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Spatial ecology of monito del monte (Dromiciops gliroides) in a fragmented landscape of southern Chile

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Abstract

Habitat loss is one of the most important causes of biodiversity loss in South American temperate rainforests, where many endemic species exist. Among these is the monito del monte (Dromiciops gliroides), an arboreal marsupial with restricted distribution, and the only extant species of the order Microbiotheria. Current knowledge about monito del monte habitat use and its responses to human disturbances is scarce. To help fill this gap we investigated its habitat use and selection patterns in a fragmented landscape in southern Chile. Monito del monte individuals were abundant in a large and a small fragment, but rare or undetected in forest strips. Using telemetry data from 12 neighboring individuals in a large fragment and 2 individuals in a small fragment, we estimated their mean home range size of 1.6 ha±0.6 (1SD). Monitos del monte had a spatial overlap among individuals of 50±4%. Tracked individuals used old- and second-growth habitats as available, did not use the prairie habitats, and strongly avoided the scrublands. In the large fragment we estimated a relative population density of 21±5 individuals/ha (mean±1SD), whereas in the small fragment it was of 19±6 individuals/ha. This is, to our knowledge, the first study of the spatial ecology of the monito del monte based on telemetry data, and evidence presented here could have conservation and planning implications, not only for the target species but also its habitat.

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Authors and Affiliations

  1. Laboratorio de Ecología Terrestre, Facultad de Ciencias, Universidad de Chile, Las Palmeras 3425, Ñuñoa, Santiago, Chile

    Francisco E. Fontúrbel

  2. Laboratorio de Vida Silvestre, Universidad de Los Lagos, P.O. Box 933, Osorno, Chile

    Francisco E. Fontúrbel & Jaime E. Jiménez

  3. Department of Wildlife Ecology and Conservation and School of Natural Resources and Environment, University of Florida, 110 Newins-Ziegler Hall, Gainesville, FL, 32611-0430, USA

    Eduardo A. Silva-Rodríguez

  4. Complejo Ecoturístico Cascadas-Proyecto IBAM, Universidad de Los Lagos, P.O. Box 933, Osorno, Chile

    Nelson H. Cárdenas

Authors
  1. Francisco E. Fontúrbel
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  2. Eduardo A. Silva-Rodríguez
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  3. Nelson H. Cárdenas
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  4. Jaime E. Jiménez
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Correspondence to Francisco E. Fontúrbel.

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Fontúrbel, F.E., Silva-Rodríguez, E.A., Cárdenas, N.H. et al. Spatial ecology of monito del monte (Dromiciops gliroides) in a fragmented landscape of southern Chile. Mamm Biol 75, 1–9 (2010). https://doi.org/10.1016/j.mambio.2009.08.004

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  • DOI: https://doi.org/10.1016/j.mambio.2009.08.004

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