Ecology of Marsupials in Two Amazonian Rain Forests in Northeastern Peru

Fleck, David W.; Harder, John D.

doi:10.2307/1382749

Cited by 29 publications

(16 citation statements)

References 13 publications

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“…A predação e tentativas de predação foram observadas diversas vezes para três das seis espécies estudadas, sendo que uma delas (P. opossum) atuou como predador. Esta interação tem sido mostrada como importante força na estruturação de comunidades (BEGON et al 1996) Por outro lado, FLECK & HARDER (1995), em estudo na floresta amazônica, concluíram que a atividade reprodutiva de marsupiais estava positivamente relacionada com as chuvas e a produção de frutos. O'CONNELL (1989) também registra o perí-odo reprodutivo de marsupiais na estação chuvosa.…”

Section: Discussionunclassified

História natural e biologia reprodutiva de marsupiais no Pantanal, Mato Grosso, Brasil

Aragona¹,

Marinho‐Filho²

2009

Zoologia (Curitiba, Impr.)

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Localizado na fronteira entre Brasil, Paraguai e Bolívia, o Pantanal é a maior planície intermitente e sazonalmente inundada do mundo. O pulso de inundação -a flutuação anual do nível da água -regula os processos ecológicos ali ocorrentes (JUNK & DA SILVA 1999), gerando uma periodicidade nas drásti-cas mudanças das condições ambientais dos habitats. A flora e a fauna da planície pantaneira são oriundas dos biomas adjacentes (Cerrado, Chaco, Mata Atlântica e Amazônia) e apresentam baixas taxas de endemismos (BRASIL 1997, JUNK & DA SILVA 1999, DA SILVA et al. 2001.Atualmente 55 espécies de marsupiais são descritas para o Brasil, representando cerca de 8,4% das 652 espécies de mamífe-ros nativos, registradas e reconhecidas neste país (REIS et al. 2006). Para o Pantanal, 14 espécies de marsupiais são conhecidas. Treze delas ocorrem na borda, das quais seis também ocorrem na planície pantaneira, sujeita a alagamento. Uma espécie, Micoureus demerarae (Thomas, 1905) (= M. cinereus), está descrita apenas para a planície (RODRIGUES et al. 2005). Das sete espécies descritas para a planície, cinco são abordadas neste estudo, além de Caluromys philander (Linnaeus, 1758), que só era descrita fora da planície. Todas são de ampla distribuição geográfica (EISENBERG & REDFORD 1999) e a literatura acerca da história natural destas espécies é oriunda de diversos biomas, exceto do Pantanal. Informações sobre a biologia reprodutiva, dieta, comportamento e uso de habitat das espécies de marsupiais que ocorrem na planí- Com o intuito de fortalecer o conhecimento acerca da história natural de marsupiais, este trabalho tem como objetivo descrever alguns aspectos da biologia reprodutiva, comportamento e uso de habitats de marsupiais no Pantanal matogrossense. MATERIAL E MÉTODOS

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Section: Discussionunclassified

História natural e biologia reprodutiva de marsupiais no Pantanal, Mato Grosso, Brasil

Aragona¹,

Marinho‐Filho²

2009

Zoologia (Curitiba, Impr.)

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“…The establishment of a forestry research station near the town of Jenaro Herrera on the right bank of the Ucayali in the late 1960s provided a base of operations for faunal research that resulted in an early primate inventory (Aquino, 1978), descriptions of several new species of rodents and marsupials (Pacheco, 1991;Malygin et al, 1994;Solari, 2007), the first published list of bats from the Yavarí-Ucayali interfluve , and various ecological publications (e.g., Gorchov et al, 1993;Fleck and Harder, 1995). Substantial collections from this locality were made over several decades by mammalogists from the Museo de Historia Natural de la Universidad Nacional Mayor de San Marcos (MUSM).…”

Section: Mammalogical Explorationmentioning

confidence: 99%

Mammalian Diversity and Matses Ethnomammalogy in Amazonian Peru Part 1: Primates

Voss

Fleck

2011

Bulletin of the American Museum of Natural History

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“…This mouse opossum uses the floor and the lower vegetation in the forest, and areas with dense understory, especially near wetlands in primary or secondary forest (Emmons and Feer 1997;Eisenberg and Redford 1999). M. noctivagus is the most common marsupial in the Peruvian rainforests (Fleck and Harder 1995;Valqui 2001), and has been reported as common species in fragments 440 has in the Brazilian Amazon (dos Santos-Filho et al 2008). Nevertheless, other studies report a decline of Marmosops species in small fragments (de Castro and Fernandez 2004;Vargas and Simonetti 2004;Püttker et al 2008).…”

Section: Discussionmentioning

confidence: 99%

Small mammal assemblages in a disturbed tropical landscape at Pozuzo, Peru

Mena¹,

Medellín

2010

Mammalian Biology

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Deforestation in the Peruvian pre-montane forests has increased alarmingly in recent years. Particularly, fragmentation in these forests takes place against a background of very extensive continuous forest. Until now, no studies have detailed how Peruvian small mammals responded to forest fragmentation. In this paper, we report the results of an assessment of nonvolant small mammal fauna in forest remnants (one large fragment and one small fragment) and cattle pasture in a disturbed landscape at Pozuzo, formerly a pre-montane tropical forest in central Peru. In each forest remnant, we quantify habitat parameters and identified small mammals to know if there is a relationship between forest remnant size or microhabitat structure and small mammal assemblages. In addition, we investigated the influence of habitat structure on the presence of small mammal species. We did not find any evidence that habitat structure in large fragment was greater than small fragment. Actually, both forest remnants presented habitat features typical of forests subject to higher levels of disturbance. We found that abundance of small trees (10 -19 cm DBH) was positively associated with the presence of Marmosops noctivagus, but negatively with the presence of Oecomys bicolor. Likewise, the presence of the arboreal Rhipidomys leucodactylus was associated with the abundance of larger trees (DBH 4 50 cm). We recorded 12 small mammal species in large fragment, 9 in small fragment and 3 in cattle pasture. No significant differences were found in species richness between both fragments, but marsupial abundance in the small fragment was greater than large fragment. At Pozuzo, we recorded 9 species restricted to forest habitat and 3 to forest and cattle pastures. However, it is necessary to assess more fragments to improve our knowledge about species survival in this landscape.

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Ecology of Marsupials in Two Amazonian Rain Forests in Northeastern Peru

Cited by 29 publications

References 13 publications

História natural e biologia reprodutiva de marsupiais no Pantanal, Mato Grosso, Brasil

História natural e biologia reprodutiva de marsupiais no Pantanal, Mato Grosso, Brasil

Mammalian Diversity and Matses Ethnomammalogy in Amazonian Peru Part 1: Primates

Small mammal assemblages in a disturbed tropical landscape at Pozuzo, Peru

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