Wildlife Research Wildlife Research Society
Ecology, management and conservation in natural and modified habitats

Habitat use of remnant forest habitats by the threatened arboreal marsupial Dromiciops gliroides (Microbiotheria) in a rural landscape of southern Chile

Cecilia Smith-Ramirez A B F , Juan L. Celis-Diez A C , Erik von Jenstchyk A D , Jaime E. Jimenez E and Juan J. Armesto A C

A Instituto de Ecología y Biodiversidad, Casilla 653, Santiago, Chile.

B Instituto de Geociencias, Universidad Austral de Chile, Valdivia, Chile.

C Centro de Estudios Avanzados en Ecología y Biodiversidad, Pontificia Universidad Católica de Chile, Casilla 114-D, Santiago, Chile.

D Universidad de La Frontera, Temuco, Chile.

E Laboratorio de Ecología, Universidad de Los Lagos, Casilla 933, Osorno, Chile.

F Corresponding author. Email: csmith@willnet.cl

Wildlife Research 37(3) 249-254 http://dx.doi.org/10.1071/WR09050
Submitted: 25 April 2009  Accepted: 30 March 2010   Published: 18 May 2010


Context. Remnant forest patches in rural landscapes may be important sites for maintaining viable populations of restricted forest species, especially when these remnant habitats maintain some connectivity, for instance through riparian vegetation strips and other forest patches.

Aims. We assessed the use of remnant forest habitats in a rural landscape of southern Chile (40°S) by the ‘near threatened’ arboreal marsupial Dromiciops gliroides (Microbiotheria), in relation to habitat type (riparian strips, forest fragments and continuous forests), width of the riparian forests, and the presence and abundance of the hemiparasite Tristerix corymbosus, whose fruits are readily eaten by D. gliroides.

Methods. In two summers, 2004 and 2008, we set up grids of 96 live traps for three consecutive nights at each of 16 sites along two riparian forest strips, four additional sites in remnant, non-riparian forest patches, and four more within continuous pre-Andean forest. We counted hemiparasites on trees in the trapping grid area, and estimated their individual volumes.

Key results . In total, 48 individuals of D. gliroides were captured at all sites during the 2 years. We documented a significant positive relationship between the width of riparian vegetation and the number of individuals captured (r s = 0.78, P = 0.02, n = 8) for one riparian strip, but not for the second one. Neither habitat type nor the frequency of hemiparasites related statistically to D. gliroides abundance.

Key conclusions. We conclude that in the rural landscape of the Chilean Lake District, narrow riparian forest strips, in a highly inter-connected mosaic of remnant forest patches may be as important as large patches and continuous Andean forests to sustain viable populations of this threatened, strictly arboreal, marsupial.

Implications. The present study reports, for the first time, the presence in narrow riparian forests immersed in a pasture-dominated agricultural matrix of this forest-specialist marsupial, which was previously known only from continuous pre-Andean forests.


Amico G. Aizen M. 2000 Mistletoe seed dispersal by a marsupial. Nature 408 929 930

Amico G. C. Rodríguez-Cabal M. Aizen M. A. 2009 The potential key seed-dispersing role of the arboreal marsupial D. gliroides. Acta Oecologica 35 8 13

Armesto J. J. Rozzi R. Miranda P. Sabag C. 1987 Plant/frugivore interactions in South American temperate forests. Revista Chilena de Historia Natural (Valparaiso, Chile) 60 321 336

Armesto J. J. , Smith-Ramírez C. , Carmona M. , Celis-Diez J. L. , Díaz I. , Gaxiola A. , Gutiérrez A. C. , Núñez-Avila M. , Pérez C. , and Rozzi R. (2009). Old-growth temperate rain forests of South America: conservation, plant–animal interactions, and baseline biogeochemical processes In ‘Old-Growth Forests. Function, Fate and Value’. (Eds C. Wirth, M. Heimann and G. Gleixner.) pp. 367–390. (Springer-Verlag: Berlin.)

Armesto J. J. Manuschevich D. Mora A. Smith-Ramirez C. Rozzi R. Abarzúa A. M. Marquet P. A. 2010 From the Holocene to the Anthropocene: a historical framework for land cover change in southwestern South America in the past 15 000 years. Land Use Policy 27 148 160

Beier P. Noss R. 1998 Do habitat corridors provide connectivity? Conservation Biology 12 1241 1252 doi:10.1046/j.1523-1739.1998.98036.x

Celis-Diez J. L. (2010) Historia natural y demografía del marsupial arbóreo D. gliroides en bosques nativos primarios y degradados del norte de la Isla Grande de Chiloé. Ph.D. Thesis, Facultad de Ciencias, Universidad de Chile, Santiago, Chile.

Chan K. M. A. Daily G. C. 2008 The payoff of conservation investments in tropical countryside. Proceedings of the National Academy of Sciences, USA 105 19 342 19 347 doi:10.1073/pnas.0810522105

Daily G. C. Ceballos G. Pacheco J. Suzan G. Sanchez-Azofeifa A. 2003 Countryside biogeography of Neotropical mammals: conservation opportunities in agricultural landscapes of Costa Rica. Conservation Biology 17 1814 1826 doi:10.1111/j.1523-1739.2003.00298.x

de Lima M. Gascon C. 1999 The conservation value of linear forest remnants in central Amazonia. Biological Conservation 91 241 247 doi:10.1016/S0006-3207(99)00084-1

Diaz M. , and Teta P. (2008). D. gliroides. In ‘IUCN 2009. IUCN Red List of Threatened Species. Version 2009.2’. Available at www.iucnredlist.org [verified 1 February 2010].

