Population Density of the Helmeted Curassow (Pauxi pauxi) in Tamá National Park, Colombia

Setina, Víctor; Lizcano, Diego J.; Brooks, David W.; Silveira, Luís Fábio

doi:10.1676/11-097.1

Cited by 6 publications

(8 citation statements)

References 28 publications

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“…The study was conducted in Tamá NNP and buffer zones (La Carpa and La Rochela areas;7° 14' 36" N,WGS84), in the Department of Norte de Santander, in the northern most extreme of the Colombian Andes mountain range on the border with Venezuela. With an elevation gradient ranging from 350 to 3,500 m (Setina et al 2012), Tamá NNP and its buffer zone has an approximate area of 53,000 ha (48,000 ha of official park) and is composed mostly of Andean and Sub-Andean forests (36.6 and 27.9 %, respectively), Tropical forests (18.8 %), and a lower proportion of cloud forests (7.8 %) and Páramo (8.9 %;Holdridge 1987;Minambiente 2008). These protected areas comprise the entire Tamá massif, commonly known as the Tamá Binational Park (Minambiente 2008).…”

Section: Methodsmentioning

confidence: 99%

Terrestrial medium and large-sized mammal’s diversity and activity patterns from Tamá National Natural Park and buffer zone, Colombia

Cáceres-Martínez

Acevedo

González‐Maya³

2016

Therya

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The eastern mountain range of Andes in Colombia is one of the least studied areas for mammals in the country, yet, potentially one of the most diverse. Here we present the first survey of medium and large-sized mammals for Tamá National Natural Park (NNP) and La Carpa and La Rochela buffer areas, as basic information for the conservation and management of the NNP, including the potential inclusion of these buffer zones as part of the NNP. We used different complementary survey techniques (i. e., camera-traps, transects and interviews) to assess the diversity of these mammals in a 216 km 2 area of the park; our effort included 72 linear transects of 1.8 Km, opportunistic sampling sessions, 16,714 camera trap-days, 39 structured interviews and indirect records and direct observation of animals. We recorded 21 species of mammals classified in 8 orders and 16 families distributed in four conservation categories. Complementary methods significantly improved the results. We found a dominant nocturnal activity pattern for the assemblage and low activity overlapping among most species. This is the first assessment of medium and large-sized mammal's diversity for Tamá NNP and for most North-eastern Andes in the country. Our results highlight the presence of large threatened species such as Tremarctos ornatus, Puma concolor and Mazama rufina. Our results could serve as basis for the conservation planning and management of the protected area and its buffer zones, and the potential expansion of the park. La cordillera Oriental de los Andes en Colombia es una de las áreas menos estudiadas para los mamíferos en Colombia, sin embargo, potencialmente, una de las más diversas en el país. Aquí presentamos la primera evaluación de los mamíferos medianos y grandes para el Parque Nacional Natural (PNN) Tamá y las zonas de amortiguamiento La Carpa y La Rochela, como información básica para la conservación y manejo del PNN y el manejo del área, incluyendo la potencial inclusión de estas zonas como parte del PNN. Utilizamos diferentes técnicas de muestreo complementarias (i. e., Cámaras trampa, transectos y entrevistas) para evaluar la diversidad de los mamíferos en 216 km 2 ; nuestro esfuerzo incluyó 72 transectos lineales de 1.8 km, sesiones de muestreo oportunistas, 16,714 días/trampa, 39 entrevistas estructuradas y registros indirectos y la observación directa de los animales. Se registraron 21 especies de mamíferos clasificadas en 8 órdenes y 16 familias distribuidas en cuatro categorías de conservación. Esta es la primera evaluación de la diversidad de mamíferos medianos y grandes del PNN Tamá y para la mayor parte de los Andes Nororientales del país. Nuestros resultados resaltan la presencia de especies amenazadas grandes como Tremarctos ornatus, Puma concolor and Mazama rufina. Nuestros resultados servirán de base para el manejo y planificación de conservación del área protegida y sus zonas de amortiguamiento, así como la potencial ampliación del mismo.

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Section: Methodsmentioning

confidence: 99%

Terrestrial medium and large-sized mammal’s diversity and activity patterns from Tamá National Natural Park and buffer zone, Colombia

Cáceres-Martínez

Acevedo

González‐Maya³

2016

Therya

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“…Given the importance of population data for conservation management, testing the utility of existing approaches for estimating population sizes for cryptic species is a fundamental starting point. Distance sampling line transects are often used to estimate the abundance of cracids (Conroy & Carroll, 2000; Haugaasen & Peres, 2008; Barrio, 2011; Desbiez & Bernardo, 2011; Setina et al, 2012). This approach relies on visual detections to estimate abundance, but for rare curassow species aural detections are also recorded to boost sample sizes (Cox et al, 1997; Jiménez et al, 2003) as the number of visual detections is usually low.…”

