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Intraspecific behavioural interactions in Apodemus microps: a peaceful mouse?

100%

Suchomelova E., Frynta D.

Acta Theriologica

2000

tom 45

nr 2

Social interactions of captive Apodemus microps Kratochvil et Rosicky, 1952 were studied in dyadic encounters. In neutral-cage conditions both sexes showed exceptionally high proportion of amicable behaviour (on average ca 30% of the total time) and very low proportion of agonistic behaviour (up to 2.1%), when compared to patterns reported in other Apodemus species. The high share of amicable behaviour cannot be simply explained by decreased aggression. Mice actively offered amicable acts to their unfamiliar conspecifics even during the short-time (ten-minute) encounters. This phenomenon may be interpreted as a cooperative strategy. However, the near absence of aggression in A. microps could be altered by specific social contexts: males, but not females, became mutually agonistic when tested in a home-cage or in the presence of a female.

Facultative promiscuity in a presumably monogamous mouse Apodemus microps

100%

Bryja J., Stopka P.

Acta Theriologica

2005

tom 50

nr 2

Promiscuity and monogamy are two extremes of fitness optimisation. Direct evidence for both extremes is documented in numerous studies where a measure of promiscuity/monogamy is often the number of fathers in individual litters using, for example, fragment analysis of highly polymorphic microsatellite loci. In this study, five known polymorphic microsatellite loci were used to assess biological parentage of 174 embryos of 24 pregnant females from a natural Czech population of pygmy field-miceApodemus microps Kratochvíl et Rosický, 1952. The results revealed that the majority (67%) of litters were fathered by single males. However, there was a trend showing that the number of males successively (but not significantly) increased during the season, thus suggesting that monogamy in the pygmy field mouse is not obligatory but may depend on a population density and habitat type.

Myszy i ludzie

59%

Konczak J.

Salamandra:Magazyn Przyrodniczy

2015

nr 1

Ograniczanie wyników

2 Acta Theriologica

1 Salamandra:Magazyn Przyrodniczy

1 Bryja J.

1 Frynta D.

1 Konczak J.

1 Stopka P.

1 Suchomelova E.

1 2015

1 2005

1 2000

Wyniki wyszukiwania

Intraspecific behavioural interactions in Apodemus microps: a peaceful mouse?

Facultative promiscuity in a presumably monogamous mouse Apodemus microps

Myszy i ludzie