Article
Multidisciplinary Sciences
Sara Valdivieso-Cortadella, Chiara Bernardi-Gomez, Filippo Aureli, Miquel Llorente, Federica Amici
Summary: A study found that yawning and scratching contagion exists in a wild group of Geoffroy's spider monkeys. Individuals who observed others yawning or scratching were more likely to exhibit the behavior themselves. This finding is important for understanding the origins of behavioral contagion in primates.
SCIENTIFIC REPORTS
(2023)
Article
Multidisciplinary Sciences
Christina J. Campbell, Aleksey Maro, Victoria Weaver, Robert Dudley
Summary: This study found that black-handed spider monkeys consume ethanol through the fruits of Spondias mombin on Barna Colorado Island, Panama. The ethanol content in partially consumed fruits that were dropped by monkeys was typically in the range of 1-2%. Urine samples from the monkeys tested positive for ethanol metabolites.
ROYAL SOCIETY OPEN SCIENCE
(2022)
Article
Ecology
Marcelo Araya-Salas, Grace Smith-Vidaurre, Gloriana Chaverri, Juan C. Brenes, Fabiola Chirino, Jorge Elizondo-Calvo, Alejandro Rico-Guevara
Summary: Animal acoustic signals are widely used for research purposes due to their ease of registration and versatility. However, analyzing the large datasets generated by bioacoustics research can be challenging. The ohun R package aims to aid in automated sound event detection and evaluation, providing tools to optimize detection routines and compare performance among different approaches.
METHODS IN ECOLOGY AND EVOLUTION
(2023)
Article
Ecology
Julius Juodakis, Stephen Marsland
Summary: Sound recordings play an important role in ecological studies, including wildlife monitoring. However, current methods for automatic detection of sound events are impacted by wind, causing transient intensity peaks. In this study, researchers propose a method that estimates transient noise level using short-term spectrum models and combines it with log-spectral subtraction to stabilize background level. The proposed method improves denoising capabilities and detection accuracy, making it particularly attractive for rare species detection and soundscape analysis.
METHODS IN ECOLOGY AND EVOLUTION
(2022)
Article
Veterinary Sciences
Carlos D. Perez-Brigido, Dora Romero-Salas, Violeta T. Pardio-Sedas, Anabel Cruz-Romero, Milagros Gonzalez-Hernandez, Joyce Mara Delpra-Cachulo, Mariano Ascencio, Monica Florin-Christensen, Leonhard Schnittger, Anabel E. Rodriguez
Summary: The black-handed spider monkey is a platyrrhine primate distributed in southern Mexico, Central America, and part of South America, with two subspecies threatened with extinction in Mexico. The study demonstrated the presence of Leishmania sp. in spider monkeys from the Tuxtlas Biosphere Reserve, Veracruz, Mexico, with a high percentage of sampled animals showing fragment sizes compatible with Leishmania spp. This is the first report suggesting the presence of Leishmania spp. in the specific subpopulations of spider monkeys in Veracruz, Mexico.
VETERINARY RESEARCH COMMUNICATIONS
(2022)
Article
Psychology, Biological
Tiffany Claire Bosshard, Laura Teresa Hernandez Salazar, Matthias Laska
Summary: We assessed the numerical cognition of a group of captive spider monkeys and found that they performed well in both quantity discrimination and discrete number discrimination tasks. The spider monkeys performed at the same level as chimpanzees, bonobos, and orangutans, indicating that ecological and social traits may contribute to between-species differences in cognitive abilities.
BEHAVIOURAL PROCESSES
(2022)
Article
Multidisciplinary Sciences
Carlos Eduardo Ramirez-Torres, Fabiola Carolina Espinosa-Gomez, Jorge E. Morales-Mavil, J. Eduardo Reynoso-Cruz, Matthias Laska, Laura Teresa Hernandez-Salazar
Summary: Variations in salivary physicochemical characteristics can protect the oral cavity from potentially toxic compounds consumed in food.
