Mammalian Biology

, Volume 75, Issue 3, pp 270–276 | Cite as

Use of space by Necromys lasiurus (Rodentia, Sigmodontinae) in a grassland among Atlantic Forest fragments

  • Alexandra dos Santos Pires
  • Fernando Antonio dos Santos FernandezEmail author
  • Barbara Regina Feliciano
  • Daniela de Freitas
Original Investigation


The spatial patterns presented by the rodent Necromys lasiurus were studied through capture-mark-recapture in a grassland among Atlantic Coastal Forest fragments in Southeastern Brazil. Males moved farther than females. Males moved similar distances in the dry and wet seasons, whereas females moved significantly longer distances in the dry season. Home ranges sizes were estimated for 32 individuals, and varied from 0.02 to 0.52 ha. Males had larger home ranges than females when all data are pooled and in the wet season; in the dry season home ranges of both sexes were of similar sizes. Home range sizes did not vary significantly between seasons for either sex. Home ranges of males overlapped extensively among themselves and with females, whereas females showed mutually exclusive home ranges. The spatial patterns described here are consistent with the results found for this species in different habitats and they suggest that N. lasiurus has a promiscuous mating system.


Necromys lasiurus Home range Mating systems Rodents Territoriality 


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Copyright information

© Deutsche Gesellschaft für Säugetierkunde 2009

Authors and Affiliations

  • Alexandra dos Santos Pires
    • 1
  • Fernando Antonio dos Santos Fernandez
    • 1
    Email author
  • Barbara Regina Feliciano
    • 1
  • Daniela de Freitas
    • 1
  1. 1.Laboratório de Ecologia e Conservação de Populações, Departamento de EcologiaUniversidade Federal do Rio de JaneiroRio de JaneiroBrazil

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