Júlio César Bicca‐Marques
Biographic Data
| ID | 5208801 |
|---|---|
| NAME | Júlio César Bicca‐Marques |
| GIVEN NAMES | Júlio César |
| FAMILY NAME | Bicca‐Marques |
| SIGNATURE | MARQUES J C B |
| AFFILIATIONS | Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre Brazil |
| VERIFIED | No |
| TOTAL WORKS | 12 |
| TOTAL CITATIONS | 0 |
| AUTHOR COUNT | 12 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 2003 |
| LATEST PUBLICATION YEAR | 2026 |
| H-INDEX | 0 |
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 …
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…
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…
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
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…
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…
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…
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 …
Field and laboratory methods in primatology: A practical guide
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…
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…
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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…
Field and laboratory methods in primatology: A practical guide
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 …
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…
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
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…
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…
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 …
Primate Behavior and Ecology (12 works) · Biology (9 works) · Animal Behavior and Reproduction (7 works) · Ecology (7 works) · Geography (5 works) · Zoology (5 works) · Foraging (4 works) · Animal Vocal Communication and Behavior (3 works) · Communication (3 works) · Computer Science (3 works)