Section: Introductionmentioning

confidence: 99%

Population size assessment of the Endangered red-billed curassowCrax blumenbachii: accounting for variation in detectability and sex-biased estimates

Alves

Iborra

Silveira

2015

Oryx

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The Endangered red-billed curassow Crax blumenbachii is endemic to the lowland Atlantic Forest of Brazil and is extinct across most of its range as a result of habitat loss and hunting pressure. Global population estimates are unreliable as the species has never been surveyed systematically. During March -February  we used line transects to estimate the density and size of one of the most important populations, in the Vale Nature Reserve. Using Distance we estimated a density of . individuals per km  ; results stratified by sex indicated a male-skewed sex ratio. Data collected from motion-activated cameras confirmed that the population was male skewed but to a lesser degree than suggested by transect data. Sex-specific behavioural responses to the presence of an observer probably contributed to the difference between camera and transect data. Using the camera-derived sex ratios we corrected transect estimates to . individuals per km  and a population of  individuals. Our systematic survey approach has revealed that Vale Nature Reserve has a larger population than previous estimates of the global population. We show that behavioural differences between the sexes in cryptic species can mislead population estimates, and we highlight the importance of motion-activated cameras as a tool for studying cryptic forest species.

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“…The Red-Billed Curassow density in our study (1.3 individual/km 2 -corrected estimate 1.6 individual/km 2 ) was similar to those of other curassows such as Crax rubra griscomi (1.02; Martínez-Morales, 2009), Pauxi tuberosa (1.11/1.65; Haugaasen & Peres, 2008) and Crax alberti (1.66; González, 2004). However higher density were found for other species such as Pauxi pauxi (4.8; Setina et al, 2012), Crax globulosa (3.4; and Crax fasciolata (4.66;…”

Section: Discussionmentioning

confidence: 87%

“…A amostragem de distâncias é amplamente utilizada para estimar abundância e tamanho populacional de diversos táxons, inclusive de cracídeos (e.g. Aars et al, 2009;Buckland, et al, 2010;Dick & Hines, 2011;Martínez-Morales, 1999;, Setina et al, 2012.…”

Section: Amostragem De Distâncias Para Estimativas Populacionaisunclassified

“…Line transects are often used to estimate the abundance of cracid populations (e.g. Conroy & Carroll, 2000;Haugaasen & Peres, 2008;Barrio, 2011;Desbiez & Bernardo, 2011;Setina et al, 2012). Transect surveys rely on visual detections to estimate abundance but for intrinsically rare curassow species, the number of visual detections is usually low, so aural detections are also recorded to boost sample sizes (Cox et al,1997;Jiménez et al, 2003).…”

Section: Introductionmentioning

confidence: 99%

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Densidade populacional e seleção de habitat pelo mutum-do-sudeste, Crax blumenbachii, na Reserva Natural Vale, Linhares, Espírito Santo

Alves¹

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Aos meus pais (Maria e Osvaldo), pelo amor incondicional, pelo apoio e pelas palavras de incentivo, e simplesmente por serem pessoas humildes e maravilhosas. Amo vocês! Ao Eric, meu "namorido", eterno companheiro, ajudante para qualquer assunto, paciência em pessoa. Obrigada por sempre me ajudar com sua cabeça de programador nas horas de desespero com o R. Muito obrigada por aguentar todos os momentos de estresse, ansiedade, desespero e felicidade (não teve só coisa ruim...rs) durante a dissertação e desde quando nos conhecemos! Te amo muito! Ao Germán que me orientou durante o estágio de pesquisa na Espanha e que me aproximou um pouquinho da estatística que tanto me assombra. Obrigada pelo aprendizado, pela paciência e atenção durante todo o estágio. Pelas saídas de campo que com certeza acrescentaram ainda mais a minha temporada na Espanha. Muchas gracias! A todos aqueles que sofreram comigo em campo, sofreram porque eram 8 km por dia durante 12 dias por mês, não é pra qualquer um. Sem contar nos carrapatos, ah só quem foi sabe como é. Muito obrigada pela força, Bruno Rennó (meu primo), Marco

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Population Density of the Helmeted Curassow (Pauxi pauxi) in Tamá National Park, Colombia

Cited by 6 publications

References 28 publications

Terrestrial medium and large-sized mammal’s diversity and activity patterns from Tamá National Natural Park and buffer zone, Colombia

Terrestrial medium and large-sized mammal’s diversity and activity patterns from Tamá National Natural Park and buffer zone, Colombia

Population size assessment of the Endangered red-billed curassowCrax blumenbachii: accounting for variation in detectability and sex-biased estimates

Densidade populacional e seleção de habitat pelo mutum-do-sudeste, Crax blumenbachii, na Reserva Natural Vale, Linhares, Espírito Santo

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