Foraging strategies and food partitioning in the neotropical frugivorous mammals <i>Caluromys philander</i> and <i>Potos flavus</i>

Julien-Laferrière, Didier

doi:10.1111/j.1469-7998.1999.tb00194.x

Cited by 42 publications

(24 citation statements)

References 10 publications

(15 reference statements)

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“…Hundreds of small seeds were seen concentrated into the caecum of an individual of C. lanatus analysed (CÁCERES & CASELLA in preparation) and this could be related, possibly, to storage of fruit components or vitamin extraction from them. Anyway, the diet of Caluromys is thought to be more herbivorous than previously known (JULIEN-LAFERRIÈRE 1999, SANTORI et al 2004, based on the proportion of its caecum (CROWE & HUME 1997).…”

Section: Discussionmentioning

confidence: 99%

“…The great caecum and hard gut of C. lanatus may be related to a diet based on plant material, as occurs in other frugivorous-herbivorous mammals (CHIVERS & HADLIK 1980, CHARLES-DOMINIQUE et al 1981SCHIECK & MILLAR 1985). The genus Caluromys Allen, 1900 is relatively more specialized in the consumption of fruits, gums and twigs (GRAND 1983, LEITE et al 1994, JULIEN-LAFERRIÈRE 1999, similarly to some primates (CHIVERS & HADLIK 1980, PASSOS 1999. A more frugivorous diet is associated to a small stomach chamber (HILDEBRAND 1995), just as observed here for C. lanatus.…”

Section: Discussionmentioning

confidence: 99%

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Comparative lengths of digestive tracts of seven didelphid marsupials (Mammalia) in relation to diet

Cáceres

2005

Rev. Bras. Zool.

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The relative proportions of the digestive tract were rarely explored to understand the behaviour and the ecology of neotropical marsupials. In this study, proportions of the digestive tract and diet were compared in seven opossum species. The animals studied were Didelphis albiventris Lund, 1840, D. aurita Wied-Neuwied, 1826, Metachirus nudicaudatus (Desmarest, 1817), Philander frenatus (Olfers, 1818), Lutreolina crassicaudata Desmarest, 1804, Monodelphis sorex (Hensel, 1872) and Caluromys lanatus (Olfers, 1818). Segments of digestive tracts of marsupials were measured and differences were statistically tested by Analysis of Variance and Covariance. Caecum and hard guts were responsible for the main differences among opossums, although all segments differed significantly. Caluromys lanatus was the most specialised species, with a large hard gut and caecum, small stomach and shorter small gut. The large caecum of M. nudicaudatus and the shortest hard gut of M. sorex were also noticed. The arboreal C. lanatus has a well different feeding habit and life style regarding other marsupials studied, such as M. sorex and M. nudicaudatus which are terrestrial, corroborating the results reached.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Comparative lengths of digestive tracts of seven didelphid marsupials (Mammalia) in relation to diet

Cáceres

2005

Rev. Bras. Zool.

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“…Rabia en Potos flavus la selva de Bolivia y la región de Mato Grosso en Brasil (9) . Pesa, en promedio, 2500 gramos y tiene un requerimiento energético de 1800 kJ por día; por ello, para cubrir sus requerimientos de nitrógeno deben consumir grandes cantidades de frutas en relación a su peso, su tracto digestivo es similar al de un carnívoro sin grandes adaptaciones para una dieta vegetal, son exclusivamente nocturnos y recorren largas distancias en búsqueda de alimentos en las coronas de grandes árboles frutales (9)(10)(11) .…”

