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Marc van Roosmalen
Marc van Roosmalen
Marc van Roosmalen
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Marc van Roosmalen (born 23 June 1947) is a Dutch-Brazilian primatologist. He was elected as one of the "Heroes for the Planet" by Time magazine in 2000.[1] His research has led to the identification of several new monkey species, as well as other mammals and plants, although some of these identifications are challenged.[2] He is also an activist in the protection of the Brazilian rainforest.[3] Van Roosmalen was awarded the honour of officer in the Order of the Golden Ark by Prince Bernhard of the Netherlands in 1997.[4][5]

Key Information

Career

[edit]

Van Roosmalen studied biology at the University of Amsterdam and did four years of doctoral fieldwork beginning in 1976 studying the red-faced spider monkey in Suriname. He later did two more years of work in French Guiana, following which he published the book Fruits of the Guianan Flora. In 1986 he was hired by the INPA (Brazilian National Institute of Amazonian Research, where he initially thrived. During this period, he launched a non-governmental organization focused on creating wilderness preserves in the deep Amazon. He became a naturalized Brazilian citizen in 1997. Marc considers Alfred Russel Wallace his icon and is an advocate of Wallace's "river barrier" hypothesis that the major rivers of the Amazon basin serve as barriers that create separate genetically distinct evolutionary regions. [2]

Personal life

[edit]

Marc grew up in Tilburg, a city in the southern part of the Netherlands. His father was a chemist. He met and married his first wife while living in Utrecht, where he had moved for school at age 17. They had two sons. In early 2008, he divorced his first wife and married his Brazilian girlfriend.[6]

