Abundance of Callicebus barbarabrownae (Hershkovitz 1990),(Primates: Pitheciidae) and other nonvolant mammals in a fragment of arboreal Caatinga in northeastern Brazil

Freitas, Evellyn Borges de; De-Carvalho, Crizanto Brito; Ferrari, Stephen F.

doi:10.1515/mamm.2011.047

Cited by 14 publications

(14 citation statements)

References 8 publications

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“…While this variation among sites is at least partly related to differences in study procedures and sampling effort, as well as the degree of conservation of the study areas (e.g. Freitas et al, 2011;Bezerra et al, 2014;Dias et al, 2014;Deiciellos, 2016;Dias and Bocchiglieri, 2016), the SANR does appear to host a relatively rich and diversified mammalian fauna in comparison with most other sites. The new record of the rodent O. stramineus extended the distribution of the species westwards, to the western frontier of the state, adjacent to Piauí.…”

Section: Discussionmentioning

confidence: 99%

Diversity of nonvolant mammals in a Caatinga area in northeastern Brazil

Guedes

Dias

Silva

et al. 2017

Neotropical Biology and Conservation

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The Caatinga is an exclusively Brazilian biome that covers approximately 11% of the country and is currently vulnerable to a series of impacts. Its biodiversity is relatively poorly-known, and few data are available on most groups of fauna, hampering the reliable identification of priority areas for conservation. The present study describes the species composition and diversity of the nonvolant mammal community from the Serra das Almas Nature Reserve, an advanced outpost of the Caatinga Biosphere Reserve. Data on small mammals (rodents and marsupials) were collected using live traps. Data on medium -and large -bodied mammals were obtained through observations in the field, photographic records, specimens donated by local residents, and indirect evidences. In addition, camera traps were installed along trails and near water bodies. The analysis of 520 individual records yielded a list containing 29 species of nonvolant mammals. Estimated species richness for the study area was 21±8. The species richness recorded in the SANR represents from one-third to one-half of the nonvolant mammals found in the Caatinga, based on the most recent estimates.Keywords: inventory, camera trap, Serra das Almas, Ceará. ResumoA Caatinga é um bioma exclusivamente brasileiro que cobre aproximadamente 11% do território do país, sendo vulnerável a uma série de impactos. Sua biodiversidade é relativamente pouco conhecida, e poucos dados estão disponíveis para vários grupos zoológicos, dificultando a identificação confiável de áreas prioritárias para a conservação. O presente estudo descreve a composição e diversidade de espécies da comunidade de mamíferos não voadores da Reserva Serra das Almas, um posto avançado da Reserva da Biosfera. Dados sobre pequenos mamíferos (roedores e marsupiais) foram coletados utilizando-se armadilhas. Dados sobre mamíferos de médio e grande porte foram obtidos por meio de observações diretas, registros fotográficos e recebimento de material doado por moradores, além de registro de evidências indiretas, como pegadas e fezes. Além disso, foram utilizadas armadilhas fotográficas instaladas ao longo de trilhas e próximas à corpos d'água. A análise de 520 registros individuais resultou em uma lista de 29 espécies de mamíferos não voadores. A riqueza de espécies estimada para a área de estudo foi 21±8, valor que representa de um terço à metade dos mamíferos encontrados na Caatinga, baseado nas mais recentes estimativas.Palavras-chave: inventário, armadilha fotográfica, Serra das Almas, Ceará.

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Section: Discussionmentioning

confidence: 99%

Diversity of nonvolant mammals in a Caatinga area in northeastern Brazil

Guedes

Dias

Silva

et al. 2017

Neotropical Biology and Conservation

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“…Corsini and Moura (2014) observed only three groups in line transects (relative abundance of 0.19 groups/10 km walked), although the auditory records were higher ( n = 13; 0.85 groups/10 km). Freitas et al (2011) had only two group sightings in 133 km of line transects. The 273 adult individuals estimated to inhabit the 221‐km 2 in our study area contrasts with a minimum population size of 260 adult individuals in 2,636 km 2 , the total occurrence area of the species (Printes et al, 2011).…”

Section: Discussionmentioning

confidence: 99%

“…It is categorized as Critically Endangered (Printes, Alonso, & Jerusalinsky, 2018; Veiga et al, 2008) by the criteria C2a(i): the population size is estimated to number fewer than 250 adult individuals, the population is experiencing a continuous decline, and no subpopulation is estimated to contain more than 50 adult individuals (IUCN, 2012). Two local population assessments based on visual surveys concluded that the species occurs in extremely low abundance (Corsini & Moura, 2014; Freitas, De‐Carvalho, & Ferrari, 2011), and Printes, Rylands, and Bicca‐Marques (2011) estimated a minimum population of 260 individuals in the species' range of 2,636 km 2 .…”

Section: Introductionmentioning

confidence: 99%

Playback point counts and N‐mixture models suggest higher than expected abundance of the critically endangered blond titi monkey in northeastern Brazil