Echeverría C. Coomes D. Newton A. Rey-Benayas J. M. Lara A. 2007 Impacts of forest fragmentation on species composition and forest structure in the temperate landscape in southern Chile. Global Ecology and Biogeography 16 426 439 doi:10.1111/j.1466-8238.2007.00311.x

Fontúrbel F. E. Silva-Rodríguez E. A. Cárdenas N. H. Jiménez J. E. 2010 Spatial ecology of monito del monte (D. gliroides) in a fragmented landscape of southern Chile. Mammalian Biology 75 1 9 doi:10.1016/j.mambio.2009.08.004

García D. Rodríguez-Cabal M. Amico G. 2009 Seed dispesal by a frugivorous marsupial shapes the spatial scale of a mistletoe population. Journal of Ecology 93 693 704

Gentry D. J. Swanson D. L. Carlisle J. D. 2006 Species richness and nesting success of migrant forest birds in natural river corridors and anthropogenic woodlands in southeastern South Dakota. The Condor 108 140 153

Haddad N. Bowne D. Cunningham A. Danielson B. Levey D. Sargents S. Spira T. 2003 Corridors use by diverse taxa. Ecology 84 609 615 doi:10.1890/0012-9658(2003)084[0609:CUBDT]2.0.CO;2

Hershkowitz P. 1999 D. gliroides Thomas, 1894. Last of the Microbiotheria (Marsupialia), with a review of the Family Microbiotheriidae. Fieldiana Zoology 93 1 60

Hilty J. A. Merenlender A. M. 2004 Use of riparian corridors and vineyards by mammalian predators in northern California. Conservation Biology 18 126 135

Hilty J. A. , Lidicker W. Z. Jr , and Merenlender A. M. (2006). ‘Corridor Ecology.’ (Island Press: Washington, DC.)

Laurance W. F. (1995). Rainforest mammals in a fragmented landscape. In ‘Landscape Approaches in Mammalian Ecology and Conservation’. (Ed. W. Z. Lidicker Jr.) pp. 46–63. (University of Minnesota Press: Minneapolis, MN.)

Laurance S. G. Laurance W. F. 1999 Tropical wildlife corridors: use of linear rainforest remnants by arboreal mammals. Biological Conservation 91 231 239 doi:10.1016/S0006-3207(99)00077-4

Laurance W. F. Laurance S. G. Hilbert D. W. 2008 Long-term dynamics of a fragmented rainforest mammal assemblage. Conservation Biology 22 1154 1164 doi:10.1111/j.1523-1739.2008.00981.x

Lindenmayer D. B. Cunningham R. B. Donnelly C. F. 1993 The conservation of arboreal marsupials in the montane ash forest of the central highlands of Victoria, south-eastern Australia. IV. The presence and abundance of arboreal marsupial in retained linear habitat (wild life corridors) within logged forest. Biological Conservation 66 207 221 doi:10.1016/0006-3207(93)90006-M

Lindenmayer D. B. Cunningham R. B. Donnelly C. F. Triggs B. J. Belvedere M. 1994 The conservation of arboreal marsupials in the montane ash forests of the central highlands of Victoria, south-east Australia. V. Patterns of use and the microhabitat requirements of the mountain brushtail possum Trichosurus caninus. Ogilby in retained linear strips (wildlife corridors). Biological Conservation 68 51 53 doi:10.1016/0006-3207(94)90545-2

Lindenmayer D. B. Cunningham R. B. Donnelly C. F. 1997 Decay and collapse of trees with hollows in eastern Australian forest: impacts on arboreal marsupials. Ecological Applications 7 625 641 doi:10.1890/1051-0761(1997)007[0625:DACOTW]2.0.CO;2

Otero L. (2006). ‘La huella del fuego. Pehuen ediciones.’ (CONAF: Santiago, Chile.)

Patterson B. D. Meserve P. L. Lang B. K. 1990 Quantitative habitat associations of small mammals along an elevational transect in temperate rainforests of Chile. Journal of Mammalogy 71 620 633 doi:10.2307/1381803

Perault D. R. Lomolino M. V. 2000 Corridors and mammal community structure across a fragmented, old-growth forest landscape. Ecological Monographs 70 401 422 doi:10.1890/0012-9615(2000)070[0401:CAMCSA]2.0.CO;2

R Development Core Team (2010). R: a language and environment for statistical computing. R Foundation for Statistical Computing, Vienna, Austria. Available at http://www.R-project.org [verified May 2010].

Rodríguez-Cabal M. A. Aizen M. A. Novaro A. J. 2007 Habitat fragmentation disrupts a plant disperser mutualism in the temperate forests of South America. Biological Conservation 139 195 202 doi:10.1016/j.biocon.2007.06.014

Sabo J. L. Sponseller R. Dixon M. Gade K. Harms T. et al 2005 Riparian zones increase regional species richness by harboring different, not more, species. Ecology 86 56 62 doi:10.1890/04-0668

Simberloff D. Farr J. Cox J. Mehlman D. W. 1992 Movement corridors: conservation bargains or poor investments? Conservation Biology 6 493 504 doi:10.1046/j.1523-1739.1992.06040493.x

Tewksbury J. J. Levey D. J. Haddad N. M. Sargent S. Orrock J. L. Weldon A. Danielson B. J. Brinkerhoff J. Damschen E. I. Townsend P. 2002 Corridors affect plants, animals, and their interactions in fragmented landscapes. Proceedings of the National Academy of Sciences, USA 99 12 923 12 926 doi:10.1073/pnas.202242699

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