Selected publications

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  • A Pictorial Field Guide to the Woody Plants of the Amazon Scholars' Press, OmniScriptum, July 2021, Vol. I, Fruit Plates, 320p. Paperback, ISBN 978-6138932987
  • A Pictorial Field Guide to the Woody Plants of the Amazon Scholars' Press, OmniScriptum, July 2021, Vol. II, ACANTHACEAE - BURSERACEAE, 381p. Paperback, ISBN 978-6138933625
  • A Pictorial Field Guide to the Woody Plants of the Amazon Scholars' Press, OmniScriptum, July 2021, Vol. III, CACTACEAE - GESNERIACEAE, 323p. Paperback, ISBN 978-6138946014
  • A Pictorial Field Guide to the Woody Plants of the Amazon Scholars' Press, OmniScriptum, July 2021, Vol. IV, GNETACEAE - LECYTHIDACEAE, 229p. Paperback, ISBN 978-6138946021
  • A Pictorial Field Guide to the Woody Plants of the Amazon Scholars' Press, OmniScriptum, July 2021, Vol. V, LEGUMINOSAE, 316p. Paperback, ISBN 978-6138946069
  • A Pictorial Field Guide to the Woody Plants of the Amazon Scholars' Press, OmniScriptum, July 2021, Vol. VI, LILIACEAE - MORACEAE, 247p. Paperback, ISBN 978-6138946076
  • A Pictorial Field Guide to the Woody Plants of the Amazon Scholars' Press, OmniScriptum, July 2021, Vol. VII, MYRISTICACEAE - ROSACEAE, 223p. Paperback, ISBN 978-6138946083
  • A Pictorial Field Guide to the Woody Plants of the Amazon Scholars' Press, OmniScriptum, July 2021, Vol. VIII, RUBIACEAE - SAPINDACEAE, 184p. Paperback, ISBN 978-6138946113
  • A Pictorial Field Guide to the Woody Plants of the Amazon Scholars' Press, OmniScriptum, July 2021, Vol. IX, SAPOTACEAE - VOCHYSIACEAE, 270p. Paperback, ISBN 978-6138948704
  • Wild Fruits from the Amazon, CreateSpace Independent Publishing Platform, 2013, Vol. I, Plates, Paperback, ISBN 978-1493776160
  • Wild Fruits from the Amazon, CreateSpace Independent Publishing Platform, 2015, Vol. II, Plates, Paperback, ISBN 978-1516879533
  • Wild Fruits from the Amazon, CreateSpace Independent Publishing Platform, 2017, Vol. III, Plates, Paperback, ISBN 978-1542831451
  • Barefoot through the Amazon – On the Path of Evolution, CreateSpace Independent Publishing Platform, 2013, 550p., Paperback, ISBN 978-1482578249
  • A Shaman’s Apprentice - Traditional Healing in the Brazilian Amazon, CreateSpace Independent Publishing Platform, 2013, Vol. III, 115p., Paperback ISBN 978-1484034415
  • On the Origin of Allopatric Primate Species and the Principle of Metachromic Bleaching, CreateSpace Independent Publishing Platform, 2013, ISBN 978-1494330347, co-authored by Dr. Tomas van Roosmalen
  • Distributions and Phylogeography of Neotropical Primates, CreateSpace Independent Publishing Platform, 2014, Paperback, ISBN 978-1494852535, co-authored by Dr. Tomas van Roosmalen
  • On the Origin of Allopatric Primate Species, 2016, Biodiversity Journal, vol. 7, no. 1, p. 117-198.[1] ISSN 2039-0394 (Print Edition) ISSN 2039-0408 (Online Edition), co-authored with Tomas van Roosmalen
  • Live from the Amazon - On the Path of Evolution, CreateSpace Independent Publishing Platform, 2015, 440p., Paperback, ISBN 978-1517514631
  • Black Gold: Pre-Columbian Farming on Terra Preta Anthrosol in the Amazon, CreateSpace Independent Publishing Platform, 2016, 158p., Paperback, ISBN 978-1534790148
  • Live from the Amazon - On the Path of Evolution; A Personal Account of Amazonian Human and Natural History, Lambert Academic Publishing (LAP), April 2020, 667p. Paperback, ISBN 978-6202522069
  • Man's Territorial Primate Factor - Evolutionary Roots of Tribalism in Human Societies, Lambert Academic Publishing (LAP), March 2020, 253p. Paperback, ISBN 978-6200536716
  • Blootsvoets door de Amazone - De Evolutie op het Spoor, Uitgeverij Bert Bakker, Amsterdam, 2008, 408p. Paperback, ISBN 978-9035133105
  • Tropenkolder - Belevenissen in de jungle van een Held van de Planeet, Uitgeverij Bert Bakker, Amsterdam, 2010, 312p. Paperback, ISBN 9789035135550
  • Darwin in een Notendop, Uitgeverij Bert Bakker, Amsterdam, 2009, 125p. Paperback, ISBN 9789035134188

Controversies

[edit]

In 2002, he was fined by the IBAMA (Brazilian Ministry of the Environment's Enforcement Agency) for illegal transportation of monkeys and orchids from the unexplored Amazonian region of Serra do Aracá. In April 2003, Van Roosmalen was fired from his senior scientist job with the federal institute INPA for alleged 'illegal' export abroad of environmental genetic samples.[7]

In 2007, he was arrested by the Brazilian government for illegally keeping orphaned monkeys in a monkey refuge at his house in Manaus and for misappropriation of Brazilian public funds.[7] He was sentenced to 14+ years in prison. Van Roosmalen claims that he over and over applied for permits for his monkey preserve. He was placed in the notorious Raimundo Vidal Pessoa Penitentiary in Manaus-AM. At one point Van Roosmalen shared a cell with two violent crack addicts whose drug debts he had to pay to stay alive.[6] After three months in 'hell on earth', he was set free on appeal.[8][9]

Van Roosmalen told a Wired news reporter that he has a video of two ex-policemen knocking on his door immediately after tucking revolvers into their pants. Believing that he would be killed if he stayed, he and his partner Vivian Garcia went on the run to the Caribbean Island of Margarita with no plans to return to their home in Manaus as of August 2007.[6] In exile, on contract with a Dutch publishing house, Van Roosmalen began to write popular-scientific books about his life in the Amazon. In December 2008, he was fully absolved from all alleged "crimes against Mother Nature" by the Supreme Court in Brasilia-DF.

