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Roberto A. Delgado
Researcher at University of Southern California
Publications - 16
Citations - 690
Roberto A. Delgado is an academic researcher from University of Southern California. The author has contributed to research in topics: Population & Gesture. The author has an hindex of 8, co-authored 15 publications receiving 615 citations. Previous affiliations of Roberto A. Delgado include National Science Foundation.
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Journal ArticleDOI
The behavioral ecology and conservation of the orangutan (Pongo pygmaeus): A tale of two islands
TL;DR: Researchers generally recognize sexually mature male orangutans with two physically distinct morphs, a phenomenon described as bimaturism, which is known for forcing copulations with adult females.
Journal ArticleDOI
Understanding the impacts of land-use policies on a threatened species: is there a future for the Bornean orang-utan?
Serge A. Wich,David L. A. Gaveau,Nicola K. Abram,Marc Ancrenaz,Marc Ancrenaz,Alessandro Baccini,Stephen Brend,Lisa M. Curran,Roberto A. Delgado,Andi Erman,Gabriella Fredriksson,Benoit Goossens,Simon J. Husson,Isabelle Lackman,Andrew J. Marshall,Anita Naomi,Elis Molidena,Nardiyono,Anton Nurcahyo,Kisar Odom,Adventus Panda,Purnomo,Andjar Rafiastanto,Dessy Ratnasari,Adi H. Santana,Imam sapari,Carel P. van Schaik,Jamartin Sihite,Stephanie N. Spehar,Eddy Santoso,Amat Suyoko,Albertus Tiju,Graham Usher,Sri Suci Utami Atmoko,Erik P. Willems,Erik Meijaard,Erik Meijaard +36 more
TL;DR: A large scale island-wide land-use masterplan is needed that clarifies which possible land uses and managements are allowed in the landscape and provides new standardized strategic conservation policies to avoid potential decline in orang-utan habitats.
Journal ArticleDOI
Global demand for natural resources eliminated more than 100,000 Bornean orangutans
Maria Voigt,Serge A. Wich,Serge A. Wich,Marc Ancrenaz,Erik Meijaard,Nicola K. Abram,Graham L. Banes,Graham L. Banes,Graham L. Banes,Gail Campbell-Smith,Laura D'Arcy,Roberto A. Delgado,Andi Erman,David L. A. Gaveau,Benoit Goossens,Benoit Goossens,Stefanie Heinicke,Max Houghton,Simon J. Husson,Ashley Leiman,Karmele Llano Sanchez,Niel Makinuddin,Andrew J. Marshall,Ari Meididit,Ari Meididit,Jukka Miettinen,Roger Mundry,Musnanda,Nardiyono,Anton Nurcahyo,Kisar Odom,Adventus Panda,Didik Prasetyo,Aldrianto Priadjati,Purnomo,Andjar Rafiastanto,Anne E. Russon,Truly Santika,Jamartin Sihite,Stephanie N. Spehar,Matthew J. Struebig,Enrique Sulbaran-Romero,Albertus Tjiu,Jessie A. Wells,Kerrie A. Wilson,Hjalmar S. Kühl +45 more
Book ChapterDOI
Social organization and male-female relationships
T Mitra Setia,Roberto A. Delgado,S S Utami Atmoko,Ian Singleton,C P van Schaik,Serge A. Wich +5 more
TL;DR: This paper found that females tend to remain within audible range of the dominant flanged males, using his long calls to adjust their ranging, reflecting the two main types of parties encountered in orangutans.
Journal ArticleDOI
First integrative trend analysis for a great ape species in Borneo
Truly Santika,Marc Ancrenaz,Kerrie A. Wilson,Stephanie N. Spehar,Nicola K. Abram,Graham L. Banes,Graham L. Banes,Graham L. Banes,Gail Campbell-Smith,Lisa M. Curran,Laura D'Arcy,Roberto A. Delgado,Andi Erman,Benoit Goossens,Benoit Goossens,Herlina Hartanto,Max Houghton,Simon J. Husson,Hjalmar S. Kühl,Isabelle Lackman,Ashley Leiman,Karmele Llano Sanchez,Niel Makinuddin,Andrew J. Marshall,Ari Meididit,Ari Meididit,Kerrie Mengersen,Musnanda,Nardiyono,Anton Nurcahyo,Kisar Odom,Adventus Panda,Didik Prasetyo,Purnomo,Andjar Rafiastanto,Slamet Raharjo,Dessy Ratnasari,Anne E. Russon,Adi H. Santana,Eddy Santoso,Iman Sapari,Jamartin Sihite,Ahmat Suyoko,Albertus Tjiu,Sri Suci Utami-Atmoko,Carel P. van Schaik,Maria Voigt,Jessie A. Wells,Serge A. Wich,Serge A. Wich,Erik P. Willems,Erik Meijaard +51 more
TL;DR: This study applied novel methods for integrating field and interview survey data for the critically endangered Bornean orangutan, allowing a deeper understanding of the species’ persistence through time and highlights the urgency of determining specific management interventions needed to counter the trend of decline and its associated drivers.