Towards a standard framework to describe behaviours in the common-sloth (Bradypus variegatus Schinz, 1825): novel interactions data observed in distinct fragments of the Atlantic forest, Brazil

Silva, Sofia; Clozato, Camila L.; Moraes‐Barros, Nadia; Morgante, João Stenghel

doi:10.1590/s1519-69842013000300010

Cited by 13 publications

(14 citation statements)

References 12 publications

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“…We also noted that individuals of this population were slightly smaller than those observed elsewhere, suggesting the possibility of limited food. Queiroz et al (2015) Botanic Garden Benjamin Maranhão, Paraiba, Brazil 26 Observations/Urban forest fragment Silva et al (2013) A second possibility is that the lack of predators in this "urban" location, e.g., harpy eagles, arboreal cats, large snakes, etc. might allow for a substantial increase in population size (Réus & Martins de Souza, 2007).…”

Section: Discussionmentioning

confidence: 99%

“…Because they are generally stationary, freeze in response to loud sounds, avoid predators by moving slowly, and are extremely silent when making rare and careful movements (Chiarello, 2008), sloths are difficult to locate, even when they are gregarious in anthropogenic habitats (Silva et al, 2013). Consequently, studies of the ecology, abundance, and density of B. tridactylus are lacking.…”

Section: Introductionmentioning

confidence: 99%

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Sloths in the city: unexpectedly high density of pale-throated three-toed sloths (Bradypus tridactylus) found in an urban forest patch in Paramaribo, Suriname

Pool¹,

Boateng²,

Ako-Adounvo³

et al. 2016

Edentata

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In October 2012 individuals associated with the Green Heritage Fund Suriname organized a rescue of arboreal mammals displaced during deforestation of a 6.8 ha plot in northwest Paramaribo. Rescued or observed animals included 137 pale-throated three-toed sloths (Bradypus tridactylus), eight two-toed sloths (Choloepus didactylus), three Brazilian porcupines (Coendou prehensilis), and three silky anteaters (Cyclopes didactylus). In addition, two lesser anteaters (Tamandua tetradactyla) -a mother and baby -were seen but not rescued. Due to their lack of speed and inability to escape, it is likely that almost all of the pale-throated sloths in the forested plot were captured during the thirty-day period of clear-cutting. Comprising 91% of the total rescued animals, the 137 B. tridactylus included 61 males, 56 females, 15 juveniles, and five adults that could not be sexed. Data on body mass, length, and other features reveal a population of reasonably healthy but smaller animals at a population density of 20.1 animals/ha that far exceeds any previous reports for this species.Keywords: habitat fragmentation, Pilosa, population density, urban mammal, urbanophilic, Xenarthra Inesperada alta densidad de perezosos de tres dedos (Bradypus tridactylus) en un parche de bosque urbano en Paramaribo, Suriname Resumen En octubre de 2012, voluntarios asociados a Green Heritage Fund Suriname organizaron un rescate de mamíferos arbóreos desplazados durante la deforestación de una parcela de 6,8 ha situada al noroeste de Paramaribo. Los animales rescatados incluyeron 137 perezosos de tres dedos (Bradypus tridactylus), ocho perezosos de dos dedos (Choloepus didactylus), tres puercoespines brasileños (Coendou prehensilis) y tres hormigueros sedosos (Cyclopes didactylus). Además fueron vistos dos osos meleros (Tamandua tetradactyla) -una madre y su cachorro -aunque no fueron recogidos. Debido a su baja velocidad y su incapacidad para esconderse, es probable que prácticamente todos los animales de la parcela fueran capturados durante el período de tala de 30 días. Bradypus tridactylus representó el 91% del total de los animales rescatados; de los 137 individuos, 61 eran machos, 56 hembras, 15 juveniles y cinco adultos que no pudieron ser sexados. Los datos colectados sobre peso corporal, longitud y otras características muestran una población de animales razonablemente sanos pero más pequeños, con una densidad poblacional de 20,1 animales/ha que excede con creces a la de cualquier reporte previo de esta especie.Palabras clave: densidad poblacional, fragmentación de hábitat, mamíferos en áreas urbanas, Pilosa, Xenarthra