In 2010, Marc van Roosmalen received a grant from the Scholar Rescue Fund of the Institute of International Education in NY. He was appointed as a Distinguished Scholar in Residence for the 2010-2011 academic year at Bard College.[10]

Van Roosmalen's dwarf porcupine and Van Roosmalen's dwarf marmoset are discovered by and named after him. He named the Prince Bernhard's titi after the late Prince Bernhard of the Netherlands, co-founder and former president of the WWF.

References

[edit]
[edit]
Revisions and contributorsEdit on WikipediaRead on Wikipedia

Marc van Roosmalen

View on Grokipedia
from Grokipedia
''Marc van Roosmalen'' is a Dutch-Brazilian primatologist and conservationist known for his extensive fieldwork in the Amazon rainforest and his discovery of several previously unknown primate species. Van Roosmalen has dedicated over 25 years to field research in South America, beginning with 17 years of service in Brazil, where he contributed significantly to the understanding of Amazonian biodiversity through the description of new monkey species and botanical studies. He is credited with discoveries such as the black-crowned dwarf marmoset and has authored comprehensive field guides, including works on the woody plants of the Amazon. His career has included recognition as a leading field biologist, often compared to a modern-day Alexander von Humboldt, but has also been marked by significant challenges, including legal proceedings in Brazil related to biopiracy and embezzlement accusations, which concluded after a period of imprisonment. He has been associated with efforts to protect high-biodiversity areas in the Amazon through conservation initiatives.

Early life and education

Marc van Roosmalen earned his Master's degree in Biology from the Universities of Utrecht and Amsterdam between 1968 and 1974, with a specialization in primatology, tropical ecology, and plant taxonomy. He completed his Ph.D. in Ecology and Nature Conservation in 1980 through the Universities of Wageningen and Amsterdam. His doctoral thesis, titled "Habitat Preferences, Diet, Feeding Strategy and Social Organization of the Black Spider Monkey (Ateles paniscus) in Suriname," focused on the ecology and behavior of the black spider monkey based on field research conducted in Suriname. This dissertation marked the culmination of his formal academic training and set the stage for his subsequent fieldwork in the region.

Scientific career

Early fieldwork in Suriname and the Guianas

Marc van Roosmalen conducted four years of doctoral fieldwork beginning in 1976, focusing on the red-faced spider monkey (Ateles paniscus) in Suriname. This research examined the primate's ecology, including habitat preferences, diet, feeding strategies, and social organization in the Surinamese rainforest. Concurrent with and prior to this doctoral work, he produced early publications on wild fruits, notably the Surinaams Vruchtenboek, issued in two volumes between 1973–1975 and 1977, documenting 1,400 wild fruit species and emphasizing plant-animal interactions in the Guianan region. Following his Suriname studies, van Roosmalen spent two additional years conducting field research in French Guiana, which directly informed his major publication Fruits of the Guianan Flora in 1985. This comprehensive work cataloged fruits of the Guianas and highlighted their role in supporting frugivorous animals, particularly primates, underscoring the interconnectedness of flora and fauna in tropical ecosystems. These early efforts established his expertise in tropical forest ecology and laid the foundation for his later career in Brazil, where he joined INPA in 1986.

