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Activity patterns of the water opossum Chironectes minimus in Atlantic Forest rivers of south-eastern Brazil

Published online by Cambridge University Press:  04 April 2013

Melina de Souza Leite ,
Thiago Lopes Queiroz ,
Maron Galliez ,
Patrícia Pinto de Mendonça  and
Fernando A. S. Fernandez
Melina de Souza Leite*
Affiliation:
Laboratório de Ecologia e Conservação de Populações, Departamento de Ecologia, Universidade Federal do Rio de Janeiro, CxP 68020, Rio de Janeiro, RJ, Brazil, 21941-590
Thiago Lopes Queiroz
Affiliation:
Laboratório de Ecologia e Conservação de Populações, Departamento de Ecologia, Universidade Federal do Rio de Janeiro, CxP 68020, Rio de Janeiro, RJ, Brazil, 21941-590
Maron Galliez
Affiliation:
Laboratório de Ecologia e Conservação de Populações, Departamento de Ecologia, Universidade Federal do Rio de Janeiro, CxP 68020, Rio de Janeiro, RJ, Brazil, 21941-590
Patrícia Pinto de Mendonça
Affiliation:
Laboratório de Ecologia e Conservação de Populações, Departamento de Ecologia, Universidade Federal do Rio de Janeiro, CxP 68020, Rio de Janeiro, RJ, Brazil, 21941-590
Fernando A. S. Fernandez
Affiliation:
Laboratório de Ecologia e Conservação de Populações, Departamento de Ecologia, Universidade Federal do Rio de Janeiro, CxP 68020, Rio de Janeiro, RJ, Brazil, 21941-590
*
1Corresponding author. Present address: Departamento de Ecologia, Universidade de São Paulo, São Paulo, SP, Brazil, Rua do Matão 321, Travessa 14. 05508-090. Email: melina.leite@ib.usp.br
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Abstract:

The activity of the water opossum Chironectes minimus was studied in Atlantic forest rivers in south-eastern Brazil using radiotracking, from October 2004 to October 2008. There were 439 nocturnal fixes of 11 males and four females. Activity patterns of the water opossum were compared among sexes and seasons, using linear and generalized linear mixed models. The water opossum is active mostly at night, showing a unimodal pattern, with activity increasing after sunset and decreasing thereafter along the night. Females were more active in the first quarter of the night and males in the second one. The activity period of males was longer in the dry season, while for females it was longer in the wet season. Sex and season were important determinants of the water opossum activity patterns, mainly because of different sex strategies in a promiscuous/polygynous mating system. However, despite those influences the overall distribution of activity along the night was similar to most Neotropical marsupials. Therefore, similarities in the activity patterns are probably due to phylogenetic constraints and to the absence or weakness of selective pressures modifying the activity of the water opossum.

Keywords

behaviourdiel activitymarsupialsNeotropicalradiotracking
Type
Short Communication
Information
Journal of Tropical Ecology , Volume 29 , Issue 3 , May 2013 , pp. 261 - 264
Copyright
Copyright © Cambridge University Press 2013 

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References

LITERATURE CITED

BARTNESS, T. J. & ALBERS, H. E. 2000. Activity patterns and the biological clock in mammals. Pp. 23–47 in Halle, S. & Stenseth, N. C. (eds.). Activity patterns in small mammals: an ecological approach. Springer, Berlin. 320 pp.CrossRefGoogle Scholar
BOLKER, B. M., BROOKS, M. E., CLARK, C. J., GEANGE, S., POULSEN, J. R., STEVENS, M. H. & WHITE, J.-S. S. 2008. Generalized linear mixed models: a practical guide for ecology and evolution. Trends in Ecology and Evolution 24:127–135.CrossRefGoogle Scholar
BURNHAM, K. P. & ANDERSON, D. R. 2002. Model selection and multimodel inference: a practical information-theoretical approach. Springer, New York. 488 pp.Google Scholar
EISENBERG, J. F. 1981. The mammalian radiations – an analysis of trends in evolution, adaptation, and behavior. The University of Chicago Press, Chicago.Google Scholar
GALLIEZ, M. & FERNANDEZ, F. A. S. 2012. Spatial segregation between the water opossum Chironectes minimus and the water rat Nectomys squamipes: just competition avoidance or a conservation problem as well? Mammalian Biology 77:447–450.CrossRefGoogle Scholar
GALLIEZ, M., LEITE, M. S., QUEIROZ, T. L. & FERNANDEZ, F. A. S. 2009. Ecology of the water opossum Chironectes minimus in Atlantic Forest streams of south-eastern Brazil. Journal of Mammalogy 90:93–103.CrossRefGoogle Scholar
KRONFELD-SCHOR, N. & DAYAN, T. 2003. Partitioning of time as an ecological resource. Annual Review of Ecology and Systematics 34:153–181.CrossRefGoogle Scholar
MARCELLI, M., FUSILLO, L. & BOITANI, L. 2003. Sexual segregation in the activity patterns of European polecats (Mustela putorius). Journal of Zoology 261:249–265.CrossRefGoogle Scholar
MARSHALL, L. G. 1978. Chironectes minimus. Mammalian Species 109:1–6.Google Scholar
MCMANUS, J. J. 1971. Activity of captive Didelphis marsupialis. Journal of Mammalogy 52:846–848.CrossRefGoogle ScholarPubMed
MONDOLFI, E. & PADILHA, G. M. 1958. Contribuición al conocimiento del “perrito de agua” (Chironectes minimus Zimmermann). Memoria de la Sociedad de Ciências Naturales La Salle 17:141–155.Google Scholar
NOWAK, R. M. 1991. Walker's mammals of the world. (Fifth edition). Johns Hopkins University Press, Baltimore. 1936 pp.Google Scholar
OLIVEIRA-SANTOS, L., TORTATO, M. & GRAIPEL, M. 2008. Activity pattern of Atlantic Forest small arboreal mammals as revealed by camera traps. Journal of Tropical Ecology 24:563–567.CrossRefGoogle Scholar
QUEIROZ, T. L. 2010. Dinâmica populacional da cuíca d'água Chironectes minimus em rios de Mata Atlântica. M.Sc. thesis, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil.Google Scholar
ROLL, U., DAYAN, T. & KRONFELD-SCHOR, N. 2006. On the role of phylogeny in determining activity patterns of rodents. Evolutionary Ecology 20:479–490.CrossRefGoogle Scholar
STREILEIN, K. E. 1982. Behavior, ecology and distribution of the South American marsupials. Pp. 231–250 in Mares, M. A. & Genoways, H. H. (eds.). Mammalian biology in South America. Special Publication Series 6. Pymatuning Laboratory of Ecology, University of Pittsburgh.Google Scholar
SUNQUIST, M. E., AUSTAD, S. N. & SUNQUIST, F. 1987. Movement patterns and home range in the common opossum (Didelphis marsupialis). Journal of Mammalogy 68:173–176.CrossRefGoogle Scholar
VIEIRA, E. & BAUMGARTEN, L. 1995. Daily activity patterns of small mammals in a Cerrado area from central Brazil. Journal of Tropical Ecology 11:255–262.CrossRefGoogle Scholar
WHITE, G. C. & GARROT, R. A. 1990. Analysis of wildlife radiotracking data. Academic Press, San Diego. 383 pp.Google Scholar
ZETEK, J. 1930. The water opossum – Chironectes panamensis Goldman. Journal of Mammalogy 11:470–471.CrossRefGoogle Scholar