Christini B Caselli

Christini B Caselli
Universidade Federal Rural de Pernambuco | UFRPE · Department of Biology

PhD

About

29
Publications
10,792
Reads
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315
Citations
Additional affiliations
July 2013 - November 2015
Universidade Estadual de Santa Cruz
Position
  • PostDoc Position
July 2008 - January 2013
Universidade Estadual de Campinas
Position
  • PhD Student

Publications

Publications (29)
Article
Full-text available
Tropical forests are being lost and modified at an unprecedented rate, with extant biodiversity increasingly restricted to human-modified landscapes. Resulting changes in landscape structure are shaping diversity patterns, with features such as habitat amount, edge density, and matrix quality determining species persistence. We assessed the importa...
Article
Full-text available
For arboreal primates, ground use may increase dispersal opportunities, tolerance to habitat change, access to ground-based resources, and resilience to human disturbances, and so has conservation implications. We collated published and unpublished data from 86 studies across 65 localities to assess titi monkey (Callicebinae) terrestriality. We exa...
Article
Free download link: https://authors.elsevier.com/a/1ZfOn,Q4YJNLg0 The dynamic interaction between animals and plants through frugivory and seed dispersal is one of several ecological processes that modulates tropical biodiversity. Here we evaluated the potential role of a highly-frugivorous Neotropical primate, the black-fronted titi monkey (Calli...
Article
Full-text available
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,...
Article
Full-text available
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 plat...
Article
Primates employ many strategies to deal with the costs of reproduction. While income breeders exploit the food available in their environment during lactation, the most costly phase of reproduction, capital breeders tend to store energy for use in the period. We analyzed the relationship between resource availability and lactation in Callicebus coi...
Chapter
Hunting is an activity historically practiced by human populations in all regions of the planet. Currently, its impact on wild species populations has led to growing concerns about the consequences of the loss of wildlife biodiversity, especially in tropical forests, raising questions about the limits of its sustainability. In this chapter, we indi...
Chapter
Understanding the current threats to biodiversity and how human actions have contributed to it is fundamental. In order to improve our knowledge on this subject, technical expertise is demanded from researchers involved in animal’s diversity studies. Because faunal surveys and monitoring may require a great logistical effort and investments of time...
Article
Full-text available
Long-range vocal communication in socially monogamous titi monkeys is mediated by the production of loud, advertising calls in the form of solos, duets, and choruses. We conducted a power spectral analysis of duets and choruses (simply “duets” hereafter) followed by linear discriminant analysis using three acoustic parameters—dominant frequency of...
Article
In cooperatively breeding species, encounters with intruders may serve multiple functions, ranging from reaffirming group territory ranges to facilitating assessments for additional breeding opportunities. While these distinctive events offer the opportunity to investigate the delicate balance of these social dimensions within animal societies, the...
Article
The costs imposed by predation may result in behavioral adaptations to reduce mortality risk, including the choice and use of sleeping sites. The threat of predation, however, is rarely the sole force shaping sleeping site choice, which is likely to reflect other factors such as foraging needs as well. Here we describe the use of sleeping sites by...
Article
Full-text available
The exploratory behaviour and the ability of capuchin monkeys to use tools allows them to thrive at times and places of limited food and water abundance, such as in semi-arid environments. Here, we report the behaviours employed by individuals belonging to a wild group of bearded capuchin monkeys (Sapajus libidinosus) to access natural water source...
Article
Accurate measures of animal population densities are essential to assess their status, demography, and answer ecological questions. Among several methods proposed to collect abundance data, line transect sampling is used the most. The assumptions required to obtain accurate density estimates through this method, however, are rarely met when studyin...
Article
Full-text available
Grunt-like calls are present in the vocal repertoire of many group-living mammals and seem to facilitate social interactions between lower and higher-ranking members. The white-lipped peccary (Tayassu pecari) lives in stable hierarchical mixed-sex groups and like non-human primates, usually emits grunt-like calls following aggressive interactions,...
Data
Acoustic parameters of white-lipped peccaries’ grunt calls. (XLS)
Article
Full-text available
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 an...
Article
Full-text available
Pitheciids are known for their frugivorous diets, but there has been no broad-scale comparison of fruit genera used by these primates that range across five geographic regions in South America. We compiled 31 fruit lists from data collected from 18 species (three Cacajao, six Callicebus, five Chiropotes, and four Pithecia) at 26 study sites in six...
Article
Full-text available
Detailed descriptions of echolocation calls for most of the Neotropical bat species have been published only recently. Yet, the available descriptions are from bats that emit high-intensity calls. The families of insectivorous bats that emit low-intensity calls, such as Furipteridae, are less frequently recorded by more traditional equipment; thus,...
Article
Full-text available
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 vocalization...
Article
The maintenance of body temperature in endothermic animals imposes considerable metabolic costs that vary with air temperature fluctuations. To minimise these costs, endotherms can adopt certain behaviours to adjust the pattern of heat transfer between their bodies and the environment. In this study, we evaluated whether a small Neotropical primate...
Poster
Air temperature can influence the behavior of endothermic animals in a number of ways. Here we investigated how temperature affected the activity pattern and food consumption of a free-living group of Callicebus nigrifrons. We conducted observations over 12 months (520 observation hours) in a semideciduous tropical forest in southern Brazil. The st...
Article
Full-text available
Most aspects of the ecology and behavior of Callicebus nigrifrons are still unknown. The information available about this species is mainly based on a few studies that also focused on other Callicebus. We examined the feeding behavior and activity pattern of a free-ranging pair of C. nigrifrons between March and November 2007 in an area of semideci...

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Projects (2)
Archived project
No presente projeto objetiva-se desenvolver estudos de cunho etnobiológico e ecológico, visando contribuir para a compreensão da relação das pessoas com o recurso explorado, identifiar os principais fatores sócio-econômicos que influenciam essa relação e como os processos ecológicos se moldam as variações ambientais e bióticas nas florestas modificadas. Além disso, pretende-se evidenciar a forma de ajustes comportamentais de algumas animais as diferentes condições do ambiente, sobretudo, no que se refere a obtenção de alimento.