Research positions and affiliations in Brazil

Van Roosmalen served as a senior research scientist at the National Institute for Amazonian Research (INPA) in Manaus from 1986 to 2003, contracted by the Brazilian Ministry of Science and Technology. This position provided him with a base for extensive fieldwork and studies across the Amazon basin, where he focused on biodiversity and ecological patterns. In 1999, he founded the Amazon Association for the Preservation of High Biodiversity Areas (AAPA), a non-governmental organization, and was elected its president. The NGO supported his broader research and conservation objectives in the region. From 1996 to 2003, van Roosmalen conducted long-term surveys of megafauna and flora—particularly native fruits—along the major tributaries of the Amazon River to examine biogeography and test Wallace’s river-barrier hypothesis. These investigations formed a key component of his scientific agenda during his INPA affiliation and contributed to advancing understanding of Amazonian biodiversity patterns.

Species discoveries and taxonomic contributions

Marc van Roosmalen has made significant taxonomic contributions through the description of several new primate species from the Amazon rainforest, primarily based on fieldwork in interfluvial regions of Brazil. In 1998, he formally described the dwarf marmoset as Callithrix humilis, following its discovery in 1996 approximately 400 km south of Manaus. This tiny primate, one of the smallest monkeys known, was reclassified in 2003 into a new monotypic genus as Callibella humilis based on molecular, morphological, ecological, and ethological distinctions from other callitrichines. The species is currently recognized by some authorities as Callibella humilis while others place it in Mico as Mico humilis. In 2000, van Roosmalen published descriptions of two additional Amazonian marmosets from the Madeira-Tapajós interfluve: Mico manicorensis and Mico acariensis. These species were distinguished by features such as vocalizations, fur patterns, and geographic distribution. In 2002, he described two new titi monkeys in a review of the genus Callicebus: Callicebus bernhardi and Callicebus stephennashi. Beyond primates, van Roosmalen described a new tree species in the Lecythidaceae family, Lecythis oldemani, in 2004. He also reported a new peccary species, Pecari maximus (giant peccary), from the Brazilian Amazon, with the description published in 2007 following submission in 2006. Some of these taxonomic designations have been contested or revised within the scientific community; for instance, the distinct species status of Pecari maximus has faced scrutiny and questions regarding its separation from Pecari tajacu, while certain marmoset names have been proposed as synonyms in later analyses.

Conservation efforts

Establishment of private nature reserves

Marc van Roosmalen managed the Center for the Rehabilitation and Re-introduction of Endangered Wildlife from 1989 to 1994 in the federal Rio Cuieiras Nature Reserve, where confiscated animals—particularly monkeys from the illegal pet trade—were socialized, rehabilitated, and in some cases re-introduced to their natural habitats. In 1999, he founded the Amazon Association for the Preservation of High Biodiversity Areas (AAPA), a local NGO dedicated to acquiring pristine rainforest tracts with exceptional biodiversity for designation as Private Natural Heritage Reserves (RPPNs) under Brazil's 1996 environmental law, which he had helped advocate for to enable non-governmental conservation purchases. In 2002, through AAPA, van Roosmalen acquired the Lago Uauacu Private Nature Reserve, encompassing over 20,000 hectares around the 40-kilometer-long Uauacu Lake on the left bank of the lower Rio Purus, protecting an exceptionally high primate diversity with 15 coexisting species considered the highest monkey diversity in the New World. In the same year, he established the HRH Prince Bernhard Nature Reserve of 7,500 hectares in virgin terra firme and igapó forests along the left bank of the lower Rio Aripuanã, safeguarding viable populations of the newly described titi monkey Callicebus bernhardi alongside other primates. These private reserves have preserved critical habitats rich in primate species, some of which van Roosmalen contributed to describing.