Review
Biology
Craig A. Radford, Jenni A. Stanley
Summary: The sensory systems of aquatic crustaceans have adapted to various aquatic environments. Sound production plays a significant role in their life-history strategies, but there are still gaps in our understanding of their sound reception abilities. Crustaceans have three main sensory receptors that are sensitive to particle motion in the sound field. They employ a variety of sound-producing mechanisms for social behaviors, and there may be another sound transmission channel - substrate-borne vibrations - that plays a role in their hearing systems. Further research is needed to fill the gaps in our understanding of how crustaceans hear and produce sound.
JOURNAL OF EXPERIMENTAL BIOLOGY
(2023)
Article
Psychology, Biological
Sofia Pereira, Laura Teresa Hernandez Salazar, Matthias Laska
Summary: The study found significant differences in facial responses of black-handed spider monkeys to different taste substances, with pleasant responses to sucrose and unpleasant responses to caffeine and citric acid. The monkeys showed similar facial responses to the artificial sweetener aspartame as to water, suggesting they may not be able to detect its sweetness. Overall, the study supports the idea of evolutionarily conserved taste-induced facial responses across non-hominoid primates and humans.
BEHAVIOURAL PROCESSES
(2021)
Article
Environmental Sciences
Christopher R. Biggs, Brad E. Erisman
Summary: The study examined the transmission loss of spotted seatrout vocalizations in different habitats within an estuary, finding that sound is most quickly attenuated in channel edge habitat and least attenuated in mud habitat. Factors such as distance, water depth, temperature, and salinity all impact the rate of transmission loss. The detection range of passive acoustic sampling varied between 44 and 281 meters, indicating a spatial precision of <281 meters within the estuary for detecting vocalizing fish.
ESTUARIES AND COASTS
(2021)
Article
Engineering, Marine
Maria Ceraulo, Maria Paz Sal Moyano, Maria Cielo Bazterrica, Fernando Jose Hidalgo, Solana Snitman, Elena Papale, Giuseppa Buscaino, Maria Andrea Gavio
Summary: The study investigated the sound production of Cyrtograpsus angulatus, a key intertidal decapod in the Southwestern Atlantic Ocean. Male crabs were found to produce high-intensity impulsive sounds during contact and still behavior, displaying body movements involving chelae, legs, and maxillae, with same-size males showing more intense interactions.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2022)
Article
Agriculture, Dairy & Animal Science
Carolina Soben, Miquel Llorente, Paula Villariezo, Katja Liebal, Federica Amici
Summary: Research showed that social behavior differences between sexes in primates emerge during the first six years of life, with mothers playing an important role in this process. Observations of spider monkeys revealed no sex difference in body contact and grooming, but males showed a higher propensity for play starting at around age two. Additionally, maternal investment had varying effects on social integration for male and female immatures, increasing the likelihood of play for sons but not for daughters.
Article
Zoology
Carolina Soben, Miquel Llorente, Paula Villariezo, Katja Liebal, Federica Amici
Summary: In a wild group of male philopatric spider monkeys, we studied maternal investment in offspring. Maternal investment showed a sex bias, and this relationship was influenced by maternal age and social integration.
INTERNATIONAL JOURNAL OF PRIMATOLOGY
(2023)
Article
Computer Science, Artificial Intelligence
Fabio Felix Dias, Moacir Antonelli Ponti, Rosane Minghim
Summary: In the field of soundscape ecology, the combination of deep neural networks for classification and quantification tasks shows advantages in dealing with species identification, particularly in terms of generalization and class recall. Furthermore, results suggest that a more compact network may outperform a deeper one in fine-grained scenarios of birds and anurans species.
NEURAL COMPUTING & APPLICATIONS
(2022)
Article
Ecology
Ines Nolasco, Shubhr Singh, Veronica Morfi, Vincent Lostanlen, Ariana Strandburg-Peshkin, Ester Vidana-Vila, Lisa Gill, Hanna Pamula, Helen Whitehead, Ivan Kiskin, Frants H. Jensen, Joe Morford, Michael G. Emmerson, Elisabetta Versace, Emily Grout, Haohe Liu, Burooj Ghani, Dan Stowell
Summary: Automatic detection and classification of animal sounds have various applications in biodiversity monitoring and animal behavior. Recent advancements in deep learning have led to strong results in automatic classification. However, bioacoustics encompasses a wide range of small-scale tasks with diverse data characteristics and limited labeled training data. This work introduces a few-shot learning approach for bioacoustic sound event detection and presents open datasets and a public contest to evaluate the performance. The analysis shows that prototypical networks and high time resolution capabilities are effective in this challenge, and few-shot sound event detection outperforms traditional signal processing methods in fine-grained bioacoustic recognition tasks.
