Ricardo Sampaio

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• PhD in Comparative Biology
• Environmental Analyst at Instituto Chico Mendes de Conservação da Biodiversidade

The purported sustainability of sustainable-use reserves (SURs) has been questioned in recent decades due to anthropogenic disturbance, including widespread game hunting. A fuller understanding of the drivers of harvest- induced game population changes in SURs is needed to inform this debate. We deployed 720 camera traps around 100 local communitie...

A considerable proportion of tropical protected areas are Sustainable Use Reserves (SURs), where socio-biodiversity protection and sustainable resource extraction are the main goals. Subsistence hunting is the most widespread form of subcanopy forest resource extraction, and often depletes game populations within SURs, but the degree to which these...

Both forest fragmentation and overhunting have profound effects on the structure of large-vertebrate assemblages in neotropical forests. However, the long-term value of habitat fragments for forest mammals remains poorly understood and few regional scale studies have replicated sampling across spatially independent landscapes. Here, we assess the s...

Cruz Lima’s saddle-back tamarin Saguinus fuscicollis cruzlimai Hershkovitz, 1966, was described from a painting by Eládio da Cruz Lima in his book Mammals of Amazonia, Vol. 1, Primates (1945). The painting was of four saddle-back tamarins from the upper Rio Purus, one of them distinct and the inspiration for Hershkovitz to describe it as a new subs...

Protected areas, including Indigenous Lands, play a critical role in protecting natural habitats and wildlife. The Amazon has a remarkable network of protected areas and is home to the largest population of the Neotropics' largest felid, the jaguar (Panthera onca). Yet, knowledge of the population status of jaguars across the biome is scarce. In th...

In 2020, the Brazilian Pantanal experienced unprecedented wildfires that burned approximately 40,000 km² and resulted in the death of an estimated 17 million vertebrates. This catastrophic event, characterized by an extreme fire behavior and large extension facilitated by a combination of accumulated organic matter and a prolonged drought, has high...

Although considered an evolutionary force responsible for shaping ecosystems and biodiversity, fires’ natural cycle is being altered by human activities, increasing the odds of destructive megafire events. Here, we show that forest type modulates the responses of terrestrial mammals, from species to assemblage level, to a catastrophic megafire in t...

Human-wildlife coexistence as a concept and management objective has received increasing attention from researchers and decision makers. The coexistence approach will benefit from the recognition that, at broader scales, human-wildlife interactions (HWI) are best understood and managed collabo-ratively and as complex systems, that is, dynamic, non-...

The current biodiversity crisis has generated a growing demand for information on the status and trends of biodiversity, especially in mega diverse regions such as the tropics, where comprehensive data is lacking. In view of this, the Brazilian government developed the Brazilian in situ monitoring program of Federal Protected Areas – Programa Monit...

The genus Saguinus comprises three principal clades that diverged in the Middle to Late Miocene. Their taxa are ecologically differentiated and allopatrically distributed. These clades were recently recognized as different genera, Saguinus, Tamarinus and Oedipomidas. In Tamarinus, the phylogenetic relationships among species/subspecies are poorly u...

The Brazilian Biodiversity Monitoring Program (Monitora Program) is a long-term largescale program aimed at monitoring the state of biodiversity and associated ecosystem services in the protected areas (PAs) managed by Instituto Chico Mendes de Conservação da Biodiversidade (ICMBio). Encouraging qualified social participation is one of Monitora Pro...

Increasing knowledge of species occurrence and assemblage composition is crucial to uncover the impacts of human activities on biodiversity. Here we investigate the effects of certified selective logging on assemblages of medium-and large-sized mammals in central Suriname. Using camera traps set in logged and unlogged parts of two logging concessio...

The helminth Echinococcus vogeliRausch & Bernstein, 1972 is a causative agent of Neotropical Echinococcosis, a chronic zoonotic disease which is endemic to the Neotropical region. This parasite is transmitted from bush dogs (Speothos venaticus) to their prey, which include lowland pacas (Cuniculus paca) and agoutis (Dasyprocta spp.). In Brazil, mos...

Fifty years of deforestation in the Arc of Deforestation have put at risk species survival, ecosystem services and the stability of biogeochemical cycles in Amazonia, with global repercussions. In response, we need to understand the diversity, distribution and abundance of flagship species groups, such as primates, which can serve as umbrella speci...

The Amazon forest has the highest biodiversity on Earth. However, information on Amazonian vertebrate diversity is still deficient and scattered across the published, peer‐reviewed, and gray literature and in unpublished raw data. Camera traps are an effective non‐invasive method of surveying vertebrates, applicable to different scales of time and...