Advocacy for Amazon biodiversity

Marc van Roosmalen has been widely recognized for his advocacy in protecting Amazon biodiversity, particularly through highlighting the region's extraordinary species richness and the need for targeted conservation measures. His efforts have focused on promoting species-based conservation approaches and emphasizing the role of natural barriers in generating and maintaining high levels of endemism in the Amazon rainforest. In 1997, he was knighted as an Officer in the Order of the Golden Ark by Prince Bernhard of the Netherlands, an honor awarded for outstanding contributions to nature conservation. In 2000, Time magazine selected him as one of its "Heroes for the Planet," a prestigious environmental award recognizing his work in documenting and safeguarding Amazon biodiversity; he received the honor in San Francisco. In 2001, he received the Mr. C.Th.F. Thurkow Prize from the Dutch Foundation Het Kronendak for his environmental advocacy and contributions to conservation science. Van Roosmalen's advocacy has prominently supported Alfred Russel Wallace's river-barrier hypothesis, which explains Amazonian speciation through the isolating effects of major rivers, and he has advocated for conservation policies that prioritize protection based on these biogeographic patterns to preserve unique species and ecosystems.

Publications

Scientific field guides and taxonomic works

Marc van Roosmalen has produced several influential scientific field guides and taxonomic publications focused on the fruits and woody plants of the Guianan and Amazonian regions. His 1985 book A Field Guide to the Fruits of the Guianan Flora compiles illustrations and descriptions of approximately 2,000 species of wild fruits from the rain forests of the Guayana Shield. From 1996 to 2002, he published the series A Guide to the Fruits of the Amazonian Rain Forest, which covers multiple plant families including Myristicaceae, Sapotaceae, Leguminosae, Lecythidaceae, Annonaceae, and Moraceae, illustrated with black-and-white line drawings, digital pictures, and watercolour paintings. Building on these foundations, Van Roosmalen authored Wild Fruits from the Amazon, a multi-volume illustrated series published between 2013 and 2017, which provides detailed family, genus, and species descriptions emphasizing field characters such as leaves, inflorescences, fruits, seeds, and ecological notes on habit, dispersal, habitat, and distribution across the larger Amazon region, including the Guayana Shield. In 2021, he completed the nine-volume A Pictorial Field Guide to the Woody Plants of the Amazon, encompassing 109 families, 1,000 genera, and over 5,000 species of woody plants above 1 m in height, with lush illustrations including fruit plates in Volume I and botanical/ecological field characters in subsequent volumes organized alphabetically by family to facilitate in situ identification. Van Roosmalen has also contributed to primate taxonomy through co-authored works on phylogeography during 2013–2016, including pictorial guides and analyses of distributions among Neotropical primates. Marc van Roosmalen has authored several popular science books that draw on his decades of fieldwork in the Amazon to explore evolutionary biology, rainforest ecology, and personal adventures in an accessible manner. These works blend autobiographical storytelling with explanations of natural processes and conservation concerns, aiming to raise public awareness about Amazon biodiversity. His initial popular book, Blootsvoets door de Amazone - De Evolutie op het Spoor, appeared in Dutch in 2008 and was later published in English as Barefoot through the Amazon – On the Path of Evolution in 2013. The book provides a personal account of his long-term research in remote Amazon regions, including discoveries of previously unknown mammals and plants, while applying Alfred Wallace's river-barrier hypothesis to account for the region's exceptional biodiversity through geographic isolation and ecological dynamics. In 2009, van Roosmalen released Darwin in een Notendop, a concise Dutch-language introduction to Charles Darwin's theory of evolution by natural selection. Tropenkolder, published in 2010, chronicles his thrilling and often perilous experiences living and working in the Amazon jungle as a recognized conservation figure. The book Live from the Amazon - On the Path of Evolution followed in 2015, with an expanded edition issued in 2020. It integrates autobiographical details—such as solitary fieldwork challenges, primate observations, and survival on forest resources—with scientific discussions of Amazonian ecology, co-evolution, and biodiversity hotspots threatened by habitat loss.