Coelho

Collins

Júnior

et al. 2020

American J Primatol

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Effective management of threatened species requires accurate population size estimation and monitoring. However, reliable population size estimates are lacking for many endangered species. The critically endangered blond titi monkey (Callicebus barbarabrownae) is an endemic primate of the Caatinga biome in Northeastern Brazil.A previous assessment based on presence-only data estimated a minimum population size of 260 mature individuals in 2,636 km 2 , and studies based on visual records suggested very low local relative abundance. However, this cryptic species is known to be difficult to visually detect. We played back recordings of C. barbarabrownae loud calls to count the number of responding groups in 34 sampling sites during 9 consecutive days in a 221-km 2 study area. Repeated group counts at sites were used in N-mixture models, which account for imperfect detection, to estimate the number of groups in relation to dry forest area and distance to villages. We estimated a total of 91 groups in the study area. Considering the mean number of adults per group as three, we estimated a population of 273 adult individuals, resulting in a density of 2.3 individuals/km 2 in the dry forest habitat. Detection probability was four times higher for surveys conducted between sunrise to midmorning than between midmorning to sunset. We also found that C. barbarabrownae abundance increases with increasing dry forest area and increasing distance to the nearest village, indicating the need to promote dry forest restoration in the Caatinga. As our results suggest a larger population of C. barbarabrownae than had been previously estimated for its entire distribution, our results suggest a need for similar assessments in other areas to reliably estimate the total population size. This study demonstrates how playback surveys coupled with N-mixture models can be used to estimate population sizes of acoustically-responsive primates, and thus contribute to more effective conservation management. K E Y W O R D SCaatinga, Callicebus barbarabrownae, dry forest, endangered species, imperfect detection, IUCN Red List

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“…Although few data are available on caatinga populations of Cerdocyon thous, the species has been recorded in arboreal-shrubby caatinga, dry forest, carrasco, shrub caatinga, agricultural areas, grotas, and abandoned fields (Mares et al 1981, Monteiro Da Cruz et al 2005, Perez 2008, Freitas et al 2011, Dias et al 2014). This canid is abundant throughout its distribution (Beisiegel et al 2013) and is highly adaptable to variations in the environment (Berta 1982, Ferraz et al 2010, Beisiegel et al 2013.…”

Section: Discussionmentioning

confidence: 99%

“…It also seems to be tolerant of modified habitats, and may often use environments such as pastures and sugarcane, eucalypt, and pine plantations (e.g., Courtenay and Maffei 2004, Lyra-Jorge et al 2008, Bocchiglieri et al 2010). In the Caatinga, an endemic tropical dry forest of northeastern Brazil, which is characterised by xerophylous and deciduous vegetation types, Cerdocyon thous has been recorded in scrub, dry forest, riparian forest, and agricultural areas (Monteiro Da Cruz et al 2005, Freitas et al 2011, Dias et al 2014.…”

Section: Introductionmentioning

confidence: 99%

Trophic and spatio-temporal niche of the crab-eating fox, Cerdocyon thous (Linnaeus, 1766) (Carnivora: Canidae), in a remnant of the Caatinga in northeastern Brazil

Dias

Bocchiglieri²

2016

Mammalia

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Cerdocyon thous is widely distributed in South America and occurs throughout most of Brazil. However, little is known of its ecology in the semi-arid Caatinga biome, and this study aimed to characterise the ecological niche of the species in Sergipe, in the northeastern extreme of the country. The study was conducted over a period of 13 months, at the Grota do Angico Natural Monument (2138 ha), with monthly campaigns of 6 days in arboreal-shrubby caatinga, riparian forest, and grota (humid gallery forest). Sand plots and camera traps were used to collect records of the species, and faecal samples were collected whenever found during the monitoring of the plots. A total of 407 records of C. thous were obtained, with 308 in the plots and 99 in the traps. The species occurred throughout the entire study area, with no significant variation being found in the use of habitat (p = 0.1123). The monthly records were not randomly distributed (p = 0.009), being concentrated between November and June, although no clear seasonal pattern was identified (p = 0.383). The diet was classified as omnivorous, with a predominance of arthropods and fruit. Activity was primarily nocturnal, with no records being collected between 9 a.m. and 4 p.m.

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Abundance of Callicebus barbarabrownae (Hershkovitz 1990),(Primates: Pitheciidae) and other nonvolant mammals in a fragment of arboreal Caatinga in northeastern Brazil

Cited by 14 publications

References 8 publications

Diversity of nonvolant mammals in a Caatinga area in northeastern Brazil

Diversity of nonvolant mammals in a Caatinga area in northeastern Brazil

Playback point counts and N‐mixture models suggest higher than expected abundance of the critically endangered blond titi monkey in northeastern Brazil

Trophic and spatio-temporal niche of the crab-eating fox, Cerdocyon thous (Linnaeus, 1766) (Carnivora: Canidae), in a remnant of the Caatinga in northeastern Brazil

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