The Amazon forest has the highest biodiversity on Earth. However, information on Amazonian vertebrate diversity is still deficient and scattered across the published, peer-reviewed, and gray literature and in unpublished raw data. Camera traps are an effective non-invasive method of surveying vertebrates, applicable to different scales of time and...

Bald uakaris, genus Cacajao, are Amazonian primates currently classified as one species and four subspecies based on the patterns of pelage coloration. In this study, we test if their current taxonomy is represented by the phylogenetic relationship of the main lineages retrieved from molecular data. We included, for the first time, all bald uakari...

An understanding of a species' geographic distribution is essential to assess, plan, and develop strategies for its conservation. The geographic distribution of the bald uakari, Cacajao calvus, and its component subspecies has been poorly investigated, with disjunct distributions being reported in Brazil and Peru. In this study, we reveal new recor...

Biological invasion is one of the main threats to native biodiversity. For a species to become invasive, it must be voluntarily or involuntarily introduced by humans into a nonnative habitat. Mammals were among first taxa to be introduced worldwide for game, meat, and labor, yet the number of species introduced in the Neotropics remains unknown. In...

Mammalian carnivores are considered a key group in maintaining ecological health and can indicate potential ecological integrity in landscapes where they occur. Carnivores also hold high conservation value and their habitat requirements can guide management and conservation plans. The order Carnivora has 84 species from 8 families in the Neotropica...

The persistent high deforestation rate and fragmentation of the Amazon forests are the main threats to their biodiversity. To anticipate and mitigate these threats, it is important to understand and predict how species respond to the rapidly changing landscape. The short-eared dog Atelocynus microtis is the only Amazon-endemic canid and one of the...

We investigated short-eared dog habitat associations on two spatial scales. First, we used the largest record database ever compiled for short-eared dogs in combination with species distribution models to map species habitat suitability, estimate its distribution range and predict shifts in species distribution in response to predicted deforestatio...

Xenarthrans—anteaters, sloths, and armadillos—have essential functions for ecosystem maintenance, such as insect control and nutrient cycling, playing key roles as ecosystem engineers. Because of habitat loss and fragmentation, hunting pressure, and conflicts with domestic dogs, these species have been threatened locally, regionally, or even across...

Xenarthrans—anteaters, sloths, and armadillos—have essential functions for ecosystem maintenance, such as insect control and nutrient cycling, playing key roles as ecosystem engineers. Because of habitat loss and fragmentation, hunting pressure, and conflicts with domestic dogs, these species have been threatened locally, regionally, or even across...

Information on the wildlife of the middle and upper reaches of the Purus in Brazil is scarce, and this region is one of the major remaining gaps in our understanding of the distributions and population status of mammals in the Brazilian Amazon. In this paper, we present information on the diversity of mammals of the middle Purus, in the south of Am...

Primates of the Jamanxim National Park: richness, distribution and threats. The Jamanxim National Park (Jamanxim NP), located in the southwest of Pará, was created in 2006 and extends over ca. 858,000 hectares. This Park has an important role for the conservation of the region’s biodiversity, because it provides connectivity between the protected a...

Primates of the Jamanxim National Park: richness, distribution and threats. The Jamanxim National Park (Jamanxim NP), located in the southwest of Pará, was created in 2006 and extends over ca. 858,000 hectares. This Park has an important role for the conservation of the region’s biodiversity, because it provides connectivity between the protected a...

Among the 13 Mico species recognized by the IUCN Red List of Threatened Species, six are listed as “Data Deficient”. The geographic range of most of the Mico species has been estimated from only a few records. We report new localities and the geographic extension of Mico chrysoleucos. In addition, we confirmed the presence of the species in two dis...

-Espécies de primatas são importantes elementos que estruturam a biodiversidade, sendo muito sensíveis a alterações antrópicas e consideradas boas indicadoras do estado de conservação de uma floresta. A região do médio Rio Purus, onde estão localizadas as unidades de conservação (UCs) federais pertencentes ao Núcleo de Gestão Integrada (NGI) de Boc...

Primatas do Parque Nacional do Viruá, Roraima, Brasil RESUMO-Este trabalho apresenta o inventário consolidado de primatas do Parque Nacional do Viruá, Roraima, feito a partir da revisão da literatura e consulta ao material tombado nas coleções do Instituto Nacional de Pesquisas da Amazônia e do Museu Paraense Emílio Goeldi, da realização de expediç...