Media and television involvement

On-screen appearances in documentaries

Marc van Roosmalen has appeared as himself in several wildlife-focused television programs and documentaries, showcasing his expertise in primate discovery and Amazonian biodiversity. In 2001, he featured in a single episode of the travel and adventure series Treks in a Wild World, specifically the episode "Trekking in the Amazon," where he appeared as himself. The 2006 National Geographic documentary Species Hunter centered on van Roosmalen's work, presenting him as a biologist with a passion for primates who has made a career discovering, naming, and reclassifying species, while following his efforts to search for large unknown mammals in Brazil's remote forests. Filmed in 2003, the film highlighted his adventurous fieldwork in the Amazon. In 2009, he appeared as himself in one episode of the BBC series Last Chance to See, which explored endangered species and included encounters with scientists in the field. That same year, van Roosmalen was a guest on the Dutch television talk show Pauw & Witteman for one episode, appearing as himself.

Production and consulting for wildlife programming

Marc van Roosmalen produced four wildlife documentaries for the British company Survival Anglia Ltd from 1994 to 1997, with filming conducted in remote Amazonian locations as well as at his Rehabilitation and Breeding Center for Endangered Animals near Manaus. Beyond this production work, he has served as a scientific consultant on nature and conservation documentaries for multiple international broadcasters, including the Dutch networks VPRO, AVRO, and TROS; British outlets BBC and Survival Anglia; American channels Discovery and National Geographic; Japanese broadcaster NHK; German networks ZDF and ARTE; and others. These consulting contributions are primarily documented through his own biographical accounts, as public databases such as IMDb offer limited credits for such behind-the-scenes roles and focus mainly on his on-screen appearances in wildlife programs.

Arrest, charges, and imprisonment

In July 2002, Marc van Roosmalen was fined by IBAMA for illegally transporting four orphaned monkeys and common orchids without proper permits while returning from a research trip. The incident drew significant media attention in Brazil and prompted further investigations into his activities. In February 2003, IBAMA agents raided his home in Manaus and confiscated 23 monkeys he was keeping there, citing a lack of authorization despite his claims of applying for permits multiple times without response. He was subsequently dismissed from his position at INPA in April 2003 following an internal inquiry related to administrative violations and allegations of illegally exporting genetic samples. Van Roosmalen's practice of caring for orphaned monkeys at his residence stemmed from his conservation efforts to rehabilitate animals rescued from the wild. On June 15, 2007, he was arrested at his home in Manaus on federal charges that included illegally keeping protected monkeys without authorization and misappropriation of public funds, specifically related to aluminum scaffolding imported years earlier under an arrangement tied to his INPA affiliation and later used for animal enclosures. He was convicted by a federal judge in Manaus and sentenced to more than 14 years in prison, with the bulk of the penalty stemming from the misappropriation charge. He was imprisoned in the Raimundo Vidal Pessoa Penitentiary in Manaus, a facility described as overcrowded and dangerous, where he spent nearly two months in a bare concrete cell shared with other inmates under harsh conditions before being granted temporary release pending appeal.

Acquittal and subsequent impact

In 2009, van Roosmalen was acquitted of all charges by the Superior Tribunal de Justiça (STJ). This decision fully absolved him following earlier proceedings and allowed him to avoid further imprisonment or restrictions related to the case. The acquittal came after he had temporarily fled to Isla Margarita in 2007 fearing for his safety amid ongoing threats and legal pressures. Despite the resolution of his legal issues, political pressures in Brazil continued to hinder his conservation and educational initiatives. In 2010, he received a grant from the Institute of International Education's Scholar Rescue Fund, which supported his relocation to the United States. He served as Distinguished Scholar in Residence at Bard College from 2010 to 2011, where he conducted research on Amazonian ecology and taught courses on related topics and human rights issues in the region. This period enabled him to resume scholarly and conservation-related work in a safer environment.

Personal life

Family and citizenship

Marc van Roosmalen was born in the Netherlands and became a naturalized Brazilian citizen in 1997. He was first married, but the marriage ended in divorce. The couple had two sons, Vasco Marcus and Tomas. Tomas has co-authored scientific papers with his father on topics including the origin of allopatric primate species. In early 2008, van Roosmalen married Antônia Vivian Silva Garcia.

