A5043805916- Primate Behavior and Ecology
- Amphibian and Reptile Biology
- Wildlife Ecology and Conservation
- Bat Biology and Ecology Studies
- Evolution and Paleontology Studies
- Fish biology, ecology, and behavior
- Animal Behavior and Reproduction
- Animal Vocal Communication and Behavior
- Plant and animal studies
- Species Distribution and Climate Change
- Avian ecology and behavior
- Marine animal studies overview
- Ecology and Vegetation Dynamics Studies
- Wildlife-Road Interactions and Conservation
- Environmental and biological studies
- Animal Ecology and Behavior Studies
- Fish Biology and Ecology Studies
- Fish Ecology and Management Studies
- Reproductive tract infections research
- Animal and Plant Science Education
- Adolescent Sexual and Reproductive Health
- Geography and Environmental Studies
- Plant Diversity and Evolution
- Genetic diversity and population structure
- Cervical Cancer and HPV Research
Universidade Federal de Sergipe
2015-2024
Universidade Federal do Pará
1998-2023
ORCID
2023
Universidade Federal da Paraíba
2012-2022
University of Roehampton
2016-2019
Universidade Federal do Maranhão
2013
University College London
1989-2011
Museu Paraense Emílio Goeldi
1990-2009
University of Miami
1999
University of Zurich
1987-1997
Summary Geographic gradients in the species richness of non‐human primates have traditionally been attributed to variation forest productivity (related precipitation levels), although an all‐inclusive, global‐scale analysis has never conducted. We perform a more comprehensive test on role and biomass production propose alternative hypothesis – vertical structure habitats as measured by canopy height determining primate global scale. Considering potential causal relationships among...
Neotropical monkeys of the genera Cacajao, Chiropotes, and Pithecia (Pitheciidae) are considered to be highly arboreal, spending most their time feeding traveling in upper canopy. Until now, use terrestrial substrates has not been analyzed detail this group. Here, we review frequency among pitheciin taxa determine ecological social conditions that might lead such behavior. We collated published unpublished data from 14 three genera. Data were gleaned 53 studies (including five on multiple...
Primates play an important role in ecosystem functioning and offer critical insights into human evolution, biology, behavior, emerging infectious diseases. There are 26 primate species the Atlantic Forests of South America, 19 them endemic. We compiled a dataset 5,472 georeferenced locations native 1 introduced species, as hybrids genera Callithrix Alouatta. The includes 700 communities, 8,121 single occurrences 714 estimates population sizes, covering most natural forest types tropical...
The black-faced uacaris are a poorly known group of platyrrhine monkeys from the Rio Negro basin in northwestern Amazonia. Originally described as two distinct species—Cacajao melanocephalus (Humboldt 1812) and Cacajao ouakary (Spix 1823)—from opposite banks Negro, they were treated single species until end twentieth century, when molecular studies reconfirmed their status true species. One these not only nominated third (northern) species, ayresi Boubli et al. 2008, but also identified C....
Understanding the effects of habitat structure and other environmental variables on density a species can help define its preferences key ecological determinants population parameters. The present study evaluated fragment size, presence predator/competitor, yellow‐breasted capuchin ( Sapajus xanthosternos ), primary productivity, abundance bromeliads, common marmoset Callithrix jacchus ). A total 21 fragments were surveyed within 350‐km long zone coastal Atlantic Forest representing southern...
Land use changes have profound effects on populations of Neotropical primates, and ongoing climate change is expected to aggravate this scenario. The titi monkeys from eastern Brazil (Callicebus personatus group) been particularly affected by process, with four the five species now allocated threatened conservation status categories. Here, we estimate in distribution these caused both land use. We also demographic-based, functional landscape metrics assess magnitude conditions for predicted...
With its long history of colonization, eastern Amazonia has the highest population density in Brazilian and represents typical pattern recent human occupation. Between 1991 1995, we surveyed mammalian fauna at five sites, representing different degrees disturbance. We used line transects (1511 km surveyed) to describe differences diversity abundance each site evaluate effects environmental factors. Twenty-two expected 44 species were recorded during surveys, but no more than 18 any one site,...
Anthropogenic habitat fragmentation is a chronic problem throughout the Brazilian Atlantic Forest biome. In present study, four forest fragments of 60-120 ha were surveyed on rural property in southern Sergipe, where two endangered primate species, Callicebus coimbrai Kobayashi & Langguth, 1999 and Cebus xanthosternos Wied-Neuwied, 1826, are found. Two transects established each fragment, predominant 50 m sectors was assigned to one three categories (mature forest, secondary anthropogenic...
No abstract available
Coimbra-Filho’s titi monkey, Callicebus coimbrai Kobayashi and Langguth, 1999, appears to be endemic the northern Atlantic Forest, south of lower São Francisco River in east state Sergipe north-east Bahia. This study presents 13 new records occurrence species Japaratuba basins eastern Sergipe, extending its range over a distance some 40 km. represents an important advance known total number populations this endangered primate.
Primates were surveyed at two sites in the Xingu-Tocantins interfluvium, eastern Amazonia, where least eight platyrrhines are known to occur, including endemic Chiropotes satanas utahicki, vulnerable extinction. Only three other forms; Alouatta belzebul belzebul, Cebus apella apella, and Saguinus midas niger; recorded both sites. Data on habitat use (forest type strata) collected standard line transect surveys analyzed with relation availability of forest types, as well between species. The...
We genotyped 15 microsatellite loci in order to evaluate the effects of habitat fragmentation, caused by flooding Tucuruí reservoir, on genetic structure Alouatta belzebul eastern Amazonia. The analysis included two populations sampled 1984, representing both margins Tocantins river, and three 18 years later. Minimal differences diversity levels between present-day (Ho = 0.62-0.69 A R 6.07-7.21) pre-flooding 0.60-0.62 6.27-6.77) indicated there was no significant loss variability, possibly...
Data from field studies of three Callithrix species, C. flaviceps, intermedia, and jacchus, are considered in an attempt to characterize group dynamics this genus. The groups detail contrast significantly many behavioral (mating system, ranging behavior, activity patterns) ecological (zoogeography, habitat, diet) variables. Despite this, all highly similar a number characteristics, including relatively large size, high reproductive output, low rates migration. evidence suggests that may...
Schneider, H., Bernardi, J. A. R., da Cunha, D. B., Tagliaro, C. Vallinoto, M., Ferrari, S. F. & Sampaio, I. (2011). A molecular analysis of the evolutionary relationships in Callitrichinae, with emphasis on position dwarf marmoset. — Zoologica Scripta , 41 1–10. The phylogenetic among Neotropical primates subfamily Callitrichinae (marmosets and tamarins) are controversial, especially regard to proposal a new marmoset genus, Callibella based sequences single mitochondrial gene. In this...