ECOLOGICAL INFORMATICS
(2023)
Article
Ornithology
Ronald A. Fernandez Gomez, Jorge E. Morales-Mavil, J. Roberto Sosa-Lopez
JOURNAL OF FIELD ORNITHOLOGY
(2020)
Article
Ornithology
Wiliam Ku-Peralta, Adolfo G. Navarro-Siguenza, Luis Sandoval, J. Roberto Sosa-Lopez
Article
Ornithology
Alana D. Demko, J. Roberto Sosa-Lopez, Richard K. Simpson, Stephanie M. Doucet, Daniel J. Mennill
Article
Ornithology
Oscar Humberto Marin-Gomez, Michelle Garcia-Arroyo, Camilo E. Sanchez-Sarria, J. Roberto Sosa-Lopez, Diego Santiago-Alarcon, Ian MacGregor-Fors
Article
Ornithology
Cecilia Odette Carral-Murrieta, Michelle Garcia-Arroyo, Oscar H. Marin-Gomez, J. Roberto Sosa-Lopez, Ian MacGregor-Fors
Article
Environmental Sciences
Ian MacGregor-Fors, Juan F. Escobar-Ibanez, Jorge E. Schondube, Iriana Zuria, Ruben Ortega-Alvarez, J. Roberto Sosa-Lopez, Irene Ruvalcaba-Ortega, R. Carlos Almazan-Nunez, Moises Arellano-Delgado, Stefan L. Arriaga-Weiss, Alejandra Calvo, Leonardo Chapa-Vargas, Perla X. Silvestre Lara, Juan H. Garcia-Chavez, Osvel Hinojosa, Juan M. Koller-Gonzalez, Carlos Lara, Samuel Lopez de Aquino, Dulce Lopez-Santillan, Elisa Maya-Elizarraras, Juan P. Medina, Jose de Jesus Moreno Navarro, Luis E. Murillo Garcia, Landy Orozco, Ruben Pineda-Lopez, Erick R. Rodriguez-Ruiz, Jose R. Tinajero Hernandez, Ligia B. Torres Aban, Jorge H. Vega-Rivera
Summary: This study focused on urban bird diversity in Mexico, with a special emphasis on the role of urban greenspaces and heavily-built sites. Urban greenspaces were found to have higher species richness compared to heavily-built sites, and there were clear differences in the functional groups of birds in these two urban scenarios. The relationships between urban bird diversity and cities' biogeographic region, size, elevation, and annual rainfall were also explored.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Behavioral Sciences
Ronald A. Fernandez-Gomez, Jorge E. Morales-Mavil, Laura T. Hernandez-Salazar, J. Roberto Sosa-Lopez
Summary: This study assessed the behavioural responses of olive sparrows to geographical variation in songs, revealing an asymmetrical response pattern and a correlation between response intensity and acoustic similarity. This suggests that males from different populations may use a similar mechanism to recognize signals and that song divergence could act as a premating barrier for some populations.