Section: Introductionunclassified

Rabia en Potos flavus identificados en el departamento de Madre de Dios, Perú

Vargas-Linares

Romaní

López-Ingunza

et al. 2014

Rev Peru Med Exp Salud Publica

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RESUMENEl Potos flavus es un mamífero nocturno que habita en bosques neotropicales desde Centroamérica hasta Sudamérica. Se realizó un estudio de cuatro casos de rabia en Potos flavus ocurridos desde abril de 2012 en el departamento de Madre de Dios en Perú, captados como parte de la vigilancia epidemiológica. Los análisis realizados en el laboratorio de referencia regional de Madre de Dios determinaron presencia de antígeno del virus de la rabia en tres de las muestras de tejido encefálico, dichos resultados fueron corroborados en el Laboratorio de Zoonosis Virales del Instituto Nacional de Salud del Perú mediante inmunofluorescencia directa, la tipificación no identificó ninguna de las variantes conocidas en murciélagos o en perros. La ocurrencia de cuatro casos de rabia en Potos flavus suma evidencias de la emergencia de un nuevo reservorio del virus de la rabia y que ha sido reportada previamente en el mismo departamento el año 2007. Palabras claves: Rabia; Vigilancia epidemiológica; Técnica de inmunofluorescencia directa (fuente: DeCSS BIREME). RABIES IN Potos flavus IDENTIFIED IN MADRE DE DIOS, PERU ABSTRACTThe Potos flavus is a nocturnal mammal that lives in neotropical forests from Central America to South America. A study of four cases of rabies in Potos flavus was conducted; these occurred in April 2012 in the Madre de Dios region in Peru and were collected as part of epidemiological surveillance. The analysis performed in the regional reference laboratory of Madre de Dios determined the presence of the rabies virus antigen in three of the brain tissue samples. Results were verified in the Laboratory of Viral Zoonoses of the Peruvian National Institute of Health by direct immunofluorescence. The typification did not identify any of the known variants in bats or dogs. The occurrence of four cases of rabies in Potos flavus adds evidence of the emergence of a new reservoir of the rabies virus previously reported in the same region in 2007. Rev Peru Med Exp Salud PublicaOriginal Breve INTRODUCCIÓNEl virus de la rabia es un clásico patógeno zoonótico que produce un cuadro de encefalitis viral aguda (1) . Tiene un amplio rango de hospederos y puede, potencialmente, infectar a cualquier mamífero. En el periodo 2010-2012, el 41,4% de casos de rabia humana en Latinoamérica y el Caribe procedieron del Perú. En el 2012, en la región de las Américas, se registraron 24 casos de rabia humana, once de los cuales correspondieron a rabia transmitida por murciélagos (diez procedentes de Perú y uno de Brasil) (2)(3)(4) .En el Perú, los brotes de rabia silvestre han sido documentados en poblaciones humanas residentes de la selva, la mayoría de casos estuvieron asociados con el murciélago hematófago común (Desmodus rotundus) (3,(5)(6)(7) , también existe evidencia de circulación del virus en murciélagos no hematófagos como Tadarida brasiliensis y Lasiurus cinereus lo cual sugiere trasmisión interespecie (8) .El Potos flavus, conocido comúnmente como "chosna" (Figura 1), es un mamífero arbóreo y frugívoro que ocupa los bos...

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“…In addition, the role of coexistence of related animals in nature has been investigated, and results have shown reasonable niche segregation in the feeding habits of sympatric species, particularly for small and medium-sized omnivorous or frugivorous mammals (Charles-Dominique et al, 1981;Müller and Reis, 1992;Julien-Laferrière, 1999;Motta-Júnior, 2000).…”

Section: Introductionmentioning

confidence: 99%

Frugivory by the black-eared opossum Didelphis aurita in the Atlantic Forest of southern Brazil: Roles of sex, season and sympatric species

Cáceres¹,

Prates²,

Ghizoni-Junior³

et al. 2011

Biotemas

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Our objective in this study was to examine the frugivory performed by the black-eared opossum, Didelphis aurita Wied-Neuwied, 1826, in an area of the coastal Atlantic Forest of southern Brazil, including differences between sexes, seasonal variation, and relationships to other sympatric marsupials. We collected 63 fecal samples from a trap grid over a six-month period and analyzed seed presence, seed number and richness, and diversity of fruit species in feces. Diversity of fruit items was estimated by the Shannon index. Results showed a high variability in fruit consumption along the seasons, but no sexual difference in consumption. Sympatric marsupial species, including D. aurita, showed substantial differences in frugivory which may be related to body size, space use and differences in the foraging behavior of such species.Key words: coexistence, food partitioning, fruit consumption, Neotropical marsupial ResumoFrugivoria pelo gambá-de-orelha-preta Didelphis aurita em Floresta Atlântica do sul do Brasil: o papel do sexo, estação do ano e espécies simpátricas. Nosso objetivo neste estudo foi examinar a frugivoria desempenhada pelo gambá-de-orelha-preta Didelphis aurita Wied-Neuwied, 1826 em uma área de floresta atlântica da costa do Brasil, incluindo diferenças entre sexos, variação sazonal e relações com espécies simpátricas. Nós coletamos 63 amostras fecais em uma grade num período de seis meses. Foram analisadas a presença e o número de sementes e a riqueza e a diversidade de frutos nas fezes. A diversidade de frutos nas fezes foi estimada pelo índice de Shannon. Os resultados mostraram alta variabilidade no consumo de espécies de frutos ao longo dos meses, mas não havendo diferenças entre os sexos. As espécies de marsupiais simpátricas, incluindo D. aurita, mostraram diferenças substanciais quanto à frugivoria as quais devem estar relacionadas a diferenças de tamanho do corpo, uso do espaço e comportamento de forrageio dessas espécies.

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Foraging strategies and food partitioning in the neotropical frugivorous mammals Caluromys philander and Potos flavus

Cited by 42 publications

References 10 publications

Comparative lengths of digestive tracts of seven didelphid marsupials (Mammalia) in relation to diet

Comparative lengths of digestive tracts of seven didelphid marsupials (Mammalia) in relation to diet

Rabia en Potos flavus identificados en el departamento de Madre de Dios, Perú

Frugivory by the black-eared opossum Didelphis aurita in the Atlantic Forest of southern Brazil: Roles of sex, season and sympatric species

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