Julio Cesar Bicca‐marque
Biographic Data
| ID | 106543 |
|---|---|
| NAME | Julio Cesar Bicca‐marque |
| GIVEN NAMES | Julio Cesar |
| FAMILY NAME | Bicca‐marque |
| SIGNATURE | MARQUE J C B |
| AFFILIATIONS | Pontifícia Universidade Católica do Rio Grande do Sul |
| ORCID | 0000-0002-5400-845X |
| VERIFIED | Yes |
| TOTAL WORKS | 51 |
| TOTAL CITATIONS | 56 |
| AUTHOR COUNT | 51 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 1990 |
| LATEST PUBLICATION YEAR | 2026 |
| H-INDEX | 5 |
Behavioral Flexibility and the Conservation Value of Howler Monkey Populations in Small Habitat Patches
Species occupying small habitat patches and exhibiting behavioral and ecological flexibility are more likely to persist in fragmented landscapes. However, when isolated populations are not self‐sustaining in the long term, translocation may be required, making an understanding of their behavior critical. Howler monkeys ( Alouatta spp.) show high tolerance to habitat restriction, which has been linked to a highly folivorous diet and the exploitati…
Minutes of the Council Meetings and the General Assembly at the XXXth Congress of the International Primatological Society Antananarivo, Madagascar July 20-26, 2025
III. Razafindramanana, Chair of the Local Organizing Committee of the 2025 IPS, welcomed participants and thanked IPS officers, volunteers, donors, and partners for their support in organizing the 30th IPS Congress.IV.Mulholland, VP for Scientific Programming and Chair of the Scientific Program, reported that the scientific program was fully organized and that all systems were in place for live streaming.She noted that the congress included more …
Urinary health indicators in folivorous-frugivorous primates with and without food supplementation
Supplementation With Human Foods Affects the Gut Microbiota of Wild Howler Monkeys
Wild primates face a wide range of anthropogenic influences globally that impact their health, fitness, and survival. One area of potential impact that has been particularly understudied is the supplementation of wild primate diets with human foods. Although the consumption of human foods represents a substantial dietary change for wild primates, knowledge of how it impacts their physiology and behavior is limited. Here we explore how human food …
Promoting Equitable Research Partnerships in Primatology
News and Perspectives: Words matter in primatology
Postings on social media on Twitter (now X), BioAnthropology News (Facebook), and other venues, as well as recent publications in prominent journals, show that primatologists, ecologists, and other researchers are questioning the terms “Old World” and “New World” due to their colonial implications and history. The terms are offensive if they result in erasing Indigenous voices and history, ignoring the fact that Indigenous peoples were in the Ame…
Opportunistic meat-eating by urban folivorous-frugivorous monkeys
An urgent call‐to‐action to protect the nonhuman primates and Indigenous Peoples of the Brazilian Amazon
Primates are facing an impending extinction crisis. Here, we examine the set of conservation challenges faced by the 100 primate species that inhabit the Brazilian Amazon, the largest remaining area of primary tropical rainforest in the world. The vast majority (86%) of Brazil's Amazonian primate species have declining populations. Primate population decline in Amazonia has been driven principally by deforestation related to the production of for…
Minutes of the Council Meetings and the General Assembly at the XXIXth Congress of the International Primatological Society Kuching, Malaysia August 19–25, 2023
Little things, big consequences
Minutes of the Council Meetings and the General Assembly at the XXVIIIth Congress of the International Primatological Society Quito, Ecuador January 9–15, 2022
The Risks of Yellow Fever to Asian Primates
Dramatic decline in a titi monkey population after the 2016–2018 sylvatic yellow fever outbreak in Brazil
Platyrrhini are highly vulnerable to the yellow fever (YF) virus. From 2016 to 2018, the Atlantic Forest of southeast Brazil faced its worst sylvatic YF outbreak in about a century, thought to have killed thousands of primates. It is essential to assess the impact of this epidemic on threatened primate assemblages to design effective conservation strategies. In this study, we assessed the impact of the 2016-2018 YF outbreak on a geographically is…
Degree of Frugivory Predicts Rates of Food-Related Agonism and Intragroup Proximity in Wild Gray Woolly Monkeys (Lagothrix lagotricha cana)
Fermented food consumption in wild nonhuman primates and its ecological drivers
OBJECTIVES: Although fermented food use is ubiquitous in humans, the ecological and evolutionary factors contributing to its emergence are unclear. Here we investigated the ecological contexts surrounding the consumption of fruits in the late stages of fermentation by wild primates to provide insight into its adaptive function. We hypothesized that climate, socioecological traits, and habitat patch size would influence the occurrence of this beha…
Successful adoption of an orphan infant in a wild group of brown howler monkeys
Howler monkey tolerance to habitat shrinking: Lifetime warranty or death sentence