Twelve generic names have been ascribed to the New World tamarins but all are currently placed in just one: Saguinus Hoffmannsegg, 1807. Based on geographical distributions, morphology, and pelage patterns and coloration, they have been divided into six species groups: (1) nigricollis, (2) mystax, (3) midas, (4) inustus, (5) bicolor and (6) oedipus...

http://www.icmbio.gov.br/portal/biodiversidade/fauna-brasileira/estado-de-conservacao/7234-mamiferos-saguinus-fuscicollis-cruzlimai-sauim-vermelho.html

This is the illustrated identification guide for mammal and bird species of region 2 targeted in the Program for Biodiversity Monitoring of the Brazilian Ministry of Environment and Instituto Chico Mendes da Biodiversidade (ICMBio).

This is the illustrated identification guide for mammal and bird species of region 4 targeted in the Program for Biodiversity Monitoring of the Brazilian Ministry of Environment and Instituto Chico Mendes da Biodiversidade (ICMBio).

This is the illustrated identification guide for mammal and bird species of region 6 targeted in the Program for Biodiversity Monitoring of the Brazilian Ministry of Environment and Instituto Chico Mendes da Biodiversidade (ICMBio).

This is the illustrated identification guide for mammal and bird species of region 5 targeted in the Program for Biodiversity Monitoring of the Brazilian Ministry of Environment and Instituto Chico Mendes da Biodiversidade (ICMBio).

This is the illustrated identification guide for mammal and bird species of region 7 targeted in the Program for Biodiversity Monitoring of the Brazilian Ministry of Environment and Instituto Chico Mendes da Biodiversidade (ICMBio).

This is the ilustrated identification guide for mammal and bird species of region 1 targeted in the Program for Biodiversity Monitoring of the Brazilian Ministry of Environment and Instituto Chico Mendes da Biodiversidade (ICMBio).

This is the illustrated identification guide for mammal and bird species of region 3 targeted in the Program for Biodiversity Monitoring of the Brazilian Ministry of Environment and Instituto Chico Mendes da Biodiversidade (ICMBio).

This video provides the main guidelines for collecting mammals and birds data according to the protocol adopted by the ICMBio/MMA In situ Biodiversity Monitoring Program. Realização: Instituto Chico Mendes de Conservação da Biodiversidade (ICMBio), Ministério do Meio Ambiente (MMA) Apoio: Deutsche Gesellschaft für Internationale Zusammenarbeit Rote...

This study consists of an update on the knowledge of the geographical distribution and population data of the saddle-back tamarin (Saguinus weddelli) in the area lying east of the Madeira River in Rondônia. A literature review were conducted as well as a series of expeditions in the municipalities of Cacoal, Machadinho D'Oeste, Nova Brasilândia D'O...

Justificativa Potus flavus ocorre nas Américas do Norte e Central, em todas as áreas de florestas tropicais entre o México e Panamá, e na América do Sul tem distribuição pan-Amazônica, ocorrendo também na Mata Atlântica brasileira. Não existem dados precisos de densidade populacional para Potos flavus, mas a espécie parece abundante e tem registros...

Embora novos registros indiquem que sua distribuição geográfica seja mais ampla do que se acreditava anteriormente, Bassaricyon alleni é restrita à Amazônia. Parte de sua distribuição se sobrepõe ao sudoeste com o arco do desmatamento, o que indica uma ameaça, por ser esta uma espécie estritamente arborícola. Entretanto, por ser uma espécie extrema...

RESUMO: O zogue-zogue cinza escuro (Callicebus cinerascens; Primates; Pitheciidae) é uma das espécies menos estudadas entre os primatas neotropicais, ocorrendo nos interflúvios Aripuanã-Roosevelt e Tapajós-Juruena, na Amazônia Brasileira. Os limites de sua distribui-ção, especialmente os limites leste e sul, ainda são desconhecidos. Baseado em quat...

Brazil’s only records of Pocock’s olingo (Bassaricyon beddardi) are based on sightings from the northernmost state of Roraima, where the similar kinkajou (Potos flavus) was reported as absent. Our recent field work in the region led to the collection of two specimens and several more observations of kinkajous and a complete lack of evidence of the...

Saddleback tamarins (Saguinus fuscicollis, S. melanoleucus, and S. tripartitus) occur in the upper Amazon, west of the rios Madeira and Mamoré– Guaporé to the Andes. They currently comprise 13 species and subspecies in Bolivia, Brazil, Colombia, Ecuador, and Peru. Here we report on a previously undescribed subspecies of Saguinus fuscicollis from th...