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Sloths in the city: unexpectedly high density of pale-throated three-toed sloths (Bradypus tridactylus) found in an urban forest patch in Paramaribo, Suriname

Pool¹,

Boateng²,

Ako-Adounvo³

et al. 2016

Edentata

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“…Para discernimento do sexo dos indivíduos foi utilizada a presença do espéculo, uma estrutura presente no dorso composto de pelos curtos, negros com as bordas alaranjadas que ocorre exclusivamente machos adultos da espécie (Pinheiro, 2008;Castro-Vásquez et al, 2010;Silva et al, 2013).…”

Section: Identificação Das Classes-sexo Etáriasunclassified

“…Também foram comparados com o comportamento e uso de estratos vegetais de populações de B. variegatus em outros estudos na UFPB (Martin, 2015), em ambientes urbanos (Pedrosa e Castro, 2014), semi-urbanos (Urbani e Bosque, 2006; Silva et al, 2013) e ambientes naturais (Castro-Vasquez et al, 2010;Pedrosa e Castro, 2014).…”

Section: Análise Dos Dadosunclassified

Monitoramento do bicho-preguiça Bradypus variegatus Schinz, 1825 (Xenarthra: Bradypodidae) em um remanescente de Floresta Atlântica (João Pessoa-PB, Nordeste do Brasil)

Silva¹,

Paz²,

Cordeiro³

2017

Rev. Bras. Gest. Amb. Sustent.

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Resumo.A fragmentação dos habitats da Floreta Atlântica ameaçam a mastofauna silvestre promovendo isolamentos genéticos das populações, diminuição da variabilidade genética, aumento do risco de doenças, além de afetar a dinâmica dos grupos, comportamentos e área de uso. Encontra-se ameaçada Bradypus variegatus Schinz, 1825 (Xenarthra, Bradypodidae), os bichos-preguiça, presentes nos remanescentes da Universidade Federal da Paraíba (UFPB). Um dos problemas mais comuns com os grupos destes animais está associado aos atropelamentos e morte por queda durante a travessia entre fragmentos, porém ainda são escassos os estudos de manejo e gestão dos animais ocasionando impactos ecológicos proporcionados por manejos equivocados e com a translocação de animais para outras áreas de Floresta Atlântica na Paraíba. A presente pesquisa teve como objetivos verificar e monitorar o uso de espaço por B. variegatus nos fragmentos da UFPB, realizar o levantamento de uso de estratos vegetais e comportamentos exibidos pelos animais nas bordas dos fragmentos com o intuito de promover estratégias eficazes de manejo dos animais. Para isso foram coletados através de um etograma o uso de estratos vegetais e comportamentos exibidos pelos animais nas áreas de bordas dos fragmentos internos da UFPB. A partir destes dados foram obtidos um maior uso para os comportamentos de deslocamento, alimentação, forrageio e agonismo o estrato de subbosque, já os estratos bosques e dosséis foram exclusivos para alimentação, forrageio e deslocamento; enquanto que o solo foi o estrato que mais possuiu comportamentos agonísticos direcionados aos humanos, principalmente a aqueles que manejavam os bichos preguiça. Além disso, foi obtido consumo por uma fêmea adulta de uma espécie de liana (Stygmaphyllum rotundifolia) que recobre parcialmente uma das pontes ecológicas. Outro registro importante foi obtido através de entrevista livre que amostrou fotograficamente uma preguiça fêmea adulta carregando um infante no dorso durante o período noturno, utilizando o sub-bosque de uma árvore isolada no estacionamento do Centro de Ciências Exatas e da Natureza (CCEN). No total, 261 comportamentos e 247 usos de estratos vegetais por