Habitat loss and fragmentation are major threats to the conservation of nonhuman primates. Given that species differ in their responses to fragmented landscapes, identifying the factors that enable them to cope with altered environments or that cause their extirpation is critical to design conservation management strategies. Howler monkeys ( Alouatta spp.) are good models for studying the strategies of tolerant arboreal taxa and how they cope wit…
Predicting Yellow Fever Through Species Distribution Modeling of Virus, Vector, and Monkeys
Supplemented howler monkeys eat less wild fruits, but do not change their activity budgets
Research on the influence of food supplementation on primate behavior has focused on terrestrial and semiterrestrial species. Its effects on highly arboreal species are poorly known. We assessed the influence of food supplementation on the feeding behavior and activity budget of four adult female and two adult male brown howler monkeys ( Alouatta guariba clamitans ) belonging to two groups (JA and RO) that inhabited periurban forest fragments in …
Balancing contest competition, scramble competition, and social tolerance at feeding sites in wild common marmosets ( Callithrix jacchus )
Models of primate sociality focus on the costs and benefits of group living and how factors such as rank, feeding competition, alliance formation, and cooperative behavior shape within‐group social relationships. We conducted a series of controlled field experiments designed to investigate how resource distribution (one or three of four reward platforms) and amount of food on a reward platform affected foraging strategies and individual feeding s…
Trait variation and trait stability in common marmosets ( Callithrix jacchus) inhabiting ecologically distinct habitats in northeastern Brazil
Understanding the set of factors that promote and constrain a species’ ability to exploit ecologically distinct habitats is central for addressing questions of intraspecific variability in behavior and morphology. In this study, we compared newly collected data with published data on body measurements, group size and composition, daily path length, home range, and reproductive output in wild common marmosets naturally inhabiting two contrasting e…
Terrestrial Behavior in Titi Monkeys (Callicebus, Cheracebus, and Plecturocebus): Potential Correlates, Patterns, and Differences between Genera
Hybridization Between Neotropical Primates with Contrasting Sexual Dichromatism
Minutes of the Council Meetings and the General Assembly at the XXVIIth Congress of the International Primatological Society Nairobi, Kenya August 19–25, 2018
Fruit availability drives the distribution of a folivorous–frugivorous primate within a large forest remnant
Understanding the ecological factors that influence the presence, abundance, and distribution of species within their habitats is critical for ensuring their long-term conservation. In the case of primary consumers, such as most primates, the availability and richness of plant foods are considered key drivers of population density at these variables influence the spatial distribution of social units within a finer, habitat patch level scale. We t…
Age-Sex Analysis of Activity Budget, Diet, and Positional Behavior in Alouatta caraya in an Orchard Forest
Hand specialization, sympatry, and mixed-species associations in callitrichines
Terrestrial Behavior in Titi Monkeys (Callicebus, Cheracebus, and Plecturocebus): Potential Correlates, Patterns, and Differences between Genera
Hybridization Between Neotropical Primates with Contrasting Sexual Dichromatism
Crop Feeding by Brown Howlers (Alouatta guariba clamitans) in Forest Fragments: The Conservation Value of Cultivated Species
Emigration in a black howling monkey group
Fermented food consumption in wild nonhuman primates and its ecological drivers
OBJECTIVES: Although fermented food use is ubiquitous in humans, the ecological and evolutionary factors contributing to its emergence are unclear. Here we investigated the ecological contexts surrounding the consumption of fruits in the late stages of fermentation by wild primates to provide insight into its adaptive function. We hypothesized that climate, socioecological traits, and habitat patch size would influence the occurrence of this beha…
Habitat Impoverishment and Egg Predation by Alouatta caraya
Use of Social and Ecological Information in Tamarin Foraging Decisions
The Risks of Yellow Fever to Asian Primates
Degree of Frugivory Predicts Rates of Food-Related Agonism and Intragroup Proximity in Wild Gray Woolly Monkeys (Lagothrix lagotricha cana)
A new southern limit for the distribution ofAlouatta caraya in Rio Grande do Sul State, Brazil
A new southern limit for the distribution ofAlouatta caraya in Rio Grande do Sul State, Brazil
Emigration in a black howling monkey group
Behavioral thermoregulation in a sexually and developmentally dichromatic neotropical primate, the black-and-gold howling monkey (Alouatta caraya)
Behavioral thermoregulation in primates may provide a means for the conservation of heat during periods of low ambient temperature and/or food shortage as well as a way to dissipate heat under hot conditions. This article focuses on behavioral thermoregulation in a sexually dichromatic primate, the black-and-gold howling monkey (Alouatta caraya). Two models have been proposed to explain the evolution of sexual dichromatism in this species: thermo…
Hand specialization, sympatry, and mixed-species associations in callitrichines
How do Howler Monkeys Cope with Habitat Fragmentation?
