0000000000634488

AUTHOR

Pernilla Jonsson

showing 2 related works from this author

Optimal allocation of reproductive effort: manipulation of offspring number and size in the bank vole

2001

The number of offspring attaining reproductive age is an important measure of an individual's fitness. However, reproductive success is generally constrained by a trade-off between offspring number and quality. We conducted a factorial experiment in order to study the effects of an artificial enlargement of offspring number and size on the reproductive success of female bank voles (Clethrionomys glareolus). We also studied the effects of the manipulations on growth, survival and reproductive success of the offspring. Potentially confounding effects of varying maternal quality were avoided by cross-fostering. Our results showed that the number of offspring alive in the next breeding season w…

Litter (animal)Litter SizeOffspringmedia_common.quotation_subjectWeaningArticleGeneral Biochemistry Genetics and Molecular BiologyPregnancySeasonal breedermedicineAnimalsMaternal BehaviorFinlandGeneral Environmental Sciencemedia_commonPregnancyGeneral Immunology and MicrobiologybiologyReproductive successArvicolinaeEcologyReproductionBody WeightGeneral Medicinemedicine.diseasebiology.organism_classificationBank voleFemaleSeasonsParent–offspring conflictReproductionGeneral Agricultural and Biological SciencesDemographyProceedings of the Royal Society of London. Series B: Biological Sciences
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Does risk of predation by mammalian predators affect the spacing behaviour of rodents? Two large-scale experiments.

2000

Predator-prey interactions between small mammals and their avian and mammalian predators have attracted much attention. However, large-scale field experiments examining small-mammal antipredatory responses under the risk of predation by mammals are rare. As recently pointed out, the scale of experiments may cause misleading results in studies of decision-making under predation risk. We studied the effect of small mustelid predators on the spacing behaviour of the gray-tailed vole (Microtus canicaudus) and the bank vole (Clethrionomys glareolus) in two separate field enclosure experiments. The experiments were conducted during the breeding season in North America and northern Europe, where s…

Bank volebiologyEcologyMicrotus canicaudusHome rangeSeasonal breederMustelidaeVolebiology.organism_classificationEcology Evolution Behavior and SystematicsMuridaePredationOecologia
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