Primate Males. Kappeler PM (ed). Cambridge: Cambridge University Press, p 64-71

*Heymann EW, Buchanan-Smith HM. 2000. The behavioural ecology of mixed-species troops of callitrichine primates. Biological Reviews 75:169-190

*Heymann EW, Knogge C, Tirado Herrera ER. 2000. Vertebrate predation by sympatric tamarins, Saguinus mystax and Saguinus fuscicollis. American Journal of Primatology 51:153-158

*Tirado Herrera ER, Knogge C, Heymann EW. 2000. Infanticide in a group of wild saddle-back tamarins, Saguinus fuscicollis. American Journal of Primatology 50:153-157

*Heymann EW, Soini P. 1999. Offspring number in Cebuella pygmaea in relation to group size and the number of adult males. Behavioral Ecology and Sociobiology 46:400-404

Heymann EW. 1999. Primate behavioural ecology and diseases - some perspectives for a future primatology. Primate Report 55:53-65

*Heymann EW, Smith AC. 1999. When to feed on gums - temporal patterns of gummivory in wild tamarins, Saguinus mystax and Saguinus fuscicollis (Callitrichinae). Zoo Biology 18:459-471

*Encarnación F, Heymann EW. 1998. Body mass of wild Callimico goeldii. Folia Primatologica 69:368-371

*Heymann EW. 1998. Sex differences in olfactory communication in a primate, the moustached tamarin, Saguinus mystax (Callitrichinae). Behavioral Ecology and Sociobiology 43:37-45

*Heymann EW. 1998. Giant fossil New World primates: arboreal or terrestrial? Journal of Human Evolution 34:99-101

*Heymann EW, Holighaus K. 1998. Der "Faktor Mensch": der Einfluß von Tierpflegern auf das Verhalten von Lisztaffen, Saguinus oedipus (Callitrichinae). Zoologischer Garten 68:222-230

Heymann EW, Knogge C, Tirado ER, Smith AC. 1998. Unter Affengnomen im Amazonasregenwald - Freilandforschung an Tamarinen in Peru. Zeitschrift des Kölner Zoo 41:63-84

*Knogge C, Heymann EW, Tirado H E. 1998. Seed dispersal of Asplundia peruviana (Cyclanthaceae) by the primate Saguinus fuscicollis. Journal of Tropical Ecology 14:99-102

*Tirado Herrera ER, Heymann EW. 1998. A possible case of myiasis in a wild moustached tamarin, Saguinus mystax (Callitrichinae, Cebidae). Journal of Medical Primatology 27:272-273

*Heymann EW. 1997. The relationship between body-size and mixed-species troops of tamarins (Saguinus sp.). Folia Primatologica 68:287-295

*Heymann EW, Knogge C. 1997. Field observations on the Neotropical pygmy squirrel, Sciurillus pusillus (Rodentia: Sciuridae), in Peruvian Amazonia. Ecotropica 3:67-69

*Heymann EW. 1996. Social behavior of wild moustached tamarins, Saguinus mystax, at the Estación Biológica Quebrada, Peruvian Amazonia. American Journal of Primatology 38:101-113

Heymann EW. 1996. Monkeys and apes (Primates). Pp. 176-185 in: Wildlife Resources: A Global Account of Economic Use. Roth HH, Merz G (eds). Heidelberg: Springer

*Heymann EW, Sicchar V LA, Tapia R J. 1996. Experiences with mixed-species housing of tamarins, Saguinus fuscicollis and Saguinus mystax (Primates: Callitrichidae), in an outdoor enclosure. Der Zoologische Garten 66:381-390

*Kappeler PM, Heymann EW. 1996. Nonconvergence in the evolution of primate life history and socio-ecology. Biological Journal of the Linnean Society 59:297-326

*Nickle DA, Heymann EW. 1996. Predation on Orthoptera and other orders of insects by tamarin monkeys, Saguinus mystax mystax and Saguinus fuscicollis nigrifrons (Primates: Callitrichidae), in northeastern Peru. Journal of Zoology, London 239:799-819

*Heymann EW. 1995. Sleeping habits of tamarins, Saguinus mystax and Saguinus fuscicollis (Mammalia; Primates; Callitrichidae), in northeastern Peru. Journal of Zoology, London 237:211-226

*Heymann EW. 1995. Urine washing and related behaviour in wild moustached tamarins, Saguinus mystax (Callitrichidae). Primates 36:259-264

*Knogge C, Heymann EW. 1995. Field observation of twinning in the dusky titi monkey, Callicebus cupreus. Folia Primatologica 65:118-120

Heymann EW. 1994. Tiergerechte Haltung von Marmosetten und Tamarinen (Primates: Callitrichidae) aus der Sicht eines Freilandbiologen. Tierlaboratorium 17:43-58

Heymann EW, Aquino R. 1994. Exploraciones primatológicas en las quebradas Blanco, Blanquillo y Tangarana (Río Tahuayo, Amazonía Peruana). Folia Amazónica 6:125-138

Heymann EW. 1993. The role of primates in tropical ecosystems. Pp. 103-108 in: Animal-Plant Interactions in Tropical Environments. Results of the Annual Meeting of the German Society for Tropical Ecology held at Bonn, February 13-16, 1992. Barthlott W, Naumann CM, Schmidt-Loske K, Schuchmann KL (eds). Bonn: Zoologisches Forschungsinstitut und Museum Alexander Koenig

Heymann EW. 1993. Field studies on tamarins, Saguinus mystax and Saguinus fuscicollis, in northeastern Peru. Neotropical Primates 1(4):10-11

*Heymann EW. 1992. Associations of tamarins (Saguinus mystax and Saguinus fuscicollis) and double-toothed kites (Harpagus bidentatus) in Peruvian Amazonia. Folia Primatologica 59:51-55

Heymann EW. 1992. Seed ingestion and gastrointestinal health in tamarins? Laboratory Primate Newsletter 31(3):15-16

Sicchar LA, Heymann EW. 1992. Preliminary observations on external signs of estrus in moustached tamarins, Saguinus mystax (Callitrichidae). Laboratory Primate Newsletter 31(1):4-6

*Heymann EW, Hartmann G. 1991. Geophagy in moustached tamarins, Saguinus mystax (Platyrrhini: Callitrichidae), at the Río Blanco, Peruvian Amazonia. Primates 32:533-537

*Bartecki U, Heymann EW. 1990. Field observations on scent marking behaviour in saddle-back tamarins, Saguinus fuscicollis (Callitrichidae, Primates). Journal of Zoology, London 220:87-99

*Heymann EW. 1990. Social behaviour and infant carrying in a group of moustached tamarins, Saguinus mystax (Primates: Platyrrhini: Callitrichidae), on Padre Isla, Peruvian Amazonia. Primates 31:183-196

*Heymann EW. 1990. Interspecific re

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