Experimental field study of the relative costs and benefits to wild tamarins ( saguinus imperator and S. fuscicollis ) of exploiting contestable food patches as single‐ and mixed‐species troops
Several species of tamarins form stable mixed‐species troops in which groups of each species feed, forage, rest, and travel together during much of the year. Although the precise set of factors that facilitate this ecological relationship remains unclear, predator detection and foraging benefits are presumed to play a critical role in maintaining troop stability. In this work we present data from an experimental field study designed to examine ho…
Use of spatial, visual, and olfactory information during foraging in wild nocturnal and diurnal anthropoids: A field experiment comparing Aotus , Callicebus , and Saguinus
Early in their evolution, the ancestors of anthropoid primates radiated from a nocturnal to a diurnal niche. Foraging during the night differs from foraging during the day in terms of the availability of light and color cues, and in the movement of odor molecules through the canopy. In this study, we compared the ability of nocturnal and diurnal New World monkeys to use perceptual cues (i.e., the sight or smell of food) and spatial information (p…
Birth seasonality ofCebus apella (Platyrrhini, Cebidae) in Brazilian zoos along a latitudinal gradient
Birth seasonality in wild neotropical primates has been suggested to increase with latitude as a response to a stronger divergence in high-quality food availability across the year, and a higher between-year predictability at higher latitudes related to temporal differences in photoperiod. In captivity, however, monkeys are fed foods of similar quality throughout the year, and this consistency of diet should have a releasing effect on the need fo…
Use of Social and Ecological Information in Tamarin Foraging Decisions
Field and laboratory methods in primatology: A practical guide
Survey of Alouatta caraya, the black-and-gold howler monkey, and Alouatta guariba clamitans, the brown howler monkey, in a contact zone, State of Rio Grande do Sul, Brazil: Evidence for hybridization
Abnormal Pelage Color in an Isolated Population of Alouatta guariba clamitans Cabrera, 1940 in South Brazil
Age-Sex Analysis of Activity Budget, Diet, and Positional Behavior in Alouatta caraya in an Orchard Forest
Habitat Impoverishment and Egg Predation by Alouatta caraya
Hybridization between Alouatta caraya and Alouatta guariba clamitans in captivity
Capuchin monkeys ( Cebus nigritus ) use spatial and visual information during within‐patch foraging
Foraging in large‐scale (navigation between patches), small‐scale (choice of within‐patch feeding sites), and micro‐scale (close inspection of food items) space presents variable cognitive challenges. The reliability and usefulness of spatial memory and perceptual cues during food search in a forest environment vary among these spatial scales. This research applied an experimental field design to test the ability of a free‐ranging group composed …
Experimental field study of problem‐solving using tools in free‐ranging capuchins ( Sapajus nigritus , formerly Cebus nigritus )
Some populations of capuchins are reported to use tools to solve foraging problems in the wild. In most cases, this involves the act of pounding and digging. The use of probing tools by wild capuchins is considerably less common. Here we report on the results of an experimental field study conducted in southern Brazil designed to examine the ability of wild black‐horned capuchins ( Sapajus nigritus ) to use a wooden dowel as a lever or a probe to…
Predation of Alouatta puruensis by Boa constrictor
Dietary Flexibility of the Brown Howler Monkey Throughout Its Geographic Distribution
Habitat loss and fragmentation constrain the survival of most forest‐living mammals, particularly strictly arboreal primates. Because fragment size directly affects food availability, primate survival in small fragments may depend on dietary flexibility. Here, we review the literature on the diet of 29 wild groups of A louatta guariba clamitans inhabiting forest fragments in B razil and A rgentina. We identify general feeding patterns and analyze…
Vocal behavior of black‐fronted titi monkeys ( Callicebus nigrifrons ): Acoustic properties and behavioral contexts of loud calls
Loud calls can be heard over long distances due to their high amplitude and low frequency. These calls are commonly used for both within- and between-group communication in many bird and primate species. In the Neotropics, mated pairs of socially monogamous titi monkeys (genus Callicebus) emit conspicuous, coordinated loud calls. These vocalizations appear to play a role in territorial defense, a hypothesis derived from studies of only three of t…
Parturition and potential infanticide in free-ranging Alouatta guariba clamitans
Playback responses of socially monogamous black‐fronted titi monkeys to simulated solitary and paired intruders
Many birds and primates use loud vocalizations to mediate agonistic interactions with conspecifics, either as solos by males or females, or as coordinated duets. The extensive variation in duet complexity, the contribution of each sex, and the context in which duets are produced suggest that duets may serve several functions, including territory and mate defense. Titi monkeys (Callicebus spp.) are believed to defend their home range via solo loud…
Ranging behavior drives parasite richness: A more parsimonious hypothesis
Parasitism is a ubiquitous interspecific interaction that may play an important role in the evolution of hosts and parasites, molding many aspects of their behavior and ecology. Detecting behavioral changes of hosts infected with parasites is not a straightforward task. Extrapolating from individual-level responses to group-level decision-making is still a much more complex challenge. The ranging behavior of hosts that live in social groups is a …
Development of Primatology in Habitat Countries: A View from Brazil
Biology (47 works) · Primate Behavior and Ecology (45 works) · Ecology (29 works) · Animal ecology (27 works) · Zoology (24 works) · Animal Behavior and Reproduction (21 works) · Geography (16 works) · Habitat (16 works) · Animal Vocal Communication and Behavior (15 works) · Wildlife Ecology and Conservation (13 works)