Later career and residence

In 2007, van Roosmalen was convicted and served approximately two months in prison before being released on habeas corpus pending appeal. Following the resolution of his legal proceedings, he resumed his research activities and was appointed Distinguished Scholar in Residence at Bard College for the 2010–2011 academic year, where he conducted research and taught courses on Amazon ecology and human rights issues. He has primarily resided in the Manaus area of Brazil since the late 1980s, maintaining ongoing fieldwork in the Amazon rainforest focused on biodiversity surveys and conservation. Since 2013, van Roosmalen has concentrated on publishing field guides and popular science books documenting Amazonian flora, fauna, and evolutionary processes, including a multi-volume pictorial guide to the woody plants of lowland Amazonia and works exploring natural and human history. He continues to engage in professional consulting for expeditions, filmmakers, publishers, universities, and NGOs, while advocating for protected areas in regions such as the Rio Aripuanã basin.

References

  1. https://www.scholarrescuefund.org/featured_scholar/dr-marc-van-roosmalen/
  2. https://marcvanroosmalen.info/aboutmarc.htm
  3. https://neprimateconservancy.org/black-crowned-dwarf-marmoset/
  4. https://www.academia.edu/89975227/A_Pictorial_Field_Guide_to_All_Known_Woody_Plants_of_the_Amazon_Vo_Iumes_I_IX_2_250_p
  5. https://www.smithsonianmag.com/science-nature/trials-of-a-primatologist-17248331/
  6. https://www.science.org/doi/10.1126/science.322.5907.1451a
  7. https://research.wur.nl/en/publications/habitat-preferences-diet-feeding-strategy-and-social-organization/
  8. https://www.scielo.br/j/aa/a/kwLWM3NqTHsTsgk7TYQ4WhG/abstract/?lang=en
  9. https://www.wired.com/2008/05/mf-monkeybusiness/
  10. https://marcvanroosmalen.info/images/Description_of_New_Marmoset_Genus_Callibella.pdf
  11. https://news.mongabay.com/2007/11/new-peccary-species-discovered-by-embattled-amazon-scientist/
  12. https://time.com/archive/6740508/marc-van-roosmalen-a-rain-forest-odyssey/
  13. https://www.theguardian.com/environment/2007/jun/23/brazil.conservation
  14. http://kronendak.nl/overige-prijzen/de-mr-c-th-f-thurkow-prijs/
  15. https://www.bard.edu/news/releases/pr/fstory.php?id=1974
  16. https://www.amazon.com/Wild-Fruits-Amazon-Marc-Roosmalen/dp/1723433969
  17. https://livefromtheamazon.com/?product=a-pictorial-field-guide-to-the-woody-plants-of-the-amazon
  18. https://www.goodreads.com/book/show/20689289-distributions-and-phylogeography-of-neotropical-primates
  19. https://www.amazon.com/Barefoot-through-Amazon-Path-Evolution/dp/1482578247
  20. https://www.bol.com/nl/nl/p/darwin-in-een-notendop/1001004006422007/
  21. https://www.amazon.co.uk/Tropenkolder-belevenissen-jungle-Held-Planeet/dp/9035135555
  22. https://www.amazon.com/Live-Amazon-Marc-G-M-Roosmalen/dp/1517514630
  23. https://www.imdb.com/name/nm3297063/
  24. https://www.imdb.com/title/tt1631505/
  25. https://www.imdb.com/title/tt12188134/
  26. https://www.imdb.com/title/tt1409667/
  27. https://www.imdb.com/title/tt1361962/
  28. http://abradivciencia.blogspot.com/2016/02/perfil-marc-van-roosmalen-o-homem-que.html
  29. https://www.biodiversityjournal.com/authors/category/marc-g-m-van-roosmalen.html
  30. https://livefromtheamazon.com/?page_id=2
  31. https://www.marcvanroosmalen.info/
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