Article
Multidisciplinary Sciences
Eithne Kavanagh, Sally E. Street, Felix O. Angwela, Thore J. Bergman, Maryjka B. Blaszczyk, Laura M. Bolt, Margarita Briseno-Jaramillo, Michelle Brown, Chloe Chen-Kraus, Zanna Clay, Camille Coye, Melissa Emery Thompson, Alejandro Estrada, Claudia Fichtel, Barbara Fruth, Marco Gamba, Cristina Giacoma, Kirsty E. Graham, Samantha Green, Cyril C. Grueter, Shreejata Gupta, Morgan L. Gustison, Lindsey Hagberg, Daniela Hedwig, Katharine M. Jack, Peter M. Kappeler, Gillian King-Bailey, Barbora Kubenova, Alban Lemasson, David MacGregor Inglis, Zarin Machanda, Andrew MacIntosh, Bonaventura Majolo, Sophie Marshall, Stephanie Mercier, Jerome Micheletta, Martin Muller, Hugh Notman, Karim Ouattara, Julia Ostner, Mary S. M. Pavelka, Louise R. Peckre, Megan Petersdorf, Fredy Quintero, Gabriel Ramos-Fernandez, Martha M. Robbins, Roberta Salmi, Isaac Schamberg, Oliver Schuelke, Stuart Semple, Joan B. Silk, J. Roberto Sosa-Lopez, Valeria Torti, Daria Valente, Raffaella Ventura, Erica van de Waal, Anna H. Weyher, Claudia Wilke, Richard Wrangham, Christopher Young, Anna Zanoli, Klaus Zuberbuehler, Adriano R. Lameira, Katie Slocombe
Summary: This study found that dominant individuals in non-human primate species who were more tolerant tend to vocalize at a higher rate, while despotic species have a larger repertoire of hierarchy-related vocalizations. This suggests that primate signals evolve in relation to the nature of interactions that characterize individuals' social relationships.
ROYAL SOCIETY OPEN SCIENCE
(2021)
Article
Ornithology
Marcos Quiroz-Oliva, J. Roberto Sosa-Lopez
Summary: By studying the vocal behavior of Sclater's Wrens, it was found that males and females have sexually dimorphic songs, with females having only one song type while males possess multiple song types. Duet formation in this species involves both sexes combining their songs. Additionally, the study revealed that the number of songs shared between males decreases with increasing geographical distance, indicating a correlation between song learning and territorial proximity.
JOURNAL OF ORNITHOLOGY
(2022)
Article
Ornithology
Jose de J. Zazueta-Algara, J. Roberto Sosa-Lopez, Maria del Coro Arizmendi, Adolfo G. Navarro-Siguenza
Summary: The geographic variation study of Acorn Woodpecker vocalizations revealed vocal divergence that corresponds with genetic and morphological differences, with two specific regions promoting the greatest divergence. The vocal groups identified also align with previously described morphological variation in bill sizes.
WILSON JOURNAL OF ORNITHOLOGY
(2022)
Article
Biology
Margarita Briseno-Jaramillo, Jose Roberto Sosa-Lopez, Gabriel Ramos-Fernandez, Alban Lemasson
Summary: The 'social complexity hypothesis' suggests that complex social systems require complex communicative systems. This study found that contact call rates in spider monkeys vary with caller and audience characteristics, as well as with fission and fusion events. A flexible use of contact calls helps individuals identify themselves and reduces uncertainty about subgroup composition.
PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
(2022)
Article
Ornithology
Estefania Meza-Montes, Ronald A. Fernandez-Gomez, Alexander Llanes-Quevedo, Adolfo G. Navarro-Siguenza, Diego Santiago-Alarcon, J. Roberto Sosa-Lopez
Summary: In this study, we explored the relationship between haemosporidian infection, parasite load, heterophil:lymphocyte ratio, body condition, and vocal behavior in Rufous-naped Wrens. Our results showed no evidence of an association between vocal behavior and infection status, heterophil:lymphocyte ratio, or body condition. However, we found that infection status was associated with a higher song rate and there was a strong positive correlation between infection status and parasite load in males and females belonging to the same reproductive pair.
Article
Biology
Violeta Monserrath Andrade-Gonzalez, Hernan Vazquez-Miranda, Claudia Patricia Ornelas-Garcia, Jose Roberto Sosa-Lopez
Summary: In this study, the researchers examined the variation in morphology, plumage color, and acoustic characteristics of cactus wrens. They found that these traits varied across different geographical regions, supporting the existence of two genetic lineages. The results also showed that color and morphology traits were consistent with Gloger's and Allen's rules, but did not support Bergmann's rule.
PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
(2023)