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“…These are the brownthroated three-toed sloth, B. variegatus (Soares & Carneiro, 2002;Bezzera et al, 2008;Hayssen, 2010), and the pale-throated three-toed sloth, B. tridactylus (Hayssen, 2009a). The other two species, the maned sloth, B. torquatus (Hayssen, 2009b), and the pygmy sloth, B. pygmaeus (Hayssen, 2008) Because they are generally stationary, freeze in response to loud sounds, avoid predators by moving slowly, and are extremely silent when making rare and careful movements (Chiarello, 2008), sloths are difficult to locate, even when they are gregarious in anthropogenic habitats (Silva et al, 2013). Consequently, studies of the ecology, abundance, and density of B. tridactylus are lacking.…”

Section: Introductionmentioning

confidence: 99%

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2016

Edentata

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The editors wish to thank all reviewers for their collaboration. Front Cover Photo Letter from the EditorsWelcome to Edentata 17! This year's issue of Edentata includes five articles, three short communications, and two field notes, all of them related to the conservation of xenarthrans. Among others, you will find two articles on the poorly known Dasypus kappleri, three on tamanduas, and two articles from countries that have notoriously been underrepresented in the literature on xenarthrans: Suriname and Chile. There is even an article on armadillo consumption by an unusual species, the tiger shark.As always, you will find some interesting announcements in the News section, including the well-deserved recognition of our Panamanian Specialist Group member and pygmy sloth expert Diorene J. Smith as a Disney Conservation Hero. Congratulations, Diorene! We are pleased to inform you that all articles published in Edentata will now have a Digital Object Identifier (DOI). You will find it in the header of each article's cover page. We are immensely thankful to IUCN, and especially to Deborah Murith from IUCN's Science and Knowledge Unit, for their help with assigning the DOI's to Edentata.Mariella Superina has been invited to serve as Chair of our Specialist Group during the next quadrennium. She is honored to do so, and extremely happy that Nadia Moraes-Barros and Agustín M. Abba have agreed to continue acting as Deputy Chair and Red List Authority, respectively, for another four years. We have taken the opportunity to include more experts in our Specialist Group with the purpose of reaching a balanced group of motivated, active members that represent all (or most) range countries and taxa. Following recommendations by our current members, the evaluation committee has selected the following new members: Monique Pool (Green Heritage Fund Suriname), Lizette Bermúdez (Parque Zoológico Huachipa, Peru), Maria Clara Arteaga (Centro de Investigación Científica y de Educación Superior de Ensenada, Mexico), Andy Noss (University of Florida, USA), and Paul Smith (FAUNA Paraguay). We would like to give them a warm welcome and are looking forward to working with them! Finally, we are hugely grateful to Austin Zoo for the generous financial support, which once again allowed us to publish Edentata. Last, but not least, we would like to thank all anonymous reviewers for their excellent work. Abstract Indigenous knowledge is a potentially important source of natural history information about unstudied species of large Amazonian mammals. The Matses, a Panoan-speaking tribe that lives in the basin of the Río Yavarí in northeastern Peru and western Brazil, retain intact traditional knowledge of the local fauna and flora. Our interviews with Matses hunters provide a rich source of original observations about Dasypus kappleri, the greater long-nosed armadillo, which we analyzed for accuracy and content by comparing items of Matses natural history information with the scientific literature. Of 66 items about this species gleaned from ei...

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Towards a standard framework to describe behaviours in the common-sloth (Bradypus variegatus Schinz, 1825): novel interactions data observed in distinct fragments of the Atlantic forest, Brazil

Cited by 13 publications

References 12 publications

Sloths in the city: unexpectedly high density of pale-throated three-toed sloths (Bradypus tridactylus) found in an urban forest patch in Paramaribo, Suriname

Sloths in the city: unexpectedly high density of pale-throated three-toed sloths (Bradypus tridactylus) found in an urban forest patch in Paramaribo, Suriname

Monitoramento do bicho-preguiça Bradypus variegatus Schinz, 1825 (Xenarthra: Bradypodidae) em um remanescente de Floresta Atlântica (João Pessoa-PB, Nordeste do Brasil)

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